Best eSIM for United Kingdom
Instantly compare and calculate the best local network deals for your trip to United Kingdom.
Find the perfect plan for United Kingdom
Staying connected in United Kingdom
What the coverage maps do not tell you, and what you will actually use the data for.
Where the signal actually drops
EE, Vodafone, Three and VirginMediaO2 cover populated Britain thoroughly, and London Underground now has mobile coverage across most of the network rather than only in stations. The weak spots are rural and upland: the Scottish Highlands and islands, mid-Wales, the North York Moors, Dartmoor and Exmoor. Rural rail lines are notoriously patchy, and the west coast main line loses signal repeatedly.
What you will use your phone for here
Contactless everything, including tapping in and out on London transport with a phone, which makes a dead battery a genuine problem at a barrier. Otherwise usage is unremarkable: maps, rail apps for live disruption, and restaurant bookings.
Before you go
The classic mistake is assuming Highlands coverage matches the rest of the country. If you are driving the North Coast 500 or heading to the islands, treat connectivity as unreliable and plan accordingly.
How much data you will actually need
Low. Short distances, widespread WiFi in cafes and hotels, and no translation overhead for English speakers.
United Kingdom eSIM plans compared
| Provider | Data | Validity | Price (USD) | Hotspot | Networks | Buy |
|---|---|---|---|---|---|---|
| aloSIM | 1 GB | 1 days | $3.50 | ✅ | Multiple networks | View deal |
| Airalo | 1 GB | 3 days | $4.00 | ✅ | Multiple networks | View deal |
| Saily | 1 GB | 7 days | $4.49 | ✅ | Multiple networks | View deal |
| Nomad | 1 GB | 7 days | $4.50 | ✅ | Multiple networks | View deal |
| aloSIM | 5 GB | 3 days | $6.00 | ✅ | Multiple networks | View deal |
| Ubigi | 10 GB | 7 days | $9.00 | ✅ | Multiple networks | View deal |
| Maya Mobile | Unlimited (fast up to 5GB/day) | 3 days | $9.99 | ✅ | Multiple networks | View deal |
| Airalo | Unlimited (fast up to 3GB/day) | 3 days | $10.00 | ✅ | Multiple networks | View deal |
| Nomad | Unlimited (fast up to 2GB/day) | 3 days | $11.00 | ✅ | Multiple networks | View deal |
| Holafly | Unlimited | 3 days | $11.90 | ✅ | EE, VirginMediaO2, Vodafone UK, Three UK | View deal |
| Nomad | 5 GB | 30 days | $12.00 | ✅ | Multiple networks | View deal |
| Saily | 5 GB | 30 days | $12.99 | ✅ | Multiple networks | View deal |
| aloSIM | 10 GB | 7 days | $13.50 | ✅ | Multiple networks | View deal |
| Saily | 10 GB | 30 days | $18.99 | ✅ | Multiple networks | View deal |
| Maya Mobile | Unlimited (fast up to 5GB/day) | 7 days | $19.99 | ✅ | Multiple networks | View deal |
| Nomad | 20 GB | 30 days | $25.00 | ✅ | Multiple networks | View deal |
| Holafly | Unlimited | 7 days | $27.50 | ✅ | EE, VirginMediaO2, Vodafone UK, Three UK | View deal |
| Maya Mobile | Unlimited (fast up to 5GB/day) | 14 days | $27.99 | ✅ | Multiple networks | View deal |
| Saily | Unlimited (fast up to 5GB/day) | 7 days | $28.99 | ✅ | Multiple networks | View deal |
| Ubigi | 50 GB | 30 days | $32.00 | ✅ | Multiple networks | View deal |
| Airalo | 50 GB | 30 days | $39.00 | ✅ | Multiple networks | View deal |
| Maya Mobile | Unlimited (fast up to 5GB/day) | 30 days | $49.99 | ✅ | Multiple networks | View deal |
| aloSIM | 50 GB | 30 days | $50.00 | ✅ | Multiple networks | View deal |
| Holafly | Unlimited | 15 days | $50.50 | ✅ | EE, VirginMediaO2, Vodafone UK, Three UK | View deal |
| Holafly | Unlimited | 30 days | $73.90 | ✅ | EE, VirginMediaO2, Vodafone UK, Three UK | View deal |
Why use an eSIM in United Kingdom?
Using an eSIM is the easiest way to get mobile data when you land. Avoid expensive roaming charges and the hassle of finding a local SIM card. Simply buy online, scan a QR code, and you're connected.
How we picked the best plans
We analyze plans based on price per GB, network quality, and hotspot capabilities. Our calculator above helps you find the plan that matches your exact travel dates and data needs, ensuring you don't overpay for data you won't use.
United Kingdom eSIM FAQ
What is the cheapest eSIM for United Kingdom?
Right now the cheapest plan we track is Airalo at $4.00 for 1GB over 3 days.
Are there unlimited data eSIMs for United Kingdom?
Yes. Maya Mobile ($9.99 / 3 days), Airalo ($10.00 / 3 days), Nomad ($11.00 / 3 days), Holafly ($11.90 / 3 days), Maya Mobile ($19.99 / 7 days), Holafly ($27.50 / 7 days), Maya Mobile ($27.99 / 14 days), Saily ($28.99 / 7 days), Maya Mobile ($49.99 / 30 days), Holafly ($50.50 / 15 days), Holafly ($73.90 / 30 days) offer unlimited plans here. Check the fair-use policy: speeds are often reduced after a daily high-speed allowance.
Can I share my eSIM data via hotspot in United Kingdom?
25 of the 25 plans we track allow hotspot sharing, including aloSIM and Airalo and Saily and Nomad and Ubigi and Maya Mobile and Holafly.
Which networks will my eSIM use in United Kingdom?
The plans we track connect to Multiple networks, EE, VirginMediaO2, Vodafone UK, Three UK.
Where will I lose signal in United Kingdom?
EE, Vodafone, Three and VirginMediaO2 cover populated Britain thoroughly, and London Underground now has mobile coverage across most of the network rather than only in stations. The weak spots are rural and upland: the Scottish Highlands and islands, mid-Wales, the North York Moors, Dartmoor and Exmoor. Rural rail lines are notoriously patchy, and the west coast main line loses signal repeatedly.
How much data do I need for United Kingdom?
Low. Short distances, widespread WiFi in cafes and hotels, and no translation overhead for English speakers.