Cheapest eSIM for United Kingdom in 2026
Price Summary:
HelloRoam offers the cheapest United Kingdom eSIM at $0.66/GB (50GB, 30 days, $32.76 total). Next cheapest: HelloRoam at $1.42/GB. Airport SIM kiosks charge $10-25 for 10-30GB / 30 days. 6 providers compared. Prices verified May 2026.
Every plan, cheapest first
| # | Provider | $/GB ↑ | Plan | Total | Network | Days | 30d | Action |
|---|---|---|---|---|---|---|---|---|
| 🥇 |  HelloRoamCheapest | $0.66 | 50GB | $32.76 | O2 | 30d | ↓ | Get HelloRoam plan → |
| 🥈 | HelloRoam | $1.42 | 20GB | $28.49 | O2 | 30d | ↓ | Get HelloRoam plan → |
| 🥉 | HelloRoam | $1.59 | 10GB | $15.93 | O2 | 30d | ↓ | Get HelloRoam plan → |
| 4 | HelloRoam | $2.03 | 5GB | $10.13 | O2 | 30d | ↓ | Get HelloRoam plan → |
| 5 | HelloRoam | $2.37 | 3GB | $7.10 | O2 | 30d | ↓ | Get HelloRoam plan → |
| 6 | HelloRoam | $2.84 | 1GB | $2.84 | O2 | 7d | ↓ | Get HelloRoam plan → |
Prices verified May 28, 2026. Updated weekly from provider websites.
Pick by how much data you need
Unlimited daily data price breakdown
The cheapest unlimited daily data plan for United Kingdom. Longer trips get automatic volume discounts. The table below shows what you pay at each duration.
| Duration | Per day | Total | Discount |
|---|---|---|---|
1 day | $2.68/day | $2.68 | 4% off |
3 days | $2.57/day | $7.70 | 8% off |
7 days | $2.57/day | $17.97 | 8% off |
2 weeks | $2.48/day | $34.76 | 11% off |
30 daysBest Value | $2.29/day | $68.63 | 18% off |
United Kingdom eSIM market rates
United Kingdom has 6 eSIM plans from 1 provider, ranging from $0.66/GB to $2.84/GB. Median per-GB across all 6 plans is $1.81/GB. The per-GB spread is $2.18, meaning the priciest plan costs 333% more per gigabyte than the cheapest.
Who sells eSIMs for United Kingdom
HelloRoam leads United Kingdom with 6 plans, starting at $32.76 ($0.66/GB, 50GB, 30 days). HelloRoam plans support top-up and tethering. Across all providers, hotspot tethering and top-up support are available — check individual plans for eligibility.
The airport markup
Airport SIM kiosks at United Kingdom charge $10-25 for 10-30GB / 30 days for tourist data plans. EE and Vodafone and Three and Lebara operate the airport kiosks. Local prepaid SIMs are available for $10-20 for 10-20GB / 30 days — requiring a physical store visit and, in some cases, passport registration. An eSIM from $32.76 activates before you land and skips the queue.
Daily cost compared
United Kingdom eSIM pricing signals
6 of 6 plans for United Kingdom are trending down — prices have been falling across most providers. The current cheapest plan is HelloRoam at $0.66/GB ($32.76 for 50GB, 30 days). HelloRoam's 50GB plan is among those that decreased in price, now at $32.76.
Best plan for each trip length
Use-case picks for United Kingdom based on plan data: Weekend (2-3 days): HelloRoam 3GB at $7.10 (3GB, 30 days). Week trip (7 days): HelloRoam 5GB at $10.13 (5GB, 30 days). Two-week vacation: HelloRoam 10GB at $15.93 (10GB, 30 days). Digital nomad (30 days): HelloRoam 20GB at $28.49 (20GB, 30 days).
Data usage guide for United Kingdom
Travelers in United Kingdom typically use 1.5GB of mobile data per day. WiFi availability is excellent — free WiFi is common in hotels, cafes, and public spaces. Free WiFi in cafes, pubs, Tube stations, and most public spaces; eduroam in universities Peak travel season runs Jun-Aug. Summer June-August is peak; Christmas season busy in London For a 7-day trip, expect to need roughly 11GB. The 20GB plan from HelloRoam ($28.49, 20GB) covers that usage.
United Kingdom mobile networks
United Kingdom's primary carriers are EE and Vodafone UK and Three UK and O2 (Virgin Media). 5G coverage is widespread across major cities and most tourist areas. Median download speed is 180 Mbps. Three UK includes EU roaming at no extra cost — useful if combining UK with Europe trip. London Underground has 4G/5G coverage in most tunnels since 2024. Emergency number: 999/112.
Where to buy United Kingdom eSIM
What Is an eSIM for United Kingdom?
An eSIM for United Kingdom is a prepaid digital SIM card with no physical component. The cheapest United Kingdom eSIM costs $0.66/GB — up to 80% less than airport SIM counters. You purchase online, scan a QR code, and connect to local 4G/5G networks in under 2 minutes.
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