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O2 roaming charges
and when an eSIM costs less.

Every O2 roaming pack, checked on O2's own site, next to live data eSIM prices by destination.

Where a data eSIM beats O2's 10-day cost (£60)

USA

eSIM £8.30 vs £60

£51.70 less

O2 roaming charges and passes

Pack	Type	Validity	Data	Calls	SMS	Also
£6	O2 Travel Bolt On	per day	Per plan	-	-	Unlimited calls, texts and data (speeds up to 2Mbps) outside the O2 Europe Zone; roaming in the Europe Zone is included up to 25GB

From www.o2.co.uk/eu-roaming, checked 28 September 2026. O2 is a trademark of Telefonica UK Limited (Virgin Media O2). Slashtel is not affiliated with O2.

Questions

How much is O2 international roaming?

O2's options are £6 a day (O2 Travel Bolt On), as listed on O2's site on 28 September 2026.

Is a data eSIM cheaper than O2 roaming?

For data, in 1 of the destinations we compare: USA (£8.30 vs £60). O2's options also include calls, which a data eSIM does not.

Can I keep my O2 number and use an eSIM?

Yes. Keep the O2 SIM in the phone for calls and texts such as bank codes, and use the eSIM for mobile data.

O2 roaming chargesand when an eSIM costs less.