Indonesia · roaming cost calculator
Roaming Price Audit: What 8 Days of Data Cost in Indonesia
HelloRoam is the top pick for Indonesia: its 7-day unlimited plan costs $21.50, at full speed for the first 2 GB a day, against $84 for a week on AT&T's $12-a-day pass, a $62 gap, and Saily is next cheapest at $26.99. HelloRoam takes checkout through Stripe, with Apple Pay and Google Pay, in 31+ currencies. Airalo covers 200+ destinations to HelloRoam's 185. HelloRoam's price is from its catalogue of 29 Oct 2026, rivals' from the 30 Oct 2026 price check; AT&T's rate was checked June 2026.
Two prices sit on this page. AT&T bills $12 a day for Indonesia and a 20GB travel eSIM at $31.49 bills once, both in dollars. HelloRoam bills in 31 checkout currencies.
Airalo, Holafly and Saily plans, Indonesia
HelloRoam's Indonesia eSIM uses local 5G towers. Seven days of unlimited data cost $21.50, against the $84 AT&T bills for seven International Day Pass days at $12 each.
Get eSIMHolafly's unlimited plan in Indonesia runs on a local 5G network at a median $3.93/day. For a 10-day trip, that totals $39.30, less than the $120 ten days of AT&T roaming at $12/day cost.
Get eSIMNomad sells Indonesia plans with no extras — just 5G data starting at $2.30/GB. No VPN, no cashback program, no upsells at checkout.
Get eSIMAiralo runs support through in-app chat. For Indonesia trips where setup goes smoothly — device compatible, QR code scanned before departure — most travelers never open a ticket.
Get eSIMSaily's app puts the VPN toggle on the same screen as the data balance. A Indonesia plan runs $2.60/GB on a local 5G network.
Get eSIMCompare providers: Airalo vs Holafly · Airalo vs Saily · Airalo vs Nomad · Airalo vs HelloRoam · Holafly vs Saily · Holafly vs Nomad · Holafly vs HelloRoam · Saily vs Nomad · Saily vs HelloRoam · Nomad vs HelloRoam
The full picture
Published carrier rates on travel data, Indonesia
Every major carrier's published Indonesia rate, side by side, with the eSIM winner highlighted.
| Carrier | Plan type | Daily | 7-day | Speed | Data limit |
|---|---|---|---|---|---|
| AT&T | International Day Pass | $12.00source | $84.00 | LTE | Plan data |
| Verizon | TravelPass | $12.00source | $84.00 | LTE | Plan data |
| T-Mobile | International Pass | $10.00*source | $50.00 | LTE | 2GB per 1 Day pass |
| eSIM · HelloRoam | 20GB data plan | — | $31.49 | 5G | 20GB |
*T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. The 1 Day International Pass costs $10; the 7-day figure is the cheapest pass mix, 10-day pass.
Compare all carrier roaming plans to see how AT&T, Verizon, T-Mobile, Vodafone, and EE stack up against eSIM providers.
Pay-per-use cost audit
Indonesia data charges on AT&T pay-per-use: real dollar amounts
AT&T's international pay-per-use rate is $2.05/MB in Indonesia. Mixed phone use — maps, messaging, and social media — runs about 60 MB/hour. One hour of that: $123. Four hours of normal use: $492. Eight hours, a full day out: $984. A 30-minute Zoom meeting alone adds $922. A 5-minute video call with family costs $154. These are AT&T's published pay-per-use figures. Source: AT&T international rate card, June 2026.
Personalize your savings
Your Indonesia saving against $12 a day
Adjust the trip length, the carrier and the daily data below and the calculator reprices both sides. The starting point is the 8-day average stay recorded for Indonesia: $96 on an AT&T day pass at $12 a day, against $31.49 for a 20GB travel eSIM. Both prices buy access to the same local operators.
Network coverage
Indonesia LTE and 5G coverage breakdown
Telkomsel sets the wholesale roaming rate for Indonesia. AT&T marks that rate up to $12/day for its customers. Travel eSIM providers sell the same Telkomsel access from $0.84/GB. Pull up AT&T's roaming rate card for Indonesia and a travel eSIM plan side by side. The network is Telkomsel in both cases. The price is not. Indonesia has 5G through Telkomsel. There is no 5G-premium tier in carrier roaming or eSIM plans. AT&T's $12/day covers 5G. An eSIM at $0.84/GB covers 5G. You do not pay more for faster service under either model. Indonesia has limited 5G coverage. Telkomsel launched 5G in Jakarta and Bali in 2023; expansion slow across archipelago Telkomsel provides the most reliable coverage across Indonesian islands; other carriers have significant gaps outside Java.
Network attachment record
The networks behind both prices in Indonesia
HelloRoam publishes 3 local operators for Indonesia: Smartfren, Telkomsel and XL.
An eSIM attaches to one of them on arrival.
HelloRoam names no default, so the file cannot say which one your handset picks.
HelloRoam records a 5G label against 1 of the 3 operators.
Carrier roaming runs on local operators too. That is what a roaming agreement buys.
Same masts, two invoices. The gap on this page is a billing gap.
5G and 4G here are capability labels. Neither one is a speed reading.
The operator file behind this page covers 185 destinations and 154 operators, 98 of those destinations carrying a 5G label. Indonesia is one of 68 destinations with more than one operator on file: Smartfren, Telkomsel and XL. Carrier roaming reaches the same radios, so the gap between the two prices is a billing gap.
| Operator | Network generation on file |
|---|---|
| Smartfren | 4G |
| Telkomsel | 5G |
| XL | 4G |
Source: HelloRoam package feed, read 17 August 2026. The feed publishes an operator list for every destination it sells. No speed test sits behind this table, and we ran none. The full operator map covers 185 destinations.
Pricing breakdown
eSIM plan costs vs carrier charges in Indonesia
Carrier roaming costs for 14 days in Indonesia, ranked: T-Mobile high-speed add-on $75, Verizon TravelPass $168, AT&T International Day Pass $120, eSIM 20GB on a local network $31.49. The eSIM option costs 74% less than AT&T, which bills $12 a day.
The eSIM daily rate works out to $2.25 when spread across 14 days. AT&T charges $12/day, which is 5.3x that figure. T-Mobile's high-speed pass is $10/day. All three connect to the same local towers in Indonesia. Gojek rides in Bali cost $1-3 but require a local number — budget an extra $5 for a secondary local SIM if needed.
Per-GB rates for Indonesia eSIM plans: 1GB at $3.99 ($3.99/GB), 3GB at $7.99 ($2.66/GB), 5GB at $12.49 ($2.50/GB), 10GB at $19.49 ($1.95/GB), 20GB at $31.49 ($1.57/GB). Larger plans cost less per gigabyte, so buying up one tier saves money if you are close to the limit. Unlimited daily plans remove the per-GB calculation entirely at $2.79/day for 14 days. Indonesia travel eSIM prices are very competitive at $0.84/GB — but local prepaid SIMs offer even better value at $0.20-0.50/GB. Travelers in Indonesia average 1.3GB of mobile data per day, so a 14-day trip needs roughly 19GB.
Unlimited data for Indonesia starts at $3.49 for 1 day and runs to $71.20 for 30, priced 1 day at $3.49, 3 days at $9.95, 7 days at $21.50, 14 days at $39.09, 30 days at $71.20. Unlimited here means 2GB a day at full speed before a fair-use policy applies. Catalogue prices read 29 Oct 2026.
Trip cost breakdown
Indonesia roaming bill by trip type
If you visit Indonesia for 3 days and need 2GB for maps and messaging: AT&T charges $36 ($12/day x 3 days). A 3GB eSIM on a local network costs $7.99. You save $28.01.
If you visit for 14 days with 15GB of photos and video calls: AT&T reaches $120 per line, at most 10 daily fees each bill cycle. A 20GB eSIM on a local network covers the same stay for $31.49 — $88.51 less, a 74% reduction.
If you stay 30 days and need 50GB for video calls and streaming: AT&T totals $120 over the month, its cap of 10 daily fees in one bill cycle. A 50GB eSIM on a local network costs $56.69. You save $63.31 (53%). Rates checked June 2026.
Airport options
Airport data options when you land in Indonesia
The posted price at Ngurah Rai / Bali (DPS) / Soekarno-Hatta (CGK)'s Telkomsel and XL Axiata and Indosat counter is $5-15 for 5-20GB / 15-30 days. That figure may not include applicable taxes or activation fees added at the counter. Passport or ID is required for SIM registration. A 1GB eSIM at $3.99 is an all-in price paid online — no surprises at checkout. Off-airport shops in Indonesia sell SIMs for $3-8 for 5-15GB / 30 days, the lower-cost option if you have extra time.
Local alternative
Local SIM vs eSIM in Indonesia
A local SIM in Indonesia costs $3-8 for 5-15GB / 30 days at Telkomsel and XL Axiata and Indosat. Per-gigabyte, the local option is cheaper than the cheapest travel eSIM at $3.99. The trade-off: you wait 10-20 min; IMEI check may add time at the airport counter, need a passport for registration, and lose your home number while the local SIM is active.
Data planning
GB requirements for 8 days in Indonesia
Indonesia has solid hotel and cafe WiFi, which trims cellular data use. With WiFi for large downloads, your mobile data averages closer to 1.3GB per day. A 20GB plan at $31.49 covers 11GB for 8 days.
For a 8-day trip, the 20GB plan at $31.49 covers 11GB at $1.57/GB. AT&T's roaming pass for the same 8 days reaches $96. For heavy data users, a 1-day unlimited plan costs $3.49, still under AT&T's $12/day pass.
Connectivity
Indonesia internet access: WiFi coverage vs eSIM availability
WiFi in Indonesia: Free WiFi in most cafes and hotels in Bali and Jakarta; coverage limited in remote islands Cafes and hotel lobbies are your best bets. Street-level coverage is rare. An eSIM keeps you connected when WiFi drops — directions, translations, and payment apps all need steady data.
Plan your data
Indonesia data consumption: what to expect
Hotels in Indonesia charge $10-$20/day for in-room WiFi — and that only covers your room. AT&T roaming adds $12/day for data outside the hotel. A 20GB eSIM on a local network at $31.49 covers the full 8 days everywhere, with no daily hotel WiFi fee needed.
Indonesia runs 3 mobile networks: Telkomsel, XL, and Smartfren. AT&T and Verizon both route your roaming calls through these same carriers. An eSIM connects to a local network through the same infrastructure at $0.84/GB. Your carrier routes through the same towers — only the bill is different.
Airport SIM counters at Ngurah Rai / Bali (DPS) / Soekarno-Hatta (CGK) charge $5-15 for 5-20GB / 15-30 days after a 10-20 min; IMEI check may add time wait — still more than a 20GB eSIM at $31.49. Local prepaid SIMs in Indonesia run $3-8 for 5-15GB / 30 days, requiring an in-person stop and sometimes a passport copy. An eSIM at $31.49 skips that entirely. Prices stable; Bali airport counters charge 30-50% premium over city stores
Quick reference
Indonesia Travel Essentials
112/119
112, 119 are the emergency numbers in Indonesia. Different numbers may route to different services — save all of them before your trip. Emergency calls work from any mobile device, including travel eSIMs.
Type C/F
Indonesia uses Type C outlets (European two round-prong). US plugs require a Type C adapter. Check that your phone and laptop chargers show 100-240V input — most modern chargers are compatible.
WIB/WITA/WIT (UTC+7 to +9)
IDR (Rp)
Tap-to-pay (Apple Pay, Google Pay) is accepted at most stores and restaurants in Indonesia. Visa and Mastercard work at virtually all merchants. Carry a small amount of local IDR for markets, taxis, and small vendors that do not have card readers.
Quick tip
Indonesia sees highest visitor volumes in Apr-Oct and Dec-Jan. Airport telecom kiosks can have 20-40 minute queues at peak arrivals. An eSIM purchased in advance activates before you clear customs.
Quick tip
Prices in Indonesia are in IDR (Rp). Buying an eSIM in USD before departure removes the variable of exchange rates affecting your data cost mid-trip.
Step by step
Step-by-step: set up your Indonesia eSIM before you fly
- On Samsung Galaxy S21 or newer: go to Settings > Connections > SIM manager to verify eSIM support — Pixel 3a and later also qualifies — Telkomsel covers 5G in Indonesia
- First-time buyer: HelloRoam offers Indonesia data at $3.99 for 1GB — create an account, add a payment method, and your QR code arrives in under 60 seconds. Compare eSIM providers to see your options.
- First-time eSIM install: your phone walks you through the QR scan step by step — the profile downloads in 10-30 seconds over a WiFi connection — do this before your flight to Ngurah Rai / Bali (DPS) / Soekarno-Hatta (CGK) so it activates the moment you land
- Returning traveler shortcut: set your home carrier SIM to Data Off in the dual-SIM panel rather than navigating through roaming menus. The full data roaming guide covers all shortcuts.
- Enable the eSIM data line at Ngurah Rai / Bali (DPS) / Soekarno-Hatta (CGK) — it connects to Telkomsel automatically
- Leave your home SIM enabled for incoming calls: WiFi Calling routes them over the eSIM data connection at no extra cost
Data tips
How to stretch your data in Indonesia
Local transit apps in Indonesia use about 5-15 MB per route lookup including map tiles. Download the relevant transit app before departure and log in over WiFi. Google Maps works for transit directions in most Indonesia cities with under 10 MB per query when offline maps are pre-loaded.
Regional context
Asia roaming rates and how Indonesia fits in
A few things to know before turning off carrier roaming in Indonesia:
All devices must be IMEI-registered to use Indonesian SIM cards; international roaming and travel eSIMs are exempt IMEI registration applies regardless of whether you use carrier roaming or a travel eSIM — it is tied to your handset, not your SIM.
Indonesia SIM registration: NIK (national ID) or passport required; biometric verification needed. A travel eSIM purchased abroad bypasses local SIM registration requirements at the point of sale.
Gojek and Grab require an Indonesian phone number for registration — data-only eSIMs won't work for ride-hailing app signup
IMEI registration applies to local SIMs only; travel eSIMs using international roaming bypass this requirement
Indonesia spans 3 time zones — check which zone your destination uses
WhatsApp is the primary communication tool across the country — more popular than SMS
Mobile signal can be unreliable between islands; Telkomsel has the widest archipelago coverage
Free WiFi in most cafes and hotels in Bali and Jakarta; coverage limited in remote islands Roaming passes charge $12/day to fill WiFi gaps. An eSIM covers the same connectivity at $0.84/GB.
IMEI registration makes local SIM activation more complex for tourists — eSIM completely bypasses this regulatory hurdle.
Dry season April-October is peak for Bali; Christmas/New Year brings second wave
Nearby
Related destinations
6 destinations near Indonesia are priced on the same rate card. AT&T bills $12 a day in every one of them, and the figure beside each flag is that destination's own per-gigabyte floor. The cheapest of the group is Bangladesh at $1.25 a gigabyte.
Forgot your eSIM?
You forgot to buy an eSIM for Indonesia — here is what to do
The fastest emergency option in Indonesia: turn on AT&T cellular data long enough to download the Airalo app. The app download is approximately 5 MB. At AT&T's $2.05/MB pay-per-use rate, that download costs $10. Once the app is installed, turn carrier data back off. Connect to Ngurah Rai / Bali (DPS) / Soekarno-Hatta (CGK)'s free WiFi, buy a Indonesia eSIM plan, and scan the QR code. Your eSIM on a local network then handles all data at $3.99 for 1GB. The $10 carrier charge is a one-time cost, not a daily fee. AT&T's International Day Pass costs $12 for that same day and $12 again for every day after it.
Savings math
How much you save in Indonesia
Solo traveler
T-Mobile's Experience plans include 5GB or 15GB of high-speed data abroad, then up to 256Kbps. More high-speed data in Indonesia takes International Passes from $10 a day, $50 over 8 days at the cheapest mix (10-day pass). A 20GB eSIM on a local network delivers full 5G for $31.49. The gap: $18.51 (37%). At 256Kbps the included data is usable mainly for text messages.
Family trip
Two travelers on Verizon in Indonesia for 8 days: 2 lines x $12/day x 8 = $192. Two 20GB eSIMs: $62.98. Savings: $129.02 for the couple. If only one person needs heavy data, one eSIM with tethering costs $31.49 total and covers both devices through the phone's hotspot feature.
AT&T roaming rate analysis
AT&T International Day Pass billing for Indonesia: $12 covers 24 hours from the first time your phone uses a local network. A background sync after that window closes starts the next $12 fee. AT&T bills at most 10 daily fees per line each bill cycle, and $6 for each extra line used the same day. Over 8 days the pass costs $96. A 20GB eSIM at $31.49 uses data-bucket billing, which charges for data bought, not for days used.
All-carrier summary
AT&T: AT&T International Day Pass costs 205% more than an eSIM for Indonesia.
Verizon: Verizon TravelPass costs 205% more than an eSIM for Indonesia.
T-Mobile: T-Mobile's International Passes cost 59% more than an eSIM for Indonesia.
The savings math for Indonesia is clear. Solo: $64.51 saved vs AT&T for 8 days. Family of four: $114.04 saved. Annual (2 trips): $129.02 saved. All figures use the same local 5G network. The eSIM costs less at every trip length and every group size.
Quick answers
Common questions about Indonesia data costs
Is eSIM cheaper than roaming in Indonesia?
Yes, an eSIM is 67% cheaper than carrier roaming in Indonesia. AT&T charges $96 for a 8-day trip at $12/day. A travel eSIM on a local 5G network costs $31.49 for 20GB. Both use the same cell towers. The eSIM saves $64.51 on identical infrastructure. Rates checked June 2026.
How much does roaming cost in Indonesia?
Indonesia roaming costs per device: AT&T $96, Verizon $96 (8 days). A family of four pays $384 on AT&T. Four eSIMs on a local network: $125.96. Rates checked June 2026.
Does T-Mobile work in Indonesia?
Yes, within the plan's allowance. T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. At 256Kbps Google Maps and ride-hailing apps stall. T-Mobile's 1 Day International Pass costs $10 for 2GB, and a week of passes $50 (10-day pass). A travel eSIM on a local 5G network costs $31.49 for 20GB over 8 days. Rates checked June 2026.
AT&T fine print for Indonesia
$12 covers 24 hours from the first time your phone uses a foreign network, and a single background push notification at 2 AM can start it. AT&T bills at most 10 daily fees per line each bill cycle (terms read 31 Oct 2026).
iCloud Photos, email push, app updates all trigger the daily charge. A phone left in a bag with data roaming on starts a new $12 fee each time a sync lands after the last 24 hours ran out.
Indonesia FAQ
Indonesia eSIM & roaming questions
Indonesia carrier roaming costs $12 a day on AT&T and on Verizon
AT&T charges $12/day on International Day Pass for Indonesia. Verizon charges $12/day on TravelPass. T-Mobile's Experience More and Experience Beyond plans include 5GB and 15GB of high-speed data abroad, then at a reduced speed, and Essentials includes texting only. Land without a plan and AT&T bills $2.05/MB, so a single gigabyte costs $2,099. Five travel eSIM providers sell Indonesia data against those rates: HelloRoam, Holafly, Nomad, Airalo, and Saily. Fixed plans start at $3.99 for 1GB on a local 5G network. HelloRoam posts the lowest fixed rate in the group, $2.01/GB on the median 5 GB plan across 40 countries, against $2.30 on Nomad. HelloRoam's 7-day unlimited plan has the lowest median of the five at $21.50 across 35 countries, against $27.50 on Holafly. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
T-Mobile's included data in Indonesia runs at high speed until the allowance ends
For light use, yes. T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. Even at 256Kbps you stay reachable on WhatsApp and iMessage text in Indonesia, which is more than AT&T gives you without a pass. Fixed-data eSIM plans across HelloRoam, Holafly, Nomad, Airalo, and Saily run full 5G on a local network from $0.84/GB, with no daily activation trigger. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
Indonesia roaming bills by the day, not by the gigabyte
A traveler lands in Indonesia, checks one notification, and AT&T bills $12 for the next 24 hours. That is per-day billing: any cellular connection, including a background sync, starts the full 24-hour charge. Without a day pass the rate is $2.05/MB, so a 20 MB burst of photo syncing costs $41. An eSIM is a fixed cost at 1GB for $3.99, with no per-day trigger and no per-MB meter. HelloRoam's unlimited plan removes the meter a different way, at a 7-day median of $21.50 against $27.50 on Holafly. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
A week of Indonesia data, priced across the five eSIM providers
A week of unlimited data is the like-for-like price. The median 7-day unlimited plan across the 35 countries where all five were priced costs $21.50 on HelloRoam, $25 on Nomad, $26.99 on Saily, $27 on Airalo, $27.50 on Holafly. In Indonesia the 7-day plan reads $21.50 on HelloRoam against $26.99 on Saily, the next cheapest. The plans differ in full-speed data: HelloRoam's plan runs at full speed for 2 GB a day in 33 of those 35 countries, while Airalo's holds 3 GB in most and Holafly states no daily cap. AT&T bills $84 for the same week in Indonesia at $12 a day, $62.50 more than the HelloRoam median. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
Cricket and Mint price Indonesia roaming against a travel eSIM
Cricket Wireless (AT&T MVNO) charges $12/day for international roaming in Indonesia — the same rate as AT&T, since Cricket runs on AT&T's billing infrastructure. Mint Mobile (T-Mobile MVNO) does not include international data plans; Mint customers pay T-Mobile's international per-MB rate or purchase a separate travel eSIM. A travel eSIM on Telkomsel at $0.84/GB is the lower-cost option for both Cricket and Mint subscribers traveling to Indonesia. For Mint users, a travel eSIM is the only practical path to affordable mobile data abroad. Rates checked June 2026.
The three US carriers price Indonesia roaming on different terms
None of the three US carriers offer a genuinely good deal in Indonesia. AT&T: $12/day. Verizon: $12/day. T-Mobile: 5GB or 15GB of high-speed data included on its Experience plans, then up to 256Kbps, or $10 for a 1 Day pass. A travel eSIM on Telkomsel starts at $0.84/GB — a 7-day trip at average usage costs $8.82 versus $84 for AT&T. No carrier matches the eSIM on per-GB cost.
A week of Indonesia data costs $84 on AT&T
AT&T International Day Pass: $12/day, $84 for 7 days. Verizon TravelPass: $12/day, $84. T-Mobile International Pass: $10/day, $50. The base T-Mobile tier costs nothing but runs too slow to be usable. Against T-Mobile's $10/day pass, a travel eSIM on Telkomsel runs roughly $8.82 for 7 days at 1.5 GB/day average usage. The eSIM is 80-90% cheaper than any paid carrier option.
Local Indonesia apps run on a travel eSIM without a local SIM
Most local apps in Indonesia — ride-hailing, food delivery, transit — do not require a local SIM number to function. They require only a data connection, which a travel eSIM provides at $0.84/GB on a local 5G network. Some banking and two-factor authentication apps require a local phone number for SMS verification. For those cases, keep your home SIM active alongside the eSIM — your home number handles SMS while the eSIM handles data.
One eSIM can cover a multi-country Asia route including Indonesia
Multi-country Asia eSIM plans exist and cover many combinations — Japan, South Korea, Thailand, Singapore, and others in a single data bucket. AT&T and Verizon charge $12/day in each country separately, so a 3-country trip at 3 days each costs $108. A regional Asia eSIM for the same 9 days runs $15-$40 total. Check plan coverage maps — Indonesia may be included in a regional plan, or you may need a Indonesia-specific plan plus a regional one.
A week of Indonesia carrier roaming costs $84
AT&T: $84/week (International Day Pass at $12/day). Verizon: $84/week (TravelPass). T-Mobile: 5GB or 15GB of high-speed data included on its Experience plans, then up to 256Kbps, or $50 for a week of passes (10-day pass). The cheapest eSIM for Indonesia starts at $0.84/GB on a local 5G network — better per-GB value than all three carriers.
Fact check
What carriers say vs. what your bill shows in Indonesia
You need to unlock your phone to use an eSIM
eSIM installation does not require an unlocked phone in most cases. iPhones sold in the US since iPhone 14 are sold unlocked by law. iPhones XS through 13 require unlocking to add a foreign carrier eSIM, but AT&T, Verizon, and T-Mobile all offer free unlocking after your contract ends. Samsung Galaxy S20 and newer models support eSIM on both locked and unlocked variants. Check your carrier's unlock policy before your trip to Indonesia.
Roaming charges only apply to data
US carrier international plans charge separately for data, calls, and texts. AT&T's International Day Pass at $12/day includes data but charges $0.25–$1.50/minute for calls beyond the bundled allocation. Incoming voicemail retrieval can trigger per-minute roaming charges even when you make no outgoing calls. A data-only eSIM in Indonesia at $3.99 covers data and uses WhatsApp or FaceTime for voice at no additional carrier cost. Rates checked June 2026.
EU roaming is free for Americans
EU roaming-within-the-EU rules apply only to SIM cards issued by EU-based carriers. AT&T and Verizon are US carriers — they charge full international day pass rates in every EU country. AT&T's International Day Pass runs $12/day in EU destinations. Verizon TravelPass is $12/day. A travel eSIM on a local network covers Indonesia for $3.99 total. Rates checked June 2026.
Our recommendation
Our pick, Indonesia
HelloRoam covers Indonesia on a local network and scores 9.9/10 on our rubric, the highest of the 5 providers we price. A 1GB plan costs $3.99. Unactivated plans are refundable for 180 days, and its support replies in your own language. That makes HelloRoam our pick for Indonesia. Holafly is the alternative for heavy data users: it states no daily cap, at a 7-day unlimited median of $27.50 on 30 Oct 2026.
Learn more
Travel guides, Indonesia
4 guides carry the parts of a Indonesia trip this page does not price: installing the profile before departure, switching data roaming off on the home SIM, and what happens to the allowance once a fair-use policy applies. Each one reads the same rate card as this page, where AT&T bills $12 a day.
Your carrier charges $84 for a Indonesia week. A 20GB eSIM costs $31.49.
Same networks, same speed. eSIM data costs a fraction of carrier roaming in Indonesia.
Get a Indonesia eSIM