The best eSIM for international travel is the one that matches your route. For one country, buy a single-country plan: 10 GB for 30 days cost $7.00 in Japan and $9.80 in the USA on 9 October 2026. For several countries in one region, buy a regional plan, such as 10 GB across 34 European countries for $7.54. Buy a global plan only if your trip spans several regions, and buy unlimited only if you stream or hotspot every day. Brand matters less than plan type: Airalo, Holafly and smaller stores like ours all sell good plans, with different prices and speed rules.
Most “best eSIM” lists pick a winner. In practice the same traveller needs a different plan for a week in Tokyo, a month across Europe and a round-the-world trip. This guide matches common trips to the right kind of plan, with real prices, then compares the main brands and lists what to check before you pay.
- One country: single-country plans are the cheapest per gigabyte, typically $6 to $10 for 10 GB.
- One region: regional plans cost a little more and save switching at every border.
- Several regions: global plans cost about three times as much for the same data, so only pay for one when you need it.
- Heavy use: a week of unlimited data costs $11 to $23 in our catalogue and $21 to $27.50 from Airalo and Holafly, with different speed rules.
Pick a plan by your trip
Prices are the cheapest matching plans in our catalogue on 9 October 2026. Each plan page shows when the plan starts counting, its speed rules and where your data exits.
| Your trip | Plan to buy | Example price |
|---|---|---|
| One country, 1 to 2 weeks | Single-country plan, 5 to 10 GB | 10 GB for 30 days in Japan, $7.00 |
| Several countries in Europe | Regional plan | 10 GB, 34 countries, 30 days, $7.54 |
| Europe, Asia and the USA on one trip | Multi-region or global plan | 10 GB, 81 countries, 30 days, $20.00 |
| Heavy video or daily hotspot for a week | Capped unlimited or a large fixed plan | Unlimited week in 28 European countries, $11.00 |
| You need a number for calls and texts | Plan with minutes | UK, 10 GB and 200 minutes, $14.05 |
| A layover or one busy day | One-day pass | 1 GB for a day in Japan, $1.99 |
| Mainland China | A plan whose data exits outside China | See our China eSIM without a VPN list |
Start from your destination: the destinations page lists every country and region we cover, and each country page filters plans by data, days and unlimited.
Price comparisons by destination
Each of these guides puts our prices next to Airalo, Ubigi and Holafly for the same trips, with the networks each provider uses and the catch behind each option.
- Asia: Japan, South Korea, China, Hong Kong, Thailand, Vietnam, Singapore, Bali and Indonesia, the Philippines and India
- Europe: Europe, the UK and Turkey
- Americas: the USA, Mexico and Brazil
- Middle East and Africa: Dubai and the UAE, Saudi Arabia, Egypt and Morocco
- Oceania: Australia and New Zealand
Which brand: Airalo, Holafly or a smaller store
We checked Airalo’s and Holafly’s own pages on 9 October 2026 for Japan, Europe, the USA and Thailand. This is what each does best, including where we do not win.
| Best at | Watch out for | |
|---|---|---|
| Airalo | Choice: fixed and unlimited plans, top-ups, and plans with minutes and a number in some countries | Unlimited slows to 1 Mbps after 3 GB a day in Japan and 5 GB a day elsewhere; 10 GB for 30 days was $18.00 in Japan and $31.00 across Europe |
| Holafly | Simple unlimited data with no daily allowance, and up to 6 months to request a refund | Unlimited only, $27.50 a week; hotspot limited to 1 GB a day; no phone number |
| Code eSIM (us) | Lower fixed prices: 10 GB for 30 days was $7.00 in Japan, $7.54 across Europe, $9.80 in the USA and $7.00 in Thailand; each plan page states where your data exits | Far fewer independent reviews; some unlimited plans slow to 256 kbps after the daily allowance; some cheap plans route data through another country |
Our Airalo vs Holafly comparison has the full price table, and Holafly alternatives compares unlimited and fixed plans destination by destination.
What to check before you buy
- Your phone supports eSIM and is unlocked. A carrier-locked phone will not connect to another network. Check on our compatibility page.
- When the plan starts counting. Most plans start on first use at your destination, so you can install them at home. Some start at installation. See when an eSIM starts counting.
- The speed rule after the allowance. “Unlimited” plans slow to anything from 256 kbps to 2 Mbps after their daily or total allowance, which decides whether video still plays.
- Hotspot. Some plans limit sharing, such as Holafly’s 1 GB a day. Each plan page lists its hotspot terms.
- Where your data exits. Many travel eSIMs route data through another country, which can change what apps and websites see. Our explainer on whether a travel eSIM changes your IP address covers why.
- Data-only or a number. Most travel eSIMs have no phone number. Your home SIM can stay active for texts and verification codes.
How much data to buy
| How you use your phone | Per day | One week | Two weeks |
|---|---|---|---|
| Maps, messaging, some browsing | About 300 to 500 MB | 2 to 3.5 GB | 4 to 7 GB |
| Plus social media and photo uploads | About 1 GB | 7 GB | 14 GB |
| Plus daily video or video calls | 2 GB or more | 14 GB or more | 28 GB or more |
If your estimate fits a fixed plan with room to spare, buy that and skip unlimited. Our travel data guide breaks usage down by app, and our eSIM price study shows what each size typically costs.
When a travel eSIM is not the best option
- Your phone does not support eSIM or is locked. A physical local SIM or a pocket Wi-Fi device is the fallback.
- You are staying for months and need a local number. A local SIM from a network shop can work out cheaper over several months and gives you a number for local services.
- Your home plan already includes roaming. Some phone plans include data abroad. Check before buying anything.
Frequently asked questions
What is the best eSIM for international travel?
The best one matches your route. For one country, a single-country plan is cheapest: 10 GB for 30 days cost $7.00 in Japan on 9 October 2026. For one region, a regional plan; for several regions, a multi-region or global plan; for heavy daily video, unlimited.
Which eSIM works in the most countries?
Global plans cover the most. In our catalogue, the widest 10 GB plan covered 174 countries for $36.80, and a plan for Europe, Asia and the USA covered 81 countries for $20.00. Each plan page lists every country it covers, so check your route before buying.
Is Airalo or Holafly better for international travel?
Airalo is better if you want fixed data, top-ups or a number. Holafly is better if you want unlimited data with no daily allowance. A week of unlimited data cost $21.00 to $27.00 with Airalo and $27.50 with Holafly on 9 October 2026.
Can I use one eSIM in several countries?
Yes, if you buy a regional or global plan. A single-country plan only works in that country. Each plan page lists every country it covers.
Should I buy my eSIM before I travel?
Yes. Install it at home on Wi-Fi so you are online as soon as you land. Most plans start counting on first use at your destination, so installing early costs you nothing. Check the plan page, because a few start at installation.
Will I keep my phone number with a travel eSIM?
Yes. Your home SIM stays on the phone as a second line, so you still receive texts and verification codes. Turn off data roaming on that line so it does not run up charges while the eSIM carries your data.
Decide the route and the gigabytes first. The brand and the price usually follow from those two answers.
Last reviewed 9 October 2026. Our prices, coverage and speed rules come from our catalogue on that date; Airalo and Holafly prices and terms come from their own destination pages on the same date. Prices change often; product pages are authoritative. Airalo and Holafly are trademarks of their owners; this article is independent of them.