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Cheap flights from London to the United Kingdom 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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LHR
9 Jul — 16 Jul1
1 adult

Cheap flight deals from London to United Kingdom

Keep the following information in mind while searching for London to United Kingdom flight deals. Data was last updated 4 July 2025.

Round-trip from

£34

One-way from

£18

Good round-trip deal

£37 or less

Good one-way deal

£17 or less
easyJet
  • easyJet
  • 28/8-1/9
  • Nonstop
  • 2h 35m total
  • London to United Kingdom
Search Deals
easyJet
  • easyJet
  • 25/8
  • Nonstop
  • 1h 15m total
  • London to United Kingdom
Search Deals
Price to beat on a round-trip flight from London (LON) to United Kingdom.
Search Deals
Price to beat on a one-way flight from London (LON) to United Kingdom.
Search Deals

Find flight deals from London to United Kingdom

Cheapest flights from London to United Kingdom
Explore the most affordable flight options available from London to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.

Thu 28/816:00LTN - EDI
Nonstop1h 15measyJet
Mon 1/907:00EDI - LTN
Nonstop1h 20measyJet
Deal found 3/7£34
Tue 19/821:30STN - EDI
Nonstop1h 15measyJet
Wed 20/806:20EDI - STN
Nonstop1h 25measyJet
Deal found 1/7£34
Thu 14/806:50STN - EDI
Nonstop1h 20mRyanair
Sun 17/806:35EDI - STN
Nonstop1h 25mRyanair
Deal found 3/7£34
Thu 14/806:50STN - EDI
Nonstop1h 20mRyanair
Sun 17/806:35EDI - STN
Nonstop1h 25mRyanair
Deal found 2/7£42
Sun 21/906:45STN - BFS
Nonstop1h 15mRyanair
Mon 22/906:45BFS - STN
Nonstop1h 20mRyanair
Deal found 2/7£45
Fri 26/907:05LTN - BFS
Nonstop1h 15measyJet
Sun 28/907:00BFS - LTN
Nonstop1h 10measyJet
Deal found 2/7£45
Tue 9/908:25LGW - BFS
Nonstop1h 30measyJet
Wed 10/921:05BFS - LGW
Nonstop1h 25measyJet
Deal found 2/7£48
Mon 1/908:55STN - GLA
Nonstop1h 20measyJet
Fri 5/916:25GLA - STN
Nonstop1h 20measyJet
Deal found 1/7£51
Tue 19/821:00LGW - EDI
Nonstop1h 25measyJet
Wed 20/806:00EDI - LGW
Nonstop1h 35measyJet
Deal found 3/7£54
Tue 22/707:50STN - EDI
Nonstop1h 20mMultiple Airlines
Mon 28/706:00EDI - STN
Nonstop1h 25mMultiple Airlines
Deal found 3/7£60
Wed 30/707:50STN - BFS
Nonstop1h 20measyJet
Wed 6/806:00BFS - STN
Nonstop1h 20measyJet
Deal found 2/7£72
Wed 30/707:50STN - BFS
Nonstop1h 20mMultiple Airlines
Wed 30/722:05BFS - STN
Nonstop1h 20mMultiple Airlines
Deal found 2/7£75

Cheapflights Fare Finder

Customise your flight search to find flights from London to United Kingdom 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 4 July 2025.
Use the filters below to find and compare flights from London to the United Kingdom that are best for you.

Fly from

London

Fly to

United Kingdom

Route

Depart

Return

Price

LondonEdinburgh

LTN - EDI

LTNEDI

London Luton

Thu 28/8

16:00-17:15

Nonstop1h 15m

Edinburgh Turnhouse

Mon 1/9

07:00-08:20

Nonstop1h 20m

£34

LondonEdinburgh

STN - EDI

STNEDI

London Stansted

Tue 19/8

21:30-22:45

Nonstop1h 15m

Edinburgh Turnhouse

Wed 20/8

06:20-07:45

Nonstop1h 25m

£34

LondonEdinburgh

STN - EDI

STNEDI

London Stansted

Thu 14/8

06:50-08:10

Nonstop1h 20m

Edinburgh Turnhouse

Sun 17/8

06:35-08:00

Nonstop1h 25m

£34

LondonEdinburgh

STN - EDI

STNEDI

London Stansted

Thu 14/8

06:50-08:10

Nonstop1h 20m

Edinburgh Turnhouse

Sun 17/8

06:35-08:00

Nonstop1h 25m

£42

LondonBelfast

STN - BFS

STNBFS

London Stansted

Sun 21/9

06:45-08:00

Nonstop1h 15m

Belfast Intl

Mon 22/9

06:45-08:05

Nonstop1h 20m

£45

LondonBelfast

LTN - BFS

LTNBFS

London Luton

Fri 26/9

07:05-08:20

Nonstop1h 15m

Belfast Intl

Sun 28/9

07:00-08:10

Nonstop1h 10m

£45

LondonBelfast

LGW - BFS

LGWBFS

London Gatwick

Tue 9/9

08:25-09:55

Nonstop1h 30m

Belfast Intl

Wed 10/9

21:05-22:30

Nonstop1h 25m

£48

LondonGlasgow

STN - GLA

STNGLA

London Stansted

Mon 1/9

08:55-10:15

Nonstop1h 20m

Glasgow Intl

Fri 5/9

16:25-17:45

Nonstop1h 20m

£51

LondonEdinburgh

LGW - EDI

LGWEDI

London Gatwick

Tue 19/8

21:00-22:25

Nonstop1h 25m

Edinburgh Turnhouse

Wed 20/8

06:00-07:35

Nonstop1h 35m

£54

LondonEdinburgh

STN - EDI

STNEDI

London Stansted

Tue 22/7

07:50-09:10

Nonstop1h 20m

Edinburgh Turnhouse

Mon 28/7

06:00-07:25

Nonstop1h 25m

£60

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 38 results
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Best time to book a flight from London to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from London 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 London to the United Kingdom

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

Currently, January is the cheapest month in which you can book a flight from London to United Kingdom (average of £112). Flying from London to United Kingdom 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 LON to GB?

Find hourly flight availability from London to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.

When flying from London to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated 4 July 2025.
Check out reviews from past customers who have flown with easyJet, Ryanair, andBritish Airways from London to the United Kingdom to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,816 reviews
Check prices

Entertainment

5.5

Crew

7.6

Food

5.9

Comfort

6.7

Boarding

6.7

Overall

6.9

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
easyJet
6.9
Okay
1,816 reviews
easyJet
6.9
Okay
1,816 reviews
Check prices

Entertainment

5.5

Crew

7.6

Food

5.9

Comfort

6.7

Boarding

6.7

Overall

6.9

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
Ryanair
6.9
Okay
5,145 reviews
easyJet
6.9
Okay
1,816 reviews
Check prices

Entertainment

5.5

Crew

7.6

Food

5.9

Comfort

6.7

Boarding

6.7

Overall

6.9

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
British Airways
6.6
Okay
7,093 reviews
easyJet
6.9
Okay
1,816 reviews
Check prices

Entertainment

5.5

Crew

7.6

Food

5.9

Comfort

6.7

Boarding

6.7

Overall

6.9

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
Ryanair
6.1
Okay
easyJet
6.9
Okay
1,816 reviews
Check prices

Entertainment

5.5

Crew

7.6

Food

5.9

Comfort

6.7

Boarding

6.7

Overall

6.9

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!

Related info for your journey

Find useful and relevant information for your journey from London to United Kingdom. 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 London to United Kingdom one-way?

    The cheapet airlines for a one-way flight from London to United Kingdom are easyJet (£18), Ryanair (£18), and Ryanair (£34).

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

    Most travelers choose London Gatwick - Belfast Intl, London Luton - Belfast Intl or London Gatwick - Edinburgh Turnhouse when deciding on the best route from London to United Kingdom.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to United Kingdom 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 London to United Kingdom?

    Currently, January is the cheapest month in which you can book a flight from London to United Kingdom (average of £112). Flying from London to United Kingdom 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from London to United Kingdom

Discover the top 9 airlines that operate flights from London to United Kingdom. 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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£14Average£55FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£28Average£107FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£29Average£123FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£55Average£122FlexibilityNo cancel feeOn-time70%
Search British Airways flights
easyJetCheapest£56Average£82FlexibilityNo cancel feeOn-time70%
Search easyJet flights
FinnairCheapest£75Average£138FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£167Average£279FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aurigny AirCheapest£174Average£312FlexibilityNo cancel feeOn-time78%
Search Aurigny Air flights
Aer LingusCheapest£229Average£276FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for London to United Kingdom flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from London to United Kingdom by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to United Kingdom from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on London to United Kingdom flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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