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Cheap flights from London to Belfast from £39

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BHD
26 Aug — 2 Sep1
1 adult

Cheapflights Tip: The best prices from London to Belfast are usually found in January or March, booked 43 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from London to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Belfast (BF1). 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 21 August 2025.

Round-trip from

£48

One-way from

£39

Popular in

July

Cheapest in

January

Average price

£93
easyJet
  • easyJet
  • 7/11-9/11
  • Nonstop
  • 2h 50m total
  • London to Belfast
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easyJet
  • easyJet
  • 1/9
  • Nonstop
  • 1h 30m total
  • London to Belfast
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from London to Belfast

Cheapest flights from London to Belfast
Explore the most affordable flight options available from London to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2025.

Fri 7/1120:55LGW - BFS
Nonstop1h 25measyJet
Sun 9/1120:45BFS - LGW
Nonstop1h 25measyJet
Deal found 19/8£48
Sat 25/1021:20STN - BFS
Nonstop1h 15mRyanair
Tue 28/1005:45BFS - STN
Nonstop1h 20mRyanair
Deal found 20/8£48
Mon 15/908:00LTN - BHD
Nonstop1h 20measyJet
Wed 17/909:05BHD - LTN
Nonstop1h 10measyJet
Deal found 20/8£48
Thu 25/905:55LGW - BFS
Nonstop1h 35measyJet
Thu 25/921:10BFS - LGW
Nonstop1h 35measyJet
Deal found 19/8£48
Thu 2/1007:45STN - BFS
Nonstop1h 15mMultiple Airlines
Thu 9/1020:05BFS - STN
Nonstop1h 15mMultiple Airlines
Deal found 17/8£48
Fri 14/1114:35LTN - BHD
Nonstop1h 15measyJet
Mon 17/1110:05BHD - LTN
Nonstop1h 10measyJet
Deal found 20/8£48
Tue 2/913:05LTN - BFS
Nonstop1h 15measyJet
Fri 5/922:00BFS - LTN
Nonstop1h 10measyJet
Deal found 20/8£48
Wed 3/908:25LGW - BFS
Nonstop1h 30measyJet
Wed 10/921:05BFS - LGW
Nonstop1h 25measyJet
Deal found 19/8£49
Tue 16/908:35STN - BFS
Nonstop1h 20measyJet
Wed 17/914:10BFS - STN
1 stop3h 40measyJet
Deal found 18/8£49
Thu 11/907:10LTN - BFS
Nonstop1h 20measyJet
Sat 13/915:35BFS - LTN
Nonstop1h 10measyJet
Deal found 20/8£49
Sat 4/1007:30LGW - BFS
Nonstop1h 30measyJet
Sat 11/1016:30BFS - LGW
Nonstop1h 30measyJet
Deal found 20/8£50
Tue 2/908:35STN - BFS
Nonstop1h 20measyJet
Tue 30/916:40BFS - STN
1 stop5h 25measyJet
Deal found 18/8£50

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Belfast 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 21 August 2025.
Use the filters below to find and compare flights from London to Belfast that are best for you.

Fly from

London

Fly to

Belfast

Route

Depart

Return

Price

LondonBelfast

LGW - BFS

LGWBFS

London Gatwick

Fri 7/11

20:55-22:20

Nonstop1h 25m

Belfast Intl

Sun 9/11

20:45-22:10

Nonstop1h 25m

£48

LondonBelfast

STN - BFS

STNBFS

London Stansted

Sat 25/10

21:20-22:35

Nonstop1h 15m

Belfast Intl

Tue 28/10

05:45-07:05

Nonstop1h 20m

£48

LondonBelfast

LTN - BHD

LTNBHD

London Luton

Mon 22/9

08:00-09:20

Nonstop1h 20m

Belfast City

Wed 24/9

09:05-10:15

Nonstop1h 10m

£48

LondonBelfast

LTN - BHD

LTNBHD

London Luton

Mon 15/9

08:00-09:20

Nonstop1h 20m

Belfast City

Wed 17/9

09:05-10:15

Nonstop1h 10m

£48

LondonBelfast

LTN - BHD

LTNBHD

London Luton

Thu 27/11

18:05-19:20

Nonstop1h 15m

Belfast City

Tue 2/12

12:15-13:25

Nonstop1h 10m

£48

LondonBelfast

LGW - BFS

LGWBFS

London Gatwick

Thu 25/9

05:55-07:30

Nonstop1h 35m

Belfast Intl

Thu 2/10

06:10-07:40

Nonstop1h 30m

£48

LondonBelfast

LGW - BFS

LGWBFS

London Gatwick

Thu 4/9

05:55-07:30

Nonstop1h 35m

Belfast Intl

Thu 18/9

06:10-07:40

Nonstop1h 30m

£48

LondonBelfast

LGW - BFS

LGWBFS

London Gatwick

Wed 3/9

08:25-09:55

Nonstop1h 30m

Belfast Intl

Wed 10/9

06:10-07:40

Nonstop1h 30m

£48

LondonBelfast

LGW - BFS

LGWBFS

London Gatwick

Tue 30/9

06:10-07:40

Nonstop1h 30m

Belfast Intl

Wed 1/10

06:10-07:40

Nonstop1h 30m

£48

LondonBelfast

LGW - BFS

LGWBFS

London Gatwick

Thu 25/9

05:55-07:30

Nonstop1h 35m

Belfast Intl

Thu 25/9

21:10-22:45

Nonstop1h 35m

£48

Flights are sorted by cheapest return flights first.

Deals found on 19/8

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

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

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

Use this chart to determine the optimal time to book a return flight from London to Belfast. Price data was last updated on 8 August 2025.

The best time to book flights from London to Belfast is 43 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 London to Belfast?

Currently, January is the cheapest month in which you can book a flight from London to Belfast (average of £67). Flying from London to Belfast in July is currently the most expensive (average of £90). 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 BFS?

Find hourly flight availability from London to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 August 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 20% on flights from London to Belfast by exploring options for tickets in the morning.

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

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

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

How much does it cost for a return flight from London to Belfast?

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 21 August 2025.
Check out reviews from past customers who have flown with easyJet, Ryanair, andBritish Airways from London to Belfast 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
1,818 reviews
Check prices

Food

5.9

Crew

7.6

Overall

6.9

Entertainment

5.5

Comfort

6.7

Boarding

6.7

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
1,818 reviews
easyJet
6.9
Okay
1,818 reviews
Check prices

Food

5.9

Crew

7.6

Overall

6.9

Entertainment

5.5

Comfort

6.7

Boarding

6.7

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
5,155 reviews
easyJet
6.9
Okay
1,818 reviews
Check prices

Food

5.9

Crew

7.6

Overall

6.9

Entertainment

5.5

Comfort

6.7

Boarding

6.7

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
6.7
Okay
7,291 reviews
easyJet
6.9
Okay
1,818 reviews
Check prices

Food

5.9

Crew

7.6

Overall

6.9

Entertainment

5.5

Comfort

6.7

Boarding

6.7

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
6.2
Okay
easyJet
6.9
Okay
1,818 reviews
Check prices

Food

5.9

Crew

7.6

Overall

6.9

Entertainment

5.5

Comfort

6.7

Boarding

6.7

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 Belfast. 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 London to Belfast?

    A quick flight from London to Belfast can take about 1h 15m. easyJet provides one of the quickest options available for as low as £48. There are 328 mi between London and Belfast. All flights are typically direct.

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

    According to our current data, Ryanair (£29), easyJet (£29), and Ryanair (£43) offers the cheapest pricing from London to Belfast. You may be able to fly from London to Belfast for 55% less than the average price by searching for these airlines.

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

    The most popular route from London to Belfast is London Gatwick - Belfast Intl. You may also consider London Luton - Belfast Intl or London Stansted - Belfast Intl.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London to Belfast (average of £67). Flying from London to Belfast in July is currently the most expensive (average of £90). 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 Belfast

See prices for flight routes from nearby airports that may be better suited for you.
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Bristol to Derry flights
Stansted to Campbeltown flights
Heathrow to Campbeltown flights
Doncaster to Belfast City flights
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Top 5 airlines flying from London to Belfast

Discover the top 5 airlines that operate flights from London to Belfast. 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 21 August 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£29Average£58FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£29Average£77FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£43Average£76FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£78Average£171FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£129Average£178FlexibilityNo cancel feeOn-time79%
Search Loganair 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 Belfast?

Cheapflights helps you search for flights from London to Belfast 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 London to Belfast?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Belfast for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Certainly. Search results for flights to Belfast 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 Belfast become cheaper?

Of course! You can now track prices for flights from London to Belfast and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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