Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Belfast to London from £21

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 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LON
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Belfast to London are usually found in January or March, booked 82 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Belfast to London

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) 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 18 September 2025.

Round-trip from

£39

One-way from

£21

Popular in

June

Cheapest in

January

Average price

£62
Ryanair
  • Ryanair
  • 3/10-6/10
  • Nonstop
  • 2h 35m total
  • Belfast to London
Search Deals
easyJet
  • easyJet
  • 17/1
  • Nonstop
  • 1h 10m total
  • Belfast to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Belfast to London

Cheapest flights from Belfast to London
Explore the most affordable flight options available from Belfast to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 3/1021:40BFS - STN
Nonstop1h 20mRyanair
Mon 6/1020:15STN - BFS
Nonstop1h 15mRyanair
Deal found 17/9£39
Fri 10/1020:25BFS - STN
Nonstop1h 15measyJet
Sun 12/1008:50STN - BFS
Nonstop1h 20measyJet
Deal found 17/9£40
Thu 6/1120:00BHD - LTN
Nonstop1h 20measyJet
Sun 9/1113:10LTN - BHD
Nonstop1h 15measyJet
Deal found 17/9£40
Fri 3/1021:40BFS - STN
Nonstop1h 20mRyanair
Sun 5/1006:45STN - BFS
Nonstop1h 15mRyanair
Deal found 17/9£40
Fri 14/1116:30BHD - LTN
Nonstop1h 10measyJet
Mon 17/1108:00LTN - BHD
Nonstop1h 25measyJet
Deal found 16/9£41
Sat 20/1210:10BFS - STN
Nonstop1h 15measyJet
Tue 30/1207:50STN - BFS
Nonstop1h 20measyJet
Deal found 15/9£41
Thu 18/906:00BFS - STN
Nonstop1h 20mRyanair
Sun 21/906:45STN - BFS
Nonstop1h 15mRyanair
Deal found 16/9£42
Mon 22/1206:40BFS - LTN
Nonstop1h 10measyJet
Sat 3/107:00LTN - BFS
Nonstop1h 20measyJet
Deal found 16/9£42
Tue 2/1212:15BHD - LTN
Nonstop1h 10measyJet
Thu 4/1218:05LTN - BHD
Nonstop1h 15measyJet
Deal found 17/9£42
Tue 23/1205:45BFS - STN
Nonstop1h 20mRyanair
Fri 2/119:45STN - BFS
Nonstop1h 20mRyanair
Deal found 16/9£42
Fri 31/1021:05BFS - LTN
Nonstop1h 10measyJet
Fri 7/1107:00LTN - BFS
Nonstop1h 20measyJet
Deal found 15/9£43
Fri 5/1221:20BFS - LGW
Nonstop1h 25measyJet
Mon 8/1206:30LGW - BFS
Nonstop1h 30measyJet
Deal found 16/9£43

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast 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 18 September 2025.
Use the filters below to find and compare flights from Belfast to London that are best for you.

Fly from

Belfast

Fly to

London

Route

Depart

Return

Price

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Fri 3/10

21:40-23:00

Nonstop1h 20m

London Stansted

Mon 6/10

20:15-21:30

Nonstop1h 15m

£39

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Wed 1/10

22:05-23:25

Nonstop1h 20m

London Stansted

Sun 5/10

06:45-08:00

Nonstop1h 15m

£40

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Fri 3/10

21:40-23:00

Nonstop1h 20m

London Stansted

Sun 5/10

06:45-08:00

Nonstop1h 15m

£40

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Sun 19/10

23:30-00:50

Nonstop1h 20m

London Stansted

Mon 20/10

08:30-09:45

Nonstop1h 15m

£40

BelfastLondon

BHD - LTN

BHDLTN

Belfast City

Fri 14/11

16:30-17:40

Nonstop1h 10m

London Luton

Mon 17/11

08:00-09:25

Nonstop1h 25m

£41

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Wed 24/12

14:50-16:00

Nonstop1h 10m

London Luton

Wed 31/12

07:00-08:20

Nonstop1h 20m

£42

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Fri 31/10

07:50-09:10

Nonstop1h 20m

London Stansted

Fri 7/11

06:05-07:25

Nonstop1h 20m

£42

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Sun 21/12

16:25-17:35

Nonstop1h 10m

London Luton

Tue 30/12

07:00-08:20

Nonstop1h 20m

£42

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Mon 22/12

21:00-22:10

Nonstop1h 10m

London Luton

Fri 2/1

07:00-08:20

Nonstop1h 20m

£42

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Sat 20/12

13:10-14:20

Nonstop1h 10m

London Luton

Wed 31/12

08:40-10:00

Nonstop1h 20m

£42

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Belfast to London

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

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

Use this chart to determine the optimal time to book a return flight from Belfast to London. Price data was last updated on 12 September 2025.

The best time to book flights from Belfast to London is 33 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

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

Find hourly flight availability from Belfast 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 18 September 2025.

One of the essential ways to save on airfare from Belfast 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 17% on airfare.

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

Use this chart to determine the cheapest time to fly return from Belfast to London. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Belfast to London flight should consider departing on Tuesday at midday when fares are most often at their lowest. Sunday at midday 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 18 September 2025.
Read reviews from past customers who have flown with easyJet, Ryanair, andBritish Airways from Belfast to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,822 reviews
Check prices

Boarding

6.7

Comfort

6.7

Crew

7.6

Entertainment

5.5

Food

5.9

Overall

6.9

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
easyJet
6.9
Okay
1,822 reviews
easyJet
6.9
Okay
1,822 reviews
Check prices

Boarding

6.7

Comfort

6.7

Crew

7.6

Entertainment

5.5

Food

5.9

Overall

6.9

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
Ryanair
6.8
Okay
5,159 reviews
easyJet
6.9
Okay
1,822 reviews
Check prices

Boarding

6.7

Comfort

6.7

Crew

7.6

Entertainment

5.5

Food

5.9

Overall

6.9

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
British Airways
6.7
Okay
7,367 reviews
easyJet
6.9
Okay
1,822 reviews
Check prices

Boarding

6.7

Comfort

6.7

Crew

7.6

Entertainment

5.5

Food

5.9

Overall

6.9

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
Ryanair
6.2
Okay
easyJet
6.9
Okay
1,822 reviews
Check prices

Boarding

6.7

Comfort

6.7

Crew

7.6

Entertainment

5.5

Food

5.9

Overall

6.9

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.

Related info for your journey

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

    Departing from Belfast to London will take you 1h 10m. Airlines will cover a distance of 296 mi. Generally, flights for this route are direct.

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

    According to our current data, Ryanair (£26), easyJet (£29), and Ryanair (£50) offers the cheapest pricing from Belfast to London. Ryanair is 58% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The most popular flight routes from Belfast to London are Belfast Intl - London Gatwick, Belfast Intl - London Luton and Belfast City - London Heathrow.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast 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 to London?

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

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Slough
Gatwick
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Ipswich
Dartford
Guildford
Brentford
Bishop's Stortford
Romford

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 Belfast to London

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Gatwick flights
Belfast Intl to Luton flights
Belfast Intl to Heathrow flights
Belfast City to Gatwick flights
Belfast City to Heathrow flights
Belfast Intl to London City flights
Belfast City to London City flights
Belfast Intl to Stansted flights
Belfast Intl to Manchester flights
Belfast City to Stansted flights
Belfast Intl to Liverpool flights
Belfast City to Manchester flights
Belfast City to Luton flights
Belfast Intl to Edinburgh flights
Belfast Intl to Birmingham flights
Belfast City to Liverpool flights
Belfast City to Edinburgh flights
Belfast Intl to Southend flights
Belfast Intl to Southampton flights
Belfast City to Birmingham flights
Belfast Intl to Bristol flights
Belfast Intl to Leeds flights
Belfast City to Southampton flights
Belfast City to Leeds flights
Belfast Intl to Newcastle upon Tyne flights
Belfast City to Bristol flights
Belfast City to Newcastle upon Tyne flights
Belfast City to Southend flights
Derry to Heathrow flights
Belfast Intl to Exeter flights
Derry to Liverpool flights
Belfast City to Exeter flights
Belfast City to East Midlands flights
Belfast Intl to East Midlands flights
Derry to Stansted flights
Belfast City to Doncaster flights
Belfast Intl to Doncaster flights

Top 6 airlines flying from Belfast to London

Discover the top 6 airlines that operate flights from Belfast 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 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£26Average£52FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£29Average£85FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£50Average£63FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£74Average£152FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£129Average£216FlexibilityNo cancel feeOn-time79%
Search Loganair flights
Aer LingusCheapest£170Average£219FlexibilityNo 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 Belfast 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 Belfast today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to London for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to London from Belfast? 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 Belfast to London become cheaper?

Yes! Start tracking prices for Belfast to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.