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Cheap flights from the United Kingdom to London from £17

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LON
5 Sep — 12 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to London

Enter your travel dates to find the best prices.

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 6 August 2026.

Wed 19/821:10 -
Nonstop1h 30m
Thu 20/806:05 -
Nonstop1h 35m
Deal found 4/8£33
Fri 18/921:15 -
Nonstop1h 20m
Sun 20/906:45 -
Nonstop1h 35m
Deal found 4/8£33
Fri 18/921:15 -
Nonstop1h 20m
Fri 25/919:15 -
Nonstop1h 35m
Deal found 3/8£34
Wed 16/921:10 -
Nonstop1h 30m
Thu 17/906:05 -
Nonstop1h 35m
Deal found 5/8£35
Sun 13/921:45 -
Nonstop1h 20m
Thu 17/906:05 -
Nonstop1h 35m
Deal found 2/8£36
Thu 3/919:00 -
Nonstop1h 20m
Mon 7/906:05 -
Nonstop1h 35m
Deal found 5/8£36
Tue 15/921:20 -
Nonstop1h 30m
Wed 14/1009:55 -
Nonstop1h 35m
Deal found 5/8£37
Wed 16/910:05 -
Nonstop1h 25m
Wed 23/922:25 -
Nonstop1h 15m
Deal found 2/8£37
Wed 16/915:40 -
Nonstop1h 15m
Wed 23/908:55 -
Nonstop1h 20m
Deal found 2/8£37
Sat 12/921:35 -
Nonstop1h 20m
Tue 15/907:10 -
Nonstop1h 35m
Deal found 2/8£38
Thu 17/906:05 -
Nonstop1h 20m
Mon 21/916:25 -
Nonstop1h 20m
Deal found 2/8£38
Wed 26/821:10 -
Nonstop1h 30m
Wed 2/909:55 -
Nonstop1h 35m
Deal found 5/8£39

Find 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 6 August 2026.

Round-trip from

£33

One-way from

£17

Popular in

May

Cheapest in

November

Average price

£132

Good round-trip deal

£34 or less

Good one-way deal

£18 or less
Ryanair
  • Ryanair
  • 19/8-20/8
  • Nonstop
  • 3h 05m total
  • United Kingdom to London
Search Deals
Ryanair
  • Ryanair
  • 9/9
  • Nonstop
  • 1h 30m total
  • United Kingdom to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£8 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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

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 6 August 2026.
Use the filters below to find and compare flights from the United Kingdom to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Fri 4/9

21:15-22:35

Nonstop1h 20m

London Stansted

Sun 6/9

06:45-08:20

Nonstop1h 35m

£33

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Tue 18/8

21:20-22:50

Nonstop1h 30m

London Stansted

Wed 19/8

09:55-11:30

Nonstop1h 35m

£33

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Mon 7/9

22:20-23:40

Nonstop1h 20m

London Stansted

Thu 10/9

06:05-07:40

Nonstop1h 35m

£33

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Fri 18/9

21:15-22:35

Nonstop1h 20m

London Stansted

Sun 20/9

06:45-08:20

Nonstop1h 35m

£33

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Fri 4/9

21:15-22:35

Nonstop1h 20m

London Stansted

Mon 7/9

06:05-07:40

Nonstop1h 35m

£33

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Thu 10/9

19:00-20:20

Nonstop1h 20m

London Stansted

Mon 28/9

06:05-07:40

Nonstop1h 35m

£34

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Fri 18/9

21:15-22:35

Nonstop1h 20m

London Stansted

Fri 25/9

19:15-20:50

Nonstop1h 35m

£34

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Mon 14/9

22:20-23:40

Nonstop1h 20m

London Stansted

Thu 17/9

06:05-07:40

Nonstop1h 35m

£34

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Thu 17/9

08:05-09:25

Nonstop1h 20m

London Stansted

Sat 19/9

07:25-09:00

Nonstop1h 35m

£35

GlasgowLondon

GLA Glasgow Intl - STN London Stansted

GLASTN

Glasgow Intl

Sun 6/9

21:45-23:05

Nonstop1h 20m

London Stansted

Wed 16/9

09:55-11:30

Nonstop1h 35m

£35

Flights are sorted by cheapest return flights first.

Deals found on 4/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
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6

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 £94). Flying from United Kingdom to London in July is currently the most expensive (average of £124). 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 6 August 2026.

It’s typically best to fly out from United Kingdom to London in the evening. Doing so could potentially save you 31% on the flight price compared to flying in the afternoon, which is usually more expensive.

How often are flights from the United Kingdom to London delayed?

About 15% of weekly flights between United Kingdom and London have experienced delays in the past year, with the average delay time being 103 minutes.

What is the most punctual flight time for the United Kingdom to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to London flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 14% of flights being delayed.

How far ahead should I book a flight from United Kingdom to London?

To ensure you get the cheapest price possible for a flight from United Kingdom to London, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from United Kingdom to London?

Use this chart to determine the cheapest time to fly return from United Kingdom to London. Price data was last updated on 1 August 2026.

Travellers seeking maximum savings on their United Kingdom to London flight should consider departing on Sunday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 6 August 2026.
See what other customers who have flown with Ryanair,easyJet, andBritish Airways 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.
Ryanair
6.9
Okay
5,457 reviews
Check prices

Comfort

6.5

Overall

6.9

Food

6.0

Crew

7.5

Boarding

6.7

Entertainment

5.7

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???
Ryanair
6.9
Okay
5,457 reviews
Ryanair
6.9
Okay
5,457 reviews
Check prices

Comfort

6.5

Overall

6.9

Food

6.0

Crew

7.5

Boarding

6.7

Entertainment

5.7

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???
easyJet
6.9
Okay
1,921 reviews
Ryanair
6.9
Okay
5,457 reviews
Check prices

Comfort

6.5

Overall

6.9

Food

6.0

Crew

7.5

Boarding

6.7

Entertainment

5.7

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???
British Airways
6.7
Okay
8,147 reviews
Ryanair
6.9
Okay
5,457 reviews
Check prices

Comfort

6.5

Overall

6.9

Food

6.0

Crew

7.5

Boarding

6.7

Entertainment

5.7

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???
Ryanair
6.4
Okay
Ryanair
6.9
Okay
5,457 reviews
Check prices

Comfort

6.5

Overall

6.9

Food

6.0

Crew

7.5

Boarding

6.7

Entertainment

5.7

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???

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.

  • How long is the flight from United Kingdom to London?

    For as low as £33, Ryanair can have you in London from United Kingdom in 1h 20m. There are 334 mi between United Kingdom and London. Most flights are nonstop.

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

    To fly one-way, consider booking your trip with Ryanair, which is currently one of the cheapest options available, starting at £15. easyJet flights start at £16 while deals on Ryanair start at £43 one-way.

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

    While some choose either Belfast Intl - London Gatwick or Edinburgh Turnhouse - London Gatwick, Belfast Intl - London Luton 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 £94). Flying from United Kingdom to London in July is currently the most expensive (average of £124). 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 London?

Book flights to London if you plan to visit one of these locations
Hounslow
Milton Keynes
Gatwick
Luton
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Watford
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Dover
Romford
Borehamwood

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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.
Charles de Gaulle to Gatwick flights
Charles de Gaulle to Luton flights
Charles de Gaulle to London City flights
Duesseldorf Intl to Stansted flights
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Duesseldorf Intl to Luton flights
Amsterdam to Gatwick flights
Charles de Gaulle to Heathrow flights
Duesseldorf Intl to Heathrow flights
Frankfurt to Gatwick flights
Frankfurt to Luton flights
Charles de Gaulle to Southend flights
Vienna to Stansted flights
Frankfurt to Heathrow flights
Gatwick to Edinburgh flights
Stansted to Edinburgh flights
Luton to Edinburgh flights
Orly to Heathrow flights
Duesseldorf Intl to London City flights
Orly to Luton flights
Heathrow to Edinburgh flights
Madrid to Gatwick flights
Orly to London City flights
Vicenza to Heathrow flights
Berlin to Gatwick flights
Charles de Gaulle to Edinburgh flights
Bruxelles-National to Gatwick flights
Bruxelles-National to Stansted flights
Bruxelles-National to Luton flights
Amsterdam to Heathrow flights
Dublin to Gatwick flights
Bruxelles-National to Heathrow flights
Vienna to Heathrow flights
Vienna to London City flights
London City to Edinburgh flights
Vienna to Edinburgh flights
Frankfurt-Hahn to Stansted flights
Naples to Heathrow flights
Amsterdam to Luton flights
Vienna to Gatwick flights
Amsterdam to London City flights
Dublin to Luton flights
Madrid to Heathrow flights
Dublin to Stansted flights
Vicenza to Gatwick flights
Naples to Stansted flights
Madrid to Luton flights
Frederic Chopin to Stansted flights
Lyon to Gatwick flights
Vienna to Luton flights

Top 5 airlines flying from United Kingdom to London

Discover the top 5 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 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£18Average£83FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£25Average£47FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£36Average£134FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£77Average£126FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£162Average£238FlexibilityNo cancel feeOn-time75%
Search KLM 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 United Kingdom to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from United Kingdom today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to London 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 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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