BFS - LHR

£101 Find Cheap Flights from Belfast Intl Airport to London Heathrow Airport – Compare and Save

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 6/7. 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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Everything you should know

Cheapest return fare
£212
Typical prices: £113-£205
Multiple Airlines
Wed 19/8Tue 25/8
BFS - LHR • 1 stop
Cheapest one-way flight
£101
Typical prices: £72-£107
Multiple Airlines
Mon 6/7
BFS - LHR • 2 stops
When to book
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 14% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Wed, 19 Aug - Tue, 25 Aug
Multiple Airlines Logo
06:15 - 21:25
BFS
-
LHR
15h 10m
1 stop
Multiple Airlines Logo
19:45 - 10:40
LHR
-
BFS
14h 55m
1 stop
£212Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
15:25 - 09:10
BFS
-
LHR
17h 45m
2 stops
Multiple Airlines Logo
20:35 - 07:25
LHR
-
BFS
10h 50m
1 stop
£244Multiple Airlines
Mon, 10 Aug - Mon, 17 Aug
Multiple Airlines Logo
20:35 - 07:55
BFS
-
LHR
11h 20m
1 stop
Multiple Airlines Logo
15:10 - 23:10
LHR
-
BFS
8h 00m
2 stops
£257Multiple Airlines
Wed, 23 Sep - Wed, 30 Sep
Multiple Airlines Logo
09:35 - 20:05
BFS
-
LHR
10h 30m
1 stop
Multiple Airlines Logo
20:50 - 09:45
LHR
-
BFS
12h 55m
1 stop
£261Multiple Airlines
Fri, 17 Jul - Tue, 4 Aug
Multiple Airlines Logo
18:35 - 07:55
BFS
-
LHR
13h 20m
1 stop
Multiple Airlines Logo
19:45 - 10:40
LHR
-
BFS
14h 55m
1 stop
£263Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
16:40 - 20:55
BFS
-
LHR
4h 15m
1 stop
Multiple Airlines Logo
19:30 - 07:50
LHR
-
BFS
12h 20m
2 stops
£266Multiple Airlines
Wed, 5 Aug - Sat, 22 Aug
Multiple Airlines Logo
17:45 - 09:10
BFS
-
LHR
15h 25m
1 stop
Multiple Airlines Logo
20:50 - 12:25
LHR
-
BFS
15h 35m
1 stop
£267Multiple Airlines
Wed, 19 Aug - Mon, 24 Aug
Multiple Airlines Logo
17:45 - 14:45
BFS
-
LHR
21h 00m
2 stops
Multiple Airlines Logo
20:35 - 07:25
LHR
-
BFS
10h 50m
1 stop
£276Multiple Airlines
Wed, 5 Aug - Tue, 18 Aug
Multiple Airlines Logo
18:00 - 12:45
BFS
-
LHR
18h 45m
2 stops
Multiple Airlines Logo
19:50 - 00:45
LHR
-
BFS
28h 55m
2 stops
£281Multiple Airlines
Tue, 11 Aug - Thu, 27 Aug
Multiple Airlines Logo
07:35 - 18:20
BFS
-
LHR
10h 45m
2 stops
Multiple Airlines Logo
20:30 - 08:40
LHR
-
BFS
12h 10m
1 stop
£283Multiple 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.

How much is a return flight from Belfast Intl Airport 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 Intl Airport to London Heathrow Airport departing in August.

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 Sunday is the most expensive. Flying from London Heathrow Airport back to Belfast Intl Airport, the best deals are generally found on Wednesday, 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 December, where tickets cost £117 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £149 and £148 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 6 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

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

Low seasonApril
Cheapest flight£101
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (6% 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 £81 for a one-way ticket and £212 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 £71 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 £137 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 1912 reviews
6.8Comfort
5.5Entertainment
5.9Food
7.7Crew
6.7Boarding
Airline reviews

Whole way through - far more professional and slick than I expected

10.0 ExcellentAnonymous, May 2026
EDI - LGW
Read more easyJet reviews

Whole way through - far more professional and slick than I expected

Good news was that Bag Check was open two and a half hours before the flight, which is essential with the chaotic immigration process. Flight was okay, but sitting at the back of the aircraft, 3 overhead bins on both sides were filled with crew bags and other misc items, so we couldn't put our cabin bags anywhere near us. To add insult, twice the crew managed to drop items that they were taking out of the overhead bins onto my wife's head, who was sitting in an aisle seat.

You need to make signage at Berlin Airport clearer. Having checked in online we had our boarding passes onlour phones. You do not make it clear that you need to check in again to receive a printed luggage tag. You get to baggage drop off and it says you can only do it with a luggage tag BUT not how to get this.

It was good except they could offer free water and tea/coffe

Sat at rear of aircraft and was very cold. As a frequent flyer for many years, this is was the coldest I have ever been. Other passengers and some crew were complaining how cold it was. Sitting near the doors always risks being colder, just the way the aircraft works - but this was exceptional, bring a good jumper. Everything else was pretty standard easyJet - good value low cost carrier.

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".

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.

Not great! Rude staff in London and the worse baggage reclaim I’ve ever seen. Great staff in flight but doubt I’ll fly with them again

BA Canceled this flight and put us on a flight leaving Aberdeen at 8:00 PM, delaying our return to the states by a full day. The cancellation caused us expenses in both Aberdeen and London and BA was completely unhelpful on the phone and at the airport.

The crew on the flight were not particularly pleasant and fluid restriction was an issue. I was not allowed to fill my water bottle. Crew didn't check on passengers other than meal service.

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

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.

Big queues on arrival at airport despite having already checked in and only needed to drop bags off. Flight delayed which impacted on connecting flight.

The check-in baggage belt was broken (which is understandable) but what was surprising is they would check you in, give a baggage tag and then you have to drag the baggage to a different counter at the end of airport. No vegetarian option in in-flight meal. British Airways remains the worst big name airlines and always my last option while booking.

Flight was excellent, staff was great. My first time in first class and it was very relaxing and comfortable.

They are disorganized….show your flight info half an hour before take off, so you are running all over the place. Customer personnel are not helpful, and act like you are bothering them when you asked for assistance - very rude!!! My very first and last time flying with British airways… good thing we have other options.

There was no entertainment offered or expected, so please disregard my readings of that component. The flight was fantastic. Efficient boarding, takeoff, and even early arrival!

2 hour delay with very little information given. Horrible service by BA employees at Heathrow after we missed our connecting flight. Extremely disappointing experience!

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

Information on your arrival and departure airports