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Cheap flights from Belfast Intl Airport 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 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LON
12 Feb — 19 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Belfast Intl to London are usually found in March or January, booked 33 days in advance, depart on a Thursday or Monday and return on a Tuesday

Cheap flight deals from Belfast Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 January 2026.

Round-trip from

£39

One-way from

£18

Popular in

June

Cheapest in

March

Average price

£48

Good round-trip deal

£43 or less

Good one-way deal

£24 or less
easyJet
  • easyJet
  • 26/2-28/2
  • Nonstop
  • 3h 00m total
  • Belfast to London
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easyJet
  • easyJet
  • 6/5
  • Nonstop
  • 1h 10m total
  • Belfast to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£14 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Belfast Intl to London (LON).
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Price to beat on a one-way flight from Belfast Intl to London (LON).
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Find flight deals from Belfast Intl to London

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to London
Explore the most affordable flight options available from Belfast Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 January 2026.

Thu 26/206:30
BFS
-
LGW
Nonstop1h 30m
easyJet
Sat 28/206:10
LGW
-
BFS
Nonstop1h 30m
easyJet
Deal found 12/1£39
Tue 10/205:45
BFS
-
STN
Nonstop1h 20m
Ryanair
Tue 17/207:45
STN
-
BFS
Nonstop1h 20m
Ryanair
Deal found 12/1£39
Thu 22/121:00
BFS
-
LTN
Nonstop1h 10m
easyJet
Sat 24/107:00
LTN
-
BFS
Nonstop1h 20m
easyJet
Deal found 12/1£39
Thu 26/206:30
BFS
-
LGW
Nonstop1h 30m
easyJet
Thu 5/308:35
LGW
-
BFS
Nonstop1h 30m
easyJet
Deal found 12/1£39
Fri 23/118:00
BFS
-
STN
Nonstop1h 20m
Ryanair
Fri 30/106:05
STN
-
BFS
Nonstop1h 20m
Ryanair
Deal found 11/1£39
Wed 21/121:00
BFS
-
LTN
Nonstop1h 15m
easyJet
Sat 24/107:00
LTN
-
BFS
Nonstop1h 20m
easyJet
Deal found 11/1£40
Mon 2/308:50
BFS
-
LTN
Nonstop1h 10m
easyJet
Mon 2/319:15
LTN
-
BFS
Nonstop1h 15m
easyJet
Deal found 12/1£41
Thu 26/206:30
BFS
-
LGW
Nonstop1h 30m
easyJet
Fri 27/207:00
LGW
-
BFS
Nonstop1h 30m
easyJet
Deal found 12/1£41
Wed 4/215:45
BFS
-
STN
Nonstop1h 20m
Ryanair
Wed 11/209:25
STN
-
BFS
Nonstop1h 20m
Ryanair
Deal found 12/1£41
Thu 19/308:50
BFS
-
LTN
Nonstop1h 10m
easyJet
Thu 19/314:40
LTN
-
BFS
Nonstop1h 15m
easyJet
Deal found 12/1£42
Tue 3/220:55
BFS
-
LGW
Nonstop1h 25m
easyJet
Tue 10/206:25
LGW
-
BFS
Nonstop1h 30m
easyJet
Deal found 10/1£42
Thu 12/221:00
BFS
-
LTN
Nonstop1h 10m
easyJet
Mon 16/207:00
LTN
-
BFS
Nonstop1h 20m
easyJet
Deal found 12/1£42

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl 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 13 January 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to London that are best for you.

Fly from

Belfast Intl

Fly to

London

Route

Depart

Return

Price

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Mon 16/2

20:55-22:20

Nonstop1h 25m

London Gatwick

Wed 18/2

06:25-07:55

Nonstop1h 30m

£39

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Wed 11/2

15:45-17:05

Nonstop1h 20m

London Stansted

Thu 12/2

08:00-09:20

Nonstop1h 20m

£39

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Fri 27/2

21:20-22:45

Nonstop1h 25m

London Gatwick

Mon 2/3

06:30-08:00

Nonstop1h 30m

£39

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Thu 12/3

18:55-20:20

Nonstop1h 25m

London Gatwick

Tue 17/3

06:25-07:55

Nonstop1h 30m

£39

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Fri 13/2

21:20-22:45

Nonstop1h 25m

London Gatwick

Wed 18/2

06:25-07:55

Nonstop1h 30m

£39

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Wed 25/2

08:35-10:00

Nonstop1h 25m

London Gatwick

Wed 4/3

06:25-07:55

Nonstop1h 30m

£39

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Tue 10/2

20:55-22:20

Nonstop1h 25m

London Gatwick

Wed 18/2

06:25-07:55

Nonstop1h 30m

£39

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Thu 12/2

18:55-20:20

Nonstop1h 25m

London Gatwick

Tue 17/2

19:40-21:10

Nonstop1h 30m

£39

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Tue 24/2

14:15-15:40

Nonstop1h 25m

London Gatwick

Wed 25/2

06:25-07:55

Nonstop1h 30m

£39

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Sat 14/2

10:50-12:15

Nonstop1h 25m

London Gatwick

Wed 18/2

06:25-07:55

Nonstop1h 30m

£39

Flights are sorted by cheapest return flights first.

Deals found on 12/1

Showing 1-10 of 60 results
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Best time to book a flight from Belfast Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Belfast Intl 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 Belfast Intl Airport to London

How far ahead should I book a flight from Belfast Intl Airport to London?

Use this chart to determine the optimal time to book a return flight from Belfast Intl to London. Price data was last updated on 9 January 2026.

Booking 33 days in advance of your planned departure date is, on average, the best time to get cheap flights from Belfast Intl Airport to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Belfast Intl Airport to London?

Currently, February is the cheapest month in which you can book a flight from Belfast Intl Airport to London (average of £13). Flying from Belfast Intl Airport to London in July is currently the most expensive (average of £47). 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 BFS to LON?

Find hourly flight availability from Belfast Intl 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 13 January 2026.

One of the essential ways to save on airfare from Belfast Intl Airport to London is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 19% on airfare.

What is the cheapest day to fly from Belfast Intl Airport to London?

Use this chart to determine the cheapest time to fly return from Belfast Intl to London. Price data was last updated on 10 January 2026.

Travellers seeking maximum savings on their Belfast Intl Airport to London flight should consider departing on Tuesday at midday when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

How often are flights from Belfast to London delayed?

About 15% of weekly flights between Belfast 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 Belfast to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night 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 Belfast to London flights?

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

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 13 January 2026.
See what other customers who have flown with Ryanair, easyJet, andBritish Airways from Belfast Intl Airport 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
5,242 reviews
Check prices

Food

6.0

Entertainment

5.6

Overall

6.9

Comfort

6.5

Boarding

6.7

Crew

7.5

Reviews

1 / 20
4.0
Okay

Mark,May 2025

BCN - STN

Departed an hour late, with zero indication that that would be the case, very poor communication / acknowledgement of the delay, with no explanation.
Ryanair
6.9
Okay
5,242 reviews
Ryanair
6.9
Okay
5,242 reviews
Check prices

Food

6.0

Entertainment

5.6

Overall

6.9

Comfort

6.5

Boarding

6.7

Crew

7.5

Reviews

1 / 20
4.0
Okay

Mark,May 2025

BCN - STN

Departed an hour late, with zero indication that that would be the case, very poor communication / acknowledgement of the delay, with no explanation.
easyJet
6.9
Okay
1,861 reviews
Ryanair
6.9
Okay
5,242 reviews
Check prices

Food

6.0

Entertainment

5.6

Overall

6.9

Comfort

6.5

Boarding

6.7

Crew

7.5

Reviews

1 / 20
4.0
Okay

Mark,May 2025

BCN - STN

Departed an hour late, with zero indication that that would be the case, very poor communication / acknowledgement of the delay, with no explanation.
British Airways
6.7
Okay
7,665 reviews
Ryanair
6.9
Okay
5,242 reviews
Check prices

Food

6.0

Entertainment

5.6

Overall

6.9

Comfort

6.5

Boarding

6.7

Crew

7.5

Reviews

1 / 20
4.0
Okay

Mark,May 2025

BCN - STN

Departed an hour late, with zero indication that that would be the case, very poor communication / acknowledgement of the delay, with no explanation.
Ryanair
6.4
Okay
Ryanair
6.9
Okay
5,242 reviews
Check prices

Food

6.0

Entertainment

5.6

Overall

6.9

Comfort

6.5

Boarding

6.7

Crew

7.5

Reviews

1 / 20
4.0
Okay

Mark,May 2025

BCN - STN

Departed an hour late, with zero indication that that would be the case, very poor communication / acknowledgement of the delay, with no explanation.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl 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 Belfast Intl Airport to London?

    For as low as £39, easyJet can have you in London from Belfast Intl Airport in 1h 20m. The distance from Belfast Intl Airport to London is about 328 mi. Generally, flights for this route are direct.

  • What are the cheapest airlines flying from Belfast Intl Airport to London round-trip?

    Flying on Ryanair is currently your cheapest option to London, with prices starting at £19. Additional return tickets that might be worth considering are offered by easyJet and Ryanair, with the lowest prices starting at £20 and £48, respectively. You may be able to fly from Belfast Intl Airport to London for 72% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Belfast Intl Airport to London one-way?

    For one-way options, check prices for Ryanair. According to our data, you can fly for as low as £15. Users have also found prices from £17 and £52 on easyJet and British Airways, respectively.

  • What are the most popular routes from Belfast Intl Airport to London?

    While some choose either Belfast Intl - London Luton or Belfast Intl - London Heathrow, Belfast Intl - London Gatwick is the most popular route from Belfast Intl Airport to London.

  • Can I find deals for flights from Belfast Intl to London that include hotel bookings?

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

  • How can I find direct flights from Belfast Intl to London?

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

  • Can I find deals for business class flights from Belfast Intl to London?

    Yes. Cheapflights offers flight deals from Belfast Intl 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 Belfast Intl Airport to London?

    Currently, February is the cheapest month in which you can book a flight from Belfast Intl Airport to London (average of £13). Flying from Belfast Intl Airport to London in July is currently the most expensive (average of £47). 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
Milton Keynes
Croydon
Luton
Slough
Gatwick
Hounslow
Wembley
Ilford
Brentford
Hayes
Colchester
Watford
Crawley
Kingston upon Thames
Bedford
Chelmsford
Eastbourne
Romford
Folkestone
Southall

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Fly from Belfast Intl to London on these airlines

Choose from the following airlines for your flight from Belfast Intl to London. Flights are based on user searches made on Cheapflights and were last updated on 13 January 2026.
easyJet flights from Belfast Intl to London
Ryanair flights from Belfast Intl to London
Ryanair flights from Belfast Intl to London

Top 4 airlines flying from Belfast Intl to London

Discover the top 4 airlines that operate flights from Belfast Intl 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 13 January 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£23Average£55FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£28Average£83FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£48Average£63FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£79Average£149FlexibilityNo cancel feeOn-time70%
Search British Airways 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 Belfast Intl to London?

Cheapflights helps you search for flights from Belfast Intl to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to London?

Cheapflights helps you find that perfect flight to London from Belfast Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Belfast Intl to London with no change fees?

Yes, we can. To see specific flights from Belfast Intl to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Belfast Intl to London become cheaper?

Not ready to book yet? You can track prices for flights from Belfast Intl to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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