£18 Find Cheap Flights from Belfast to London

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 London departing on 15/5. 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 London

 
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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£45
Typical prices: £117-£43
easyJet, Ryanair
Wed 27/5Wed 3/6
BFS - STN • Direct
Cheapest one-way flight
£18
Typical prices: £49-£66
easyJet
Fri 15/5
BFS - LTN • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
BA offers free cabin bags with economy fares.
EasyJet's Speedy Boarding provides priority boarding.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from £46 (return)
Best reviews • 6.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with British Airways, Ryanair, and easyJet. Average duration is 1h 22m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 76% average savings
Most popular
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 49% compared to booking last minute.
Insights
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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 London!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Belfast to London

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

Wed, 27 May - Wed, 3 Jun
Multiple Airlines Logo
06:00 - 07:20
BFS
-
STN
1h 20mdirect
Multiple Airlines Logo
10:15 - 11:35
STN
-
BFS
1h 20mdirect
£45Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Ryanair Logo
09:15 - 10:35
BFS
-
STN
1h 20mdirect
Ryanair Logo
11:00 - 12:20
STN
-
BFS
1h 20mdirect
£46Ryanair
Fri, 15 May - Mon, 18 May
easyJet Logo
21:30 - 22:40
BFS
-
LTN
1h 10mdirect
easyJet Logo
21:55 - 23:10
LTN
-
BFS
1h 15mdirect
£46easyJet
Mon, 8 Jun - Wed, 10 Jun
Multiple Airlines Logo
19:35 - 20:50
BFS
-
STN
1h 15mdirect
Multiple Airlines Logo
10:15 - 11:35
STN
-
BFS
1h 20mdirect
£46Multiple Airlines
Fri, 12 Jun - Wed, 24 Jun
easyJet Logo
21:30 - 22:40
BFS
-
LTN
1h 10mdirect
easyJet Logo
07:00 - 08:20
LTN
-
BFS
1h 20mdirect
£47easyJet
Thu, 14 May - Mon, 18 May
easyJet Logo
20:05 - 21:20
BFS
-
STN
1h 15mdirect
easyJet Logo
08:45 - 10:05
STN
-
BFS
1h 20mdirect
£47easyJet
Fri, 15 May - Mon, 18 May
easyJet Logo
21:30 - 22:40
BFS
-
LTN
1h 10mdirect
easyJet Logo
21:55 - 23:10
LTN
-
BFS
1h 15mdirect
£48easyJet
Thu, 14 May - Mon, 18 May
easyJet Logo
20:05 - 21:20
BFS
-
STN
1h 15mdirect
easyJet Logo
08:45 - 10:05
STN
-
BFS
1h 20mdirect
£48easyJet
Fri, 15 May - Fri, 15 May
British Airways Logo
11:00 - 12:25
BHD
-
LHR
1h 25mdirect
British Airways Logo
17:20 - 18:45
LHR
-
BHD
1h 25mdirect
£92British Airways
Sat, 26 Sep - Sun, 11 Oct
British Airways Logo
07:05 - 08:30
BHD
-
LHR
1h 25mdirect
British Airways Logo
08:45 - 10:05
LHR
-
BHD
1h 20mdirect
£110British Airways
Booking Insights

KAYAK’s insights & trends for Belfast to London flights

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

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 departing in May.

What is the cheapest Belfast to London 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 costs £18 on the route between Belfast City Airport (BHD) and London Luton Airport (LTN). However, over the past month, flights between Belfast Intl Airport (BFS) and London Stansted Airport (STN) were, on average, 76% cheaper than other Belfast-London 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?

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

If you are looking for a flight deal from Belfast to London, look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from London, Monday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Belfast to London, 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 is November, where tickets cost £105 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is £224 and £188 respectively.

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

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, 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, you should book around 6 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Belfast to London

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on easyJet

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Good to know - Cheap tickets from Belfast to London

Cheapest flight£18
Flight from Belfast Intl Airport to London Luton Airport

When to book flights from Belfast to London

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

  • What is the cheapest flight from Belfast to London?

    In the last 3 days, the lowest price for a flight from Belfast to London was £18 for a one-way ticket and £45 for a return.

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

    There are 2 airports in Belfast (Belfast Intl and Belfast City) and 6 airports in London (London City, London Gatwick, London Heathrow, London Luton, London Southend, and London Stansted). The cheapest flights are generally found on the Belfast Intl Airport to London Luton Airport flight route.

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

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

  • Which airline alliances offer flights from Belfast to London?

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

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

    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.

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

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

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

    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 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?

    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 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?

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

Direct departures

Belfast to London

Monday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Tuesday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Wednesday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Thursday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Friday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Saturday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Sunday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

See more direct flights

Direct returns

London to Belfast

Monday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Tuesday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Wednesday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Thursday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Friday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Saturday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

Sunday

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 more

See more direct flights

Reviews of the top 3 airlines flying from Belfast to London

 
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 London? 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 1897 reviews
7.7Crew
6.7Boarding
6.7Comfort
5.9Food
5.5Entertainment
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.

It was good; the only down side is that once you get to the airport everything is self service, there is no one assisting. I felt like I was working while I was on vacation during the check in process and dropping off the luggage. Really uncertain on what the airlines use payroll nowadays.

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.

We were bumped despite seats existing on flight While checkin attendants were helpful Easyjet management was not. Only after threats were we allowed on plane at last minute. The online help desk was useless and waste of time (over an hour of useless chats)

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

Sitting on the last row in between the aisle and a massive person, all people going to the bathroom bumped into me including the flight attendants.

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 best budget airline in Europe. Flight was on time, crew friendly and worked hard during flight and were able to meet our needs. Only downside (not the airline's fault), there were no rear steps.

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

The boarding was a mess as there was another document check in the small congested area after the stairs at the gate. No food is offered for Economy travelers except for a cookie and a small water bottle. No entertainment is available since it’s a short flight. But at least the seat reclined as opposed to my flight to Faro.

Flight attendants need to come by a little more often to pick up trash.

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

I had a mixed experience on this flight. The plane itself was comfortable, the flight was smooth, and the entertainment selection was excellent with plenty of movie options. However, the service fell short. I had an entire row to myself and fell asleep with a blanket over me. A flight attendant, Karleigh, woke me up to see if I had my seatbelt on, which felt unnecessary given the situation. Meanwhile, trash sat uncollected on the tray at the end of the row and was never picked up. During the second meal service, no one woke me up, and when I used the call button multiple times, there was no response. I eventually had to walk to the back to ask for assistance. There was also a long stretch without snacks, and when I requested something savory, I was dropped off sweet options, which wasn’t ideal. Overall, while the flight itself was comfortable, the lack of attentiveness and responsiveness from the crew made the experience disappointing.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

The flight attendant does not pay attention to my "call" button more than 3 times when I need a drink.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

British Airays fails to enforce its own guidelines regarding carry on size limits. There were MANY passengers with full suitcases stuffing them into the overhead compartments leaving no space for others, like me, who adhere to the posted sizes. I had to put my carryone bag into my foot space, in additon to my carryon personal item, leaving me cramped for a seven hour flight. I was in physical pain, and I attribute this entirely to staff unwilling to enforce limits. The infotainment system was horrible. the touchscreens did dot work correctly, and there was no information on system operation. I am 77 years old, and a lifelong movie-goer. I recognized ONE movie (and not much better TV shows). It seems that BA saves royalty money by limiting its move and TV selection to absolute rubbish. The FlightAware program is the worst informationsystm I have ever seen, it is completely worthless. I pay attention to the safety briefings...in the event of an emergency, one is supposed to assume the "brace" position, except the seats are so close together, front to back, that it is not possible to assume the position without striking the seat in front of you. at age 77, and a lifelong traveler, this is the worst flight experience I have ever had, and I will never fly British Airways again

The flight was delayed by a bird strike. We were held in boarding area with no toilet facilities.

Very late to leave, poor communication on expected departure time and when boarding actually started.

Everything was perfectly fine, it’s exactly what you would hope for from a budget airline. You get what it says on the tin, what more could you ask for?

Cheap flight but I didn't like the almost one hour delay because of paperwork!!!!

Gate is far at Leeds Bradford Airport. However, as the flight was less than half full, it was calm and not stressful. Great take off and landing. Friendly staff

Boarding was started early and we were lined up in. A glass tunnel on the tarmac we were left standing there for an hour with no information the flight left and arrived 30 mins late

It was great. We arrived a few minutes late but the crew were concert and kind about it. It was a nice smooth fly thanks be to Jesus. I prayed for smooth flight and Yahuwah answered my prayer.

Need more check in desks at Marrakech. Even if you are travelling with hand luggage only, you still need to 'check in' to get the old style boarding pass. Unfortunately they haven't thought to separate out the people checking in luggage to a separate desk. Flight was delayed leaving but arrived on time. Limited food options on board and very overpriced.

We bought tickets for £30 from kayak but we paid £55 for check in to rayan , they slaught us

Flight was delayed so long we missed our second flight. Entire trip had to be cancelled. Ryanair refused to help us.

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

Cabin class types available on flights from Belfast to London

Cabin classes available on flights from Belfast to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.