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Cheap flights from Belfast Intl Airport to London from £23

BFS — LON
12 Nov — 19 Nov1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Belfast Intl to London are usually found in March or November, booked 80 days in advance, depart on a Thursday or Sunday and return on a Tuesday

Cheap flight deals from Belfast Intl to London

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to London

Thu 5/1116:05 -
Nonstop1h 10m
Sun 8/1109:00 -
Nonstop1h 20m
Deal found 8/10£44
Tue 13/1008:50 -
Nonstop1h 20m
Tue 13/1022:00 -
Nonstop1h 20m
Deal found 8/10£44
Fri 6/1121:05 -
Nonstop1h 10m
Sun 8/1109:00 -
Nonstop1h 20m
Deal found 8/10£45
Thu 5/1106:20 -
Nonstop1h 20m
Sun 8/1108:50 -
Nonstop1h 20m
Deal found 8/10£45
Sat 7/1113:10 -
Nonstop1h 10m
Sun 8/1109:00 -
Nonstop1h 20m
Deal found 8/10£45
Sat 7/1119:05 -
Nonstop1h 20m
Sun 8/1108:45 -
Nonstop1h 20m
Deal found 8/10£45
Tue 13/1020:15 -
Nonstop1h 20m
Wed 21/1022:00 -
Nonstop1h 20m
Deal found 11/10£46
Fri 20/1121:05 -
Nonstop1h 10m
Sat 21/1107:00 -
Nonstop1h 20m
Deal found 9/10£47
Thu 26/1114:45 -
Nonstop1h 20m
Thu 3/1208:15 -
Nonstop1h 20m
Deal found 12/10£47
Fri 13/1119:25 -
Nonstop1h 15m
Sun 15/1108:50 -
Nonstop1h 20m
Deal found 10/10£48
Fri 13/1119:25 -
Nonstop1h 15m
Sun 22/1108:50 -
Nonstop1h 20m
Deal found 10/10£48
Fri 4/1221:05 -
Nonstop1h 10m
Fri 11/1207:00 -
Nonstop1h 20m
Deal found 12/10£49

Find flight deals from Belfast Intl to London

Round-trip from

£44

One-way from

£23

Popular in

July

Cheapest in

March

Average price

£67

Good round-trip deal

£40 or less

Good one-way deal

£22 or less
easyJet
  • easyJet
  • 5/11-8/11
  • Nonstop
  • 2h 30m total
  • Belfast to London
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easyJet
  • easyJet
  • 20/10-31/12
  • Nonstop
  • 1h 10m total
  • Belfast to London
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£20 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 October 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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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Belfast Intl Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastLondon

BFS Belfast Intl - STN London Stansted

BFSSTN

Belfast Intl

Sun 18/10

07:00-08:20

Nonstop1h 20m

London Stansted

Wed 31/12

00:00-00:00

Nonstop0h 00m

£23

BelfastLondon

BFS Belfast Intl - STN London Stansted

BFSSTN

Belfast Intl

Thu 29/10

06:30-07:50

Nonstop1h 20m

London Stansted

Wed 31/12

00:00-00:00

Nonstop0h 00m

£24
Fastest return journey

BelfastLondon

BFS Belfast Intl - LTN London Luton

BFSLTN

Belfast Intl

Sun 14/2

10:05-11:15

Nonstop1h 10m

London Luton

Wed 31/12

00:00-00:00

Nonstop0h 00m

£26

BelfastLondon

BFS Belfast Intl - LTN London Luton

BFSLTN

Belfast Intl

Tue 16/2

08:50-10:00

Nonstop1h 10m

London Luton

Wed 31/12

00:00-00:00

Nonstop0h 00m

£26

BelfastLondon

BFS Belfast Intl - LTN London Luton

BFSLTN

Belfast Intl

Thu 22/10

15:55-17:05

Nonstop1h 10m

London Luton

Wed 31/12

00:00-00:00

Nonstop0h 00m

£26

BelfastLondon

BFS Belfast Intl - LGW London Gatwick

BFSLGW

Belfast Intl

Fri 22/1

21:10-22:35

Nonstop1h 25m

London Gatwick

Wed 31/12

00:00-00:00

Nonstop0h 00m

£29

BelfastLondon

BFS Belfast Intl - LGW London Gatwick

BFSLGW

Belfast Intl

Sun 24/1

15:25-16:50

Nonstop1h 25m

London Gatwick

Wed 31/12

00:00-00:00

Nonstop0h 00m

£29

BelfastLondon

BFS Belfast Intl - LTN London Luton

BFSLTN

Belfast Intl

Fri 11/12

21:05-22:15

Nonstop1h 10m

London Luton

Wed 31/12

00:00-00:00

Nonstop0h 00m

£29

BelfastLondon

BFS Belfast Intl - LTN London Luton

BFSLTN

Belfast Intl

Mon 9/11

06:40-07:50

Nonstop1h 10m

London Luton

Wed 31/12

00:00-00:00

Nonstop0h 00m

£29

BelfastLondon

BFS Belfast Intl - LTN London Luton

BFSLTN

Belfast Intl

Tue 8/12

20:35-21:45

Nonstop1h 10m

London Luton

Wed 31/12

00:00-00:00

Nonstop0h 00m

£29

Flights are sorted by cheapest return flights first.

Deals found on 8/10

Showing 1-10 of 60 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Belfast Intl Airport to London

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

Currently, March is the cheapest month in which you can book a flight from Belfast Intl Airport to London (average of £70). Flying from Belfast Intl Airport to London in July is currently the most expensive (average of £122). 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?

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 20% on airfare.

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

Airfare is below average for this route at the moment.
Belfast Intl Airport to London flights typically cost between £45 and £100 in November.
The cheapest return price found within the last 5 days was £44 on easyJet (5 Nov–8 Nov).

How often are flights from Belfast to London delayed?

About 14% of weekly flights between Belfast and London have experienced delays in the past year, with the average delay time being 108 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?

Wednesday 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, Ryanair have had the lowest number of delays on this route, with just 13% of flights being delayed.

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

Booking 84 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 day to fly from Belfast Intl Airport to London?

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

Reviews of airlines servicing London

See what other customers who have flown with easyJet,British Airways, andRyanair 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.
easyJet
6.9
Okay
1,924 reviews
Check prices

Crew

7.7

Entertainment

5.5

Comfort

6.8

Overall

6.9

Food

5.9

Boarding

6.7

Reviews

1 / 20
6.0
Good

Aleksandra,Sept 2026

RMU - LGW

Not sure Why there is no N/A option in questions as there was definitely no entertainment on EasyJet. Or food unless one pays for the dubious plastic-wrapped “ food”.
easyJet
6.9
Okay
1,924 reviews
easyJet
6.9
Okay
1,924 reviews
Check prices

Crew

7.7

Entertainment

5.5

Comfort

6.8

Overall

6.9

Food

5.9

Boarding

6.7

Reviews

1 / 20
6.0
Good

Aleksandra,Sept 2026

RMU - LGW

Not sure Why there is no N/A option in questions as there was definitely no entertainment on EasyJet. Or food unless one pays for the dubious plastic-wrapped “ food”.
British Airways
6.7
Okay
8,261 reviews
easyJet
6.9
Okay
1,924 reviews
Check prices

Crew

7.7

Entertainment

5.5

Comfort

6.8

Overall

6.9

Food

5.9

Boarding

6.7

Reviews

1 / 20
6.0
Good

Aleksandra,Sept 2026

RMU - LGW

Not sure Why there is no N/A option in questions as there was definitely no entertainment on EasyJet. Or food unless one pays for the dubious plastic-wrapped “ food”.
Ryanair
6.5
Okay
easyJet
6.9
Okay
1,924 reviews
Check prices

Crew

7.7

Entertainment

5.5

Comfort

6.8

Overall

6.9

Food

5.9

Boarding

6.7

Reviews

1 / 20
6.0
Good

Aleksandra,Sept 2026

RMU - LGW

Not sure Why there is no N/A option in questions as there was definitely no entertainment on EasyJet. Or food unless one pays for the dubious plastic-wrapped “ food”.

Related info for your journey

  • How long is the flight from Belfast Intl Airport to London?

    For as low as £45, easyJet can have you in London from Belfast Intl Airport in 1h 10m. The distance from Belfast Intl Airport to London is about 308 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 £18. Additional return tickets that might be worth considering are offered by easyJet and British Airways, with the lowest prices starting at £20 and £92, respectively. You may be able to fly from Belfast Intl Airport to London for 74% 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 £18 and £53 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, March is the cheapest month in which you can book a flight from Belfast Intl Airport to London (average of £70). Flying from Belfast Intl Airport to London in July is currently the most expensive (average of £122). 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
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Gatwick
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Eastbourne
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Southend-on-Sea
Barnet
Enfield
Southall
Watford
Kingston upon Thames
Dagenham
Dover

Browse thousands of different options on Cheapflights for your next trip

Fly from Belfast Intl to London on these airlines

easyJet flights from Belfast Intl to London
Ryanair flights from Belfast Intl to London

Top 3 airlines flying from Belfast Intl to London

AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£18Average£67FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£20Average£85FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£92Average£169FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

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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.

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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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