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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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LON
26 Feb — 5 Mar1
1 adult

The best prices from Belfast Intl to London are usually found in January or March, booked 55 days in advance, depart on a Friday or Thursday 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 21 February 2025.

Round-trip from

£33

One-way from

£18

Popular in

July

Cheapest in

January

Average price

£63

Good round-trip deal

£36 or less

Good one-way deal

£23 or less
Ryanair
  • Ryanair
  • 21/3-22/3
  • Nonstop
  • 2h 40m total
  • Belfast to London
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easyJet
  • easyJet
  • 5/3
  • Nonstop
  • 1h 30m total
  • Belfast to London
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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. 3% potential price decrease (£2 potential savings vs. average return price).
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Average for round-trip flights in February 2025
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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

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 21 February 2025.

Fri 7/320:30BFS - STN
Nonstop1h 20mRyanair
Sun 9/307:45STN - BFS
Nonstop1h 20mRyanair
Deal found 20/2£33
Wed 5/306:30BFS - LGW
Nonstop1h 30measyJet
Wed 12/308:35LGW - BFS
Nonstop1h 30measyJet
Deal found 18/2£36
Sat 8/313:00BFS - LTN
Nonstop1h 10measyJet
Sun 9/307:05LTN - BFS
Nonstop1h 15measyJet
Deal found 20/2£37
Fri 28/306:00BFS - STN
Nonstop1h 20measyJet
Mon 31/321:10STN - BFS
Nonstop1h 15measyJet
Deal found 19/2£38
Fri 25/422:00BFS - LTN
Nonstop1h 10mMultiple Airlines
Mon 28/408:50LTN - BFS
1 stop7h 05mMultiple Airlines
Deal found 20/2£85
Fri 4/416:40BFS - STN
1 stop4h 30mMultiple Airlines
Sat 5/408:40STN - BFS
Nonstop1h 15mMultiple Airlines
Deal found 19/2£90
Fri 21/215:05BFS - STN
Nonstop1h 20mRyanair
Mon 24/207:30STN - BFS
Nonstop1h 20mRyanair
Deal found 20/2£105
Sun 6/422:55BFS - LGW
1 stop8h 40mMultiple Airlines
Sun 13/407:55LGW - BFS
Nonstop1h 30mMultiple Airlines
Deal found 20/2£112
Mon 28/417:55BFS - LHR
1 stop3h 55mMultiple Airlines
Tue 29/418:15LHR - BFS
1 stop3h 40mMultiple Airlines
Deal found 19/2£157
Fri 4/420:35BFS - SEN
1 stop26h 25measyJet
Wed 9/417:30SEN - BFS
1 stop19h 20measyJet
Deal found 21/2£178
Fri 21/307:00BFS - LCY
1 stop3h 15mMultiple Airlines
Sun 23/320:20LCY - BFS
1 stop10h 30mMultiple Airlines
Deal found 19/2£281

Find flights from Belfast Intl to London within your budget

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 21 February 2025.

Fly from

Belfast Intl

Fly to

London

Route

Depart

Return

Price

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Fri 7/3

20:30-21:50

Nonstop1h 20m

London Stansted

Sun 9/3

07:45-09:05

Nonstop1h 20m

£33

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Wed 5/3

06:30-08:00

Nonstop1h 30m

London Gatwick

Wed 12/3

08:35-10:05

Nonstop1h 30m

£36

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Sat 8/3

13:00-14:10

Nonstop1h 10m

London Luton

Sun 9/3

07:05-08:20

Nonstop1h 15m

£37

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Fri 28/3

06:00-07:20

Nonstop1h 20m

London Stansted

Mon 31/3

21:10-22:25

Nonstop1h 15m

£38

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Fri 25/4

22:00-23:10

Nonstop1h 10m

London Luton

Mon 28/4

08:50-15:55

1 stop7h 05m

£85

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Fri 4/4

16:40-21:10

1 stop4h 30m

London Stansted

Sat 5/4

08:40-09:55

Nonstop1h 15m

£90

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Sun 6/4

22:55-07:35

1 stop8h 40m

London Gatwick

Sun 13/4

07:55-09:25

Nonstop1h 30m

£112

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Mon 28/4

17:55-21:50

1 stop3h 55m

London Heathrow

Tue 29/4

18:15-21:55

1 stop3h 40m

£157

BelfastLondon

BFS - SEN

BFSSEN

Belfast Intl

Fri 4/4

20:35-23:00

1 stop26h 25m

London Southend

Wed 9/4

17:30-12:50

1 stop19h 20m

£178

BelfastLondon

BFS - LCY

BFSLCY

Belfast Intl

Fri 21/3

07:00-10:15

1 stop3h 15m

London City

Sun 23/3

20:20-06:50

1 stop10h 30m

£281

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 22 results
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2
3

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.

Travel insights for flights from Belfast Intl to London

Get recent, data-driven insights about flights from Belfast Intl to London including ideal travel times, pricing trends, and more.

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 14 February 2025.

Booking 55 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, January is the cheapest month in which you can book a flight from Belfast Intl Airport to London (average of £112). Flying from Belfast Intl Airport to London in August is currently the most expensive (average of £163). 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 21 February 2025.

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 at midday tend to be the most expensive. A flight in the evening could potentially save you up to 16% 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 16 December 2024.

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. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 21 February 2025.
See what other customers who have flown with easyJet, Ryanair and Ryanair from Belfast to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,815 reviews
Check prices

Comfort

6.7

Overall

6.9

Entertainment

5.5

Food

5.9

Crew

7.6

Boarding

6.7

Reviews

1 / 20

8.0
Excellent

Robert,Jan 2025

LCA - LGW

Food to be reasonably priced and water is a necessity not a luxury and should be priced accordingly

easyJet
6.9
Okay
1,815 reviews
easyJet
6.9
Okay
1,815 reviews
Check prices

Comfort

6.7

Overall

6.9

Entertainment

5.5

Food

5.9

Crew

7.6

Boarding

6.7

Reviews

1 / 20

8.0
Excellent

Robert,Jan 2025

LCA - LGW

Food to be reasonably priced and water is a necessity not a luxury and should be priced accordingly

Ryanair
6.8
Okay
5,068 reviews
easyJet
6.9
Okay
1,815 reviews
Check prices

Comfort

6.7

Overall

6.9

Entertainment

5.5

Food

5.9

Crew

7.6

Boarding

6.7

Reviews

1 / 20

8.0
Excellent

Robert,Jan 2025

LCA - LGW

Food to be reasonably priced and water is a necessity not a luxury and should be priced accordingly

Ryanair
6.1
Okay
easyJet
6.9
Okay
1,815 reviews
Check prices

Comfort

6.7

Overall

6.9

Entertainment

5.5

Food

5.9

Crew

7.6

Boarding

6.7

Reviews

1 / 20

8.0
Excellent

Robert,Jan 2025

LCA - LGW

Food to be reasonably priced and water is a necessity not a luxury and should be priced accordingly

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.

  • 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 £33. Another option worth looking into is easyJet, starting at £37 return. You may be able to fly from Belfast Intl Airport to London for 47% 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 easyJet. According to our data, you can fly for as low as £18. Users have also found prices from £20 and £21 on Ryanair and Ryanair, 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 Stansted, 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, January is the cheapest month in which you can book a flight from Belfast Intl Airport to London (average of £112). Flying from Belfast Intl Airport to London in August is currently the most expensive (average of £163). 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
Deal
Hounslow
Milton Keynes
Croydon
Gatwick
Slough
Luton
Ilford
Hayes
Eastbourne
Wembley
Southend-on-Sea
Ipswich
Winchester
Maidstone
Crawley
Southall
Watford
Dartford
Stansted

Browse thousands of different options on Cheapflights for your next trip

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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 21 February 2025.
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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£21Average£41FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£30Average£49FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£32Average£73FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£78Average£154FlexibilityNo 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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