BFS - LHR

£91 Find Cheap Flights from Belfast Intl Airport 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 Intl to Heathrow departing on 3/3. 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
£222
Overall average: £122
Multiple Airlines
Mon 2/3Wed 4/3
BFS - LHR • 1 stop
Cheapest one-way flight
£91
Typical prices: £52-£137
Multiple Airlines
Tue 3/3
BFS - LHR • 2 stops
When to book
5 weeks
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 21% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 Intl to Heathrow (BFS-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast Intl 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 Intl to Heathrow

Mon, 2 Mar - Wed, 4 Mar
Multiple Airlines Logo
07:20 - 12:35
BFS
-
LHR
5h 15m
1 stop
Multiple Airlines Logo
12:55 - 20:15
LHR
-
BFS
7h 20m
1 stop
£222Multiple Airlines
Sun, 15 Feb - Wed, 18 Feb
Multiple Airlines Logo
15:45 - 21:25
BFS
-
LHR
5h 40m
1 stop
Multiple Airlines Logo
06:20 - 14:25
LHR
-
BFS
8h 05m
1 stop
£226Multiple Airlines
Thu, 5 Mar - Sat, 7 Mar
Multiple Airlines Logo
12:05 - 09:00
BFS
-
LHR
20h 55m
2 stops
Multiple Airlines Logo
09:55 - 22:35
LHR
-
BFS
12h 40m
2 stops
£227Multiple Airlines
Sun, 22 Mar - Wed, 25 Mar
Multiple Airlines Logo
07:30 - 16:00
BFS
-
LHR
8h 30m
1 stop
Multiple Airlines Logo
09:55 - 08:05
LHR
-
BFS
22h 10m
2 stops
£241Multiple Airlines
Mon, 2 Mar - Wed, 4 Mar
Multiple Airlines Logo
07:20 - 21:05
BFS
-
LHR
13h 45m
2 stops
Multiple Airlines Logo
12:55 - 20:15
LHR
-
BFS
7h 20m
1 stop
£253Multiple Airlines
Mon, 16 Feb - Thu, 19 Feb
Multiple Airlines Logo
14:40 - 21:25
BFS
-
LHR
6h 45m
1 stop
Multiple Airlines Logo
08:55 - 14:05
LHR
-
BFS
5h 10m
1 stop
£267Multiple Airlines
Fri, 6 Mar - Tue, 10 Mar
Multiple Airlines Logo
14:20 - 21:25
BFS
-
LHR
7h 05m
1 stop
Multiple Airlines Logo
14:45 - 21:40
LHR
-
BFS
6h 55m
1 stop
£276Multiple Airlines
Fri, 13 Feb - Fri, 20 Feb
Multiple Airlines Logo
14:20 - 21:25
BFS
-
LHR
7h 05m
1 stop
Multiple Airlines Logo
06:20 - 13:40
LHR
-
BFS
7h 20m
1 stop
£276Multiple Airlines
Mon, 16 Feb - Wed, 18 Feb
Multiple Airlines Logo
14:40 - 21:25
BFS
-
LHR
6h 45m
1 stop
Multiple Airlines Logo
08:55 - 14:25
LHR
-
BFS
5h 30m
1 stop
£277Multiple Airlines
Thu, 7 May - Tue, 19 May
Multiple Airlines Logo
20:05 - 07:55
BFS
-
LHR
11h 50m
1 stop
Multiple Airlines Logo
19:45 - 10:40
LHR
-
BFS
14h 55m
1 stop
£279Multiple Airlines
Booking Insights

KAYAK's insights & trends for Belfast Intl to Heathrow flights

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

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

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

For Belfast Intl Airport 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 Intl Airport, the best deals are generally found on Monday, with Sunday being the most expensive.

What is the cheapest month to fly from Belfast Intl Airport 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 Intl Airport 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 Intl Airport to London Heathrow Airport is October, where tickets cost £95 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is £137 and £135 respectively.

How far in advance should I book a flight from Belfast Intl Airport 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 Intl Airport 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 Intl Airport to London Heathrow Airport, you should book around 5 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

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

Low seasonDecember
Cheapest flight£91
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (13% more expensive on average)
Flight from Belfast Intl Airport to London Heathrow Airport

When to book flights from Belfast Intl to Heathrow

Are your dates flexible? Find out the best times to travel from Belfast Intl 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 Intl Airport to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from Belfast Intl Airport to London Heathrow Airport was £91 for a one-way ticket and £222 for a return.

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

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

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

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

  • Which is the best airline for flights from Belfast to London, easyJet or British Airways?

    The two airlines most popular with KAYAK users for flights from Belfast to London are easyJet and British Airways. With an average price for the route of £65 and an overall rating of 6.9, easyJet is the most popular choice. British Airways is also a great choice for the route, with an average price of £129 and an overall rating of 6.7.

  • How does KAYAK find such low prices on flights from Belfast Intl Airport 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 Intl Airport 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 Intl Airport 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 Intl Airport 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 Intl Airport 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 Intl Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast Intl Airport 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 Intl Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Belfast Intl 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 Intl 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 1867 reviews
7.6Crew
6.7Comfort
6.7Boarding
5.9Food
5.5Entertainment
Airline reviews

Boarding and disembarking were smooth. Not offering free water was cheap ... I've never encountered that before on a flight.

6.0 GoodJon, Jan 2026
RAK - NCE
Read more easyJet reviews

Boarding and disembarking were smooth. Not offering free water was cheap ... I've never encountered that before on a flight.

Boarding could be better. To get through your gate but to be stood in a corridor for 20 minutes is not great.

The plane was postponed for over 2.5 hours, which meant that all four of us missed the check in time for our ongoing trip to Melbourne. We had to buy new tickets for 4 people as we had to forfeit the ones we had. The cost was really unfair. i understand that it was snowing during the first leg of the plane for that morning. Surely the cost could have been shared by the airline and not all by us. I could have bought insurance - but you can see how much I travel. I will need to chose more trustworthy airlines.

The true is that travel from London to Faro on 11/12/2025 by BA was cancelled, so I did not go to Faro, so i did not board easy flight. The mediocre qualification to you was because even when i bought an insurance, i could not change date neither obtain reimbursement. It could be ideal if you do something in order for me not to lose the purchase Thank you

Queuing for quite a while despite using the "speedy boarding".

Would not advise EasyJet for a 5 hour flight…small plane and hence a lot of turbulence. No inflight entertainment so struggle to pass time in cramped seats. We also fell victim to extra charge for our cabin bags, although bag dimensions were ok, but the handle was rigid and slightly fell outside their testing cage!!….never again will we fly with this airline and be party to their scams for making money!

The food and so are to expensive and old . Crew whas not very friendly . Apparently some other passenger can just Push through the waiting people to board while almost punching me and a father with a child down the stairs. Its always something with easy jet . The seats of row 26 where lose . And for a guy of my size there is absolutely no leg room at all .

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.

This review if for American Airlines. From London to LA, British Airways customers flew American Airlines and there was a small incident on the plane with a customer that was sitting next to me. She had a gluten free meal which she selected online. The flight attendant brought her food and both times, it contained gluten (bread, cracker) and by the second time, the customer mentioned about the issue to the flight attendant because she is highly allergic to gluten. Customer was very gentle and just wanted to note that both her meals contained gluten on the tray. The whole situation could have ended really well if flight attendant just apologized and mentioned she would relay the message to the responsible party. Instead, she entered defensive mode and started making some BS excuse about how the cracker that was supposed to be mine, fell onto her tray instead. Mind me, I already had that cracker on my tray. I doubt I would be given two. Also, she mentioned that the bread from the previous meal was gluten free. REALLY? I ate that bread and it tasted like it had PLENTY of gluten. The whole situation was handled so poorly, not only by that one flight attendant, but by 2 others. The reason I intervened is because the customer sitting next to me was tearing and all she did was mention the mistake which could have cause her health great damage, and instead she received attacks and excuses. AA, you should train your employees how to better handle situations like this. A 'well, I don't see why this problem is a big deal since you (the customer with allergies) read the ingredients and avoided eating the cracker that "accidentally fell" from the tray of the customer sitting next to you,' should not have been coming out of a flight attendant's mouth.

Continue to be disappointed that the “food” for “ordinary” fare paying passengers is poor - on this flight it consisted of a packet of two biscuits and a small bottle of water … not even offered a “free” cup of tea or coffee. Suggest a review of the “menu” and offer a hot drink to ordinary (economy class) passengers. On this route there are many far cheaper flights available - paying almost £200 for a flight that could have been bought for less than half this price should have some “perks” - offering hot drinks to all passengers would, in my opinion, be a cost effective measure which would improve the image of British Airways.

Aircraft was comfortable even in economy, clean. Entertainment screens were excellent and. Hoice was very good. Good was just ok. Crew was not bad.

Entertainment system didn't work well. Also no new movies and limited choice of other programmes. . And only one USB A charger option. Most modern electronic items needs USB C. Planes should offer both

I was unable to board the flight because I was unable to acquire a visa , Brexit changed my ability to get an ETA, I’m a Trinidad citizen and it takes weeks to get a visa

The issue was not with BA it was with the link yoiu sent fopr booking the flight

The space in the seat was okay, the staff were friendly, the entertainment system, my touch screen was not working and some of the films listed on the website for the flight were not available.

BA flight from London NY had old BC configuration with 2+3+2 seating with open seats which was not comfortable and lacked privacy

Flew business- but plane was dirty, food horrendous. Too many business class seats diluted service levels overall.

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

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

Information on your arrival and departure airports