Roaming is still one of the biggest hidden costs of travel. A few days abroad on your home carrier's "travel pass" can cost more than a checked bag — and most travelers don't even realise until the bill arrives. Here's how to stay connected without bill shock.
Why roaming is so expensive
When you roam, your home carrier rents access to a foreign network and adds a markup. Even the friendly-sounding "international day pass" usually charges $10–$15 per day. On a two-week trip that's $140–$210 — for service you'd pay locals about $5 a week for.
Carriers price it this way because most travelers will pay. It's bundled into your existing plan, billed in your home currency, and feels safer than the unknown of buying a SIM at the destination. That convenience is the entire markup.
Your real options
You have four practical ways to stay online abroad. Each has a clear trade-off.
- Local SIM card. Cheap (often $3–10 for 5–10 GB) but means finding a shop on arrival, swapping the tiny SIM tray, and dealing with a new phone number for the duration of the trip.
- Carrier roaming pass. Most convenient — your number works as-is — but the most expensive option per day.
- Travel eSIM. Buy data for your destination digitally before you land, activate by scanning a QR code, keep your home number for calls and SMS. Cheapest sane option for most trips.
- Public Wi-Fi only. Free, but unreliable and a security risk on open networks. Workable for a weekend, painful for longer.
Why a travel eSIM usually wins
A travel eSIM is software-only — there's no physical card. You buy a plan for the country (or region) you're visiting, scan one QR code in your phone's settings, and you're online in about 30 seconds. Your home SIM stays in the phone so calls and SMS to your usual number still work.
For multi-country trips this is a category leader: one regional or global eSIM covers your whole route instead of a new local SIM at every border. Most modern phones can even hold multiple eSIMs at once.
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How to set one up before you fly
- Check your phone supports eSIM (most phones from 2018 onward do; iPhone XS+, Pixel 3+, Galaxy S20+).
- Pick a plan for your destination. For multi-country trips, a regional or global plan beats per-country.
- Pay — by card or crypto, depending on what the provider supports.
- Receive a QR code. Scan it from your phone's Settings → Cellular / Mobile.
- Toggle the new eSIM on for data when you land. Keep your home SIM for calls and SMS.
Bottom line
If you'd otherwise pay $10–15 per day for carrier roaming, a travel eSIM will save you 80–95% on data for almost any trip. For a one-week trip with 5 GB, that's roughly $6 vs $70+. The setup takes 30 seconds. There's no reason left to pay roaming fees.