£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 27/3. 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 27% 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: £76
Ryanair
Fri 1/5Fri 8/5
BFS - STN • Direct
Cheapest direct flights
£38
Typical prices: £54-£163
Ryanair
Thu 16/4Mon 20/4
BFS - STN • Direct
Advice from real travellers
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
Cheapest • from £38 (return)
Best reviews • 6.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with British Airways, Ryanair, and easyJet. Average duration is 1h 22m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 78% 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
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

Fri, 1 May - Fri, 8 May
Ryanair Logo
07:35 - 08:55
BFS
-
STN
1h 20mdirect
Ryanair Logo
21:40 - 23:00
STN
-
BFS
1h 20mdirect
£38Ryanair
Sun, 3 May - Sun, 10 May
Ryanair Logo
12:20 - 13:40
BFS
-
STN
1h 20mdirect
Ryanair Logo
10:35 - 11:55
STN
-
BFS
1h 20mdirect
£39Ryanair
Sun, 3 May - Sun, 10 May
Ryanair Logo
12:20 - 13:40
BFS
-
STN
1h 20mdirect
Ryanair Logo
10:35 - 11:55
STN
-
BFS
1h 20mdirect
£40Ryanair
Thu, 2 Apr - Wed, 8 Apr
Ryanair Logo
21:25 - 22:45
BFS
-
STN
1h 20mdirect
Ryanair Logo
22:00 - 23:20
STN
-
BFS
1h 20mdirect
£40Ryanair
Fri, 17 Apr - Fri, 24 Apr
easyJet Logo
20:25 - 21:40
BFS
-
STN
1h 15mdirect
easyJet Logo
22:10 - 23:25
STN
-
BFS
1h 15mdirect
£41easyJet
Sun, 3 May - Sun, 10 May
easyJet Logo
07:00 - 08:10
BFS
-
LTN
1h 10mdirect
easyJet Logo
20:15 - 21:30
LTN
-
BFS
1h 15mdirect
£47easyJet
Tue, 8 Sep - Tue, 15 Sep
British Airways Logo
13:45 - 15:10
BHD
-
LHR
1h 25mdirect
British Airways Logo
07:30 - 08:50
LHR
-
BHD
1h 20mdirect
£99British Airways
Wed, 29 Apr - Tue, 5 May
British Airways Logo
18:20 - 19:40
BHD
-
LHR
1h 20mdirect
British Airways Logo
18:05 - 19:25
LHR
-
BHD
1h 20mdirect
£100British Airways
Wed, 20 May - Thu, 21 May
Multiple Airlines Logo
18:20 - 22:40
BHD
-
STN
4h 20m
1 stop
Multiple Airlines Logo
06:05 - 14:30
STN
-
BHD
8h 25m
1 stop
£100Multiple Airlines
Wed, 15 Apr - Mon, 27 Apr
Multiple Airlines Logo
11:40 - 20:00
BHD
-
STN
8h 20m
1 stop
Multiple Airlines Logo
06:05 - 11:55
STN
-
BHD
5h 50m
1 stop
£105Multiple 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 May.

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 £15 on the route between Belfast Intl Airport (BFS) and London Stansted Airport (STN). Over the past month, this route was, on average, 78% 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 Tuesday, 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 November, where tickets cost £49 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £101 and £100 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 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 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 Stansted 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 £38 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

British Airways,Ryanair,easyJet

British Airways,Ryanair, +1 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 5302 reviews
5.6Entertainment
6.7Boarding
6.5Comfort
6.0Food
7.5Crew
Airline reviews

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.

10.0 ExcellentCaroline, Mar 2026
BRS - ALC
Read more Ryanair reviews

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

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

We were bumped despite seats existing on flight While checkin attendants were helpful Easyjet management was not. Only after threats were we allowed on plane at last minute. The online help desk was useless and waste of time (over an hour of useless chats)

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".

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!!

WiFi wasn’t available to economy until the end of the flight.

Boarding crew were extremely rude. At check in, I showed a medical note from a surgeon stating that I had a medical problem that caused me to end up in an emergency room. The surgeon requested that I get an upgrade so I can travel back home comfortably since I was in a lot of pain. I was alone with my daughters (9 and 14). They made a huge deal about giving me seats although there were so many empty seats in business. Finally, I paid a hefty price for it and the seats were exactly the same as in economy cabins but not as good because there was a forced tray in the middle seat that I couldnt even lift so I can lay down.

Very good staff members with sincere passion and responsibility in their job.

We were unable to check in on line with no explanation! Despite arriving at the airport 3 hours before deprture, my wife and I had no allocated seats and ended up being seated seperately. This is unacceptable! We were both ib the middle of the centre of the aircraft, despite having previously requested an aisle and seat next to it when booking and having been an Exec Club member for 25 years - so much for loyalty! The seats were extremely uncomfortable for such a long flight. I fly a lot and these were, by far, the most uncomfortable seats I've had in many years. It was all fine until we arrived at LHR where we got off the plane quickly, but then had to wait more than 45 minutes in the baggage hall for our bags to arrive, despite the fact that some luggage was already off when we got to the carousel. After 14 1/2 hours flying, this is completely unacceptable and ruined the experience for us.

Very please with the seating that the Kayak staff booked for us!

I liked the movie selection and the speed getting the luggage. I did not like the fact that for premium they did not have a personal kit with toothpaste, I travel all the time in premium economy and bussiness and althought the kit might bot be the same at least you have the smalles kit in premium economy. I did not like either that because i was in the last row of premium economy nothing made it to my seat. They run out of the food I wanted ( it is a surprise because there were only 6-7 rows. They would run out of orange jouice were thy were passing water/orange juice around, they run out of some alcohol. I am undertand running out of it but I don’t understand why mot getting kore. The service I received in row 11 was different from the service in rows 7,8…. Also the screen on my tv was broken. It did not respond to touch. So, in conclusion, if I compare my flight going to Europe with an American airline plane in premium and the one with British, British expereince was significantly much worse. This company is declining fast.

The crew on the flight were not particularly pleasant and fluid restriction was an issue. I was not allowed to fill my water bottle. Crew didn't check on passengers other than meal service.

BA is a fine airline. The problem lies with XCOVER INSURANCE, that KAYAK uses. Very poor service from insurance. No telephone number to contact XCOVER. Their replies are inadequate & overall very bad insurance. I wish kayak uses standard insurance company., such as AIG.

British Airways offers amenities subpar with all other airlines flying internationally. Sharing tis based on my experience with flying at least five other airline between IAD-DEL in the last six months.

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.