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Cheap flights from London Heathrow Airport to Belfast from £79

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Belfast departing on 13/10. 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

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Find the cheapest flights from London Heathrow Airport to Belfast

Cheap return flights

Logo
21:55 - 08:55LHR-BFS
11h 00m1 stop
Logo
17:40 - 20:55BFS-LHR
3h 15m1 stop
£156
Find Deal
Sat, 30 Aug - Wed, 3 Sep
Logo
21:00 - 07:00LHR-BFS
10h 00m1 stop
Logo
12:25 - 18:50BFS-LHR
6h 25m1 stop
£160
Find Deal
Fri, 29 Aug - Tue, 2 Sep
Logo
06:45 - 11:20LHR-BFS
4h 35m1 stop
Logo
16:40 - 21:50BFS-LHR
5h 10m1 stop
£162
Find Deal
Wed, 10 Sep - Tue, 16 Sep
Logo
21:10 - 07:45LHR-BFS
10h 35m1 stop
Logo
23:10 - 07:25BFS-LHR
8h 15m1 stop
£165
Find Deal
Wed, 13 Aug - Tue, 19 Aug
Logo
06:15 - 09:15LHR-BFS
3h 00m1 stop
Logo
16:40 - 21:50BFS-LHR
5h 10m1 stop
£172
Find Deal
Mon, 13 Oct - Tue, 14 Oct
Logo
08:15 - 17:15LHR-BFS
9h 00m1 stop
Logo
12:25 - 18:50BFS-LHR
6h 25m1 stop
£172
Find Deal
Wed, 27 Aug - Tue, 2 Sep
Logo
06:45 - 11:20LHR-BFS
4h 35m1 stop
Logo
15:05 - 20:05BFS-LHR
5h 00m1 stop
£173
Find Deal
Wed, 27 Aug - Wed, 3 Sep
Logo
17:35 - 22:05LHR-BFS
4h 30m1 stop
Logo
15:05 - 21:40BFS-LHR
6h 35m1 stop
£178
Find Deal
Sun, 12 Oct - Wed, 15 Oct
Logo
21:50 - 07:15LHR-BFS
9h 25m1 stop
Logo
12:20 - 19:55BFS-LHR
7h 35m1 stop
£178
Find Deal
Mon, 1 Sep - Thu, 4 Sep
Logo
08:15 - 17:15LHR-BFS
9h 00m1 stop
Logo
15:10 - 21:50BFS-LHR
6h 40m1 stop
£180
Find Deal
Wed, 27 Aug - Thu, 28 Aug

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Belfast Intl 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 1 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 30/8

21:55-08:55

1 stop11h 00m

Belfast Intl

Wed 3/9

17:40-20:55

1 stop3h 15m

£156

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 29/8

21:00-07:00

1 stop10h 00m

Belfast Intl

Tue 2/9

12:25-18:50

1 stop6h 25m

£160

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 10/9

06:45-11:20

1 stop4h 35m

Belfast Intl

Tue 16/9

16:40-21:50

1 stop5h 10m

£162

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 13/8

21:10-07:45

1 stop10h 35m

Belfast Intl

Tue 19/8

23:10-07:25

1 stop8h 15m

£165

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 13/10

06:15-09:15

1 stop3h 00m

Belfast Intl

Tue 14/10

16:40-21:50

1 stop5h 10m

£172

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 27/8

08:15-17:15

1 stop9h 00m

Belfast Intl

Tue 2/9

12:25-18:50

1 stop6h 25m

£172

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 27/8

06:45-11:20

1 stop4h 35m

Belfast Intl

Wed 3/9

15:05-20:05

1 stop5h 00m

£173

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 12/10

17:35-22:05

1 stop4h 30m

Belfast Intl

Wed 15/10

15:05-21:40

1 stop6h 35m

£178

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 1/9

21:50-07:15

1 stop9h 25m

Belfast Intl

Thu 4/9

12:20-19:55

1 stop7h 35m

£178

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 27/8

08:15-17:15

1 stop9h 00m

Belfast Intl

Thu 28/8

15:10-21:50

1 stop6h 40m

£180

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Belfast from

How to get the cheapest flight ticket from London Heathrow Airport to Belfast Intl 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 typical price of a round-trip flight between London Heathrow Airport and Belfast Intl Airport?

What is the cheapest month to fly to Belfast Intl Airport?

The month of January is, on average, the cheapest month to fly to Belfast Intl Airport from London Heathrow Airport, with most prices found around £100. If you’re not able to fly to Belfast Intl Airport in January, then March is your next best option. Flight prices from London Heathrow Airport to Belfast Intl Airport during March average around £100.

What is the cheapest day to depart on your flight to Belfast Intl Airport?

The cheapest day to depart from London Heathrow Airport to Belfast Intl Airport is on a Wednesday when prices can be found for as low as £63. The most expensive day to fly to Belfast Intl Airport is Sunday, with ticket prices averaging around £73.

What is the cheapest time of day to depart on your flight to Belfast Intl Airport?

The cheapest time of day to fly to Belfast Intl Airport is in the morning when flights can be purchased for as low as £85. In the afternoon is when there is more demand to fly to Belfast Intl Airport, so prices are often more expensive at around £113 per ticket.

How far in advance should I book a flight to Belfast Intl Airport?

You are more likely to see cheaper flights to Belfast Intl Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast Intl Airport for around £128 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast Intl Airport from London Heathrow Airport for as low as £88 on momondo.

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

As of August 2025, prices for London Heathrow Airport to Belfast Intl Airport flights are approximately 0% more expensive when compared to flights at the same time last year.

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

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

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

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

Best price found

£79

Fastest flight time

3h 00m

Direct flights

None
The best one-way flight to Belfast Intl Airport from London Heathrow Airport in the past 72 hours is £79. The best return flight deal from London Heathrow Airport to Belfast Intl Airport found on momondo in the last 72 hours is £156.
The fastest flight from London Heathrow Airport to Belfast Intl Airport takes 3h 00m
There are no direct flights from London Heathrow Airport to Belfast Intl Airport. Popular non-direct route for this connection is London Heathrow Airport - Belfast Intl Airport.
Search flight deals

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

    A flight from London Heathrow to Belfast Intl will travel around 324.6 mi. Typically, this will take 3h 00m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from London Heathrow Airport to Belfast Intl Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £31Free CancellationRating
6.9
1,822 reviews
Search easyJet flights
British AirwaysPriceFrom £80Free CancellationRating
6.6
7,222 reviews
Search British Airways flights

Travelling to a place near Belfast?

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

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

It is quick and easy to find London to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

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

Flights from London to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Belfast from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Belfast from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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