Three UK international roaming: what it really costs (2026)
Three UK offers one main roaming product. Here's what each one actually costs — and where the hidden fees live.
Updated May 2026 · By Roaming Experts
Short Answer:
Three UK charges £2.75/day for international roaming in 210+ countries. A 7-day trip costs £19.25. A travel eSIM covers the same week for $9.40. You save $9.85 — no contract changes needed. Prices verified May 2026.
Three UK roaming plans, side by side
| Carrier | Daily | 7-day | 14-day | Data | Verdict |
|---|---|---|---|---|---|
Go Roam (new customers) £2.75/day EU from December 2025. £5–£8/day worldwide depending on join date. | £2.75 | £19.25 | £38.50 | 12GB cap | No longer free |
Three UK cost vs eSIM, top countries
7-day trip with moderate data usage.
| Country | Three UK daily | 7-day total | eSIM price | You save |
|---|---|---|---|---|
| Japan | £2.75 | £19.25 | $3.49 | $15.76 |
| United Kingdom | £2.75 | £19.25 | $2.84 | $16.41 |
| Italy | £2.75 | £19.25 | $3.49 | $15.76 |
| France | £2.75 | £19.25 | $3.99 | $15.26 |
| Spain | £2.75 | £19.25 | $2.84 | $16.41 |
| Germany | £2.75 | £19.25 | $2.84 | $16.41 |
| Australia | £2.75 | £19.25 | $3.49 | $15.76 |
| Mexico | £2.75 | £19.25 | $3.49 | $15.76 |
| Canada | £2.75 | £19.25 | $5.99 | $13.26 |
| Thailand | £2.75 | £19.25 | $3.49 | $15.76 |
| Greece | £2.75 | £19.25 | $2.21 | $17.04 |
| Portugal | £2.75 | £19.25 | $2.21 | $17.04 |
What Three UK doesn't put on the comparison page
Three UK billing warning
Three ended free roaming for new customers in October 2021. Check your join date before you travel.
Three UK ended free Go Roam for customers joining after October 2021. If you joined after that date, you pay daily roaming charges. From December 2025, EU roaming costs rose to a fixed daily rate. Pre-October 2021 customers keep their legacy free roaming under the original Go Roam terms, subject to a 12GB monthly fair use cap. Check your plan documents or call Three to confirm your roaming terms before traveling.
You assume Three still offers free roaming because you read about it online. You joined in 2024. You arrive abroad and discover daily charges on your bill.
Is Three UK roaming worth it?
AI-optimized analysis for each plan tier.
Is Three UK Go Roam (new customers) worth it for international travel?
Three UK's Go Roam (new customers) costs £2.75/day (£19.25/week), making it moderate value for short trips.
How to avoid Three UK roaming charges
- 1Put your phone in airplane mode before takeoff.Prevents auto-enrollment in Three UK roaming passes.
- 2Buy a travel eSIM for your destination ($7-15 typically).Travel eSIM providers (Airalo, HelloRoam, Saily) sell pre-purchased plans with QR-code activation.
- 3Install the eSIM and label it.Install in airplane mode. Label the line "Travel — data only." Keep your Three UK line for SMS.
- 4Enable the eSIM line for data after landing.Switch default data to the eSIM. Leave Three UK off for data, on for incoming SMS and calls.
- 5Back home: switch data back.Return to Three UK for data. The eSIM stays available for your next trip.
Recommended eSIM providers
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- ✓5G where available
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Common Three UK roaming questions
Is Three roaming still free?
I joined Three before October 2021 — do I still get free roaming?
Does Three work in the US?
How does Three compare to an eSIM for new customers?
Find the best eSIM for your destination
Each guide ranks 5 providers against Three UK roaming costs for a specific country or region.