LHR - BFS

£101 Find Cheap Flights from London Heathrow Airport to Belfast Intl 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 Heathrow to Belfast Intl departing on 5/5. 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 Belfast Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Belfast, 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 London to Belfast, 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
£172
Overall average: £100
Multiple Airlines
Thu 8/1Thu 15/1
LHR - BFS • 2 stops
Cheapest one-way flight
£101
Typical prices: £50-£128
Multiple Airlines
Tue 5/5
LHR - BFS • 2 stops
When to book
5 weeks
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 46% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 24% price drop
August
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.
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Belfast Intl (LHR-BFS)

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

Thu, 8 Jan - Thu, 15 Jan
Multiple Airlines Logo
09:55 - 12:35
LHR
-
BFS
26h 40m2 stops
Multiple Airlines Logo
16:50 - 21:45
BFS
-
LHR
28h 55m1 stop
£172Multiple Airlines
Thu, 8 Jan - Thu, 15 Jan
Multiple Airlines Logo
15:15 - 14:00
LHR
-
BFS
22h 45m1 stop
Multiple Airlines Logo
16:50 - 21:45
BFS
-
LHR
28h 55m1 stop
£177Multiple Airlines
Wed, 18 Feb - Wed, 18 Feb
Multiple Airlines Logo
06:20 - 14:25
LHR
-
BFS
8h 05m1 stop
Multiple Airlines Logo
17:30 - 07:55
BFS
-
LHR
14h 25m1 stop
£223Multiple Airlines
Fri, 20 Mar - Mon, 23 Mar
Multiple Airlines Logo
14:45 - 22:05
LHR
-
BFS
7h 20m1 stop
Multiple Airlines Logo
14:40 - 21:25
BFS
-
LHR
6h 45m1 stop
£252Multiple Airlines
Thu, 22 Jan - Fri, 23 Jan
Multiple Airlines Logo
08:55 - 14:05
LHR
-
BFS
5h 10m1 stop
Multiple Airlines Logo
14:40 - 21:25
BFS
-
LHR
6h 45m1 stop
£273Multiple Airlines
Sat, 10 Jan - Mon, 12 Jan
Multiple Airlines Logo
08:40 - 18:55
LHR
-
BFS
10h 15m2 stops
Multiple Airlines Logo
21:15 - 10:45
BFS
-
LHR
13h 30m2 stops
£280Multiple Airlines
Sat, 10 Jan - Sat, 17 Jan
Multiple Airlines Logo
06:30 - 18:55
LHR
-
BFS
12h 25m2 stops
Multiple Airlines Logo
08:00 - 20:50
BFS
-
LHR
12h 50m2 stops
£281Multiple Airlines
Sun, 5 Apr - Thu, 7 May
Multiple Airlines Logo
11:45 - 17:10
LHR
-
BFS
5h 25m1 stop
Multiple Airlines Logo
10:15 - 20:05
BFS
-
LHR
9h 50m1 stop
£299Multiple Airlines
Thu, 8 Jan - Thu, 22 Jan
Multiple Airlines Logo
06:35 - 16:00
LHR
-
BFS
9h 25m2 stops
Multiple Airlines Logo
09:45 - 21:20
BFS
-
LHR
11h 35m2 stops
£308Multiple Airlines
Fri, 20 Mar - Mon, 23 Mar
Multiple Airlines Logo
20:05 - 22:35
LHR
-
BFS
26h 30m2 stops
Multiple Airlines Logo
06:55 - 17:05
BFS
-
LHR
10h 10m2 stops
£316Multiple Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Heathrow to Belfast Intl 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 London Heathrow Airport to Belfast Intl Airport?

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Belfast Intl 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 London Heathrow Airport to Belfast Intl Airport is January, where tickets cost £100 (return) on average. On the other hand, the most expensive months are July and May, where the average cost of round-trip tickets is £156 and £152 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Belfast Intl 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 London Heathrow Airport to Belfast Intl Airport, you should book around 5 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

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

Low seasonNovember
Cheapest flight£101
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (6% more expensive on average)
Flight from London Heathrow Airport to Belfast Intl Airport

When to book flights from Heathrow to Belfast Intl

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

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Belfast Intl Airport was £82 for a one-way ticket and £172 for a return.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from London to Belfast are easyJet and British Airways. With an average price for the route of £79 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 £133 and an overall rating of 6.7.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast Intl Airport from London Heathrow 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 London Heathrow Airport to Belfast Intl 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 Belfast Intl Airport with an airline and back to London Heathrow Airport with another airline.

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

 
See real verified KAYAK customer reviews for airlines flying from London to Belfast. 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 Heathrow to Belfast Intl? 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 1850 reviews
6.7Boarding
5.9Food
5.5Entertainment
7.6Crew
6.7Comfort
Airline reviews

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 .

4.0 OkayAnonymous, Nov 2025
LTN - AMS
Read more easyJet reviews

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.

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

Nice lounge but had a 5 hour layover which is a lot

Flight on time and priority boarding worked. I travelled economy although business was available as no flights are cheap these days and at least with BA loyalty card I get a baggage allowance for nothing. That made the flight comparable or even cheaper than the ‘budget’ alternative. As for catering and entertainment - not on a BA short haul economy ! At least we were offered biscuits and water! Catering for economy short haul has been reduced to the minimum - no tea or coffee or other drinks than water (from a large bottle with a paper cup on offer). They will say this is better for the environment, which it is, but proper waste management is still needed for empty packets etc. so actually it’s a money saver.

Audi visual not working for a whole group of seats in first class. How does a plane leave the main hub in such poor condition? How much that we can’t see so immediately is also compromised?

main meals are horrible but then you dont fly for the food

It was good. Couldn’t Check in online and select seats

It was great. Enough space and room for legs . Great service to.

⭐ British Airways Review — A Journey of Highs, Lows, and Lessons ⭐ I recently flew Business Class round-trip from Boston to Mumbai with British Airways, and my experience was a tale of two extremes — from disappointment to exceptional service, and then back to inconsistency. Boston → London: A Surprisingly Poor Start My journey began on a disappointing note. On a 6-hour Business Class flight, I was surprised to discover that there wasn’t a single proper vegetarian meal option available. I was offered a few bakery items only after repeatedly requesting something to eat. The flight attendant shrugged, offered no solution, and eventually — quite literally — threw some bread at me after much delay. This was not only disheartening, it was extremely surprising given my wonderful Business Class experience with BA last year. I stepped off that flight genuinely hungry and had to make a mad dash to the lounge just to get a proper meal. London → Mumbai: A Complete Turnaround The next sector restored my faith in British Airways. The entire crew was warm, welcoming, attentive, and genuinely caring. A special shoutout to Phiroze and the entire team serving the Business Class cabin — their professionalism, hospitality, and thoughtful service were extraordinary. They truly embodied what makes British Airways a global leader, and I am deeply grateful for the experience they provided. This is the BA I know and love. Mumbai → London: A Strange Meal Schedule This sector was generally fine, but the meal timing was puzzling. Lunch at 10:30 AM — for a Business cabin — felt unusual, and most passengers, including myself, barely touched it. The rest of the service was smooth, but the scheduling definitely needs a rethink. London → Boston: Mixed Experience Again The flight itself was decent, but the Business Lounge at Heathrow for this leg was a letdown. Arrived during lunch hours: no hot vegetarian options available Lounge area: dirty dishes everywhere Even after politely alerting the staff, the dishes were ignored and left uncleared For a premium cabin passenger — and at one of the world’s busiest international hubs — this was disappointing. Overall Impression My journey with British Airways felt inconsistent — two great sectors sandwiched between two that fell short of the BA standard. When BA is good, it is world-class. When it misses, the gap is noticeable. I genuinely hope the airline takes this feedback as constructive insight. I continue to believe in British Airways, and I commend the outstanding crew on the London → Mumbai sector — they were the highlight of my entire trip. With a little more focus on vegetarian meal availability, lounge service, and consistency across crews, BA can ensure every Business Class passenger experiences the premium journey they promise.

We were in business class and I had seat # 1. This was a night flight and after dinner was served, lights were dimmed and I went to sleep. The crew were loud and noisy so I didn’t get much sleep. I expect the crew to enjoy themselves but would Appreciate some decency in staying quiet while the passengers sleep

Have travelled business class with other airlines who profess to be the best in the world. They can however not beat the service and comfort that BA provide.

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

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

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