Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Belfast Intl Airport to London from £68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast Intl Airport to London departing on 22/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Belfast Intl Airport to London

Cheap return flights

Multiple Airlines Logo
17:00 - 16:40BFS-LHR
23h 40m1 stop
Multiple Airlines Logo
15:30 - 14:05LHR-BFS
22h 35m2 stops
£221Multiple Airlines
Find Deal
Sun, 14 Dec - Wed, 17 Dec
Multiple Airlines Logo
08:40 - 14:55BFS-LHR
6h 15m2 stops
Multiple Airlines Logo
06:15 - 12:10LHR-BFS
5h 55m1 stop
£241Multiple Airlines
Find Deal
Mon, 13 Oct - Mon, 20 Oct
Multiple Airlines Logo
12:35 - 21:25BFS-LHR
8h 50m1 stop
Multiple Airlines Logo
06:15 - 14:55LHR-BFS
8h 40m1 stop
£255Multiple Airlines
Find Deal
Sat, 11 Oct - Mon, 13 Oct
Multiple Airlines Logo
05:30 - 13:25BFS-LHR
7h 55m1 stop
Multiple Airlines Logo
15:10 - 22:30LHR-BFS
7h 20m2 stops
£256Multiple Airlines
Find Deal
Sun, 2 Nov - Thu, 6 Nov
Multiple Airlines Logo
05:30 - 13:25BFS-LHR
7h 55m1 stop
Multiple Airlines Logo
12:10 - 20:15LHR-BFS
8h 05m2 stops
£263Multiple Airlines
Find Deal
Sun, 2 Nov - Wed, 5 Nov
Multiple Airlines Logo
15:30 - 21:25BFS-LHR
5h 55m1 stop
Multiple Airlines Logo
06:15 - 14:55LHR-BFS
8h 40m1 stop
£267Multiple Airlines
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Multiple Airlines Logo
14:15 - 12:40BFS-LHR
22h 25m2 stops
Multiple Airlines Logo
06:00 - 22:25LHR-BFS
16h 25m2 stops
£268Multiple Airlines
Find Deal
Wed, 10 Dec - Mon, 15 Dec
Multiple Airlines Logo
14:35 - 19:15BFS-LHR
4h 40m1 stop
Multiple Airlines Logo
20:45 - 09:45LHR-BFS
13h 00m2 stops
£282Multiple Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Multiple Airlines Logo
14:35 - 19:15BFS-LHR
4h 40m1 stop
Multiple Airlines Logo
12:10 - 22:35LHR-BFS
10h 25m2 stops
£283Multiple Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Multiple Airlines Logo
17:00 - 08:15BFS-LHR
15h 15m1 stop
Multiple Airlines Logo
15:15 - 21:40LHR-BFS
6h 25m1 stop
£286Multiple Airlines
Find Deal
Sun, 14 Dec - Wed, 17 Dec

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 16 September 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Sun 14/12

17:00-16:40

1 stop23h 40m

London Heathrow

Wed 17/12

15:30-14:05

2 stops22h 35m

£221

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Mon 13/10

08:40-14:55

2 stops6h 15m

London Heathrow

Mon 20/10

06:15-12:10

1 stop5h 55m

£241

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Sat 11/10

12:35-21:25

1 stop8h 50m

London Heathrow

Mon 13/10

06:15-14:55

1 stop8h 40m

£255

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Sun 2/11

05:30-13:25

1 stop7h 55m

London Heathrow

Thu 6/11

15:10-22:30

2 stops7h 20m

£256

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Sun 2/11

05:30-13:25

1 stop7h 55m

London Heathrow

Wed 5/11

12:10-20:15

2 stops8h 05m

£263

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Mon 22/9

15:30-21:25

1 stop5h 55m

London Heathrow

Mon 29/9

06:15-14:55

1 stop8h 40m

£267

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Wed 10/12

14:15-12:40

2 stops22h 25m

London Heathrow

Mon 15/12

06:00-22:25

2 stops16h 25m

£268

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Wed 29/10

14:35-19:15

1 stop4h 40m

London Heathrow

Wed 5/11

20:45-09:45

2 stops13h 00m

£282

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Wed 29/10

14:35-19:15

1 stop4h 40m

London Heathrow

Wed 5/11

12:10-22:35

2 stops10h 25m

£283

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Sun 14/12

17:00-08:15

1 stop15h 15m

London Heathrow

Wed 17/12

15:15-21:40

1 stop6h 25m

£286

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Belfast Intl Airport to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London Heathrow Airport?

In general, January is the cheapest month to fly from Belfast Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £88. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Belfast Intl Airport averaging around £105.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Belfast Intl Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as £98. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £121.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Belfast Intl Airport to London Heathrow Airport in the evening for as low as £174. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £689 on average. Flights to London Heathrow Airport from Belfast Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Belfast Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £120 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Belfast Intl Airport for as low as £84 on momondo.

How have Belfast Intl Airport to London Heathrow Airport flight prices changed over time?

As of September 2025, prices for Belfast Intl Airport to London Heathrow Airport flights are approximately 60% more expensive when compared to flights at the same time last year.

When to book flights from Belfast Intl Airport to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Belfast Intl Airport to London Heathrow Airport (BFS to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to London Heathrow Airport

Direct flights

None
There are no direct flights from Belfast Intl Airport to London Heathrow Airport. There are no popular flight routes from Belfast Intl Airport to London Heathrow Airport.
Search flight deals

  • How far is Belfast Intl to London Heathrow by plane?

    Belfast Intl and London Heathrow are 324.6 mi apart from one another. A reasonable flight in good conditions will take 4h 30m.

  • When did momondo last update prices for flights from Belfast Intl Airport to London Heathrow Airport?

    Prices for flights from Belfast Intl Airport to London Heathrow Airport refresh daily.

  • How many operators does momondo search for flights from Belfast Intl Airport to London Heathrow Airport?

  • How old do you have to be to fly from Belfast Intl Airport to London Heathrow Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Belfast Intl Airport to London Heathrow Airport?

Best airlines flying from Belfast Intl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from Belfast Intl Airport to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £34Free CancellationRating
6.9
1,820 reviews
Search easyJet flights
British AirwaysPriceFrom £74Free CancellationRating
6.7
7,363 reviews
Search British Airways flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Luton
Milton Keynes
Maidstone
Gatwick
Slough
Northampton
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Guildford
Swanage
Poole
Colchester
Worthing
Salisbury
Chelmsford

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to London . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Belfast to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Belfast which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Belfast to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Belfast.

I’m not ready to book a flight from Belfast to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Belfast to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 16/10
Thu 23/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London