TOP 1
10 GB
5G
Find the best eSIM for London
We analyzed 6,598 live offers from 58 providers for London. Compare total cost, usable data, validity and network details, not marketing claims.
TOP 2
15 GB
5G not stated
TOP 3
1 GB
5G not stated
TOP 4
10 GB
5G not stated
€0.73median price / GB
€0.21lowest total price
58providers tracked
73%5G-ready plans
QUICK ANSWER / TRIP SCENARIOS
Best eSIM for London in 2026
Four concrete scenarios for London: a city break with maps and chat, one week of maps and social, two weeks of video and hotspot, and a month of laptop work. Open the catalog below to filter further.
City break
Maps & chat
~3 GB5–7 days
3 GB
5G not stated
1 week
Maps & social
~10 GB7–10 days
5 GB
5G
2 weeks
Video & hotspot
15 GB+12–16 days
Unlimited
5G
1 month
Work & hotspot
20 GB+25–35 days
Unlimited
4G / LTE
LIVE CATALOG / FILTERABLE
Compare 6,598 eSIM plans for your trip to London
Find the best prepaid eSIM for London. Sort by price, data or value and compare top travel providers side by side. 309 plans match the filters below.
Where do you need data?
Sort
Data
Duration
Provider
| # | Provider / plan | Data | Validity | Network | Coverage | Total | Price / GB | Actions |
|---|---|---|---|---|---|---|---|---|
| 1 |  | 5 GB | 30 days | 5G | | €0.40 | ||
| 2 |  | 5 GB | 15 days | 5G | | €0.43 | ||
| 3 |  | 5 GB | 30 days | 5G not stated | | €0.39 | ||
| 4 |  | 5 GB | 15 days | 5G | | €0.45 | ||
| 5 | | 5 GB | 30 days | 5G | | €0.46 | ||
| 6 | | 5 GB | 30 days | 5G | | €0.49 | ||
| 7 |  | 5 GB | 30 days | 5G | | €0.52 | ||
| 8 |  | 5 GB | 30 days | 5G not stated | | €3.10 | €0.62 | |
| 9 | | 5 GB | 20 days | 5G | | €0.58 | ||
| 10 |  | 5 GB | 15 days | 5G | | €0.58 | ||
| 11 | | 5 GB | 20 days | 5G | | €0.58 | ||
| 12 | | 5 GB | 30 days | 5G | | €0.59 | ||
| 13 |  | 5 GB | 15 days | 5G | | €3.60 | €0.72 | |
| 14 | | 500 MB/day | 15 days | 5G | | €0.44 | ||
| 15 |  | 5 GB | 30 days | 5G | | €0.66 | ||
| 16 | | 500 MB/day | 15 days | 5G | | €0.47 | ||
| 17 | | 5 GB | 30 days | 5G | | €4.10 | €0.82 | |
| 18 |  | 5 GB | 15 days | 5G | | €0.70 | ||
| 19 |  | 5 GB | 30 days | 5G not stated | | €0.74 | ||
| 20 | | 5 GB | 30 days | 5G not stated | | €0.74 |
1
Data5 GB
Validity30 days
Network5G
You pay€2.00
Coverage
2
Data5 GB
Validity15 days
Network5G
You pay€2.14
Coverage
3
Data5 GB
Validity30 days
Network5G not stated
You pay€1.94
Coverage
4
Data5 GB
Validity15 days
Network5G
You pay€2.26
Coverage
5
Data5 GB
Validity30 days
Network5G
You pay€2.32
Coverage
6
Data5 GB
Validity30 days
Network5G
You pay€2.46
Coverage
7
Data5 GB
Validity30 days
Network5G
You pay€2.62
Coverage
8
Data5 GB
Validity30 days
Network5G not stated
You pay€3.10
Coverage
9
Data5 GB
Validity20 days
Network5G
You pay€2.91
Coverage
10
Data5 GB
Validity15 days
Network5G
You pay€2.90
Coverage
11
Data5 GB
Validity20 days
Network5G
You pay€2.92
Coverage
12
Data5 GB
Validity30 days
Network5G
You pay€2.95
Coverage
13
Data5 GB
Validity15 days
Network5G
You pay€3.60
Coverage
14
Data500 MB/day
Validity15 days
Network5G
You pay€3.25
Coverage
15
Data5 GB
Validity30 days
Network5G
You pay€3.28
Coverage
16
Data500 MB/day
Validity15 days
Network5G
You pay€3.43
Coverage
17
Data5 GB
Validity30 days
Network5G
You pay€4.10
Coverage
18
Data5 GB
Validity15 days
Network5G
You pay€3.49
Coverage
19
Data5 GB
Validity30 days
Network5G not stated
You pay€3.71
Coverage
20
Data5 GB
Validity30 days
Network5G not stated
You pay€3.71
Coverage
Offer links may be affiliate links. We may earn a commission at no extra cost to you; commissions never change rankings. Disclosure
DATA SIGNALS / FULL VALUE
What one gigabyte really costs in London
Unlimited plans are kept out of €/GB math so the benchmark for London stays comparable.
Lowest effective €/GB among limited-data plans right now.
Median sits at €0.73/GB. Half of eligible plans land in this range.
73% 5G-ready · 66% hotspot · 27d avg validity
DESTINATION GUIDE
What actually matters for an eSIM in London
Practical notes for London — networks, usage and the mistakes that waste the first afternoon.
The UK hosts are EE, O2, Vodafone and Three. London, Manchester and Edinburgh are crowded with capacity; the Scottish Highlands, Cornwall lanes and Tube tunnels are where Three vs EE actually shows up. On current catalog labels, travel eSIMs for London most often cite EE, Vodafone, O2, Three.
Contactless, Citymapper and WhatsApp barely move the needle. The bill inflates with TikTok on the commuter train and hotspot in an Airbnb that still uses a 4G router.
Buy before Heathrow or a Stansted delay. Keep the home SIM for banking SMS; UK eSIMs are almost always data-only.
- Tube stations still drop data — download the TfL map or Citymapper offline.
- Ireland is not the UK: a Great Britain pack may exclude the Republic.
- If you need hotspot for work, filter that flag; some cheap UK SKUs disable tethering.
TOOLS
Check your phone and data need for London
Two checks before checkout: will the eSIM install, and how many gigabytes this trip actually needs.
HOST NETWORKS
Which eSIM providers use which networks in London
Travel eSIMs for London connect through local host operators, not their own towers. Below is the current 2026 catalog mapping: provider, host operator(s), and the radio labels those offers advertise. The host networks that appear most often are EE, Vodafone, O2. Providers with the clearest operator labels right now include iRoamly, Superalink, abesteSIM.
Each row groups one provider’s London plans by the host operator names found in the catalog. Counts show how often that pairing appears, not a coverage quality score.
| Provider | Avg €/GB | Host operators | Network | 5G |
|---|---|---|---|---|
 iRoamly97 plans sampled | €7.91 |
| 4G / LTE5G | 100% |
| Superalink124 plans sampled | €0.95 |
| 3G4G / LTE5G | 100% |
| abesteSIM87 plans sampled | €0.47 |
| 4G / LTE5G3G | 100% |
 JamboSim78 plans sampled | €3.66 |
| 5G4G / LTE | 77% |
 Roamify60 plans sampled | €0.55 |
| 5G4G / LTE | 100% |
| MicroEsim53 plans sampled | €0.73 |
| 4G / LTE5G3G | 100% |
| ASIMGO50 plans sampled | €0.65 |
| 4G / LTE5G3G | 100% |
 CocoRoam34 plans sampled | €0.86 |
| 4G / LTE5G | 100% |
| eSIMCard31 plans sampled | €0.88 |
| 2G3G4G / LTE5G | 100% |
| Airalo30 plans sampled | €2.28 |
| 5G4G / LTE | 80% |
iRoamly97 plans sampledAvg €/GB€7.91
5G plans100%
Host operators
- Three92 offers
- EE92 offers
- Vodafone92 offers
Network labels
4G / LTE5G
Superalink124 plans sampledAvg €/GB€0.95
5G plans100%
Host operators
- Vodafone124 offers
Network labels
3G4G / LTE5G
abesteSIM87 plans sampledAvg €/GB€0.47
5G plans100%
Host operators
- EE79 offers
- Three8 offers
Network labels
4G / LTE5G3G
JamboSim78 plans sampledAvg €/GB€3.66
5G plans77%
Host operators
- EE26 offers
- O222 offers
- Three18 offers
Network labels
5G4G / LTE
Roamify60 plans sampledAvg €/GB€0.55
5G plans100%
Host operators
- O260 offers
Network labels
5G4G / LTE
MicroEsim53 plans sampledAvg €/GB€0.73
5G plans100%
Host operators
- EE47 offers
- Three5 offers
- Vodafone1 offers
Network labels
4G / LTE5G3G
ASIMGO50 plans sampledAvg €/GB€0.65
5G plans100%
Host operators
- EE46 offers
- Three4 offers
Network labels
4G / LTE5G3G
CocoRoam34 plans sampledAvg €/GB€0.86
5G plans100%
Host operators
- EE34 offers
Network labels
4G / LTE5G
eSIMCard31 plans sampledAvg €/GB€0.88
5G plans100%
Host operators
- EE31 offers
Network labels
2G3G4G / LTE5G
Airalo30 plans sampledAvg €/GB€2.28
5G plans80%
Host operators
- EE30 offers
Network labels
5G4G / LTE
Most common host operators in London
- EE455 labeled plans
- Vodafone275 labeled plans
- O2212 labeled plans
- Three136 labeled plans
PROVIDER COMPARISON
eSIM provider comparison for London
Every provider in the London catalog, ranked by average €/GB. Compare entry price, 5G share, hotspot and live promo codes, then open a review for setup notes.
ProviderFromAvg / GB5GHotspotPromo
Sim Local17 plans€11.50€0.44Not statedNot statedESIMP10−10%abesteSIM87 plans€0.37€0.47YesYesESIMG−10%
eSIMZON11 plans€1.83€0.49NoYesESIMG−10%Roamify60 plans€1.97€0.55YesNot statedESIMP5−5%Horizon13 plans€0.21€0.60YesYesESIMG−10%GoMoWorld4 plans€3.99€0.63Not statedNot statedESIMG−10%ASIMGO50 plans€0.50€0.65YesYesESIMG−10%
Airhub18 plans€2.61€0.67Not statedNot statedNo codeRedteaGO8 plans€0.64€0.70Not statedNot statedESIMP−10%MicroEsim53 plans€0.77€0.73YesYesNo code
AdventureSIMs8 plans€1.21€0.81YesYesESIMP−10%Voilà6 plans€1.10€0.86Not statedNot statedESIMG−5%
AeroSims123 plans€3.58€0.86Not statedNot statedNo codeCocoRoam34 plans€2.39€0.86YesYesNo code
Voye Global16 plans€8.00€0.87Not statedNot statedESIMG−15%eSIMCard31 plans€1.28€0.88YesYesESIMG−15%
aloSIM1 plans€46.00€0.92YesYesESIMG−15%
eSIMForever8 plans€1.83€0.92YesNot statedNo code
Simbye12 plans€1.95€0.93Not statedYesESIMG−15%Superalink124 plans€0.54€0.95YesYesESIMP−15%
Nada Nada8 plans€1.83€1.05NoNot statedESIMG−10%
eSIMGlobe18 plans€2.66€1.16Not statedYesESIMG−10%
Flyesim8 plans€1.69€1.18YesYesNo code
VoyaSIM18 plans€0.46€1.22YesNot statedESIMP−20%
eSIMFox10 plans€1.99€1.27YesYesNo codeConnectMeGuru17 plans€0.78€1.27YesYesESIMG−10%
SimOptions15 plans€4.50€1.32Not statedNot statedESIMP−10%
MySIM2436 plans€3.50€1.33Not statedNot statedESIMG−10%
Orange Travel28 plans€3.99€1.37Not statedYesESIMP−5%
LightSim11 plans€2.71€1.41YesYesESIMDEALS10−10%Nomad25 plans€0.61€1.46Not statedNot statedESIMPNOMAD−20%
Yesim36 plans€0.45€1.50Not statedNot statedESIMG−15%
Ezy eSIM7 plans€2.75€1.50YesYesESIMP−10%
GigSky40 plans€2.12€1.66Not statedNot statedESIMP−15%
Ohayu12 plans€6.99€1.69YesYes
ESIMG−10%
BambooSIM35 plans€2.98€1.70YesYesESIMG−10%
Roamless27 plans€1.79€1.86YesYesESIMG−15%
eSIMo5 plans€3.58€2.09YesNot statedESIMG−20%SparkRoam23 plans€1.22€2.17Not statedYesNo codeSaily11 plans€3.74€2.26YesNot statedESIMG−10%Airalo30 plans€4.00€2.28Not statedNot statedESIMP15−15%
eSIM Flare56 plans€1.83€2.31Not statedYesESIMP−10%
TEXTReSIM5 plans€2.50€2.37Not statedNot statedNo code
Eskimo14 plans€3.58€2.62YesYesESIMPTRIALGiftAlpineSIM24 plans€0.25€2.93YesYesESIMG−10%
MoviSIM19 plans€2.74€3.06YesNot statedESIMG−15%
LinkeSIM1 plans€3.58€3.58YesYesNo codeJamboSim78 plans€2.99€3.66Not statedYesESIMG−15%
Always Mobile14 plans€2.95€4.31YesYesNo codeeSIM4Travel73 plans€0.77€4.74Not statedNot statedESIMP−10%
UPeSIM6 plans€1.99€5.70YesYesNo codeiRoamly97 plans€0.55€7.91YesNot statedNo code
Esimi20 plans€11.37€9.52Not statedNot statedESIMP−15%
Esimatic26 plans€3.20€14.50YesYesESIMP5−5%Holafly6 plans€11.37—NoYesSIMP−5%SETUP GUIDE
How to install an eSIM for London
Most travelers can install before departure over Wi-Fi, then activate on arrival. Keep your primary SIM available until the travel eSIM is online.
- 01Check device compatibility
Confirm your phone is carrier-unlocked and supports eSIM. Recent iPhone, Google Pixel and many Samsung flagships do.
- 02Buy and receive the QR or install link
Choose a plan for London, complete checkout with the provider, and save the QR code or activation email offline.
- 03Install over stable Wi-Fi
Scan the QR in mobile settings or follow the provider install link before you fly when possible.
- 04Enable data roaming for the eSIM line
On arrival, select the travel eSIM as your data line, enable data roaming for that line, and keep the primary number for calls or 2FA if needed.
Installation steps can vary by provider app. If setup fails, open the provider guide linked from the offer page before contacting support.
FAQ / TRAVELERS ASK
London eSIM FAQ
Straight answers built from the live catalog and practical setup guidance for London.
How much does an eSIM for London cost in 2026?
In the current 2026 snapshot for London, the lowest total price tracked is €0.21 across 6,598 plans from 58 providers. The median value on limited-data plans is €0.73 per GB.
What is the best eSIM for London right now?
There is no single winner for every trip in London. Current catalog leaders by plan count include Superalink, AeroSims, iRoamly. Start with the top ranked plans on this page, then filter by data size, validity and 5G or hotspot needs.
Which local networks do travel eSIMs use in London?
Plans sampled for London most often mention host operators such as EE, Vodafone, O2. The exact partner network still depends on the provider and plan you buy, so confirm the operator label before checkout.
Do I need unlimited data in London?
Unlimited can help for heavy streaming or long hotspot sessions. This market currently lists 783 unlimited-style plans—use the Best unlimited pick above, then confirm fair-use and speed rules. We still keep unlimited out of the median €/GB benchmark.
Are travel eSIMs in London 5G ready?
73% of tracked plans for London advertise 5G support. Real-world access still depends on your handset, local partner network and the provider policy.
Can I use hotspot with an eSIM in London?
66% of listed plans mention hotspot or tethering. If sharing data with a laptop is critical, filter for hotspot before checkout and re-check the provider terms.
How long do eSIM plans for London usually last?
Average validity across tracked plans for London is 27 days. Short 7-day packs suit weekends; longer 15 to 30 day plans are better for extended stays.
When should I install my eSIM for London?
Install over Wi-Fi before you travel to London when the provider allows it, then enable the line on arrival. Keep your primary SIM active until the travel eSIM shows a stable data connection.
Why choose an eSIM for a trip to London?
A travel eSIM avoids expensive home-carrier roaming and the airport SIM counter. Install it before you fly, keep your primary number for calls and 2FA, and connect as soon as you land. The 2026 catalog currently lists 6,598 plans from 58 providers for London.
Why use our eSIM comparator for London?
eSIM Giga ranks the 6,598 London offers by total price and effective €/GB, not paid placement. Filter by data, validity, 5G and hotspot, then check out with the provider at the listed price. Unlimited plans stay out of the median so the comparison stays honest.
How can I get a free eSIM in London?
A truly free, usable eSIM in London is rare: trial packs are usually tiny or time-limited. The realistic options are a verified promo code or the cheapest plan in this comparison, currently from €0.21. Treat “free” offers with throttled speeds, token data or a hidden subscription with caution.
Can I get a local phone number with an eSIM in London?
Most travel eSIMs for London are data-only and do not include a local number. Keep your primary line on for calls, SMS and 2FA. A few providers sell a virtual number or voice minutes—check the plan details before checkout if you need one.
How do I buy an eSIM for London?
Compare plans on this page, pick the data and validity that match your trip, then complete checkout on the provider site. Save the QR code, install over Wi-Fi before you travel, and activate on arrival. The buying guide above covers plan choice; the setup guide covers the technical steps.
METHODOLOGY / REPRODUCIBLE
How eSIM Giga ranks this market
- Collect. We normalize live plan prices, data, validity and feature fields.
- Compare. Limited-data plans are measured by total cost and effective €/GB.
- Separate. Unlimited plans never distort the median price per GB benchmark.
- Refresh. The page is regenerated daily from the latest catalog snapshot.
Commercial relationships can affect outbound links, never the formula or the underlying price fields. Read the full editorial methodology, explore more markets in the destinations directory or open provider reviews.
NEARBY
Destinations nearby
Planning a multi-stop trip? Compare nearby markets in Europe, or open the full destinations directory.
#01
Albania
FROM€0.17/ GB
Compare plans
#02
Andorra
FROM€0.30/ GB
Compare plans
#03
Austria
FROM€0.20/ GB
Compare plans
#04
Belarus
FROM€0.33/ GB
Compare plans
#05
Belgium
FROM€0.31/ GB
Compare plans
#06
Bosnia and Herzegovina
FROM€0.36/ GB
Compare plans
#07
Bulgaria
FROM€0.31/ GB
Compare plans
#08
Croatia
FROM€0.31/ GB
Compare plans
AUTHOR / EDITOR
Who reviews these plans
I built eSIM Giga so you can pick a travel plan from live prices and usable gigabytes, not from an “unlimited” slogan.