Antigua and Barbuda · roaming cost calculator
Antigua and Barbuda Roaming Price Audit: $120 on AT&T, $157.68 on an eSIM
HelloRoam is the top pick for Antigua and Barbuda on this site's rubric, though its 7-day unlimited plan there costs $104.54, at full speed for the first 2 GB a day, above the $84 a week on AT&T's $12-a-day pass, so for one week the day pass costs less, and Holafly ranks second on this site's rubric. HelloRoam refunds an unactivated eSIM for 180 days. 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.
The Antigua and Barbuda audit below runs in dollars because the carrier bills in dollars. HelloRoam prices checkout in 31 currencies, so a $157.68 purchase can be paid without a dollar conversion.
Antigua and Barbuda eSIM market: plan tiers and pricing
HelloRoam connects to a local 4G LTE network in Antigua and Barbuda: fixed data from $10.13 for 1 GB over 7 days, and unlimited at $104.54 for 7 days of unlimited data, at full speed for the first 2 GB each day. Prices checked 30 Oct 2026.
Get eSIMIn Antigua and Barbuda, Holafly runs on a local network with unlimited data. Heavy users streaming video save against paying by the gigabyte elsewhere.
Get eSIMNomad's 30-day refund applies to unused Antigua and Barbuda eSIMs. Coverage runs on a local 4G LTE network at $2.30/GB — once the plan is activated, unused data is non-refundable.
Get eSIMAiralo's Antigua and Barbuda plan runs on a local 4G LTE network. At $2.40/GB, the eSIM costs less than a single day of AT&T roaming.
Get eSIMSaily sells Antigua and Barbuda data with built-in VPN protection at $2.60/GB. Nord Security's infrastructure backs every plan.
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
Antigua and Barbuda international day pass rates by carrier
Every major carrier's published Antigua and Barbuda 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 |
| Xfinity Mobile | International Pass | $10.00source | $70.00 | LTE | 200 MB/day |
| eSIM · HelloRoam | 20GB data plan | — | $157.68 | 4G LTE | 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.
* Xfinity Mobile International Pass: $10/day with 200 MB/day high-speed cap
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
What AT&T charges per activity in Antigua and Barbuda — no day pass
The worst-case AT&T pay-per-use scenario in Antigua and Barbuda: you land, turn off airplane mode, and forget to activate an international plan. Your phone syncs email, checks for app updates, and loads the map you opened. AT&T charges $2.05/MB in that state. A 30-minute Zoom call costs $922. 1 hour of Google Maps adds $102. Uploading 20 photos to iCloud runs $410. One hour of YouTube while hotel WiFi lags: $1025. A full gigabyte at AT&T's pay-per-use rate: $2,099. Source: AT&T international rate card, June 2026.
Personalize your savings
Your Antigua and Barbuda 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 10-day average stay recorded for Antigua and Barbuda: $120 on an AT&T day pass at $12 a day, against $157.68 for a 20GB travel eSIM. Both prices buy access to the same local operators.
Network coverage
Which networks operate in Antigua and Barbuda
Antigua and Barbuda has one mobile operator: FLOW. AT&T, Verizon, and travel eSIM providers all route through a local network. There is no network variable to compare — only price. AT&T: $12/day. eSIM: $6.85/GB. Paying carrier roaming rates buys no speed advantage in Antigua and Barbuda. The 4G LTE connection is the same on both. The network technology on a local network in Antigua and Barbuda is 4G LTE. AT&T roaming connects to that same 4G LTE signal. A travel eSIM connects to the same signal. No speed premium exists for roaming over eSIM.
Network attachment record
The networks behind both prices in Antigua and Barbuda
HelloRoam publishes one local operator for Antigua and Barbuda: FLOW.
One operator means no fallback network.
Where FLOW has no signal, an eSIM has nowhere else to attach.
HelloRoam records no 5G operator for Antigua and Barbuda.
Carrier roaming meets the same ceiling, because roaming rents local networks.
Price is what separates the two options in Antigua and Barbuda. This page prices both.
5G and 4G here are capability labels. Neither one is a speed reading.
FLOW carry the eSIM in Antigua and Barbuda. Across the whole file HelloRoam names 154 operators over 185 destinations, 117 of them with a single operator and 1.48 on average. Roaming buys wholesale access to that same list.
| Operator | Network generation on file |
|---|---|
| FLOW | 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
How roaming and eSIM costs compare in Antigua and Barbuda
AT&T International Day Pass in Antigua and Barbuda: 10 daily fees × $12 (AT&T's cap per bill cycle) = $120. eSIM 10GB plan on a local network: $68.50 for the same 14 days. Difference: $51.50 less than AT&T (43%). Verizon TravelPass reaches $168 over the same period.
Each day AT&T connects you to FLOW in Antigua and Barbuda costs $12. Buy a 10GB eSIM plan at $68.50 and that same daily access drops to $4.89/day. Over 14 days, the difference is $51.50.
eSIM pricing for Antigua and Barbuda: 1GB at $10.13 ($10.13/GB), 3GB at $23.94 ($7.98/GB), 5GB at $37.55 ($7.51/GB), 10GB at $68.52 ($6.85/GB), 20GB at $157.68 ($7.88/GB). AT&T's 14-day roaming bill is $120 regardless of data consumed. Unlimited eSIM data costs $190.06 for the same period, $-70.06 less.
The unlimited ladder for Antigua and Barbuda reads 1 day at $16.97, 3 days at $48.36, 7 days at $104.54, 14 days at $190.06, 30 days at $346.19. Unlimited here means 2GB a day at full speed before a fair-use policy applies. At 30 days the rate is $11.54 a day. Catalogue prices read 29 Oct 2026.
Trip cost breakdown
Antigua and Barbuda data cost scenarios: short trip to long stay
AT&T bills $12/day for roaming in Antigua and Barbuda — that is $0.50/hour around the clock, whether your phone is in your pocket or active. A 2GB eSIM on a local network costs $23.94 for 3 days — $0.33/hour at continuous use. Difference for a 3-day trip: $12.06.
Over 14 days, AT&T's per-hour rate stays at $0.36. A 20GB eSIM on a local network for 15GB averages $0.47/hour over the same 14 days. AT&T total: $120. eSIM total: $157.68. Difference: $-37.68.
A 30-day stay at $0.17/hour on AT&T reaches $120. A 50GB eSIM on a local network covering 50GB for video calls and streaming costs $363.18 — $0.50/hour. Total difference over 30 days: $-243.18 (-203%). Rates checked June 2026.
Airport options
Antigua and Barbuda airport connectivity
Buying a SIM card at the airport in Antigua and Barbuda means waiting in line after a long flight, handing over your passport, and paying a tourist-markup price. A 1GB eSIM at $10.13 installs in 2 minutes from the provider's app. It activates on a local network the moment you turn off airplane mode.
Data planning
Antigua and Barbuda data plan sizing for 7-day visits
A 20GB eSIM plan gives you 20GB of data. At 1.5 GB per day in Antigua and Barbuda, that covers 7 days with 9GB left over. If you plan to stream video daily, move up one tier.
The 20GB plan at $157.68 supports roughly 80 hours of WhatsApp video calls. For daily check-ins home, that is more than enough for 7 days. AT&T would charge $84 for the same local connection. For heavy data users, a 1-day unlimited plan costs $16.97, not under AT&T's $12/day pass.
Connectivity
Antigua and Barbuda data strategy: WiFi vs eSIM
WiFi infrastructure in Antigua and Barbuda is concentrated in luxury hotels and a few urban areas. Outside those zones, an eSIM on a local network is often the only reliable data source at $6.85/GB.
Plan your data
Your Antigua and Barbuda data budget explained
AT&T's International Day Pass at $12/day includes voice calls you may never use. If you rely on WhatsApp or FaceTime for calls, you are paying for bundled voice access in Antigua and Barbuda that a data-only eSIM does not charge for. A 20GB data-only eSIM on a local network costs $157.68 for 10 days — -31% less than AT&T.
Antigua and Barbuda has one mobile operator: FLOW. US carriers pay FLOW for roaming access and pass that cost to you at $12/day. An eSIM connects to FLOW directly at $6.85/GB — no carrier markup.
Local prices in Antigua and Barbuda are in XCD (EC$), but eSIM plans are priced in USD, eliminating exchange rate uncertainty on your data costs.
Quick reference
Antigua and Barbuda Travel Essentials
911/999
911, 999 are the emergency numbers in Antigua and Barbuda. 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 A/B
US plugs (Type A flat two-prong and Type B three-prong) fit Antigua and Barbuda's outlets directly. No adapter is needed for phones, laptops, or standard US electronics. Voltage is 120V — compatible with dual-voltage US chargers.
AST (UTC-4)
XCD (EC$)
Cash in XCD is preferred across most of Antigua and Barbuda outside major hotels and tourist centers. Card terminals are not common in local markets or small restaurants. Withdraw enough cash at a reliable ATM before leaving the city — rural areas may not have ATM access.
Good to know
One operator, FLOW, runs all mobile coverage in Antigua and Barbuda. Carrier roaming and eSIM plans use the same infrastructure — comparing costs is the only meaningful variable.
Quick tip
Antigua and Barbuda uses XCD (EC$). eSIM plans charge in USD at the time of purchase — you lock in the cost before travel and avoid in-country exchange rate moves.
Step by step
Antigua and Barbuda eSIM setup from purchase to active connection
- Verify eSIM compatibility — any iPhone from 2018 or Samsung Galaxy S20 and later works on Antigua and Barbuda's LTE network via FLOW
- Go to HelloRoam, select the Antigua and Barbuda 1GB plan at $10.13, and complete checkout — no physical SIM needed. Not sure which provider to pick? See our provider comparison.
- On iPhone: go to Settings > Cellular > Add eSIM > Use QR Code and scan the HelloRoam code before you leave home so it is ready to activate on arrival
- On Samsung Galaxy: go to Settings > Connections > Mobile Networks, select your home carrier SIM, and turn off Data Roaming. The step-by-step roaming guide has Android screenshots.
- On Google Pixel when you land in Antigua and Barbuda: go to Settings > Network > SIMs and set the HelloRoam eSIM as the preferred data SIM — LTE on FLOW confirms in seconds
- First-timer tip: set up WiFi Calling before your trip, not at the airport — some carriers require a verification step that needs a home network connection to complete
Data tips
Antigua and Barbuda trip data discipline: what to disable
Download offline maps before your trip — Google Maps and Maps.me both support offline areas. This cuts navigation data usage from 50 MB/hour to near zero. WhatsApp messages use minimal data. Voice calls over WhatsApp use about 30 MB/hour. Video calls consume 250 MB/hour. Streaming video is the biggest drain at roughly 1 GB/hour.
Regional context
Caribbean roaming rates and how Antigua and Barbuda fits in
A few things to know before turning off carrier roaming in Antigua and Barbuda:
Good coverage on both islands
Nearby
Related destinations
6 destinations near Antigua and Barbuda 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 Aruba at $3.99 a gigabyte.
Forgot your eSIM?
Last-minute eSIM options for Antigua and Barbuda arrivals
You landed in Antigua and Barbuda without an eSIM. Here is what that costs and what you can still do.
All 5 providers — HelloRoam, Holafly, Nomad, Airalo, and Saily — allow post-arrival purchase and installation over WiFi. You do not need a local SIM to buy an eSIM. Most international airports in Antigua and Barbuda have free WiFi in arrivals. Connect there, open a provider's app, and install a 1GB plan ($10.13 in this site's catalog) before you leave the terminal. If airport WiFi is unavailable, hotel lobby WiFi works as a fallback — most front desks in Antigua and Barbuda give you the password at check-in. Last resort: turn on carrier data long enough to download the eSIM provider app (~5 MB, roughly $10 on AT&T pay-per-use), then switch to the installed eSIM immediately. That charge lands once, unlike AT&T's $12/day pass, which bills again every day of the trip.
Savings math
How much you save in Antigua and Barbuda
Solo traveler
Break-even point for a solo Antigua and Barbuda trip: day one. AT&T charges $12 for the first 24 hours. A 20GB eSIM at $157.68 is already cheaper than two AT&T days. By day 10, the eSIM has saved $0 total. There is no trip length at which AT&T roaming costs less than a travel eSIM for Antigua and Barbuda.
Family trip
Verizon TravelPass charges per line, not per account. A family of four pays $48/day ($12 x 4 lines). Over 10 days in Antigua and Barbuda: $480. Four eSIMs at $157.68 each: $630.72. Per-person savings: $-37.68. All eight data connections (4 carrier, 4 eSIM) route through local 4G LTE towers.
AT&T roaming rate analysis
Checking voicemail on AT&T in Antigua and Barbuda is treated as an inbound international call. That call starts a $12 Day Pass fee covering the next 24 hours, even if you did not plan to use data. A single voicemail check at 5 AM on your last morning adds $12 to your bill. Weekly AT&T cost: $84. Monthly: $120. A 20GB eSIM: $157.68 for 10 days on a local network. The eSIM does not charge for background triggers.
All-carrier summary
AT&T: AT&T International Day Pass costs -24% more than an eSIM for Antigua and Barbuda.
Verizon: Verizon TravelPass costs less than this eSIM plan for Antigua and Barbuda.
T-Mobile: T-Mobile's International Passes cost less than this eSIM plan for Antigua and Barbuda.
Against AT&T: $0 saved (0%). Against Verizon: $0 saved. Against T-Mobile's International Pass at $10/day: $0 saved. Against T-Mobile free tier: $0 carrier cost, but the throttle renders maps, ride-hailing, and video calls unusable. A 20GB eSIM at $157.68 delivers full 4G LTE on a local network for less than any paid roaming option.
Quick answers
Common questions about Antigua and Barbuda data costs
Is eSIM cheaper than roaming in Antigua and Barbuda?
Carrier roaming in Antigua and Barbuda costs $120 on AT&T ($12/day for 10 days). An eSIM plan on a local network costs $157.68 for 20GB. Both connect to the same 4G LTE cell towers. The eSIM is cheaper by $0, a 0% reduction. Rates checked June 2026.
How much does roaming cost in Antigua and Barbuda?
Without an international plan, AT&T charges $2,099 per gigabyte in Antigua and Barbuda. The International Day Pass reduces this to $12/day ($120 for 10 days). Verizon TravelPass charges $12/day. An eSIM on a local network: $157.68. Rates checked June 2026.
Does T-Mobile work in Antigua and Barbuda?
T-Mobile works in Antigua and Barbuda on its included allowance: 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. For 10 days of high-speed data, the cheapest pass mix is $50 (10-day pass). A FLOW eSIM delivers full 4G LTE speed for $157.68. Rates checked June 2026.
AT&T fine print for Antigua and Barbuda
$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.
Antigua and Barbuda FAQ
Antigua and Barbuda eSIM & roaming questions
Antigua and Barbuda carrier roaming costs $12 a day on AT&T and on Verizon
AT&T bills $12 a day for the first line and $6 for each extra line, so a family of four in Antigua and Barbuda pays $30 a day, or $210 across a week. Verizon charges the full $12 on each line. T-Mobile's Experience plans include 5GB or 15GB of high-speed data abroad per line, then at a reduced speed. Travel eSIM plans are per device and do not share, so four phones means four plans from $10.13 for 1GB each, or one plan tethered to the rest. Holafly caps hotspot use at 1 GB per day on most plans, so a family leaning on tethering should buy fixed data instead. Rates checked June 2026.
T-Mobile's included data in Antigua and Barbuda runs at high speed until the allowance ends
For a short trip on Experience Beyond, often yes; past the allowance, no. 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. A 7-day travel eSIM at 1.5 GB/day costs $71.93 at $6.85/GB in Antigua and Barbuda, against $50 for a week of T-Mobile passes. HelloRoam's 7-day unlimited plan covers the same week for a median $21.50 with no gigabyte counting, against $27.50 on Holafly. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
Antigua and Barbuda roaming bills by the day, not by the gigabyte
At 3 days in Antigua and Barbuda: AT&T costs $36, eSIM costs 1GB for $10.13. At 7 days: AT&T $84, eSIM same 1GB for $10.13. At 14 days: AT&T $120, eSIM same fixed rate. The eSIM billing model is flat: the longer the trip, the wider the gap. T-Mobile's included data costs nothing extra until its 5GB or 15GB allowance runs out, then runs at up to 256Kbps.
Carrier roaming beats an eSIM in Antigua and Barbuda on one-day stops and voice-only trips
Three cases, and they are real. First, T-Mobile does not charge for data in Mexico and Canada up to its plan's high-speed allowance, and nothing priced here beats free. Second, if you need your own number live for calls and texts without WiFi, a day pass does that and a data-only travel eSIM does not. Third, if you use almost no data, one AT&T day at $12 can beat buying a whole plan for a single overnight stop. Outside those three the arithmetic favors the eSIM in Antigua and Barbuda: $84 for a week on AT&T against $71.93 at $6.85/GB on FLOW. Rates checked June 2026.
Coverage lists decide which provider suits a Antigua and Barbuda trip with extra stops
HelloRoam is the top pick when every stop is on its list: it sells Antigua and Barbuda among its 185 destinations and holds the lowest median 5 GB rate here, $2.01/GB. For a route that adds stops, check each list before the price: Airalo reaches 200+ destinations, Nomad 200 and Holafly 200+. This site states no Saily count. That breadth is worth paying for only when the itinerary is still moving. A regional plan covering several countries in one bucket beats one plan per stop. AT&T sidesteps the question by charging $12 per 24 hours in every country alike, which is simple and expensive: three countries over nine days still bills $108. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
US carrier roaming in Antigua and Barbuda runs $10 to $12 a day
AT&T charges $12/day in Antigua and Barbuda on International Day Pass. Verizon charges $12/day on TravelPass. T-Mobile includes Antigua and Barbuda at a reduced speed, or $10/day on the International Pass. A 7-day trip: AT&T $84 at $12/day, Verizon $84, T-Mobile $50. A travel eSIM on FLOW at $6.85/GB costs roughly $71.93 for the same week. Rates checked June 2026.
A cruise leaving Antigua and Barbuda prices data differently from land travel
On land in Antigua and Barbuda, both options connect through local 4G LTE towers with no meaningful difference. On a cruise ship, neither carrier roaming nor a travel eSIM applies — ships use maritime satellite networks billed separately by the cruise line at $15-30/day. Buy the cruise WiFi package for onboard connectivity. Use the eSIM or carrier roaming only when the ship is docked and you are on shore.
A Caribbean regional plan against single-country Antigua and Barbuda coverage
Your itinerary settles it. For Antigua and Barbuda alone, a country-specific eSIM at $6.85/GB is the right buy. For several islands, a regional Caribbean plan holding all the stops in one data bucket usually costs less than separate eSIMs. Check the coverage list first, because the five providers draw the region differently: Airalo and Holafly each cover 200+ destinations to HelloRoam's 185, so HelloRoam, with the lowest median 5 GB rate at $2.01/GB, lists fewer destinations than those two. AT&T and Verizon charge $12/day per country, so four islands at two days each bills $96. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
T-Mobile's free tier in Antigua and Barbuda sits below what maps and video need
T-Mobile's free international tier in Antigua and Barbuda is capped far below a usable speed. That speed supports plain text messages and basic email without attachments. It does not support Google Maps navigation, WhatsApp photo sending, or ride-hailing apps. T-Mobile's International Pass runs $10/day, under AT&T and Verizon at $12/day. A travel eSIM on FLOW at $6.85/GB delivers full 4G LTE with no speed cap.
A week of Antigua and Barbuda 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 Antigua and Barbuda starts at $6.85/GB on a local 4G LTE network — better per-GB value than all three carriers.
Fact check
3 roaming myths that cost travelers money in Antigua and Barbuda
T-Mobile includes free international data
T-Mobile's Experience plans include 5GB or 15GB of high-speed data abroad, then up to 256Kbps, too slow to load a map tile in Antigua and Barbuda past the allowance. Its 1 Day International Pass costs $10. Exception: T-Mobile does not charge for calls, texts or data in Mexico and Canada; depending on the plan, up to 30GB is at high speed, then up to 256Kbps. Antigua and Barbuda is not on that list. Rates checked June 2026.
Carrier roaming is more reliable than an eSIM
Reliability is determined by the local carrier's network, not the billing layer above it. AT&T roaming in Antigua and Barbuda routes through a local network. A travel eSIM also routes through a local network. Both connections depend on local network coverage in any given area. AT&T charges $12/day for a connection with zero reliability advantage over the $10.13 eSIM.
Pay-per-use international data rates are reasonable
AT&T's pay-per-use international data rate is $2.05/MB without an active plan. At that rate, 1 GB costs $2,099. A single Google Maps navigation session in Antigua and Barbuda loads 50–100 MB — that is $102–$205 at pay-per-use. A 1GB eSIM on a local network costs $10.13 for the same data. Always activate a day pass or eSIM before your flight. Rates checked June 2026.
Our recommendation
Antigua and Barbuda mobile data: carrier charges vs eSIM price
Our pick for Antigua and Barbuda: HelloRoam. HelloRoam covers Antigua and Barbuda on a local network and scores 9.9/10 on our rubric, the highest of the 5 providers we price. A 1GB plan costs $10.13. Unactivated plans are refundable for 180 days, and its support replies in your own language. 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, Antigua and Barbuda
4 guides carry the parts of a Antigua and Barbuda 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.
Antigua and Barbuda eSIM activates in under 5 minutes. No roaming fees.
A travel eSIM connects to Antigua and Barbuda networks from $157.68. No daily roaming fees.
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