LHR

£54 Find Cheap Flights from Belfast to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Heathrow departing on 17/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to London, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£84
Overall average: £113
British Airways
Tue 3/3Wed 4/3
BHD - LHR • Direct
Cheapest one-way flight
£54
Typical prices: £57-£126
British Airways
Wed 17/12
BHD - LHR • Direct
Top airlines
British Airways
Cheapest • from £84 (return)
easyJet
Best reviews • 6.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BHD-LHR
Cheapest • 29% average savings
BHD-LHR
Most popular
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belfast to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Belfast to Heathrow

Tue, 3 Mar - Wed, 4 Mar
British Airways Logo
19:25 - 20:45BHD-LHR
1h 20mdirect
British Airways Logo
07:00 - 08:25LHR-BHD
1h 25mdirect
£84British Airways
Find Deal
Fri, 13 Mar - Tue, 17 Mar
British Airways Logo
06:45 - 08:20BHD-LHR
1h 35mdirect
British Airways Logo
06:15 - 07:40LHR-BHD
1h 25mdirect
£85British Airways
Find Deal
Mon, 19 Jan - Mon, 19 Jan
British Airways Logo
09:15 - 10:45BHD-LHR
1h 30mdirect
British Airways Logo
17:10 - 18:40LHR-BHD
1h 30mdirect
£88British Airways
Find Deal
Thu, 8 Jan - Thu, 8 Jan
British Airways Logo
06:35 - 08:10BHD-LHR
1h 35mdirect
British Airways Logo
15:05 - 16:35LHR-BHD
1h 30mdirect
£89British Airways
Find Deal
Tue, 21 Apr - Mon, 4 May
British Airways Logo
13:40 - 15:00BHD-LHR
1h 20mdirect
British Airways Logo
07:45 - 09:05LHR-BHD
1h 20mdirect
£91British Airways
Find Deal
Sun, 14 Dec - Sun, 28 Dec
British Airways Logo
06:30 - 08:05BHD-LHR
1h 35mdirect
British Airways Logo
06:50 - 08:15LHR-BHD
1h 25mdirect
£91British Airways
Find Deal
Sun, 14 Dec - Sun, 28 Dec
British Airways Logo
06:30 - 08:05BHD-LHR
1h 35mdirect
British Airways Logo
06:50 - 08:15LHR-BHD
1h 25mdirect
£92British Airways
Find Deal
Sat, 20 Dec - Fri, 2 Jan
British Airways Logo
18:00 - 19:20BHD-LHR
1h 20mdirect
British Airways Logo
06:05 - 07:30LHR-BHD
1h 25mdirect
£93British Airways
Find Deal
Mon, 8 Dec - Sun, 14 Dec
Multiple Airlines Logo
12:00 - 21:45BHD-LHR
9h 45m1 stop
Multiple Airlines Logo
07:45 - 09:10LHR-BHD
1h 25mdirect
£183Multiple Airlines
Find Deal
Wed, 25 Feb - Sat, 28 Feb
KLM Logo
06:30 - 16:05BHD-LHR
9h 35m1 stop
KLM Logo
14:05 - 21:00LHR-BHD
6h 55m1 stop
£183KLM
Find Deal
Booking Insights

KAYAK's insights & trends for Belfast to Heathrow flights

Get data-powered insights and trends into flights from Belfast to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Belfast to London Heathrow Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Belfast to London Heathrow Airport departing in March.

What is the cheapest Belfast to London Heathrow Airport flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The absolute cheapest return flight from Belfast to London Heathrow Airport costs £95 on the route between Belfast City Airport (BHD) and London Heathrow Airport (LHR). However, over the past month, flights between Londonderry (LDY) and London Heathrow Airport (LHR) were, on average, 29% cheaper than other Belfast-London Heathrow Airport routes. The most popular route is between Belfast City Airport (BHD) and London Heathrow Airport (LHR).

What’s the cheapest day of the week to fly from Belfast to London Heathrow Airport?

The average price of all round-trip flights from Belfast to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

For Belfast to London Heathrow Airport, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from London Heathrow Airport back to Belfast, the best deals are generally found on Monday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Belfast to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Belfast to London Heathrow Airport is January, where tickets cost £97 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £142 and £142 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Belfast to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Belfast to London Heathrow Airport, you should book around 5 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know - Cheap tickets from Belfast to London Heathrow Airport

Cheapest flight£52
Flight from Belfast City Airport to London Heathrow Airport

When to book flights from Belfast to Heathrow

Are your dates flexible? Find out the best times to travel from Belfast to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Belfast to London Heathrow Airport flights

  • What is the cheapest flight from Belfast to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Belfast to London Heathrow Airport was £54 for a one-way ticket and £84 for a return.

  • Which airports will I be using when flying from Belfast to London Heathrow Airport?

    Belfast is served by 2 major airports and there is only 1 main airport in London Heathrow Airport. You will leave Belfast from one of these airports: Belfast Intl or Belfast City. You will be arriving at London Heathrow.

  • Which aircraft models fly most regularly from Belfast to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Belfast to London Heathrow Airport?

    oneworld is the only airline alliance operating flights between Belfast and London Heathrow Airport.

  • How does KAYAK find such low prices on flights from Belfast to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Belfast to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Belfast to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Belfast is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Belfast to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Belfast with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Belfast up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Belfast to London Heathrow Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Belfast to London Heathrow.
Find which airlines fly direct from Belfast to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Belfast to London Heathrow

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Direct returns

London Heathrow to Belfast

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Reviews of the top airlines flying from Belfast to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Belfast to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Belfast to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.9
easyJetOverall score based on 1841 reviews
6.7Comfort
7.6Crew
5.9Food
5.5Entertainment
6.7Boarding
Airline reviews

Nice to fly out of Orly smaller easier to navigate airport. Being able to receive boarding pass well in advance of trip was comforting to know all travel was in order.

8.0 ExcellentBarbara, Oct 2025ORY - VCE
Read more easyJet reviews

Nice to fly out of Orly smaller easier to navigate airport. Being able to receive boarding pass well in advance of trip was comforting to know all travel was in order.

Liked. The check-in was pretty quick as they had 5 desks working.

Generally a good experience except for boarding in Naples on the flight back to London. We were all standing around for at least 20 minutes maybe longer as there was no seating.

Seats, WC,sizes for today's generation adults, and if technical problems arise a complimentary coffee, water nice for waiting one hours, the rest is perfect (pilot and cabin crew)

Boarding was smooth and quick. Flight departed on time. Equally evacuation upon landing was from both the front door and the back doors. Bags were on the conveyor belts before I got there. Excellent service.

The terminals are far away, be prepared to walk. Also, You climb stairs to the plane since there are no aero bridges. Boarding was haphazard not in multiple groups, so stand in line early. Hard to find place to stow cabin baggage if you are behind in the line. You can purchase food on the plane. There are vegetarian options.

First -the flight was late - more than two hours Second, not even a bottle of water at bord to give for free for this inconvenience. Three-at landing ive realised that I've lost one of my ear plug headphones and been very desperate to find it with my torch, the crew not helped at all more than that they asked to leave the plane as everyone did before me. This was the last flight from that day- extra 5 min for me with a bit of help from crew - would have bring a super review. I guess this days humanity disappeared!

I got caught using a stolen credit card number. Michelle Siziba is my name Nice to London Gatwick on 7/31/25.

Not happy with price of luggage or that we had no choice but to pay whether cabin or hold. I didn't book seats but this is unnecessary extra money along with suitcase

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

For a business class ticket the service was very mediocre. We had to ask for coffee after a meal and the service was grudging like we were putting them out. The leg from BOM to LHR was especially bad and the toilets had no water. It was disgusting. Looks like self service is the new model for Business Class. No Thank you. I will look elsewhere

The boarding process was very poorly organized. Too many people had way to much carry on and resulted in loading overhead bins being the gating factor. Time for change.

I do not understand how BA takes coach seating and has people paying for business class. There is no leg room, seats don’t recline and no entertainment to be had unless you brought your own.

It's useless to complain about the space and the back of the seat, making you sitting vertically like a candle. it's your business model. The "food" - there is no food. But I don't care about the food. It's the seating.

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

Overall, it was basically good. No serious complaints on my end.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The aircraft was okay and the crew were friendly, but the seat space felt too tight and the food could be better. Overall, nice service but room for improvement.

The flat beds. Other than that, the place was not clean.

Everything you need to know for your flight from Belfast to Heathrow

Information on your arrival and departure airports