
Buying a local prepaid SIM card is a great way to avoid high roaming charges when travelling. London Heathrow Airport offers several options for purchasing a prepaid SIM card, with shops available in the baggage claim areas and arrival halls of all terminals. While SIM cards purchased at the airport may be more expensive than those found in phone stores in London's city centre, they can be a convenient option for travellers who want to stay connected as soon as they land.
| Characteristics | Values |
|---|---|
| Can I buy a SIM card in London Airport? | Yes, you can buy a SIM card at London Heathrow Airport. |
| Available shops | Sim Local, Carphone Warehouse, EE |
| Available plans | Three UK prepaid SIM card: £20 ($24 USD) with 100 GB data and unlimited calls/SMS in the UK; Vodafone: £30 ($37 USD) with 20 GB data, 250 mins; EE: £15 ($18.50 USD) with 5 GB data, 500 mins, unlimited text |
| eSIMs | Sim Local: £17.50 ($21.50 USD) with 100 GB data; Jetpac: £9 ($11 USD) with 10 GB data |
| Tips | Buying a SIM card at the airport is convenient, but it may be more expensive than buying one in London city center. eSIMs are a cheaper alternative to physical SIM cards and can be purchased online before arrival. |
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What You'll Learn

Sim cards are available at all terminals
Yes, you can buy a SIM card at London Heathrow Airport. All terminals have the same SIM card shops and facilities in place for tourists to buy a prepaid SIM card. There are shops in the baggage claim areas and arrival halls of all terminals.
Sim Local is a shop that specializes in selling tourist SIM cards. They will install the SIM card for you and ensure that you walk out with a working data connection. Their SIM cards cost around £5 GBP or $6 USD. They also have an online eSIM store.
Another option is to buy a Three (3) UK prepaid SIM card. Three offers a prepaid SIM card deal for £20 GBP ($24 USD) with 100 GB of data and unlimited calls/SMS in the UK.
It is worth noting that tourist SIM cards at London Heathrow Airport are more expensive than SIM cards in phone stores in London's city center. If you are travelling to other countries in Europe after visiting London, it might be better to look into international SIM cards or eSIMs, as UK prepaid SIM cards won't allow unrestricted free EU data roaming.
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Sim Local offers installation services
Yes, you can buy a SIM card at London Heathrow Airport. There are several options for purchasing a prepaid SIM card at the airport, and all terminals have the same shops and facilities in place for tourists to buy a prepaid SIM card.
Sim Local is a company that specialises in selling tourist SIM cards and offers installation services. They have shops in the baggage claim areas and arrival halls of all terminals at London Heathrow Airport. Sim Local offers a full service, installing the SIM card for you and ensuring that you walk out with a working data connection on your phone. This service costs around £5 GBP or $6 USD, and all prices are already inclusive of this service fee.
Sim Local also has an online eSIM store, where you can order an eSIM for the UK with 100GB of data for $25 USD. eSIMs can be installed by following a few simple steps on your phone, without the need for any physical SIM card swapping. The fastest way to install an eSIM from Sim Local is through their app, where you can download a plan and get online in just a couple of minutes.
While buying a local prepaid SIM card at the airport is convenient, it is worth noting that tourist SIM cards at London Heathrow Airport tend to be more expensive than SIM cards purchased in phone stores in London's city centre.
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eSIMs are a cheaper alternative
Yes, you can buy a SIM card at London Heathrow Airport. There are several options for purchasing a prepaid SIM card at the airport, and all terminals have the same SIM card shops and facilities. However, you will pay the tourist price, which is more expensive than SIM cards in phone stores in London's city centre.
In addition to cost savings, eSIMs offer other advantages. They eliminate the need for a physical SIM card tray, freeing up space in your handset for a larger battery or additional features. eSIMs also reduce the number of holes in your handset, providing more protection from moisture and dust, and potentially allowing for smaller devices, particularly wearables such as smartwatches.
There are several providers that offer global data plans distributed via eSIM at affordable rates. For example, Airhub App eSIM offers a wide variety of eSIMs at comparatively cheaper prices. GigSky is another provider that offers eSIM profiles with cheap roaming plans for iPhones. You can test their service for free with 100 MB of data for up to 7 days.
While eSIMs offer many benefits, there are also some potential downsides. Currently, if your handset stops working, you can easily remove your physical SIM card and put it into another phone, retaining your phone number and contact information. With an eSIM, you cannot remove the chip and put it into another phone. Additionally, eSIMs are relatively new, and a complete shift from physical SIM cards to eSIMs may still be some way off.
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Sim cards are more expensive at the airport
If you are travelling to London, you may be considering buying a SIM card at the airport. While this is possible, SIM cards at London Heathrow Airport are more expensive than those in phone stores in the London city centre.
One user on TripAdvisor reported buying a SIM card at Heathrow Airport with a 3GB data, 1000-minute call, and text message bundle plan for £30, which was supposed to last for their 12-day stay in the UK. However, the SIM card stopped working after one day, and the staff at the airport were unable to provide a refund. This issue could have been avoided if the user had purchased their SIM card in town, as it would have been easier and less time-consuming to get the issue resolved.
Another user on TripAdvisor reported that they were directed to an EE shop in the city, where they were set up with a 5GB, 500-minute, and unlimited text plan for only £15, which worked great on their Android and iOS phones.
Additionally, tourist SIM cards at airports may be sold at a markup, and you may find that you are paying extra for the convenience of not having to find a local dealer and be without data.
Therefore, it is recommended that you purchase a SIM card in the city or get a global eSIM before your departure, as this will likely be cheaper and provide you with a smoother activation process and better connectivity for your travels.
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Carphone Warehouse offers sims and advice
If you're looking to purchase a SIM card at London Heathrow Airport, you have several options. However, it's worth noting that tourist SIM cards at the airport tend to be more expensive than those available in phone stores in London's city centre.
Carphone Warehouse is one of the shops where you can buy SIM cards and get advice on the best plan for your needs. They have shops all over the UK, including Scotland, and they sell SIM cards for various providers, although notably not for Three. They also offer upgrades across different networks, and you can use their online upgrade checker to see if you're eligible. Carphone Warehouse has been recognised for offering great value SIM-only plans, and they also provide flexible and affordable deals suited to all lifestyles.
If you don't want to be tied down to a contract, Carphone Warehouse offers Pay As You Go options, where you can buy a SIM-free phone and then top up your minutes, texts, and data as needed. They also have a Price Promise, where they will match a cheaper deal you find elsewhere and pay for the first month of your contract.
In addition to Carphone Warehouse, you can also find SIM cards at Sim Local, which has shops in the baggage claim areas and arrival halls of all terminals at Heathrow Airport. They offer a full service, installing the SIM card and ensuring you have a working data connection. However, some travellers have reported issues with SIM cards purchased from Sim Local, including cards that stopped working shortly after purchase.
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Frequently asked questions
Yes, you can buy SIM cards at London Heathrow Airport.
You can buy SIM cards at Sim Local shops in the baggage claim areas and arrival halls of all terminals. Carphone Warehouse is another option, which has shops all over the UK, including at Heathrow Airport.
Buying a local prepaid SIM card at the airport is a good way to avoid high roaming charges. Additionally, you can get help from staff to install and activate the SIM card.
SIM cards at the airport are more expensive than those found in phone stores in London's city centre.
Yes, you can order an eSIM online before you arrive, which will allow you to be online as soon as your plane lands. eSIMs are also generally cheaper than tourist SIM cards at the airport.




























