Best eSIM for United Kingdom (2026): Prices Compared

London street with red brick terraced houses and a red double-decker bus

Short answer: for most trips to United Kingdom, 10 GB for 30 days is plenty, and GoSIM sells it for $7.99. The same size costs $17.50 (Nomad), $18.99 (Saily) and $19 (Airalo). Below are all the plans side by side.

Oct. 6, 2026

Short answer: 10 GB for 30 days at $7.99 covers most trips. Only a few days of maps and messaging? The 1 GB day pass is $1.99, or 1 GB for 7 days at $1.99. Staying a month and streaming a lot? 20 GB for 30 days is $13.99.

GoSIM United Kingdom plans

Prices start at $1.99. Day passes give you a fresh allowance that resets the next day. The 7-, 15- and 30-day plans are one fixed total for the whole period. There is no 7-day plan above 1 GB, so for a week with heavier use pick a 30-day plan.

PlanDataValidityPrice
Daily 500 MB500 MB per day1 day$1.99
Daily 1 GB1 GB per day1 day$1.99
Daily 2 GB2 GB per day1 day$2.99
Daily 5 GB5 GB per day1 day$3.99
Daily 10 GB10 GB per day1 day$6.99
1 GB / 7 days1 GB total7 days$1.99
3 GB / 15 days3 GB total15 days$3.99
3 GB / 30 days3 GB total30 days$3.99
5 GB / 30 days5 GB total30 days$4.99
10 GB / 30 days10 GB total30 days$7.99
20 GB / 30 days20 GB total30 days$13.99
50 GB / 30 days50 GB total30 days$27.99
50 GB / 180 days50 GB total180 days$43.99

Which plan for which trip

TripPlan to look atPrice
Layover or one dayDaily 1 GB$1.99
Long weekend, maps and messaging1 GB / 7 days$1.99
Week away, light use3 GB / 30 days$3.99
Ten days, some video and social5 GB / 30 days$4.99
Two to four weeks, normal use10 GB / 30 days$7.99
A month, heavy use20 GB / 30 days$13.99
A month of remote work50 GB / 30 days$27.99
Long stay or several trips over months50 GB / 180 days$43.99

If you are not sure, go one size up. Maps, bookings, ferries or trains, and translation add up.

How the prices compare

Checked on October 6, 2026, on each provider’s own United Kingdom page. All three sell a 10 GB / 30-day plan like ours.

ProviderClosest planPrice (USD)
GoSIM10 GB / 30 days$7.99
Nomad10 GB / 30 days$17.50
Saily10 GB / 30 days$18.99
Airalo10 GB / 30 days$19

For a short trip the gap is smaller. GoSIM’s 1 GB / 7 days is $1.99, against $4.50 at Nomad and $4.49 at Saily. Airalo’s smallest plan is 1 GB for 3 days at $4. At 20 GB / 30 days we are $13.99, against $25 at Nomad, $30.99 at Saily and $31 at Airalo.

Before you land

  • Phone support. You need an eSIM-capable phone that is carrier-unlocked. The quickest check is Settings, then look for "Add eSIM".

Setup

  1. Pick a plan and check out as a guest. No account needed.
  2. Your QR code arrives by email.
  3. Scan it under Settings, Mobile Data, Add eSIM. You can do this at home.
  4. Land in United Kingdom and the eSIM connects to the local network.

GoSIM offers a 7-day refund on eSIMs that haven’t been activated. See all current plans on the United Kingdom eSIM page. Also heading to other European countries? Read our guide to eSIMs for Swiss travelers in Europe.

Frequently Asked Questions

How much data do I need for United Kingdom?
For one to two weeks of maps, messaging, translation and some social media, 5 to 10 GB is usually enough. If you stream video or work online, look at 20 GB. GoSIM United Kingdom plans run from 500 MB per day to 50 GB.
Does a GoSIM United Kingdom eSIM include a phone number?
No. These are data-only plans. Calls and messages work through apps like WhatsApp, FaceTime or Signal.
Which phones support a United Kingdom eSIM?
You need an eSIM-capable phone that is carrier-unlocked. If your settings show an Add eSIM option, you are set.
Can I use one eSIM in several countries?
A GoSIM United Kingdom plan is for United Kingdom. For a trip through several countries, a Europe regional plan covers several countries with one eSIM.
Can I install the eSIM before I leave?
Yes. Scan the QR code at home on WiFi. The plan connects when you arrive in United Kingdom.
Is there a refund if I change plans?
GoSIM offers a 7-day refund on eSIMs that haven’t been activated.