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Cheap flights from London to Belfast Intl Airport from £36

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BFS
3 Sep — 10 Sep1
1 adult

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

Cheap flight deals from London to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Belfast Intl (BFS). 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 29 August 2025.

Round-trip from

£44

One-way from

£36

Popular in

July

Cheapest in

January

Average price

£95

Good round-trip deal

£43 or less

Good one-way deal

£56 or less
easyJet
  • easyJet
  • 15/9-18/9
  • Nonstop
  • 2h 30m total
  • London to Belfast
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easyJet
  • easyJet
  • 18/9
  • Nonstop
  • 1h 35m 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).
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Cheapest flight prices on average. 10% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from London (LON) to Belfast Intl.
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Price to beat on a one-way flight from London (LON) to Belfast Intl.
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Find flight deals from London to Belfast Intl

Cheapest flights from London to Belfast Intl
Explore the most affordable flight options available from London to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Mon 15/921:10STN - BFS
Nonstop1h 15measyJet
Thu 18/920:05BFS - STN
Nonstop1h 15measyJet
Deal found 28/8£44
Tue 30/919:20LTN - BFS
Nonstop1h 15measyJet
Sat 11/1015:35BFS - LTN
Nonstop1h 10measyJet
Deal found 28/8£44
Thu 11/907:45STN - BFS
Nonstop1h 15mRyanair
Sun 14/908:30BFS - STN
Nonstop1h 20mRyanair
Deal found 29/8£45
Mon 1/921:55LTN - BFS
Nonstop1h 15measyJet
Sun 5/1007:00BFS - LTN
Nonstop1h 10measyJet
Deal found 28/8£45
Wed 10/909:10STN - BFS
Nonstop1h 15mRyanair
Mon 15/921:55BFS - STN
Nonstop1h 20mRyanair
Deal found 29/8£46
Wed 17/913:10LTN - BFS
Nonstop1h 15measyJet
Thu 18/921:00BFS - LTN
Nonstop1h 10measyJet
Deal found 27/8£46
Fri 24/1017:00STN - BFS
Nonstop1h 15mRyanair
Sun 26/1005:45BFS - STN
Nonstop1h 20mRyanair
Deal found 28/8£47
Fri 7/1108:40LGW - BFS
Nonstop1h 30measyJet
Sun 9/1109:25BFS - LGW
Nonstop1h 30measyJet
Deal found 28/8£47
Fri 31/1006:05STN - BFS
Nonstop1h 20mRyanair
Tue 11/1105:45BFS - STN
Nonstop1h 20mRyanair
Deal found 27/8£47
Thu 18/907:10LTN - BFS
Nonstop1h 20measyJet
Thu 18/921:00BFS - LTN
Nonstop1h 10measyJet
Deal found 27/8£47
Tue 14/1006:10LGW - BFS
Nonstop1h 30measyJet
Thu 16/1021:10BFS - LGW
Nonstop1h 35measyJet
Deal found 27/8£48
Wed 17/907:50STN - BFS
Nonstop1h 20mMultiple Airlines
Fri 26/921:40BFS - STN
Nonstop1h 20mMultiple Airlines
Deal found 28/8£48

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Belfast Intl 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 29 August 2025.
Use the filters below to find and compare flights from London to Belfast Intl Airport that are best for you.

Fly from

London

Fly to

Belfast Intl

Route

Depart

Return

Price

LondonBelfast

STN - BFS

STNBFS

London Stansted

Wed 24/9

07:50-09:10

Nonstop1h 20m

Belfast Intl

Wed 1/10

22:05-23:25

Nonstop1h 20m

£44

LondonBelfast

STN - BFS

STNBFS

London Stansted

Sat 20/9

07:50-09:10

Nonstop1h 20m

Belfast Intl

Tue 23/9

06:45-08:05

Nonstop1h 20m

£44

LondonBelfast

STN - BFS

STNBFS

London Stansted

Fri 26/9

17:00-18:15

Nonstop1h 15m

Belfast Intl

Fri 26/9

21:40-23:00

Nonstop1h 20m

£44

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

£44

LondonBelfast

STN - BFS

STNBFS

London Stansted

Mon 15/9

21:10-22:25

Nonstop1h 15m

Belfast Intl

Thu 18/9

06:00-07:20

Nonstop1h 20m

£44

LondonBelfast

STN - BFS

STNBFS

London Stansted

Mon 15/9

21:10-22:25

Nonstop1h 15m

Belfast Intl

Thu 18/9

20:05-21:20

Nonstop1h 15m

£44

LondonBelfast

STN - BFS

STNBFS

London Stansted

Sat 20/9

12:15-13:30

Nonstop1h 15m

Belfast Intl

Sun 21/9

23:30-00:50

Nonstop1h 20m

£44

LondonBelfast

STN - BFS

STNBFS

London Stansted

Thu 11/9

07:45-09:00

Nonstop1h 15m

Belfast Intl

Sun 14/9

08:30-09:50

Nonstop1h 20m

£44

LondonBelfast

LTN - BFS

LTNBFS

London Luton

Tue 30/9

19:20-20:35

Nonstop1h 15m

Belfast Intl

Sat 11/10

15:35-16:45

Nonstop1h 10m

£44

LondonBelfast

STN - BFS

STNBFS

London Stansted

Thu 25/9

07:45-09:00

Nonstop1h 15m

Belfast Intl

Sat 27/9

19:35-20:55

Nonstop1h 20m

£45

Flights are sorted by cheapest return flights first.

Deals found on 27/8

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

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

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

Use this chart to determine the optimal time to book a return flight from London to Belfast Intl. Price data was last updated on 22 August 2025.

The best time to book flights from London to Belfast Intl Airport 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 Intl Airport?

Currently, January is the cheapest month in which you can book a flight from London to Belfast Intl Airport (average of £67). Flying from London to Belfast Intl Airport 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 Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 August 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 23% on flights from London to Belfast Intl Airport by exploring options for tickets in the morning.

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

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

Travellers seeking maximum savings on their London to Belfast Intl Airport flight should consider departing on Friday 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 Intl Airport?

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast Intl. 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 Intl. Reviews last updated 29 August 2025.
Get a feel of what it's like to fly with easyJet, Ryanair, andBritish Airways from London to Belfast Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,817 reviews
Check prices

Food

5.9

Overall

6.9

Boarding

6.7

Crew

7.6

Entertainment

5.5

Comfort

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
1,817 reviews
easyJet
6.9
Okay
1,817 reviews
Check prices

Food

5.9

Overall

6.9

Boarding

6.7

Crew

7.6

Entertainment

5.5

Comfort

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
6.8
Okay
5,153 reviews
easyJet
6.9
Okay
1,817 reviews
Check prices

Food

5.9

Overall

6.9

Boarding

6.7

Crew

7.6

Entertainment

5.5

Comfort

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
7,320 reviews
easyJet
6.9
Okay
1,817 reviews
Check prices

Food

5.9

Overall

6.9

Boarding

6.7

Crew

7.6

Entertainment

5.5

Comfort

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
1,817 reviews
Check prices

Food

5.9

Overall

6.9

Boarding

6.7

Crew

7.6

Entertainment

5.5

Comfort

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 Intl. 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 Intl Airport?

    Airlines like easyJet and Ryanair fly from London to Belfast Intl Airport in about 1h 15m. The time it takes to get you to your destination is usually consistent. The distance between London and Belfast Intl Airport is about 328 mi. All flights are typically direct.

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

    Cheapflights users have booked flights from London to Belfast Intl Airport round-trip from £29. Other airlines that can offer you cheap pricing are easyJet, from £30, and Ryanair, from £43. Ryanair is 55% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London to Belfast Intl Airport (average of £67). Flying from London to Belfast Intl Airport 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

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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Fly from London to Belfast Intl on these airlines

Choose from the following airlines for your flight from London to Belfast Intl. Flights are based on user searches made on Cheapflights and were last updated on 29 August 2025.
easyJet flights from London to Belfast Intl
Ryanair flights from London to Belfast Intl
British Airways flights from London to Belfast Intl

Top 4 airlines flying from London to Belfast Intl

Discover the top 4 airlines that operate flights from London to Belfast Intl. 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 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£29Average£58FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£30Average£70FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£43Average£74FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£78Average£159FlexibilityNo 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 London to Belfast Intl?

Deals for London to Belfast Intl 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 Belfast Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Belfast Intl.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Belfast Intl, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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