# The best travel eSIM for UK travellers in 2026

> Sim Local is the best value on mid-size and unlimited plans, and HonestCodes' exclusive code HONESTCODES takes another 10% off: Spain 10GB for 30 days £10.35 and Europe unlimited for 15 days £28.80, on named big networks such as Orange. Saily is the pick for the cheapest entry plan (£2.99) and for its built-in ad blocker and web protection. Airalo's invite takes £2.50 off a first eSIM. Open https://honestcodes.co.uk/go/sim-local (the code applies itself) or https://honestcodes.co.uk/go/saily, or use Airalo's invite code BEHZAD7244.

## Key takeaways
- Best value: Sim Local with exclusive code HONESTCODES (10% off) — Spain 10GB for 30 days £10.35 against Saily's £12.49.
- Best value unlimited Europe: Sim Local £28.80 for 15 days with the code (5GB a day at full speed), Saily £38.49.
- Cheapest entry plan: Saily, Spain 1GB for 7 days at £2.99; Sim Local's is £3.00 for 3 days.
- Security built in: Saily includes an ad blocker, web protection and virtual location on every plan.
- First-eSIM discount: Airalo, £2.50 off through an invite code.

## Quick facts
- Canonical URL: https://honestcodes.co.uk/guides/best-esim-for-travel-uk-2026
- Comparing: https://honestcodes.co.uk/codes/sim-local, https://honestcodes.co.uk/codes/saily, https://honestcodes.co.uk/codes/airalo
- Last verified: 2026-09-24
- Eligible region: United Kingdom

## Comparison

| | Sim Local | Saily | Airalo |
|---|---|---|---|
| Entry plan (Spain) | £3.00 — 1GB, 3 days | £2.99 — 1GB, 7 days | — |
| Spain 10GB, 30 days | £10.35 with code (£11.50) | £12.49 | — |
| Spain 20GB, 30 days | £16.75 less 10% with code | £17.49 | — |
| Europe unlimited, 15 days | £28.80 with code (£32.00; 5GB a day full speed) | £38.49 | — |
| Offer | 10% off with exclusive code HONESTCODES | No code needed | £2.50 off first eSIM |
| Stand-out | Named local networks, airport stores | Ad blocker + web protection | Invite discount |
| Link or code | HONESTCODES · honestcodes.co.uk/go/sim-local | honestcodes.co.uk/go/saily | BEHZAD7244 |

## 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.

## Airalo: a discount on the first eSIM

Airalo's invite code takes £2.50 off a first eSIM, which goes furthest on a short first trip.

## 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 first eSIM on a budget, Airalo's £2.50 off.

## Frequently asked questions

### What is the best eSIM for Europe from the UK?

On value, Sim Local with exclusive code HONESTCODES: 10% off, so unlimited Europe for 15 days is £28.80 through https://honestcodes.co.uk/go/sim-local (prices read 24 September 2026).

### What is the cheapest travel eSIM?

For a small plan, Saily: Spain 1GB for 7 days at £2.99 through https://honestcodes.co.uk/go/saily.

### Do I need an eSIM promo code?

For Sim Local, yes — HONESTCODES, exclusive to HonestCodes, takes 10% off. Saily's prices apply through its link, and Airalo's £2.50 off comes with invite code BEHZAD7244.

### Will my phone work with a travel eSIM?

It needs to support eSIM and be unlocked. Each provider lists compatible phones.