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 14/7. 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
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Everything you should know

Cheapest return fare
£42
Typical prices: £157-£72
Ryanair
Sat 25/7Fri 31/7
BFS - STN • Direct
Cheapest one-way flight
£19
Typical prices: £36-£89
Ryanair
Tue 14/7
BFS - STN • Direct
Top airlines
Cheapest • from £42 (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 • 87% 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 52% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 30% 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, 25 Jul - Fri, 31 Jul
Ryanair Logo
11:10 - 12:30
BFS
-
STN
1h 20mdirect
Ryanair Logo
21:40 - 23:00
STN
-
BFS
1h 20mdirect
£42Ryanair
Thu, 4 Jun - Tue, 9 Jun
Ryanair Logo
21:25 - 22:45
BFS
-
STN
1h 20mdirect
Ryanair Logo
14:55 - 16:15
STN
-
BFS
1h 20mdirect
£42Ryanair
Thu, 23 Apr - Sun, 26 Apr
Ryanair Logo
14:50 - 16:10
BFS
-
STN
1h 20mdirect
Ryanair Logo
10:35 - 11:55
STN
-
BFS
1h 20mdirect
£43Ryanair
Mon, 11 May - Mon, 11 May
Ryanair Logo
09:15 - 10:35
BFS
-
STN
1h 20mdirect
Ryanair Logo
20:35 - 21:55
STN
-
BFS
1h 20mdirect
£44Ryanair
Fri, 17 Apr - Mon, 20 Apr
easyJet Logo
20:25 - 21:40
BFS
-
STN
1h 15mdirect
easyJet Logo
21:20 - 22:35
STN
-
BFS
1h 15mdirect
£45easyJet
Fri, 17 Apr - Sat, 18 Apr
easyJet Logo
20:25 - 21:40
BFS
-
STN
1h 15mdirect
easyJet Logo
07:50 - 09:10
STN
-
BFS
1h 20mdirect
£45easyJet
Sun, 7 Jun - Wed, 10 Jun
Multiple Airlines Logo
07:00 - 08:20
BFS
-
STN
1h 20mdirect
Multiple Airlines Logo
10:15 - 11:35
STN
-
BFS
1h 20mdirect
£46Multiple Airlines
Thu, 16 Apr - Sat, 18 Apr
easyJet Logo
06:35 - 07:55
BFS
-
STN
1h 20mdirect
easyJet Logo
07:50 - 09:10
STN
-
BFS
1h 20mdirect
£47easyJet
Sun, 7 Jun - Thu, 11 Jun
Multiple Airlines Logo
07:00 - 08:20
BFS
-
STN
1h 20mdirect
Multiple Airlines Logo
16:35 - 17:55
STN
-
BFS
1h 20mdirect
£48Multiple Airlines
Tue, 14 Apr - Tue, 14 Apr
easyJet Logo
06:45 - 08:05
BFS
-
STN
1h 20mdirect
easyJet Logo
21:55 - 23:10
STN
-
BFS
1h 15mdirect
£48easyJet
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 July.

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 £15 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 Tuesdays 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 November, where tickets cost £50 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £102 and £101 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 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

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

Low seasonJanuary
Cheapest flight£19
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly (43% more expensive on average)
Flight from Belfast Intl Airport to London Stansted 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 £42 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 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 £82 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 £78 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 £31 or less one-way and £57 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 5315 reviews
5.6Entertainment
7.5Crew
6.0Food
6.5Comfort
6.7Boarding
Airline reviews

I didn't eat any food so can't comment on that. The prices on the plane are extortionate (as are all prices on planes). Everything else was seemless and a great experience

8.0 ExcellentChristoph91, Mar 2026
MAN - PMI
Read more Ryanair reviews

I didn't eat any food so can't comment on that. The prices on the plane are extortionate (as are all prices on planes). Everything else was seemless and a great experience

I need assistance and I could not fault it at all. I suffer anxiety and I was always put at ease by assistance staff, and the banter was good. On board the staff was so very nice and kind and showed empathy. Thank you to them. It was my first time travelling since I lost my husband and was so grateful to them.

Food and entertainment were not available, so my rating on those items isn't actually correct. There should be a "Not relevant" or "Didn't use it" option.

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

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.

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".

My experience with British Airways was fine and dandy. Nothing truly negative to report. However, I was. asked to check my carryon bag all the way through to my desitination which prompted some huge problems. Thank goodness I kept a foldable-personal-item-bag in my carryon. I was asked to remove my valuable electronic belongings from my personal item bag, which was a camera bag full of expensive lenses and camera equipment, into another bag for the flight because it was "too big". Farbeit from me for asking further questions, but the bag was let through when I departed to Paris from America with no problems at all as I was able to explain that it was slightly oversized due to being a camera bag with a layer of protective foam which made it slightly larger. Still, this bag could and did fit perfectly under my airplain seat during my departure from America. On the flight back though, this was not the case and I was asked to remove highly valuable personal items, stow my camera bag in my checked bag, and then had to pay and overweight fee. Kinda bogus, but I was tired and wanted to get home so I complied. Regardless, it would have been nice to have had my bag retrieved during the London to Pittsburgh flight so I could put on new clothes and freshen up before take off.

The staff was extremely friendly and nice. Overall, the flight was pleasant, and the food was good. They asked me to check in my smaller cabin luggage suitcase in Mumbai as the flight was full. Fortunately, I had packed a spare set of clothes in my laptop bag so I was okay.

Flight was delayed by over two hours and that meant my connecting flight was in jeopardy but there was no acknowledgement or help from the BA staff

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

Business class on British Air with the Airbus 320 means the same seating as main cabin ( 3 - 3), but with the middle seat of each three-seat row blocked off to become a platform/table. This is decidedly NOT a business class experience. Other aspects of the flight were fine.

I Keep your expectations to low to middling with BA, or most European/ US airlines these days.

Wish the food and overall service was better. They treat Business class passengers same as economy

Old plane, sold out on snacks, just trashy seats..broken..etc

Good flight. Only negative was the bus journey from plane to the terminal. Didn’t exit t this either BA at T5

Nothing! They canceled our flight to Greece the morning we were supposed to leave and offered us another one 5 days later (for a 9 day trip). They said it was an “operational decision”! Yeah a 777 that was 2/3rds empty, so they probably sent it to the Middle East to make a fortune getting people out of there!!

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