United States eSIM
Travel the USA with fast, reliable data. On AT&T and Verizon.
6 plans
3 GB
Full speedRoaming on AT&T and Verizon
฿89≈ $2.94
Buy at Vacay →5 GB
Full speedRoaming on AT&T and Verizon
฿119≈ $3.93
Buy at Vacay →10 GB
Full speedRoaming on AT&T and Verizon
฿209≈ $6.90
Buy at Vacay →20 GB
Full speedRoaming on AT&T and Verizon
฿399≈ $13.17
Buy at Vacay →30 GB
Full speedRoaming on AT&T and Verizon
฿539≈ $17.79
Buy at Vacay →50 GB
Full speedRoaming on AT&T and Verizon
฿879≈ $29.01
Buy at Vacay →Prices from Vacay as of 8 Nov 2026. Prices may change, so check the latest price on the provider's page before you pay. Buy links are affiliate links, and you pay the same price.
US dollar prices use Vacay's rate (about ฿30.30 per $1, checked 12 Nov 2026), and buy buttons open Vacay in US dollars.
United States eSIM prices by trip length
Vacay prices as of 8 Nov 2026. Pick your days and plan above to buy.
| Days | From | Recommended | Unlimited |
|---|---|---|---|
| 3 days | 3 GB฿79≈ $2.61 | 5 GB฿109≈ $3.60 | ฿239≈ $7.8910Mbps |
| 5 days | 3 GB฿89≈ $2.94 | 10 GB฿209≈ $6.90 | ฿379≈ $12.5110Mbps |
| 7 days | 3 GB฿99≈ $3.27 | 20 GB฿409≈ $13.50 | ฿519≈ $17.1310Mbps |
| 10 days | 3 GB฿109≈ $3.60 | 20 GB฿449≈ $14.82 | ฿699≈ $23.07Local SIM · AT&T |
| 15 days | 3 GB฿129≈ $4.26 | 30 GB฿669≈ $22.08 | ฿1,019≈ $33.63Local SIM · AT&T |
| 30 days | 3 GB฿149≈ $4.92 | 50 GB฿1,129≈ $37.26 | ฿1,999≈ $65.97Local SIM · AT&T |
United States eSIM with calls and a number
Best USA plans are data only. If you need a US number for calls, pick AT&T from ฿699 for 10 days: unlimited data and calls in the USA. Days start as soon as you buy, and it can't share a hotspot.
Read: USA eSIM with AT&T unlimited →New Vacay customers: 10% off
Copy the code and enter it at checkout.
Free Easy travel insurance
Free Easy cover up to THB 50,000 · select Easy before departureCompare plans →Not sure how much data you need?
Estimate data for your United States tripEstimate my data →Already in the USA and need data now
Quick connection steps
- Connect to Wi-FiUse hotel, airport or café Wi-Fi.
- Buy and get your QRPay for a plan, then open the QR from your email.
- Add your eSIMScreenshot the email QR, then add the eSIM from your phone gallery.
- Turn on data roamingSelect the eSIM for mobile data and enable roaming.
United States eSIM tips
- Best USA can be installed from the QR before you go. It starts counting when you arrive, and must be activated within 60 days of purchase.
- Pick 10 GB for 5 days and 20 GB for 7–10 days, allowing about 1.5 GB a day. If you don't want to count data, pick Unlimited.
- Best USA roams on AT&T and Verizon and allows hotspot sharing.
- AT&T gives unlimited calls and SMS in the US, unlimited data in Mexico and 25 GB in Canada, but no hotspot. It starts counting as soon as you buy, and plans start at 10 days.
Read before you go
- USA eSIM for tourists: AT&T with a US number, unlimited data or by the GB? Prices for 7 to 15 daysFlying from Thailand to the US? Compare USA eSIMs: an AT&T plan with a real US number and unlimited data, roaming plans on AT&T and Verizon by the GB or unlimited, daily plans, and a pack that adds Canada and Mexico. What each costs for 7, 10 and 15 days, and the catches.
- Get Thai bank OTP codes while traveling: keep your AIS, True or dtac number on, use a travel eSIM for data
eSIMs for other destinations
See all destinations
United States eSIM questions
How much does a USA eSIM cost?
Best USA 10GB costs ฿229 for 7 days, ฿249 for 10 and ฿279 for 15. Unlimited 10 Mbps is ฿519 for 7 days. AT&T with a phone number is ฿699 for 10 days. New Vacay customers get 10% off with THAF-UCQY.
Which USA network is best: AT&T, T-Mobile or Verizon?
Each plan already states its networks. Best USA roams on AT&T and Verizon, major US carriers covering cities and road-trip routes. Best Canada (+USA Mexico) roams on Verizon, AT&T and T-Mobile. AT&T is a local AT&T SIM. If you only visit the USA, Best USA is cheaper.
What unlimited USA data plans are available, and are they throttled?
There are three kinds. Best USA Unlimited 10 Mbps (7 days ฿519) has a maximum speed of 10 Mbps, enough for maps, social media and video calls. Best USA Unlimited full speed (7 days ฿659) gives top speed for up to 5GB a day. AT&T (10 days ฿699) has unlimited data in the USA.
Can I share a hotspot with a USA eSIM?
AT&T does not allow hotspot sharing. To share data with travel companions, choose Best USA Unlimited.
Does a USA eSIM include a phone number?
AT&T includes a US number with unlimited local calls and SMS, from ฿699 for 10 days. It starts counting as soon as you buy and does not allow hotspot. Best USA plans are data only: call through LINE or WhatsApp.
Can a USA travel SIM receive Thai bank SMS OTPs?
A USA data eSIM cannot receive SMS sent to your Thai number. Keep your Thai SIM in the phone, enable roaming with your carrier before flying (free), and leave that line on to receive SMS and OTPs for free. Calls incur roaming charges. Use the eSIM for mobile data and turn off data roaming on the Thai SIM. AT&T's US number cannot receive Thai bank OTPs because the bank sends them to your Thai number.
How do I set up a USA eSIM?
Buy online and get your QR by email right away. Connect to Wi-Fi, then install through Settings > Cellular > Add eSIM on iPhone. On arrival, turn on the eSIM, select it for mobile data and enable its data roaming. Turn off data roaming on your Thai SIM.
Can I install before flying, and when do days start?
You can install in Thailand before flying without losing days. Best USA starts on arrival in the USA. AT&T starts when purchased, so buy on your travel day. If you forgot, connect to airport or hotel Wi-Fi and buy and install from your phone in the USA.
How much data do I need, or should I pick Unlimited?
For 7–10 days of maps, messaging and social media, 10GB is enough and can be topped up. For a road trip using Google Maps all day, pick 20GB, or AT&T if staying at least 10 days. For unlimited use or hotspot sharing, choose Best USA Unlimited. Daily plans cost slightly less but stop when the daily allowance is used up.
Can I also use it in Canada and Mexico?
Best USA only works in the USA. For cross-border travel choose Best Canada (+USA Mexico), covering all three countries (10GB for 10 days ฿549), or AT&T with unlimited data in Mexico and 25GB in Canada.