BFS - LON

£19 Find Cheap Flights from Belfast Intl Airport 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 Intl to London departing on 14/1. 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 26% 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
£38
Overall average: £58
Ryanair
Fri 16/1Mon 19/1
BFS - STN • Direct
Cheapest direct flights
£38
Typical prices: £20-£79
easyJet
Tue 27/1Thu 29/1
BFS - STN • Direct
Video guide: How to find cheap flights to London
Watch video
Watch video
Watch video
Watch video
Top airlines
Ryanair
Cheapest • from £38 (return)
Ryanair
Best reviews • 6.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BFS-STN
Cheapest • 44% average savings
BFS-STN
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 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 35% 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 London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belfast Intl to London (BFS-LON)

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

Fri, 16 Jan - Mon, 19 Jan
Ryanair Logo
18:00 - 19:20
BFS
-
STN
1h 20mdirect
Ryanair Logo
06:05 - 07:25
STN
-
BFS
1h 20mdirect
£38Ryanair
Fri, 16 Jan - Sun, 18 Jan
Ryanair Logo
18:00 - 19:20
BFS
-
STN
1h 20mdirect
Ryanair Logo
07:30 - 08:50
STN
-
BFS
1h 20mdirect
£39Ryanair
Tue, 27 Jan - Thu, 29 Jan
easyJet Logo
08:50 - 10:00
BFS
-
LTN
1h 10mdirect
easyJet Logo
07:00 - 08:20
LTN
-
BFS
1h 20mdirect
£39easyJet
Thu, 15 Jan - Sun, 18 Jan
easyJet Logo
06:30 - 08:00
BFS
-
LGW
1h 30mdirect
easyJet Logo
07:25 - 08:55
LGW
-
BFS
1h 30mdirect
£39easyJet
Mon, 12 Jan - Thu, 15 Jan
Ryanair Logo
22:20 - 23:40
BFS
-
STN
1h 20mdirect
Ryanair Logo
08:00 - 09:20
STN
-
BFS
1h 20mdirect
£39Ryanair
Wed, 21 Jan - Thu, 22 Jan
easyJet Logo
20:50 - 22:15
BFS
-
LGW
1h 25mdirect
easyJet Logo
08:35 - 10:05
LGW
-
BFS
1h 30mdirect
£40easyJet
Tue, 13 Jan - Wed, 21 Jan
easyJet Logo
06:00 - 07:20
BFS
-
STN
1h 20mdirect
easyJet Logo
07:50 - 09:10
STN
-
BFS
1h 20mdirect
£40easyJet
Thu, 15 Jan - Sun, 18 Jan
easyJet Logo
06:30 - 08:00
BFS
-
LGW
1h 30mdirect
easyJet Logo
07:25 - 08:55
LGW
-
BFS
1h 30mdirect
£42easyJet
Wed, 14 Jan - Sat, 17 Jan
Ryanair Logo
15:45 - 17:05
BFS
-
STN
1h 20mdirect
Ryanair Logo
21:25 - 22:45
STN
-
BFS
1h 20mdirect
£42Ryanair
Wed, 25 Feb - Fri, 6 Mar
Multiple Airlines Logo
12:50 - 21:05
BFS
-
LHR
8h 15m2 stops
Multiple Airlines Logo
07:00 - 12:50
LHR
-
BFS
5h 50m1 stop
£229Multiple Airlines
Booking Insights

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

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

Find cheap flights to London
Find cheap flights to London

Planning a trip from Belfast Intl to London? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

What is the cheapest Belfast Intl Airport to London flight route?

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

The cheapest return flight from Belfast Intl Airport 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, 44% cheaper than other Belfast Intl Airport-London routes. It is also the most popular route.

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

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

When flying from Belfast Intl Airport to London, you should consider leaving on a Friday and avoid Mondays if you are looking for the best rates. For your return to Belfast Intl Airport, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

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

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, 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 is January, where tickets cost £43 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £100 and £94 respectively.

How far in advance should I book a flight from Belfast Intl Airport 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 Intl Airport 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 Intl Airport to London, you should book around 5 weeks before departure, which saves you about 32% 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

Low seasonNovember
Cheapest flight£19
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (41% more expensive on average)
Flight from Belfast Intl Airport to London Luton Airport

When to book flights from Belfast Intl to London

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

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

    In the last 3 days, the lowest price for a flight from Belfast Intl Airport to London was £19 for a one-way ticket and £38 for a return.

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

    The Airbus A319 is the aircraft model that flies most regularly on the Belfast Intl Airport to London flight route.

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

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

  • On which days can I fly direct from Belfast Intl Airport to London?

    There are direct flights from Belfast Intl Airport to London on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Belfast to London are easyJet and Ryanair. With an average price for the route of £71 and an overall rating of 6.9, easyJet is the most popular choice. Ryanair is also a great choice for the route, with an average price of £77 and an overall rating of 6.9.

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

  • 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?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London 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?

    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 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?

    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 Intl Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Belfast Intl Airport to London

  • Looking for a cheap flight from London to Belfast Intl Airport? 25% of our users found flights on this route for £41 or less one-way and £56 or less round-trip.

Prefer to fly direct from Belfast Intl Airport to London?

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

Direct departures

Belfast Intl to London

Monday

Ryanair, easyJet

Ryanair, easyJet

Tuesday

Ryanair, easyJet

Ryanair, easyJet

Wednesday

Ryanair, easyJet

Ryanair, easyJet

Thursday

Ryanair, easyJet

Ryanair, easyJet

Friday

Ryanair, easyJet

Ryanair, easyJet

Saturday

Ryanair, easyJet

Ryanair, easyJet

Sunday

Ryanair, easyJet

Ryanair, easyJet

See more direct flights

Direct returns

London to Belfast Intl

Monday

Ryanair, easyJet

Ryanair, easyJet

Tuesday

Ryanair, easyJet

Ryanair, easyJet

Wednesday

Ryanair, easyJet

Ryanair, easyJet

Thursday

Ryanair, easyJet

Ryanair, easyJet

Friday

Ryanair, easyJet

Ryanair, easyJet

Saturday

Ryanair, easyJet

Ryanair, easyJet

Sunday

Ryanair, easyJet

Ryanair, easyJet

See more direct flights

Reviews of the top 4 airlines flying from Belfast Intl 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 Intl 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 5236 reviews
6.0Food
6.7Boarding
6.5Comfort
7.5Crew
5.6Entertainment
Airline reviews

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

6.0 GoodDee-ann, Dec 2025
STN - HAM
Read more Ryanair reviews

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.

Flying from Hamburg to Stansted was a nightmare if I have to be honest, the flight was due to leave at 15:50 and we ended up not taking off properly till 16:56. They really don’t have enough people doing the sorting of baggage where you get the sticker for your case before the security check, going through security was 10x more faster then the whole baggage situation.

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.

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.

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.

Staff except one has poor attitude. No cabin crew seen for several hours during the flight in business class. It felt like I was traveling in economy Drinks bad in business class Flight was late for no obvious reasen and I missed my flight to Miami I was put in a 3 star hotel in London although I was traveling in business class. Dinner was aweful at the hotel Overall very poor experience

The transit at Heathrow was an absolute and total nightmare. Absolutely gut wrenchingly horrible and scary. Embarrassing that their National air carrier cannot figure a half decent experience for passengers to transit via London. Shameful.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Gate agents were late…flight was late and air attendants unhelpful.

Awful it always is unfortunately is the only way to fly direct to london

The flight went well. However the leg room in coach class is very very tight. We arrived early but could not get to the gate early….sadly. Also something about off loading cargo- we had to wait to deplane. There was not clear explanation for that.

Awful. Flight was late. Follow flights cancelled. No person at the British airways counter for hotel voucher. Awful service.

Need thicker and wider blankets. Food was below standard especially in the fist leg.

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

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 Intl to London

Information on your arrival and departure airports