How to avoid expensive roaming charges abroad

Traditional roaming is convenient, but it's often the most expensive way to use data abroad. A few minutes of maps, messaging, and photo uploads can add up fast when you're paying per megabyte on your home carrier's roaming rate.

The good news: a little planning before you fly can cut your connectivity costs dramatically while keeping you online the moment you land.

1. Use a travel eSIM

A destination eSIM gives you local data rates without swapping your SIM. You keep your normal number for calls and texts, and use the eSIM purely for affordable data. Because you buy a fixed allowance up front, there are no surprise overage fees.

2. Turn off roaming on your primary line

Once your eSIM is installed and set as your data line, disable data roaming on your main SIM. This prevents background apps from silently connecting through your expensive home carrier.

3. Download what you need on Wi-Fi

• Offline maps for your destination.
• Boarding passes, tickets, and reservations.
• Entertainment for the flight or train.

4. Right-size your plan

Estimate your daily usage: messaging and maps are light, while video streaming is heavy. Choosing a plan that matches how you actually travel means you won't overpay for data you'll never use — and you can always top up if you need more.