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Cheap flights from Belfast Intl Airport to London Heathrow Airport from £86

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 Heathrow Airport departing on 28/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Belfast Intl Airport to London

Cheap return flights

These are some of the best return flight deals from Belfast Intl Airport to London that have been recently found on momondo from popular airlines, departing in the coming months.
17:55 - 21:50BFS-LHR
3h 55m1 stop
18:15 - 21:55LHR-BFS
3h 40m1 stop
man., 28 apr. - tir., 29 apr.
16:55 - 21:10BFS-LHR
4h 15m1 stop
21:40 - 08:10LHR-BFS
10h 30m1 stop
fre., 28 mar. - søn., 30 mar.
16:55 - 21:10BFS-LHR
4h 15m1 stop
21:40 - 07:05LHR-BFS
9h 25m1 stop
fre., 28 mar. - man., 31 mar.
17:05 - 21:10BFS-LHR
4h 05m1 stop
06:45 - 10:30LHR-BFS
3h 45m1 stop
fre., 25 apr. - man., 28 apr.
07:00 - 13:35BFS-LHR
6h 35m1 stop
07:55 - 12:40LHR-BFS
4h 45m1 stop
lør., 29 mar. - lør., 5 apr.
17:05 - 21:10BFS-LHR
4h 05m1 stop
21:45 - 06:50LHR-BFS
9h 05m1 stop
fre., 4 apr. - lør., 5 apr.
16:40 - 21:50BFS-LHR
5h 10m1 stop
12:30 - 16:40LHR-BFS
4h 10m1 stop
tir., 1 apr. - tor., 3 apr.
15:05 - 22:35BFS-LHR
7h 30m1 stop
12:30 - 16:40LHR-BFS
4h 10m1 stop
ons., 2 apr. - tor., 3 apr.
06:15 - 16:15BFS-LHR
10h 00m1 stop
18:10 - 22:00LHR-BFS
3h 50m1 stop
fre., 21 mar. - man., 24 mar.
07:10 - 18:10BFS-LHR
11h 00m1 stop
15:15 - 18:50LHR-BFS
3h 35m1 stop
tor., 20 mar. - man., 24 mar.

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 £94. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Belfast Intl Airport averaging around £95.

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 £105. 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 £130.

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 £242. 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 £725 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 26 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £120 when searching 26 weeks out.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 £90 on momondo.

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

As of February 2025, prices for Belfast Intl Airport to London Heathrow Airport flights are approximately 55% cheaper 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

Best price found

£86

Fastest flight time

3h 20m

Direct flights

None
The best one-way flight to London Heathrow Airport from Belfast Intl Airport in the past 72 hours is £86. The best return flight deal from Belfast Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is £157.
The fastest flight from Belfast Intl Airport to London Heathrow Airport takes 3h 20m
There are no direct flights from Belfast Intl Airport to London Heathrow Airport. Popular non-direct route for this connection is Belfast Intl Airport - London Heathrow Airport.

  • 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 3h 20m.

  • 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 £44Free CancellationRating
6.9
1,816 reviews
Search easyJet flights
British AirwaysPriceFrom £78Free CancellationRating
6.6
6,762 reviews
Search British Airways flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Milton Keynes
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Stratford-upon-Avon
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Ipswich
Northampton
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Maidstone
Margate
Hounslow
Canterbury
Salisbury
Ilford
Dartford
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Swanage
Winchester

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.


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