The best travel eSIM for UK travellers in 2026

How the prices were compared

Each price was read in pounds on the provider's own destination pages on 24 September 2026, for the same destination and allowance where both sell it. Spain stands in for a typical European holiday because Sim Local and Saily both price it. Voucher sites quote eSIM 'codes' with no date; the prices below are what each provider's own pages showed that day.

Sim Local: most data for the money

From 10GB upwards Sim Local undercuts Saily on every like-for-like plan compared here even before its code — and HonestCodes' exclusive HONESTCODES takes 10% more off, making its Europe unlimited plan (5GB a day at full speed) £9.69 cheaper than Saily's over 15 days. The extra it brings is the network name: Orange in Europe, Lycamobile in the USA, AU in Japan. Unused eSIMs are refundable within 14 days, and there are stores at Heathrow.

Saily: the smartest small plan

Saily's 1GB Spain plan is a penny cheaper than Sim Local's and runs for seven days rather than three. Every Saily plan also carries an ad blocker — which Saily says saves 28.6% of data on average in a West Coast Labs test — plus web protection and a virtual location, from the company behind NordVPN.

To claim it, use the Sim Local code HONESTCODES or join through honestcodes.co.uk/go/sim-local (Exclusive 10% off travel eSIMs).

To claim it, join through honestcodes.co.uk/go/saily: no code needed, the eSIM data from £2.99, security built in offer is built into the link.

To claim it, join through honestcodes.co.uk/go/airalo: no code needed, the 15% off your first eSIM offer is built into the link.

To claim it, use the eSIMology code HONESTCODES or join through honestcodes.co.uk/go/esimology (10% off any eSIM plan, exclusive code).

Airalo: the widest store, with loyalty cashback

Airalo covers 200+ destinations with local eSIMs from £3.50, regional and global plans and unlimited-data options, and pays up to 10% loyalty cashback in Airmoney on every purchase. HonestCodes is an approved Airalo partner: our Airalo link opens the UK store in pounds with 15% off a first eSIM, no code to type.

Which to choose

For a week or more with real data use, Sim Local gives the most for the money. For a short trip, or if you want ads blocked to stretch your allowance, Saily. For a destination the other two do not cover, or a global plan, Airalo.

Coming to the UK to study? Study UK Now covers eSIMs for international students arriving in the UK.

More travel eSIMs: Yesim, Breeze eSIM, WorldSIM and BambooSIM

Yesim: 15% off your first Yesim eSIM with exclusive code HONESTCODES, through our Yesim link (page: our Yesim page).

Breeze eSIM: 10% off once two or more travel eSIMs are in your basket, with data plans for 190+ countries from £4.00 and no contract. Deal link: honestcodes.co.uk/go/breeze-esim (page: our Breeze eSIM page).

WorldSIM: travel eSIMs from £2.66 for 1 GB over 7 days, up to £14.82 for 20 GB over 30 days, with no roaming charges. Deal link: honestcodes.co.uk/go/worldsim (page: our WorldSIM page).

BambooSIM: eSIMs for 200+ destinations from $4.95, delivered by email in seconds. A Europe eSIM covering 44 destinations starts at $5.95, and hotspot is included. Deal link: honestcodes.co.uk/go/bamboosim (page: our BambooSIM page).