What is the best eSIM for London in 2026?

The best eSIMs for London are Holafly (unlimited data), Saily (best value), and Airalo (wide range of plans). Compare offers on eSIM Planet to find the one that suits your needs.

How do I activate an eSIM for London?

Activating an eSIM for London is simple: 1) Purchase your plan online, 2) Receive a QR code by email, 3) Scan the QR code in your phone settings, 4) Activate the plan upon arrival in London. The whole process takes less than 5 minutes.

How much does an eSIM for London cost?

eSIM prices for London vary based on data amount and duration. Plans start from $0.42. Unlimited plans typically cost between €20-50 depending on duration.

Is my phone compatible with an eSIM for London?

Most recent smartphones support eSIM: iPhone (XS and newer), Samsung Galaxy (S20 and newer), Google Pixel (3 and newer), and many other models. Check your phone settings to see if the eSIM option is available.

Can I keep my home number with a London eSIM?

Yes! With an eSIM, you keep your physical SIM card and home number. The eSIM works alongside it for mobile data. You can receive calls and SMS on your regular number while using the eSIM for internet.

How much data should I choose for London?

It depends on your usage: for light use (emails, GPS, messaging), 1-3GB is enough. For moderate use with social media and photos, choose 5-10GB. For video streaming or work, go for an unlimited plan.

Compare the best travel eSIM plans for London in 2026

See all unlimited plans See London discounts

Which eSIM to choose for traveling to London in 2026? Here is our comparison of the best plans to stay connected at a low cost as soon as you arrive at Heathrow, Gatwick or Stansted. Discover our selection with promo codes and data plans.

London is a must-see metropolis: museums, theatres, parks and nightlife. To get around, book online and stay in touch, a London eSIM (or UK eSIM) is ideal. Avoid roaming and be connected as soon as you land.

Which eSIM fits your trip to London?

Three common travel styles, three focused picks. Enter the partner promo code at checkout, then fine-tune plans in the comparison table below.

Short stay or city break
A few days on the ground: maps, messaging and socials.
Recommended minimum: 5 GB
For short stays, compare data, duration and price across providers: enough for maps, messaging and socials without overpaying.
Up to 3 plans that match this travel style
- Saily
  5 GB·30 days
  $13.11$11.80
  Coverage:
  -10%
- GoMoWorld
  15 GB·30 days
  $11.98$10.78
  Coverage:
  -10%
- GigSky
  5 GB·30 days
  $19.61$16.67
  Coverage:
  -15%
Family & hotspot sharing
Several phones, mixed usage, you want peace of mind.
Recommended minimum: 20 GB
For families, favor large buckets or unlimited for the whole trip, then double-check hotspot rules and fair-use policies.
Up to 3 plans that match this travel style
- Saily
  Unlimited·15 days
  $49.44$44.50
  Coverage:
  -10%
- GoMoWorld
  25 GB·30 days
  $21.79$19.61
  Coverage:
  -10%
- GigSky
  Unlimited·7 days
  $30.51$25.93
  Coverage:
  -15%
Remote work & digital nomads
Video calls, large files, sustained mobile usage.
Recommended minimum: 30 GB
For remote work, aim for a comfortable allowance (often 30+ GB) or unlimited, and validate network coverage and stability for your destination.
Up to 3 plans that match this travel style
- Saily
  Unlimited·15 days
  $49.44$44.50
  Coverage:
  -10%
- GoMoWorld
  50 GB·30 days
  $21.79$19.61
  Coverage:
  -10%
- GigSky
  Unlimited·21 days
  $61.57$52.34
  Coverage:
  -15%

Not sure which eSIM plan to choose for London? We'll hand-pick the best ones just for you

Personalised selection with promo codes & direct links, then reminders before you leave

Compare the best esim plans for London in 2026

1000 plans found · Last update: April 22, 2026

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#	Plan	Data	Duration	Price/GB	Code	Price
1	30 days - 10GB5G Saily Coverage:	10.00GB	30 days	$1.82	-10%	$18.16$20.18
2	United Kingdom GoMoWorld Coverage:	15.00GB	30 days	$0.72	-10%	$10.78$11.98
3	United Kingdom – 7 jours GigSky3 Coverage:	1.00GB	7 days	$5.55	-15%	$5.55$6.53
4	30 days - 3GB5G eSIMoeSIMo Coverage:	3.00GB	30 days	$1.84	-20%	$5.52$6.90
5	7 jours - Data illimitée Holafly Coverage:	Unlimited	7 days	∞	-5%	$27.85$29.32
6	Europe 7 days 3GB Voyeglobal Coverage:	3.00GB	7 days	$2.33	-20%	$6.98$8.72
7	United Kingdom 3 GB for 15 days5G LinkeSIMVodafone Coverage:	3.00GB	15 days	$0.83	-	$2.48
8	United Kingdom – 7 jours GigSky3 Coverage:	0.49GB	7 days	$0.00	-15%	$0.00
9	Uk Forfait eSIM prépayée - 2Go/mois \| Ubigi Ubigi Coverage:	24.00GB	360 days	$1.19	-10%	$28.45$31.61
10	United Kingdom 50GB 180 Days5G AdventureSIMsVodafone Coverage:	50.00GB	180 days	$0.68	-10%	$33.88$37.65
11	United Kingdom RedteaGO Coverage:	50.00GB	180 days	$0.72	-5%	$36.00$37.90
12	Europe Plus RedteaGO Coverage:	50.00GB	180 days	$0.76	-5%	$37.91$39.90
13	Europe (37 countries) RedteaGO Coverage:	50.00GB	180 days	$0.76	-5%	$38.00$40.00
14	United Kingdom 50GB 180Days Esimflare Coverage:	50.00GB	180 days	$0.76	-10%	$38.16$42.40
15	300 GB - 30 Days5G RoamifyO2 Coverage:	300.00GB	30 days	$0.16	-5%	$47.50$50.00

30 days - 10GB

Saily

Coverage:

Data

10.00GB

Duration

30 days

Price/GB

$1.82

Code-10% With discount

$18.16

$20.18

United Kingdom

GoMoWorld

Coverage:

Data

15.00GB

Duration

30 days

Price/GB

$0.72

Code-10% With discount

$10.78

$11.98

United Kingdom – 7 jours

GigSky · 3

Coverage:

Data

1.00GB

Duration

7 days

Price/GB

$5.55

Code-15% With discount

$5.55

$6.53

30 days - 3GB

eSIMo · eSIMo

Coverage:

Data

3.00GB

Duration

30 days

Price/GB

$1.84

Code-20% With discount

$5.52

$6.90

7 jours - Data illimitée

Holafly

Coverage:

Data

Unlimited

Duration

7 days

Price/GB

∞

Code-5% With discount

$27.85

$29.32

Europe 7 days 3GB

Voyeglobal

Coverage:

Data

3.00GB

Duration

7 days

Price/GB

$2.33

Code-20% With discount

$6.98

$8.72

United Kingdom 3 GB for 15 days

LinkeSIM · Vodafone

Coverage:

Data

3.00GB

Duration

15 days

Price/GB

$0.83

$2.48

United Kingdom – 7 jours

GigSky · 3

Coverage:

Data

0.49GB

Duration

7 days

Price/GB

$0.00

Code-15% With discount

$0.00

Uk Forfait eSIM prépayée - 2Go/mois | Ubigi

Ubigi

Coverage:

Data

24.00GB

Duration

360 days

Price/GB

$1.19

Code-10% With discount

$28.45

$31.61

#10

United Kingdom 50GB 180 Days

AdventureSIMs · Vodafone

Coverage:

Data

50.00GB

Duration

180 days

Price/GB

$0.68

Code-10% With discount

$33.88

$37.65

#11

United Kingdom

RedteaGO

Coverage:

Data

50.00GB

Duration

180 days

Price/GB

$0.72

Code-5% With discount

$36.00

$37.90

#12

Europe Plus

RedteaGO

Coverage:

Data

50.00GB

Duration

180 days

Price/GB

$0.76

Code-5% With discount

$37.91

$39.90

#13

Europe (37 countries)

RedteaGO

Coverage:

Data

50.00GB

Duration

180 days

Price/GB

$0.76

Code-5% With discount

$38.00

$40.00

#14

United Kingdom 50GB 180Days

Esimflare

Coverage:

Data

50.00GB

Duration

180 days

Price/GB

$0.76

Code-10% With discount

$38.16

$42.40

#15

300 GB - 30 Days

Roamify · O2

Coverage:

Data

300.00GB

Duration

30 days

Price/GB

$0.16

Code-5% With discount

$47.50

$50.00

Best eSIM for London 2026: Comparison and Reviews

Planning a trip to London? Discover our complete comparison of the best eSIMs for London in 2026. We've analyzed all available offers to help you choose the best eSIM at the best price.

Why choose an eSIM for London?

Using an eSIM to travel to London offers many advantages. Unlike physical SIM cards, the eSIM can be activated before your departure, allowing you to be connected as soon as you arrive. No need to look for a distributor or deal with language issues. eSIMs also offer optimal coverage throughout London, with prices often more advantageous than international roaming.

How to choose the best eSIM for London?

To choose the best eSIM for London, several criteria should be considered: the amount of data you need, the duration of your stay, network coverage, and of course the price. Our comparator allows you to filter offers according to these criteria and compare prices in real-time.

Which operators offer eSIMs for London?

The main international eSIM operators offer plans for London, including Holafly, Airalo, Saily, and Nomad. Each operator has its advantages: some offer unlimited plans, others offer very competitive prices for limited data.

In conclusion, choosing the best eSIM for London depends on your specific needs. Our comparator allows you to quickly find the offer that best matches your traveler profile. Compare prices, durations, and data amounts to make the best choice.

Written and reviewed by

Valentin FourierDigital Nomad

Developer and digital nomad, I lived between Canada and the United States before continuing to explore the world. After struggling with internet connectivity abroad one too many times, I created eSIM Planet to compare plans clearly and honestly. Every article is carefully written and reviewed to save you time and money.

Last updated : April 2026