BFS - LON

£27 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 5/9. 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

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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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

mer., 1 oct. - mer., 8 oct.
easyJet Logo
21:05 - 22:30BFS-LGW
1h 25mdirect
easyJet Logo
06:00 - 07:30LGW-BFS
1h 30mdirect
£54easyJet
Find Deal
lun., 15 sept. - sam., 20 sept.
easyJet Logo
22:00 - 08:20BFS-STN
10h 20m1 stop
easyJet Logo
07:50 - 09:10STN-BFS
1h 20mdirect
£54easyJet
Find Deal
ven., 12 sept. - ven., 19 sept.
Ryanair Logo
06:05 - 07:25BFS-STN
1h 20mdirect
Ryanair Logo
08:45 - 10:00STN-BFS
1h 15mdirect
£55Ryanair
Find Deal
sam., 13 sept. - mar., 23 sept.
easyJet Logo
15:35 - 16:45BFS-LTN
1h 10mdirect
easyJet Logo
19:20 - 20:35LTN-BFS
1h 15mdirect
£55easyJet
Find Deal
mar., 30 sept. - mar., 7 oct.
easyJet Logo
20:55 - 22:25BFS-LGW
1h 30mdirect
easyJet Logo
14:20 - 15:50LGW-BFS
1h 30mdirect
£55easyJet
Find Deal
dim., 21 déc. - mar., 23 déc.
Ryanair Logo
05:45 - 07:05BFS-STN
1h 20mdirect
Ryanair Logo
07:45 - 09:05STN-BFS
1h 20mdirect
£55Ryanair
Find Deal
mer., 10 sept. - dim., 14 sept.
easyJet Logo
20:10 - 21:20BFS-LTN
1h 10mdirect
easyJet Logo
08:40 - 10:00LTN-BFS
1h 20mdirect
£55easyJet
Find Deal
jeu., 4 sept. - dim., 14 sept.
 Logo
20:10 - 21:25BFS-STN
1h 15mdirect
 Logo
06:45 - 08:00STN-BFS
1h 15mdirect
ven., 5 sept. - lun., 8 sept.
 Logo
21:40 - 23:00BFS-STN
1h 20mdirect
 Logo
08:45 - 10:05STN-BFS
1h 20mdirect
sam., 30 août - dim., 31 août
Ryanair Logo
19:35 - 20:55BFS-STN
1h 20mdirect
Ryanair Logo
06:45 - 08:00STN-BFS
1h 15mdirect
£108Ryanair
Find Deal
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?

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, 42% 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 August, where the average cost of round-trip tickets is £97 and £97 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 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

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

Low seasonMay
Cheapest flight£27
Best time to beat the crowds (0% 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 £36 for a one-way ticket and £73 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.

  • 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 £65 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 £89 and an overall rating of 6.8.

  • 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 £46 or less one-way and £68 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
easyJetOverall score based on 1820 reviews
5.5Entertainment
6.7Boarding
5.9Food
6.7Comfort
7.6Crew
Airline reviews

I got caught using a stolen credit card number. Michelle Siziba is my name Nice to London Gatwick on 7/31/25.

2.0 MediocreAnonymous, Aug 2025NCE - LGW
Read more easyJet reviews

I got caught using a stolen credit card number. Michelle Siziba is my name Nice to London Gatwick on 7/31/25.

Not happy with price of luggage or that we had no choice but to pay whether cabin or hold. I didn't book seats but this is unnecessary extra money along with suitcase

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

sadly in Basel & Naples- no jetway we had to climb up and down stairs with our max size carry-on luggage, which was not fun!!!

This was our first time using them. I gave okay ratings for food and entertainment because it was minimal or not provided so I couldn't judge, but much better than most budget carriers we have ever used.

We were charged a ridiculous amount for a name spelling error on ticket which I would’ve corrected if I received pre-check info more than 1/2hr before flight. Then we were told at ticket counter that our bags were fine for boarding but then we’re charged another ridiculous amount to take in our luggage despite being told differently. Flight itself was great. Charges were unfair.

Apart from an email about re configuring passenger seating less than 24hrs before flying it was all good.

There were a lot (4 I think) of EasyJet flights leaving Agadir, we arrived two and a half ours before our flight. Very slow to get through the booking in, passport control and security!! We had booked in on line but had to Queue with others who had not to drop our bags off!,

We boarded and then sat on the tarmac for an hour….probably not E Jets fault. But the gentleman that checked us in and took our luggage was exceptionally friendly and calming for early morning/ confused passengers. As always, it’s the people that make or break an experience, right?

I was hesitant to book with a low cost airline due to previous experience but Easy Jet surpassed my expectations. I would definitely book a flight with them again! Seemless booking, upfront about baggage fees, professional, and helpful staff.

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.

A delay of almost 3 hours. It was evident that the staff wanted us to board urgently, to the point of rudeness, to avoid paying compensation

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

On time arrival but the aircraft had seen better days and needed a deep clean.

It was appalling, full of young people who were drunk and disobeying instructions to sit down. Crew did nothing to enforce. There was a Ryanair pilot sitting in the aisle opposite me who talked through out the safety briefing so loudly I couldn’t hear. Whole thing felt unsafe

Delayed for 2 hours lack of communication no refreshments as promised and the drinks on board were not as ordered and refused to refund

Straight forward checking as long as you have completed every single detail online, prior to checking day. Efficient boarding, seating is ok for a two hour flight. Fulfilledour travel requirements from Manchester to Marseille.

Good but both flights were delayed by nearly one hour making boarding tedious. We had to wait with no information

I couldn’t understand the aircraft tannoy announcements I was in seat 20C - nobody in our row could either. Speakers a bit too quiet plus messages read out too fast. Otherwise excellent flight. (Flight delayed by 50 mins)

Friendly hosts/hostesses; dinner was of acceptable, but mediocre standard

Very caring crew on board. Didn’t have dinner as I was sleeping. Was seating in the emergency row so I had comfortable leg room

Had a nice little suite although I couldn’t close the door (but I didn’t ask anyone to help). 5K is a nice seat and very private (you look in on first class). Enjoyable flight and nice crew.

Crew was excellent. And no surprise that the seats aren’t comfortable at all. But that is every airline.

Although the crew were great and the good nice, I might as well have been on Ryanair for the amount of space I had. Not good enough BA. I’d rather pay more and not feel like a human sardine.

Love the A380 - loads of room. Headphone socket on my seat didn’t work. Sounds like a trivial issue? Well when flying long-haul the in-flight entertainment is what keeps you going so when it doesn’t work it’s a disaster. Pay attention to the details please BA. Spoiled what was otherwise an excellent flight with the usual brilliant crew.

Crew were fantastic can’t fault them at all. Couldn’t do enough for us

Crying baby the ENTIRE flight. Not your fault, but I paid 2700 for a premium economy ticket and it wasn't worth it. should have just stuck with coach. flight attendants very mediocre - minimal effort. Plane didn't seem very clean. Didn't have any cleansing wipes - most airlines give you this when you board. Flat screen scrolling didn't work. Toiletry case a joke - why bother at all?

I was told to be there to check in three hours before my flight and the counter only opened up two hours before. Apparently that is standard. So that was an hour I could have spent walking around Larnaca that was wasted. But besides that it was great

The overall seat and cushion needs to be updated. It was hard and no support. My butt was numb for most of the flight. The food was subpar at best being in premium economy cost. The flight attendants were excellent and attentive during the whole flight. Disappointed I had to select our seats 24 hours prior.

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.

After you made us check-in I tried to add a suitcase in the internet and also to get help by chet. Nothing work and we pay 60 pounds at Airport. Comper to Easyjet to do the same, was easy and customer friendly.

Boarding was like being hoarded like cattle, all penned in in an area way to small

I missed the flight from Manchester to Dublin because of poor informations from Aer Lingus and the airport, no possibility to check in online, they don't respond to phone calls, I had to buy another tickets to enable me travel to Dublin from Manchester. I want my money to refund.

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

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