£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 27/2. 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

Save 25% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£37
Overall average: £56
easyJet
Sun 8/3Mon 9/3
BFS - LTN • Direct
Cheapest one-way flight
£18
Typical prices: £22-£70
easyJet
Fri 27/2
BFS - LGW • Direct
Our travellers' advice
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
easyJet
Cheapest • from £37 (return)
Ryanair
Best reviews • 6.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BFS
-
STN
Cheapest • 73% 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 33% 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 London!
Flight Deals
Booking Insights
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

Sun, 8 Mar - Mon, 9 Mar
easyJet Logo
08:55 - 10:05
BFS
-
LTN
1h 10mdirect
easyJet Logo
07:00 - 08:20
LTN
-
BFS
1h 20mdirect
£37easyJet
Thu, 26 Feb - Mon, 2 Mar
easyJet Logo
20:00 - 21:20
BHD
-
LTN
1h 20mdirect
easyJet Logo
08:00 - 09:25
LTN
-
BHD
1h 25mdirect
£37easyJet
Mon, 16 Feb - Thu, 19 Feb
Ryanair Logo
18:50 - 20:10
BFS
-
STN
1h 20mdirect
Ryanair Logo
21:30 - 22:50
STN
-
BFS
1h 20mdirect
£37Ryanair
Thu, 12 Mar - Tue, 17 Mar
easyJet Logo
07:25 - 08:55
BHD
-
LGW
1h 30mdirect
easyJet Logo
07:25 - 08:55
LGW
-
BHD
1h 30mdirect
£37easyJet
Wed, 4 Mar - Sun, 22 Mar
Ryanair Logo
07:40 - 09:00
BFS
-
STN
1h 20mdirect
Ryanair Logo
10:40 - 12:00
STN
-
BFS
1h 20mdirect
£38Ryanair
Wed, 25 Mar - Fri, 27 Mar
easyJet Logo
21:00 - 22:15
BFS
-
LTN
1h 15mdirect
easyJet Logo
07:00 - 08:20
LTN
-
BFS
1h 20mdirect
£38easyJet
Mon, 9 Mar - Wed, 11 Mar
British Airways Logo
09:15 - 10:45
BHD
-
LHR
1h 30mdirect
British Airways Logo
17:10 - 18:40
LHR
-
BHD
1h 30mdirect
£82British Airways
Fri, 8 May - Mon, 11 May
British Airways Logo
06:30 - 07:55
BHD
-
LHR
1h 25mdirect
British Airways Logo
07:20 - 08:40
LHR
-
BHD
1h 20mdirect
£89British Airways
Thu, 16 Apr - Mon, 20 Apr
Multiple Airlines Logo
15:00 - 20:30
BHD
-
STN
5h 30m
1 stop
Multiple Airlines Logo
06:05 - 11:55
STN
-
BHD
5h 50m
1 stop
£93Multiple Airlines
Sun, 5 Apr - Thu, 23 Apr
Multiple Airlines Logo
17:00 - 21:35
BHD
-
STN
4h 35m
1 stop
Multiple Airlines Logo
06:05 - 14:30
STN
-
BHD
8h 25m
1 stop
£106Multiple Airlines
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 March.

What is the cheapest Belfast to London flight route?

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

The cheapest return flight from Belfast to London costs £17 on the route between Belfast Intl Airport (BFS) and London Stansted Airport (STN). Over the past month, this route was, on average, 73% 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 Monday, 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 March, where tickets cost £44 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £99 and £94 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 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.

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 Gatwick 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 £37 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 Stansted 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

Aer Lingus, British Airways, Ryanair, +1 more

Aer Lingus, British Airways, +2 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 4 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
RyanairOverall score based on 5251 reviews
6.0Food
6.7Boarding
5.6Entertainment
6.5Comfort
7.5Crew
Airline reviews

Delay in boarding with no explanation why. Stood for about 40 mins waiting to board

6.0 GoodAndy, Jan 2026
ALC - EDI
Read more Ryanair reviews

Delay in boarding with no explanation why. Stood for about 40 mins waiting to board

Great flight just took some time to board even when lining up early for the flight, even taking off took longer then expected.

Rubbish moved my seat don’t know why same seat configuration cost me extra so me and my wife could sit together now I know why no paper ticket so they can do this

Slow and delayed boarding, including standing outside 15m in -3 temperatures, Late take-off approx 45 mins Very slow bag delivery approx 45 min - no explanation

The flight boarded nice and early and this meant there was no sudden rush at the gate. The only down side was the cabin was very cold 🥶

Flying from Newquay was an absolute dream! Would 100% recommend flights from there!

It would have been better if I was not ill so I didn't go and I didn't come back and I could not transfer my tickets to a later date as Ryanair stop flying from Manchester at the end of October till next year

Take off was great but landing is always with a bump.

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

Passengers next to me insisted I change seats so they could sit together. I had to frequently move so that when the sear belt sign was on I was in my proper seat! I was returning from helping my mum with my dad's things after his sudden death and didn't feel like arguing with the other passengers.

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 .

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.

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

I don’t think you’ll like the shoulder require people to pay to reserve seats. Also for the people in the bulkhead row the luggage locker nearest to their seats should be vacant. Both sides were filled with crew or airport items.

Experience was bad. In business class, they ran out of food choices. Luggage was delayed by 2 days in both to and fro flights, ground staff was not helpful, took 3 hours to log the complaint for missing luggage.

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.

Stanton airport is outdated, pure equiped, airport. Fire alarms, power outages is a common routine, wich result ir flights delay , additional money spending and huge gathering of people in airport wich is unsafe.

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.