United States · roaming cost calculator
United States Data Costs: Carrier Roaming vs Travel eSIM
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eSIM plans for United States: price and coverage data
Airalo's United States plans carry a 14-day refund policy for unused eSIMs. Coverage runs on T-Mobile's 5G network from $1.06/GB.
Get eSIMHolafly's United States plan on T-Mobile includes unlimited data but caps mobile hotspot at 1GB/day. If you plan to tether a laptop, factor that limit into your decision.
Get eSIMSaily covers 150+ countries. If United States is part of a multi-destination trip, check whether a Saily regional plan covers your other stops — buying one plan is less friction than managing several.
Get eSIMIn United States, Nomad uses T-Mobile at $1.06/GB with a two-minute checkout. No app required — QR code delivery works via email, scannable from any camera app.
Get eSIMCompare providers: Airalo vs Holafly · Airalo vs Saily · Airalo vs Nomad · Holafly vs Saily · Holafly vs Nomad · Saily vs Nomad
The full picture
AT&T, Verizon, and T-Mobile rates for United States
Every major carrier's published United States rate, side by side, with the eSIM winner highlighted.
| Carrier | Plan type | Daily | 7-day | Speed | Data limit |
|---|---|---|---|---|---|
| AT&T | International Day Pass | $10.00source | $70.00 | LTE | Plan data |
| Verizon | TravelPass | $10.00source | $70.00 | LTE | Plan data |
| T-Mobile | Magenta (high-speed add-on) | Free*source | $0–105 | 256kbps* | Throttled |
| Xfinity Mobile | International Pass | $10.00source | $70.00 | LTE | 200 MB/day |
| eSIM · Airalo | 1 GB · 7 days | — | $1.06 | LTE / 5G | 1 GB |
*T-Mobile includes data at 256kbps free; high-speed access is a $5–15/day add-on, shown here as a 7-day range.
* 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
United States data charges on AT&T pay-per-use: real dollar amounts
The worst-case AT&T pay-per-use scenario in United States: 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: $2099. Source: AT&T international rate card, June 2026.
Personalize your savings
How much will you save with an eSIM in United States?
Adjust your trip length, carrier, and data habits to see your exact savings.
Network coverage
United States roaming network partnerships explained
AT&T sets the wholesale roaming rate for United States. AT&T marks that rate up to $10/day for its customers. Airalo sell the same AT&T access at $1.06/GB. Same signal, same speed, same carrier towers. Different price tag. United States has 5G through AT&T. There is no 5G-premium tier in carrier roaming or eSIM plans. AT&T's $10/day covers 5G. An eSIM at $1.06/GB covers 5G. You do not pay more for faster service under either model. United States has widespread 5G coverage. T-Mobile leads with widest 5G; all three carriers have extensive urban 5G; rural gaps remain Average download speeds reach 171 Mbps on AT&T's network — identical whether you connect through a carrier roaming pass or a travel eSIM. T-Mobile provides the widest 5G footprint; eSIM providers using T-Mobile deliver the best coverage for tourists.
T-Mobile 5G covered most interstate highways. Significant dead zones in national parks and rural Montana/Wyoming/Nevada.
Pricing breakdown
Per-day data costs in United States: roaming and eSIM
Carrier roaming costs for 14 days in United States, ranked: T-Mobile high-speed add-on $210, Verizon TravelPass $140, AT&T International Day Pass $140, eSIM 10GB on T-Mobile $10.60. The eSIM option costs 92% less than AT&T.
Per-day data costs in United States: AT&T $10, Verizon $10, T-Mobile $15, eSIM $0.76. The eSIM figure is derived from a $10.60 10GB plan spread across 14 days. Carrier rates are fixed regardless of how much data you use each day. US prepaid SIM at $30-50 for 10GB is expensive globally — eSIM providers offer similar plans at $15-25 for visitors.
eSIM plan tiers for United States: 1GB at $2.87 ($2.87/GB), 3GB at $6.87 ($2.29/GB), 5GB at $10.01 ($2/GB), 10GB at $16.41 ($1.64/GB), 20GB at $34.46 ($1.72/GB). Unlimited daily data starts at $3.49/day ($48.86 for 14 days). Even the unlimited eSIM tier costs less than AT&T's $140 roaming bill. US eSIM at $1.06/GB is mid-range globally but represents savings vs local prepaid which starts around $2.50/GB. Travelers in United States average 2.0GB of mobile data per day, so a 14-day trip needs roughly 28GB.
Trip cost breakdown
Carrier roaming vs eSIM cost in United States by trip length
AT&T bills $10/day for roaming in United States — that is $0.42/hour around the clock, whether your phone is in your pocket or active. A 2GB eSIM on T-Mobile costs $6.87 for 3 days — $0.10/hour at continuous use. Difference for a 3-day trip: $23.13.
Over 14 days, AT&T's per-hour rate stays at $0.42. A 20GB eSIM on T-Mobile for 15GB averages $0.10/hour over the same 14 days. AT&T total: $140. eSIM total: $34.46. Difference: $105.54.
A 30-day stay at $0.42/hour on AT&T reaches $300. A 50GB eSIM on T-Mobile covering 50GB for video calls and streaming costs $66.26 — $0.09/hour. Total difference over 30 days: $233.74 (78%). Rates checked June 2026.
Airport options
United States arrival data: airport SIM vs eSIM
The posted price at JFK (NYC) / LAX (LA) / ORD (Chicago) / MIA (Miami)'s T-Mobile and AT&T and Mint Mobile and Lycamobile counter is $30-50 for 10-30GB / 30 days. That figure may not include applicable taxes or activation fees added at the counter. A 1GB eSIM at $2.87 is an all-in price paid online — no surprises at checkout. Off-airport shops in United States sell SIMs for $25-40 for 10-30GB / 30 days, the lower-cost option if you have extra time.
Local alternative
Local SIM vs eSIM in United States
A local SIM in United States costs $25-40 for 10-30GB / 30 days at T-Mobile and AT&T and Mint Mobile and Lycamobile. A travel eSIM starts at $2.87 for comparison. The trade-off: you wait 10-20 min; available at electronics stores in terminals at the airport counter, and lose your home number while the local SIM is active.
Data planning
How to plan your data for 10 days in United States
Uploading photos to Google Photos or iCloud uses roughly 10 MB per photo in full resolution. Fifty photos per day adds 500 MB before you factor in maps or calls. At 2.0GB average daily usage in United States, a 10-day trip needs 20GB minimum.
The 20GB plan at $34.46 ($1.72/GB) is the best fit for this usage. Compare that to AT&T's $100 for the same 10 days on the same T-Mobile towers. For heavy data users, unlimited daily plans start at $3.49/day — still cheaper than any carrier roaming pass.
Connectivity
How reliable is WiFi for travelers in United States
WiFi in United States: Free WiFi at Starbucks, McDonald's, libraries, and most hotels; widespread but not universal Coverage is strong in urban areas. Rural spots are less consistent. An eSIM keeps you connected when WiFi drops — directions, translations, and payment apps all need steady data.
Plan your data
United States data demand by trip length and usage
Airport SIM counters in United States charge $30-50 for 10-30GB / 30 days — and that requires waiting in line after a long flight. AT&T roaming adds $10/day on top if you skip the counter. A 20GB eSIM at $34.46 installs before you board, no line required.
United States has two mobile operators: AT&T and Verizon. When AT&T or Verizon customers roam here, their calls and data pass through these exact networks. A travel eSIM reaches AT&T or Verizon directly at $1.06/GB — the service is identical; the roaming markup is not.
Airport SIM counters at JFK (NYC) / LAX (LA) / ORD (Chicago) / MIA (Miami) charge $30-50 for 10-30GB / 30 days after a 10-20 min; available at electronics stores in terminals wait — still more than a 20GB eSIM at $34.46. Local prepaid SIMs in United States run $25-40 for 10-30GB / 30 days, requiring an in-person stop and sometimes a passport copy. An eSIM at $34.46 skips that entirely. Prices stable; US mobile data more expensive than most countries
Quick reference
United States Travel Essentials
911
911 reaches police, fire, and ambulance in United States. Save the number before you arrive — do not rely on memory in an emergency. 911 works from any phone, including a travel eSIM with no local number.
Type A/B
US plugs (Type A flat two-prong and Type B three-prong) fit United States's outlets directly. No adapter is needed for phones, laptops, or standard US electronics. Voltage is 120V — compatible with dual-voltage US chargers.
EST/CST/MST/PST (UTC-5 to -8)
USD ($)
Tap-to-pay (Apple Pay, Google Pay) is accepted at most stores and restaurants in United States. Visa and Mastercard work at virtually all merchants. Carry a small amount of local USD for markets, taxis, and small vendors that do not have card readers.
Quick tip
A local prepaid SIM in United States costs around $25-40 for 10-30GB / 30 days at convenience stores and carrier shops. That beats most travel eSIM prices — if you have time to buy and register one on arrival.
Good to know
United States's emergency number is 911, not 112. Both carrier roaming SIMs and eSIMs can dial emergency numbers without an active data plan.
Step by step
How to cut roaming charges on a United States trip
- On Samsung Galaxy S21 or newer: go to Settings > Connections > SIM manager to verify eSIM support — Pixel 3a and later also qualifies — T-Mobile covers 5G in United States
- First-time buyer: Airalo offers United States data at $2.87 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 JFK (NYC) / LAX (LA) / ORD (Chicago) / MIA (Miami) 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 JFK (NYC) / LAX (LA) / ORD (Chicago) / MIA (Miami) — it connects to T-Mobile automatically
- Leave your home SIM enabled for incoming calls: WiFi Calling routes them over the eSIM data connection at no extra cost
Data tips
App settings that cut data use in United States
Travel booking apps — flights, hotels, and train tickets — typically use 5-20 MB per search session. If you book in-country transport while in United States, plan for one session of 15-30 MB. Download booking confirmations to your phone over WiFi so you can access them without cellular data.
Regional context
United States carrier coverage and North America roaming agreements
A few things to know before turning off carrier roaming in United States:
US spans 4 mainland time zones plus Alaska and Hawaii — check local time zone for each destination
T-Mobile has the widest 5G coverage; AT&T strongest in rural areas; Verizon best in cities
No SIM registration required — buy at any Walmart, Target, or Best Buy without ID
US uses 110V power — same as Japan; most USB chargers work globally
National Parks often have zero mobile coverage — download offline maps for Yellowstone, Grand Canyon, etc.
Free WiFi at Starbucks, McDonald's, libraries, and most hotels; widespread but not universal Roaming passes charge $10/day to fill WiFi gaps. An eSIM covers the same connectivity at $1.06/GB.
iPhone 14+ US models are eSIM-only (no SIM tray) — eSIM is the only option for these devices.
Summer and holiday season (Thanksgiving through New Year) are peak periods
Forgot your eSIM?
You forgot to buy an eSIM for United States — here is what to do
Post-arrival eSIM installation in United States works from any WiFi connection. No cellular data is required to purchase or install. JFK (NYC) / LAX (LA) / ORD (Chicago) / MIA (Miami) provides free WiFi to arriving passengers in the terminal. Open your preferred provider — Airalo, Holafly, Saily, or Nomad — and complete the purchase. All four deliver the eSIM QR code by email and in-app simultaneously. If you miss the airport window, check into your hotel and use the lobby WiFi. Front desks in United States provide the WiFi password at check-in. A 1GB plan at $2.87 gives you 1GB of T-Mobile data from the moment you scan the QR code.
United States FAQ
United States eSIM & roaming questions
How much does carrier roaming cost in United States?
AT&T charges $10/day on International Day Pass for United States. Verizon charges $10/day on TravelPass. T-Mobile includes United States for free at 256 Kbps — barely fast enough for text messages, not usable for maps or apps. Without any plan, AT&T's pay-per-use rate is $2.05/MB, meaning a single Google Maps session costs over $10. A travel eSIM on T-Mobile starts at $2.87 for 1GB — the same 5G network at a fraction of the daily roaming cost.
Is T-Mobile's free international data fast enough in United States?
No. 256 Kbps sounds like it covers light use, but even a single email with an attachment or a 30-second map route takes over a minute to load at that speed. T-Mobile's free tier in United States is functional only for plain text messages. The paid upgrade runs $15/day — identical to AT&T's roaming fee. A travel eSIM on T-Mobile at $1.06/GB costs less per GB than any day-pass option and has no speed restriction.
How is my roaming bill calculated in United States?
A traveler lands in United States, checks one notification, and AT&T bills $10 for the entire calendar day. That is how per-day billing works — any cellular connection, even a background sync at midnight, triggers the full daily charge. Without a day pass, AT&T charges $2.05/MB. A 15-second Instagram scroll could cost $30. An eSIM at 1GB for $2.87 is a fixed cost: no per-day triggers, no per-MB metering, no bill surprises.
Is an eSIM worth it for United States?
Yes, if you use more than a few megabytes per day. AT&T charges $10/day for roaming in United States, which totals $70 for a week. A travel eSIM on T-Mobile starts at $1.06/GB for the same 5G speeds. The breakeven point is day one: even a single day of eSIM data costs less than one day of carrier roaming. The eSIM connects to the same local towers your carrier uses, so speed and coverage are identical.
Does my phone need to be unlocked to use a travel eSIM in United States?
In most cases, no. eSIM profiles install alongside your existing carrier SIM without requiring an unlock. iPhones purchased in the US after 2020 support dual SIM and eSIM regardless of carrier lock status. Android phones vary — most support eSIM without unlocking, but some budget models require unlocking before a second carrier profile can be installed. US carriers are required to unlock devices after contract fulfillment: AT&T unlocks after 60 days, Verizon after 60 days, T-Mobile after 40 days. If your phone is under contract or recently purchased, check your carrier's unlock policy before your trip to United States. Rates checked June 2026.
How much does AT&T roaming cost in United States?
AT&T International Day Pass charges $10/day in United States. Without a plan, pay-per-use rates reach $2.05/MB. A 7-day trip with a day pass costs $70. A travel eSIM on T-Mobile covers the same week at roughly $11.13 at 1.5 GB/day average usage — a saving of over 80%.
Is Verizon TravelPass worth it for United States?
No. Verizon TravelPass costs $10/day in United States — $70 for a week. A travel eSIM starts at $1.06/GB on T-Mobile's 5G network. The eSIM delivers the same speed on the same carrier infrastructure at 80-95% lower total cost.
What is T-Mobile's free international data speed in United States?
T-Mobile caps free international data at 256 Kbps in United States. That is too slow for GPS navigation, photo messaging, video calls, or ride-hailing apps. Basic text-only WhatsApp works. T-Mobile's paid high-speed add-on costs $15/day — the same rate as AT&T and Verizon. A travel eSIM on T-Mobile at $1.06/GB delivers full 5G without per-day billing.
How do I avoid a surprise roaming bill when visiting United States?
Turn off data roaming on your carrier SIM before landing in United States. AT&T's per-day charge fires from any background cellular contact — even a push notification at midnight — at $10/day. Without a plan, the rate is $2.05/MB. Install a travel eSIM via QR code before departure and set it as the active data SIM. Your carrier SIM stays active for calls and texts with WiFi Calling; the eSIM handles data at $1.06/GB.
How much does carrier roaming cost for a week in United States?
AT&T: $70/week (International Day Pass at $10/day). Verizon: $70/week (TravelPass). T-Mobile: free at 256 Kbps or $105/week for usable speed. The cheapest eSIM for United States starts at $1.06/GB on T-Mobile's 5G network — better per-GB value than all three carriers.
Fact check
United States travel data: correcting the record
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 United States.
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 United States at $2.87 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 $10/day. A travel eSIM on T-Mobile covers United States for $2.87 total. Rates checked June 2026.
Our recommendation
Which eSIM to get for United States
Holafly's unlimited plan runs on T-Mobile in United States at $3.49/day with no data cap. For trips longer than 5 days, unlimited data removes the guesswork of picking the right GB tier. Streaming, video calls, and tethering all work without watching a usage meter. That makes Holafly our pick for United States. Airalo is the pick if you use less than 2 GB/day — a 1GB plan at $2.87 costs less for light users.
United States eSIM activates in under 5 minutes. No roaming fees.
Carrier day passes add up: 7 days x $10/day = $70. One eSIM plan covers the same trip for $1.06.
Get a United States eSIM