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United Kingdom eSIM

How much eSIM data for a trip in the United Kingdom?

✓ Prices checked 22 Oct 2026

For 14 days in the United Kingdom with normal daily use, TripUtils estimates 6–9 GB. A 10 GB plan is the usual buffer. Not a live price. TfL, maps and messaging fit the normal band. This is a high-intent eSIM destination for EU visitors because home roaming is no longer automatic. Type G at 230 V needs a UK adapter.

Photo: Michal Libertowski / Pexels

Travel essentials in the United Kingdom

The four things that save the most money or hassle before you go.

eSIM for the United Kingdom

Mobile data in the United Kingdom from the moment you land, instead of costly roaming. Install before you fly.

See Saily plans →

Airport transfer

Pre-book a ride from the airport to your stay – or compare with a taxi or public transport on arrival.

Find a transfer →

Tours & tickets

Attractions, tours and activities in the United Kingdom – compare prices on more than one site.

Browse Klook →

Flight delayed?

3+ hours late or cancelled? Up to €600 per passenger under EU261, depending on distance.

Check claim (AirHelp) →

Affiliate links: TripUtils may earn a commission at no extra cost to you. Affiliate disclosure. TripUtils does not show live prices.

Maps, messaging and typical social use are included in this level.

What to do next

EU roaming does not cover the United Kingdom. A 10 GB plan is the usual buffer. Open Saily and pick a live United Kingdom plan.

Saily plans for the United Kingdom — snapshot

As listed on saily.com on 22 Oct 2026, in US dollars. Prices change; the live price is on Saily.

DataValidPrice (as listed)
1 GB7 daysUS$4.49
3 GB30 daysUS$8.99
5 GB30 daysUS$12.99
10 GB30 daysUS$18.99
20 GB30 daysUS$30.99

Saily also lists unlimited plans for the United Kingdom; the price depends on the number of days.

For 14 days at 6–9 GB (10 GB planning size), the smallest listed plan that fits is 10 GB for 30 days (US$18.99 on 22 Oct 2026).

7, 14 or 30 days at a glance

TripEstimate (normal use)Planning sizeSmallest Saily plan that fits
7 days3–5 GB5 GB5 GB / 30 days – US$12.99
14 days6–9 GB10 GB10 GB / 30 days – US$18.99
30 days12–18 GB20 GB20 GB / 30 days – US$30.99

Planning size

Habits14-day rangePlanning size
Normal (maps, messages, social)6–9 GB10 GB
Normal + daily video14–21 GB30 GB

Assumptions and sources

Light 0.20 / normal 0.50 / heavy 0.95 GB per day, plus optional extras, plus about 20% buffer. No live retail prices.

School holidays and December markets lift London stays; GB still follows phone habits, not the Tube map.

These are planning ranges, not live prices.

Regional plans and guides

United Kingdom is also covered by these Saily regional plans: Europe (35 countries), Global (121 countries).

Guides: New Year's Eve destinations · Set up an eSIM on iPhone/Android · Switzerland & UK on an Austrian plan

Plan the trip: transfers and things to do in the United Kingdom

After landing: pre-book a transfer from the airport or use a taxi or public transport on arrival. For tours and tickets in the United Kingdom, compare prices on more than one site – TripUtils has not checked these offers and does not rank them by price.

Airport transfer

Kiwitaxi

Pre-booked airport and city transfers: you see the price for the route and car type before you book.

Book an airport transfer

Some links may be affiliate links. Commissions do not change calculator results. See the affiliate disclosure. Affiliate disclosure.

Tours and tickets in United Kingdom

Klook

Tours, tickets, day trips and local transport passes; strong range in Asia. Search your city – the offer differs by place.

Find activities on Klook
Tiqets

Mobile tickets for museums and attractions. Search your city – not every sight is listed.

Find tickets on Tiqets
WeGoTrip

Self-guided audio tours on your phone. Search your city – coverage differs by place.

Find audio tours on WeGoTrip
Go City

City pass for London. Worth it only if you visit several paid sights – add up the single tickets first.

Check Go City passes

Some links may be affiliate links. Commissions do not change calculator results. See the affiliate disclosure. Affiliate disclosure.

Flight delayed or cancelled? Flight delay compensation (EU261)

Also useful

eSIM United KingdomRoaming in the United KingdomCard vs ATM in United KingdomPlugs in the United KingdomUnited Kingdom budget

Common questions

Is 10 GB enough for 14 days in the United Kingdom?

TfL, maps and messaging fit the normal band. This is a high-intent eSIM destination for EU visitors because home roaming is no longer automatic. Type G at 230 V needs a UK adapter. The 6–9 GB estimate plus buffer lands on 10 GB. Hotel Wi‑Fi is not counted. Streaming video on mobile is the usual reason to go larger.

Should I roam in the United Kingdom instead?

After Brexit, A1 and Drei bill the UK outside EU roaming (as of 21 Oct 2026: A1 Roaming Pass €4.90 per GB or Datenwoche 2 GB for €4.90, Drei 1 GB for €5 or 5 GB for €10). Magenta says roam like at home still applies there until further notice.

Do you show live Saily prices?

No. The plan table on this page is a dated snapshot from saily.com (22 Oct 2026); the live price is always on Saily. The GB figures are TripUtils estimates.