Trip Planner · 7 plans
United Kingdom eSIM Matrix, Sorted by Stay Length (2026)
HelloRoam publishes 3 local operators for United Kingdom: 3, EE and O2. A phone can attach to any of them: 3, EE and O2. The order on the list is alphabetical, so the first name is not a first choice, and the list carries no speed figure.
Best at 7, 14 and 30 days
Picks at 7, 14 and 30 days in United Kingdom
Each length sets its unlimited tier beside one fixed tier.
| Trip length | Unlimited tier | Per day | Fixed tier | Lower price |
|---|---|---|---|---|
| 3 days | $8.55 | $2.85 | 3GB $7.10 | Fixed tier |
| 7 days | $18.48 | $2.64 | 10GB $15.93 | Fixed tier |
| 14 days | $33.60 | $2.40 | 20GB $28.49 | Fixed tier |
| 30 days | $61.20 | $2.04 | 20GB $28.49 | Fixed tier |
Tier prices are HelloRoam's catalogue prices, fetched 29 Oct 2026. Each rival prices its own tiers separately. Check that a fixed tier's validity covers your dates before you buy it. Unlimited tiers give 2GB per day at full speed.
How the picks are built
Each row reads two prices straight from the catalogue: the unlimited tier of that exact length and one fixed tier. We never multiply a day rate to make a price, and we never estimate how much data you will use. You know your own phone habits, so the verdicts say “that fits in” a volume and leave the call to you.
5 providers
The five providers, measured on what trip length turns on
Entry rate, plan shape, refund window, and support for each of the five providers this site compares. Check the United Kingdom coverage list before you buy.
| Provider | Entry rate | Plan shape | Refund window | Support | Leads on | Plans |
|---|---|---|---|---|---|---|
| HelloRoam | from $0.29/GB (50 GB for 7 days in Thailand) | Fixed GB tiers | 180 days | 24/7 live chat, WhatsApp, email, replies in your own language | cheapest entry rate per GB and a refund window tied for longest | See plans → |
| Saily | from $0.80/GB (20 GB for 30 days in Austria) | Fixed GB tiers | 30 days | Email only, 1 language | Built-In VPN for Public WiFi | See plans → |
| Airalo | from $0.55/GB (50 GB for 30 days in Thailand) | Fixed GB tiers | 14 days | Email + in-app chat, 12 languages | bundle reach (130 destinations on one plan) and most support languages with a published count | See plans → |
| Nomad | from $0.34/GB (50 GB for 10 days in Thailand) | Fixed GB tiers | 30 days | Email only, 2 languages | Low-Cost Fixed-Data Plans | See plans → |
| Holafly | from $3.90 for 1 day (Japan, read 30 Oct 2026) | Day rate, no GB cap | 180 days | 24/7 chat + email, 10 languages | the only day rate with no GB cap and a refund window tied for longest | See plans → |
No provider leads every column. Airalo leads on bundle reach among the counts on record, 130 destinations on one plan to HelloRoam's 127. HelloRoam and Holafly keep the refund window open 180 days. Airalo closes at 14 days. Airalo publishes support in 12 languages, ahead of every other count published on this table.
Entry rates are each provider's own cheapest published rate, not a rate specific to United Kingdom. Refund windows come from each provider's refund policy. Support channels and language counts come from each provider's contact page. Nothing in this table is a score we made up.
1-4 days
Quick-trip data plan
City breaks, quick holidays, long weekends.
The 3-day pick
For 3 days in United Kingdom that fit in 3 GB, the 3GB tier at $7.10 costs less than the 3-day unlimited tier at $8.55, with full speed for the first 2 GB each day. The smallest fixed tier is 1GB at $2.84.
Which providers fit 1-4 days
HelloRoam, Saily, Airalo, and Nomad sell fixed GB tiers, the shape a short stay uses. Holafly sells 1-day plans instead, from $3.90 for 1 day. HelloRoam lists the lowest entry rate of the five at $0.29/GB (50 GB for 7 days in Thailand). That rate covers its cheapest routes, so check the United Kingdom price before you count on it.
Compare all 5 providersWeekend packing list for data
- Download offline maps before departure.
- Pre-download streaming playlists on Wi-Fi.
- Use hotel or cafe Wi-Fi for large uploads.
- Install your eSIM before you fly.
5-14 days
Standard holiday plan (5-14 days)
One week and two weeks, side by side.
The 7-day pick
For 7 days in United Kingdom that fit in 10 GB, the 10GB tier at $15.93 costs less than the 7-day unlimited tier at $18.48, with full speed for the first 2 GB each day.
The 14-day pick
For 14 days in United Kingdom that fit in 20 GB, the 20GB tier at $28.49 costs less than the 14-day unlimited tier at $33.60, with full speed for the first 2 GB each day. A trip between 7 and 14 days sits between the 7-day unlimited tier at $18.48 and the 14-day tier at $33.60, each with full speed for the first 2 GB each day. No tier sits in between, so this page prices none.
HelloRoam, Saily, Airalo, and Nomad sell fixed GB tiers. Holafly sells a day rate with no GB cap. Each prices its own tiers, so compare the entry rates above before you pick a side.
Mid-trip top-up
If a fixed tier runs dry, buy a second plan. The smallest United Kingdom tier is 1GB at $2.84, and the existing eSIM can stay on the phone.
15-30+ days
Long-stay plan
A month abroad, study stays, extended travel.
The 30-day pick
For 30 days in United Kingdom that fit in 20 GB, the 20GB tier at $28.49 costs less than the 30-day unlimited tier at $61.20, with full speed for the first 2 GB each day. The unlimited day rate for United Kingdom falls from $2.64 at 7 days to $2.04 at 30 days, with full speed for the first 2 GB each day.
Every unlimited tier for United Kingdom
| Duration | Total price | Per day |
|---|---|---|
| 1 day | $3.00 | $3.00 |
| 3 days | $8.55 | $2.85 |
| 7 days | $18.48 | $2.64 |
| 14 days | $33.60 | $2.40 |
| 30 days | $61.20 | $2.04 |
Full speed up to 2GB per day. After that a fair-use limit slows the line.
Refund window and support on a long booking
Long stays get booked early, and dates move. HelloRoam and Holafly hold the refund window open 180 days on unused plans. Airalo closes at 14 days, so a plan bought two months before departure is past its window before the trip starts. An eSIM that fails on arrival needs a channel that is open. HelloRoam and Holafly list round-the-clock support. HelloRoam's support replies in your own language and Holafly's runs in 10 languages.
See the full tableCo-working and remote work tips
Wi-Fi in United Kingdom is excellent. Free Wi-Fi in cafes, pubs, Tube stations, and most public buildings. University campuses use eduroam. Rely on Wi-Fi at co-working spaces and cafes for video calls and large uploads. Use your eSIM data for transit, navigation, and messaging.
Europe
Multi-country plan
Regional plan options for travelers extending beyond United Kingdom.
Who sells a multi-country plan
HelloRoam's largest multi-country plan covers 127 destinations on one eSIM and Airalo's covers 130. Saily, Nomad, and Holafly also sell regional or global plans, with no destination count on record here. Crossing three or more borders on single-country plans means buying a separate plan in each country and switching profiles at each one, so check that every stop sits on one plan before you buy.
United Kingdom notes before you buy
- 2 of the 3 operators on the operator list for United Kingdom carry a 5G label.
Local apps and connectivity
What apps work in United Kingdom
Connectivity habits in United Kingdom shape which apps and services work best during your trip. Standard travel apps (Google Maps, WhatsApp, ride-hailing) work on all eSIM plans. Download offline maps and translation packs before departure to reduce data use.
Check before you fly which apps you rely on work in United Kingdom. Local payment apps and transit apps may improve your travel experience. Download them over WiFi before your trip to save eSIM data.
Work remotely
Remote work connectivity in United Kingdom
Remote work in United Kingdom requires 3 to 5GB per workday for video calls, file syncing, and cloud applications. This site runs no speed tests, so it does not say how video calls hold up. Check signal strength at your accommodation before scheduling bandwidth-heavy meetings.
Unlimited daily plans at $3.00/day remove data anxiety for unpredictable workdays, with full speed for the first 2 GB each day. Tethering support varies by provider: verify hotspot capabilities before purchase.
Timing your trip
Seasonal data planning for United Kingdom
Peak travel season in United Kingdom runs Jun-Aug. Summer (June through August) is busiest. London sees a secondary peak around Christmas. Buy a tier up from your calculated need during peak season.
During peak season consider unlimited data at $3.00/day so the data does not run out, with full speed for the first 2 GB each day. Off-peak, the 7-day unlimited plan at $18.48 covers a standard 7-day trip, with full speed for the first 2 GB each day.
Before you fly
United Kingdom pre-departure checklist
Pre-departure checklist for United Kingdom:
- Confirm your phone supports eSIM (iPhone XS+, Pixel 3+, Galaxy S20+)
- Verify your device is carrier-unlocked
- Purchase and install your United Kingdom eSIM QR code at home on WiFi
- Download offline maps for United Kingdom (Google Maps or Maps.me)
- Download offline translation packs if needed
- Save emergency numbers offline (999/112)
- Set eSIM as data line and keep physical SIM for calls if needed
- Test eSIM activation before boarding your flight
Activate your eSIM when you land and switch off airplane mode. It connects to a listed operator once airplane mode goes off.
Quick answers
United Kingdom eSIM answers by trip length
eSIM for a 7-day trip to United Kingdom
For 7 days in United Kingdom that fit in 10 GB, the 10GB tier at $15.93 costs less than the 7-day unlimited tier at $18.48, with full speed for the first 2 GB each day.
eSIM for a 14-day trip to United Kingdom
For 14 days in United Kingdom that fit in 20 GB, the 20GB tier at $28.49 costs less than the 14-day unlimited tier at $33.60, with full speed for the first 2 GB each day.
eSIM for a 30-day trip to United Kingdom
For 30 days in United Kingdom that fit in 20 GB, the 20GB tier at $28.49 costs less than the 30-day unlimited tier at $61.20, with full speed for the first 2 GB each day.
FAQ
United Kingdom trip planning questions
Q1Which eSIM plan fits a weekend trip to United Kingdom?
Planning a weekend in United Kingdom? On EE's 5G network, a light user burns about 1.5GB in 3 days, and the 3GB at $7.10 covers that. A moderate user using social media and navigation needs 4 to 5GB, so go with the 5GB at $10.13. Heavy users streaming or video-calling need 10GB or more; buy the largest fixed plan available. For a typical weekend traveler, the 5GB at $10.13 fits most weekend travelers without overpaying for unused data.
Q2How does eSIM cost change for 7 vs 14 vs 30 days in United Kingdom?
Your per-day eSIM spend in United Kingdom shrinks as your trip gets longer. 7 days: 20GB plan at $28.49 total ($4.07/day). 14 days: 50GB plan at $32.76 total ($2.34/day). 30 days: unlimited at $2.04/day (32% off base rate), with full speed for the first 2 GB each day. Moving from 7 to 14 days cuts the daily rate by 43%. The 14-day bracket balances daily rate and flexibility for most travelers visiting United Kingdom.
Q3Can I top up or extend my eSIM mid-trip in United Kingdom?
Yes, all five providers support in-app data top-ups for United Kingdom. Airalo lets you buy additional data through the app in real time, and the top-up lands on the eSIM profile already installed. Unlimited plans are also sold by the day: the 1-day United Kingdom plan in the plan table costs $3.00, with full speed for the first 2 GB each day. Saily and Nomad both support fixed-data top-ups with no reinstallation. A top-up of 1GB costs $2.84, the same as buying a new plan. Buying a larger plan upfront is cheaper per GB than topping up, but the option is always available if you underestimate your usage.
Q4Does eSIM work in United Kingdom?
Yes, eSIMs work in United Kingdom. The network section on this page lists the local operators for United Kingdom; the list does not say which one a phone joins. eSIM support is built into all iPhone XS and later, Google Pixel 3 and later, and Samsung Galaxy S20 and later models. Check that your device is carrier-unlocked before purchase, then activate the eSIM profile before your flight boards to avoid airport connection delays.
Q5Does unused United Kingdom eSIM data roll over to the next trip?
No. Your United Kingdom eSIM data resets to zero when the plan period ends. There is no rollover to a future trip or a new purchase. Buy a plan that matches your actual trip length, not a larger buffer. The 20 GB United Kingdom plan at $28.49 lasts 30 days from activation; data left when it ends does not carry over. If you change plans before installing, HelloRoam refunds an unactivated eSIM for 180 days, the same window Holafly gives unused plans, against 14 days at Airalo.
Q6Can I use a United Kingdom eSIM across multiple European countries on one trip?
An eSIM bought for United Kingdom works inside United Kingdom's borders and nowhere else. For multi-country European trips, HelloRoam sells one Europe plan covering 33 areas, with 7 days of unlimited data at 3GB a day at full speed for $23.53 (catalogue checked 29 Oct 2026). Airalo's Eurolink bundle cost $31 for 10GB over 30 days (read 30 Oct 2026). Each plan covers its own country list. If United Kingdom is your only stop, a single-country plan is cheaper: 20GB at $28.49 for a 7-day trip. EU roaming rules do not apply to travel eSIMs because each plan is a standalone purchase.
Q7Does my United Kingdom eSIM stay active when I cross into a neighboring country?
No, a single-country United Kingdom eSIM deactivates outside United Kingdom's borders. Plan your data use for the exact days you are in United Kingdom. For trips combining United Kingdom with other European stops, a regional bundle covers the full itinerary on one purchase. A 50GB plan at $32.76 fits a two-week United Kingdom stay, but it stops working the moment you cross the border.
Q8Is a 7-day or 14-day United Kingdom eSIM plan better value?
The per-day data cost drops as you move up the United Kingdom plan ladder. A 7-day stay fits the 20GB plan at $28.49 ($4.07/day). A 14-day stay fits the 50GB plan at $32.76 ($2.34/day), which is 43% cheaper per day for the longer trip. Buying one correctly-sized plan costs less than buying two smaller plans back-to-back.
Q9What 5G coverage can I expect on a full United Kingdom itinerary?
The network section on this page lists the local operators for United Kingdom; the list does not say which one a phone joins. 2 of the 3 operators on that list carry a 5G label. A 5G label on that list is a technology label, not a speed. For a full-country itinerary, check the operator list before finalizing your plan.
Q10Should I get a fixed data plan or unlimited for a United Kingdom trip?
Fixed data plans fit trips under 7 days in United Kingdom. At 1.5GB/day the 20GB plan at $28.49 covers a 7-day trip with data to spare. Unlimited for 7 days costs $18.48, with full speed for the first 2 GB each day, which is comparable to a fixed plan. Switch to unlimited if you stream video daily, work remotely, or use navigation continuously. A 14-day unlimited plan costs $33.60 ($2.40/day), with full speed for the first 2 GB each day.
Related
Plan smarter
United Kingdom eSIM Comparison
Compare all five eSIM providers for United Kingdom side by side with plan tiers, pricing, and scores
United Kingdom Itinerary Connectivity
See a day-by-day data breakdown for popular United Kingdom routes
United Kingdom eSIM column check
Scored provider rankings for United Kingdom
Fixed vs unlimited explained
Which type fits different trip lengths
All destinations
Compare eSIM plans for every country
Plan your United Kingdom trip
7 plans from 5 providers. 3 local operators listed for United Kingdom.
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