BFS - LON

£21 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 12/6. 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
£44
Typical prices: £83-£36
Ryanair
Sat 31/10Fri 13/11
BFS - STN • Direct
Cheapest direct flights
£45
Typical prices: £153-£52
Ryanair
Fri 5/6Mon 8/6
BFS - STN • Direct
Top airlines
Cheapest • from £44 (return)
Best reviews • 6.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with Ryanair and easyJet. Average duration is 1h 20m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 41% 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 41% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 82% price drop
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

Sat, 31 Oct - Fri, 13 Nov
Ryanair Logo
15:10 - 16:30
BFS
-
STN
1h 20mdirect
Ryanair Logo
07:50 - 09:10
STN
-
BFS
1h 20mdirect
£44Ryanair
Mon, 2 Nov - Tue, 10 Nov
Ryanair Logo
06:05 - 07:25
BFS
-
STN
1h 20mdirect
Ryanair Logo
06:35 - 07:55
STN
-
BFS
1h 20mdirect
£45Ryanair
Sat, 22 Aug - Wed, 2 Sep
Ryanair Logo
07:40 - 09:00
BFS
-
STN
1h 20mdirect
Ryanair Logo
10:15 - 11:35
STN
-
BFS
1h 20mdirect
£46Ryanair
Thu, 4 Jun - Tue, 16 Jun
Multiple Airlines Logo
20:05 - 21:20
BFS
-
STN
1h 15mdirect
Multiple Airlines Logo
22:00 - 23:20
STN
-
BFS
1h 20mdirect
£46Multiple Airlines
Sun, 1 Nov - Thu, 12 Nov
Ryanair Logo
07:00 - 08:20
BFS
-
STN
1h 20mdirect
Ryanair Logo
12:55 - 14:15
STN
-
BFS
1h 20mdirect
£47Ryanair
Mon, 15 Jun - Mon, 22 Jun
Ryanair Logo
18:50 - 20:10
BFS
-
STN
1h 20mdirect
Ryanair Logo
11:00 - 12:20
STN
-
BFS
1h 20mdirect
£49Ryanair
Thu, 11 Jun - Fri, 12 Jun
easyJet Logo
15:55 - 17:05
BFS
-
LTN
1h 10mdirect
easyJet Logo
22:15 - 23:30
LTN
-
BFS
1h 15mdirect
£50easyJet
Fri, 19 Jun - Mon, 22 Jun
easyJet Logo
20:25 - 21:40
BFS
-
STN
1h 15mdirect
easyJet Logo
08:45 - 10:05
STN
-
BFS
1h 20mdirect
£50easyJet
Thu, 4 Jun - Thu, 11 Jun
easyJet Logo
20:55 - 22:10
BFS
-
LTN
1h 15mdirect
easyJet Logo
07:10 - 08:30
LTN
-
BFS
1h 20mdirect
£51easyJet
Fri, 12 Jun - Fri, 19 Jun
easyJet Logo
20:25 - 21:40
BFS
-
STN
1h 15mdirect
easyJet Logo
22:10 - 23:25
STN
-
BFS
1h 15mdirect
£51easyJet
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.

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 October.

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 £19 on the route between Belfast Intl Airport (BFS) and London Stansted Airport (STN). Over the past month, this route was, on average, 41% 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 Wednesdays 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 February, where tickets cost £13 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £287 and £267 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 6 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

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

Low seasonApril
Cheapest flight£21
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (52% 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 £21 for a one-way ticket and £44 for a return.

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

    The Airbus A320-100/200 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 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 £78 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 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 £31 or less one-way and £59 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 3 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
easyJetOverall score based on 1903 reviews
5.9Food
5.5Entertainment
6.7Boarding
6.8Comfort
7.7Crew
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.

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!!

Boarding could be better. To get through your gate but to be stood in a corridor for 20 minutes is not great.

Significant delays on the return blamed on weather. Otherwise pleasant and helpful staff. Overcooked chicken on return limited options for dinner.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

The seats are extra cramped if you are taller than 5’8! Spring for the extra legroom seats for sure if you have a long flight!

Very disappointed with British Airways. It has been over 24 hours and I still have not received my checked baggage or any proper update. Customer support has been unresponsive, making the situation even more frustrating. Poor baggage handling and lack of communication seriously impacted my travel experience.

Flight was good but temp in the cabin was cold.

Service onboard is one of the best nowadays, on top of the regular meals they offer more drinks during the whole flight and crew is super nice and helpful. I truly enjoy to fly in BA.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Our part of four was delayed both ways between San Diego and Pisa causing our family to be split up with three of us stuck in London overnight No compensation or upgrades were offed and we missed work as a result Food very poor and we declined two of the four meals offered I will affirmatively avoid flying British Airways from here on out

Cancelled flight and re booked seats were a downgrade. British Airways said the upgrade was t available but when I checked it was but then they wouldn’t make it right

The crew was exceptionally good. Came around with snacks and drinks multiple times during the flight. I asked for hot water and they remembered. Responded to call light promptly. Very pleasant. The aircraft was also kept very clean. Boarding was organized. Overall was a great experience.

The flight was on time, great value and very helpful crew. This direct flight was the most convenient I ever had coming to Sarajevo over the years. Will definitely use this flight again in the future without hesitation.

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

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

Information on your arrival and departure airports