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Cheap flights from the United Kingdom to London from £18

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LON
16 Jul — 23 Jul1
1 adult

Cheap flight deals from United Kingdom to London

Keep the following information in mind while searching for United Kingdom to London flight deals. Data was last updated 11 July 2025.

Round-trip from

£37

One-way from

£18

Popular in

May

Cheapest in

March

Average price

£104

Good round-trip deal

£34 or less

Good one-way deal

£21 or less
Ryanair
  • Ryanair
  • 12/8-14/8
  • Nonstop
  • 2h 45m total
  • United Kingdom to London
Search Deals
easyJet
  • easyJet
  • 21/9
  • Nonstop
  • 1h 25m total
  • United Kingdom to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£4 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£1 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to London (LON).
Search Deals
Price to beat on a one-way flight from United Kingdom to London (LON).
Search Deals

Find flight deals from United Kingdom to London

Cheapest flights from United Kingdom to London
Explore the most affordable flight options available from United Kingdom to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Tue 12/812:35EDI - STN
Nonstop1h 25mRyanair
Thu 14/806:50STN - EDI
Nonstop1h 20mRyanair
Deal found 9/7£37
Sat 4/1006:00EDI - STN
Nonstop1h 25measyJet
Sun 5/1008:00STN - EDI
Nonstop1h 20measyJet
Deal found 10/7£38
Mon 13/1021:40EDI - LTN
Nonstop1h 15measyJet
Fri 17/1008:15LTN - EDI
Nonstop1h 20measyJet
Deal found 10/7£38
Wed 6/806:00EDI - LGW
Nonstop1h 35measyJet
Tue 26/821:00LGW - EDI
Nonstop1h 25measyJet
Deal found 10/7£54
Wed 13/806:35EDI - STN
Nonstop1h 25mMultiple Airlines
Mon 18/821:30STN - EDI
Nonstop1h 15mMultiple Airlines
Deal found 10/7£56
Sat 16/819:35BFS - STN
Nonstop1h 20mRyanair
Sun 17/806:45STN - BFS
Nonstop1h 15mRyanair
Deal found 9/7£60
Thu 28/808:15BFS - LTN
1 stop7h 20measyJet
Sat 30/807:05LTN - BFS
Nonstop1h 20measyJet
Deal found 9/7£60
Mon 8/920:55BFS - LGW
Nonstop1h 30measyJet
Wed 10/919:15LGW - BFS
1 stop12h 35measyJet
Deal found 9/7£60
Wed 6/821:10BFS - STN
1 stop10h 35measyJet
Wed 13/807:50STN - BFS
Nonstop1h 20measyJet
Deal found 9/7£61
Sat 30/806:00EDI - STN
Nonstop1h 25mRyanair
Sat 30/815:15STN - EDI
Nonstop1h 20mRyanair
Deal found 9/7£62
Sun 31/807:00BFS - STN
Nonstop1h 20mMultiple Airlines
Wed 3/909:10STN - BFS
Nonstop1h 15mMultiple Airlines
Deal found 8/7£63
Thu 4/919:00EDI - LTN
Nonstop1h 15mMultiple Airlines
Sun 7/911:45LTN - EDI
1 stop5h 00mMultiple Airlines
Deal found 10/7£75

Cheapflights Fare Finder

Customise your flight search to find flights from United Kingdom to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 July 2025.
Use the filters below to find and compare flights from the United Kingdom to London that are best for you.

Fly from

United Kingdom

Fly to

London

Route

Depart

Return

Price

EdinburghLondon

EDI - STN

EDISTN

Edinburgh Turnhouse

Tue 12/8

12:35-14:00

Nonstop1h 25m

London Stansted

Thu 14/8

06:50-08:10

Nonstop1h 20m

£37

EdinburghLondon

EDI - STN

EDISTN

Edinburgh Turnhouse

Sat 4/10

06:00-07:25

Nonstop1h 25m

London Stansted

Sun 5/10

08:00-09:20

Nonstop1h 20m

£38

EdinburghLondon

EDI - LTN

EDILTN

Edinburgh Turnhouse

Mon 13/10

21:40-22:55

Nonstop1h 15m

London Luton

Fri 17/10

08:15-09:35

Nonstop1h 20m

£38

EdinburghLondon

EDI - LGW

EDILGW

Edinburgh Turnhouse

Wed 6/8

06:00-07:35

Nonstop1h 35m

London Gatwick

Tue 26/8

21:00-22:25

Nonstop1h 25m

£54

EdinburghLondon

EDI - STN

EDISTN

Edinburgh Turnhouse

Wed 13/8

06:35-08:00

Nonstop1h 25m

London Stansted

Mon 18/8

21:30-22:45

Nonstop1h 15m

£56

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Sat 16/8

19:35-20:55

Nonstop1h 20m

London Stansted

Sun 17/8

06:45-08:00

Nonstop1h 15m

£60

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Thu 28/8

08:15-15:35

1 stop7h 20m

London Luton

Sat 30/8

07:05-08:25

Nonstop1h 20m

£60

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Mon 8/9

20:55-22:25

Nonstop1h 30m

London Gatwick

Wed 10/9

19:15-07:50

1 stop12h 35m

£60

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Wed 6/8

21:10-07:45

1 stop10h 35m

London Stansted

Wed 13/8

07:50-09:10

Nonstop1h 20m

£61

EdinburghLondon

EDI - STN

EDISTN

Edinburgh Turnhouse

Sat 30/8

06:00-07:25

Nonstop1h 25m

London Stansted

Sat 30/8

15:15-16:35

Nonstop1h 20m

£62

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 46 results
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5

Best time to book a flight from United Kingdom to London

Have a flexible travel schedule? Discover the best time to fly to London from United Kingdom with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to London

What is the cheapest month to book a flight from United Kingdom to London?

Currently, January is the cheapest month in which you can book a flight from United Kingdom to London (average of £112). Flying from United Kingdom to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to LON?

Find hourly flight availability from United Kingdom to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to London as you normally would.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 11 July 2025.
See what other customers who have flown with Aer Lingus, easyJet, andRyanair from the United Kingdom to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.1
Good
1,154 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.1

Food

6.4

Comfort

7.0

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
Aer Lingus
7.1
Good
1,154 reviews
Aer Lingus
7.1
Good
1,154 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.1

Food

6.4

Comfort

7.0

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
easyJet
6.9
Okay
1,817 reviews
Aer Lingus
7.1
Good
1,154 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.1

Food

6.4

Comfort

7.0

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
Ryanair
6.8
Okay
5,152 reviews
Aer Lingus
7.1
Good
1,154 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.1

Food

6.4

Comfort

7.0

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
British Airways
6.6
Okay
7,109 reviews
Aer Lingus
7.1
Good
1,154 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.1

Food

6.4

Comfort

7.0

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
Ryanair
6.1
Okay
Aer Lingus
7.1
Good
1,154 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.1

Food

6.4

Comfort

7.0

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from United Kingdom to London one-way?

    To fly one-way, consider booking your trip with easyJet, which is currently one of the cheapest options available, starting at £18. Ryanair flights start at £20 while deals on Ryanair start at £21 one-way.

  • What are the most popular routes from United Kingdom to London?

    While some choose either Belfast Intl - London Gatwick or Belfast Intl - London Luton, Edinburgh Turnhouse - London Gatwick is the most popular route from United Kingdom to London.

  • Can I find deals for flights from United Kingdom to London that include hotel bookings?

    Yes. In addition to deals on United Kingdom to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to London.

  • Can I find deals for business class flights from United Kingdom to London?

    Yes. Cheapflights offers flight deals from United Kingdom to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to London?

    Currently, January is the cheapest month in which you can book a flight from United Kingdom to London (average of £112). Flying from United Kingdom to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Gatwick
Slough
Luton
Wembley
Crawley
Eastbourne
Ilford
Hayes
Ipswich
Folkestone
Southend-on-Sea
Watford
Winchester
Maidstone
Guildford
Chichester

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for United Kingdom to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from United Kingdom to London

Discover the top 7 airlines that operate flights from United Kingdom to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£24Average£101FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£26Average£48FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£28Average£125FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£47Average£121FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£158Average£291FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£159Average£292FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Aurigny AirCheapest£232Average£389FlexibilityNo cancel feeOn-time78%
Search Aurigny Air flights

Fly with Cheapflights

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How does Cheapflights help users find flights from United Kingdom to London?

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Why should you use Cheapflights to find cheap flight tickets from United Kingdom to London?

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Can Cheapflights find flights from United Kingdom to London with no change fees?

Need flexible booking options for your flight to London from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from United Kingdom today and book when prices fit your budget.

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