The Cheapest Way to Get Data Abroad

2026-05-29 · 4 min read · updated 2026-10-09

The cheapest way to get data abroad is the one that charges for what you actually use, no more. That depends on three things: how many days you're away, how much data you use, and how many countries you cross. Here's how each option charges, and a simple way to compare them for your trip.

Step one: know your number

Every comparison starts with how many gigabytes you need. Guessing high wastes money, and guessing low means topping up mid-trip.

Our plan recommender uses three daily rates: 0.2 GB a day for maps and messaging, 0.5 GB for social media and photos, and 1.3 GB for streaming or hotspot use. It then adds 15% headroom so you don't run dry on the last day.

• A week, maps and messaging: 7 × 0.2 = 1.4 GB, about 1.7 GB with headroom.
• Ten days, socials and photos: 10 × 0.5 = 5 GB, about 5.8 GB with headroom.
• Two weeks of daily streaming: 14 × 1.3 = 18.2 GB, about 21 GB with headroom.

The full table by trip length is in how much data you need.

How each option charges

Wi-Fi only

Free, and fine for some trips. It fails at the moments you most need data: arriving at the airport, finding the hotel, a ride-hail pickup, a two-factor code.

Roaming on your home plan

Usually a daily pass or a per-megabyte charge, billed after the trip. A daily pass costs the same on a quiet day as on a busy one. It can be the cheapest option when your plan already includes the destination at home rates, as EU SIMs do inside the EU, within fair-use limits. Otherwise it tends to cost the most on longer trips. See eSIM vs roaming.

Local SIM

Often good value per gigabyte, especially for long stays. You pay in time instead: finding a shop, often showing a passport, swapping SIMs, and starting again in every new country. See eSIM vs local SIM.

Pocket Wi-Fi

A rented router. One allowance shared across a group can be good value if everyone stays together. You also carry, charge and return it, and read the terms for loss or damage. See eSIM vs pocket Wi-Fi.

Travel eSIM

Prepaid data you buy before you go, at a price you see up front. It can't grow, nothing auto-renews, and the plan's validity starts on arrival. It's often the cheapest for short and medium trips once you count both money and time, and regional plans cover multi-country routes on one eSIM.

Step two: match the plan type to the trip

• One country: a country plan, for example Japan or United States.
• Several countries in one region: a regional plan, for example Europe or Asia. Usually cheaper than a separate plan for each stop.
• Several regions: Global.

Not sure which fits your route? Country, regional or global gives decision rules by itinerary.

Within a destination, compare per gigabyte, not just headline price. A slightly larger plan sometimes costs little more than the one below it. The product page shows live prices for every plan, and each destination guide, such as the Europe guide, shows which plan is best value per gigabyte.

Fixed data or unlimited?

For light and medium use, a fixed plan sized to your number is almost always cheaper. Unlimited plans come with a daily high-speed cap shown on the plan, after which speed drops. They make sense when you stream every day or run a hotspot. On hotspot: most plans allow sharing, but it depends on the local network. Check the plan details before you rely on it, and budget data at the streaming rate.

Five ways not to overpay

1. Buy for your real use, using the rates above, not a round number.
2. Buy before you leave. Buying at the airport costs time, and installing on home Wi-Fi is easier.
3. Use Wi-Fi for big downloads. Download maps, playlists and shows before you leave.
4. Turn off data roaming on your home line so it can't add charges while the eSIM does the work.
5. Top up instead of oversizing. If you run low, a top-up is a tap from your account. Nothing renews by itself.

Before buying, check your phone supports eSIM and is carrier-unlocked on the device list.

See Europe plans