The United Kingdom, with its iconic capital London, Scottish castles, warm pubs, and unique culture, attracts millions of visitors every year. Since Brexit, free roaming is no longer guaranteed for European mobile plans, making eSIM particularly useful for your trips across the Channel.
After analyzing over 100 plans, here's our selection of the best eSIMs for the UK in 2026.
Quick Summary: Top 5 Best eSIMs for the UK in 2026
<BlogSummaryTable title="Best eSIMs UK 2026" countryCode="GB" countrySlug="united-kingdom" plans={[ { rank: 1, providerId: "gomoworld", data: "10 GB", duration: "30 days", price: "$7", highlight: "Best value", promoCode: "ESIMP", }, { rank: 2, providerId: "linkesim", data: "10 GB", duration: "30 days", price: "$5", highlight: "Lowest price", }, { rank: 3, providerId: "airalo", data: "5 GB", duration: "30 days", price: "$9", highlight: "Reliable + Multi-network", promoCode: "ESIMP15", }, { rank: 4, providerId: "holafly", data: "Unlimited", duration: "5 days", price: "$19", highlight: "Unlimited data", }, { rank: 5, providerId: "saily", data: "3 GB", duration: "30 days", price: "$7", highlight: "Simple interface + VPN", promoCode: "ESIMP", }, ]} />
Why Get an eSIM for the UK?
Top 5 Best eSIMs for the UK
1. GoMoWorld - Best Value for Money
Our rating: 9/10
GoMoWorld dominates with ultra-competitive prices for the UK. With the code ESIMP offering 10% off, it's our #1 choice.
Pros:
- Promo code ESIMP: -10%
- Very attractive prices
- EE/Three network (excellent UK coverage)
- 5G compatible
- Modern interface
Cons:
- Lesser-known brand
- English support
<BlogProviderPlans providerId="gomoworld" title="GoMoWorld UK Plans" promoCode="ESIMP" promoDiscount="-10%" plans={[ { data: "5 GB", duration: "15 days", price: "$4.50", priceWithPromo: "$4.05", }, { data: "10 GB", duration: "30 days", price: "$7.80", priceWithPromo: "$7.02", }, { data: "20 GB", duration: "30 days", price: "$12", priceWithPromo: "$10.80", }, ]} />
Verdict: Our #1 recommendation with code ESIMP.
2. LinkeSIM - Lowest Price
Our rating: 8.5/10
LinkeSIM offers the lowest prices with plans starting at $2.10.
Pros:
- Unbeatable prices
- Three UK network
- 4G/5G compatible
- Instant activation
Cons:
- Less modern interface
- Basic support
<BlogProviderPlans providerId="linkesim" title="LinkeSIM UK Plans" plans={[ { data: "3 GB", duration: "7 days", price: "$2.10" }, { data: "5 GB", duration: "15 days", price: "$3.10" }, { data: "10 GB", duration: "30 days", price: "$5" }, ]} />
Verdict: Cheapest on the market for the UK.
3. Airalo - Most Reliable
Our rating: 8.5/10
Airalo offers proven reliability with multi-network connection in the UK. With the code ESIMP15, get 15% off.
Pros:
- Multi-network (EE, Three, Vodafone)
- 5G compatible
- Intuitive app
- Promo code ESIMP15: -15%
Cons:
- Higher base prices
<BlogProviderPlans providerId="airalo" title="Airalo UK Plans" promoCode="ESIMP15" promoDiscount="-15%" plans={[ { data: "1 GB", duration: "7 days", price: "$5", priceWithPromo: "$4.25" }, { data: "3 GB", duration: "30 days", price: "$8.70", priceWithPromo: "$7.40", }, { data: "5 GB", duration: "30 days", price: "$11", priceWithPromo: "$9.35", }, ]} />
Verdict: The safe choice for reliability.
4. Holafly - Unlimited Data
Our rating: 8/10
Holafly offers unlimited data plans for the UK.
Pros:
- Unlimited data
- Hotspot sharing
- Multilingual support
Cons:
- Higher prices
- Minimum 5 days
<BlogProviderPlans providerId="holafly" title="Holafly UK Plans (Unlimited)" plans={[ { data: "Unlimited", duration: "5 days", price: "$19" }, { data: "Unlimited", duration: "10 days", price: "$34" }, { data: "Unlimited", duration: "15 days", price: "$47" }, ]} />
Verdict: Perfect for heavy users.
5. Saily - Simplest Interface
Our rating: 7.5/10
Saily offers simplicity and security with built-in VPN. Code ESIMP: 5% off.
Pros:
- Ultra-simple interface
- Built-in NordVPN
- Promo code ESIMP: -5%
Cons:
- Higher prices
- Fewer plans
<BlogProviderPlans providerId="saily" title="Saily UK Plans" promoCode="ESIMP" promoDiscount="-5%" plans={[ { data: "1 GB", duration: "7 days", price: "$4.29", priceWithPromo: "$4.08", }, { data: "3 GB", duration: "30 days", price: "$7.49", priceWithPromo: "$7.12", }, ]} />
Verdict: Ideal for beginners.
Which eSIM to Choose Based on Your Travel Profile?
How to Activate Your eSIM for the UK?
All eSIM Promo Codes for the UK
<BlogPromoTable title="Verified Promo Codes - February 2026" countryCode="GB" countrySlug="united-kingdom" promos={[ { providerId: "airalo", code: "ESIMP15", discount: "-15%", validity: "New customers", }, { providerId: "airalo", code: "ESIMP10", discount: "-10%", validity: "Existing customers", }, { providerId: "gomoworld", code: "ESIMP", discount: "-10%", validity: "All plans", }, { providerId: "saily", code: "ESIMP", discount: "-5%", validity: "All plans", }, { providerId: "ubigi", code: "ESIMP", discount: "-10%", validity: "First purchase", }, ]} />
Network Coverage in the UK
The UK has excellent mobile infrastructure:
EE (Everything Everywhere)
- Coverage: Best in the UK (99%)
- 5G: Very extensive in major cities
- Quality: Excellent speeds
Three UK
- Coverage: Very good
- 5G: Expanding rapidly
- Used by: LinkeSIM
Vodafone UK
- Coverage: Excellent
- 5G: Available in major cities
FAQ: Common Questions
Is roaming free in the UK from the EU?
Since Brexit, it's no longer guaranteed. Some EU plans include the UK, others don't. Check with your provider before leaving.
How much data for the UK?
- London Weekend: 2-3 GB
- 1-2 weeks: 5-10 GB
- Long stay: 10 GB+ or unlimited
Does eSIM work in Scotland and Wales?
Yes, coverage is identical throughout the United Kingdom (England, Scotland, Wales, Northern Ireland).
Can I use my eSIM in the Channel Tunnel?
The UK eSIM works as soon as you're on British territory. In the tunnel, coverage may be intermittent.
Conclusion
For 2026, our ranking of best eSIMs for the UK:
- GoMoWorld - Best value (code ESIMP -10%)
- LinkeSIM - Unbeatable prices
- Airalo - Most reliable (code ESIMP15)
- Holafly - Unlimited data
- Saily - For beginners (code ESIMP -5%)
Last updated: February 2026. Prices verified on 02/04/2026.
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.