HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Belfast Intl

$135+ Cheap flights from London (LON) to Belfast Intl (BFS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BFS
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from London to Belfast Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from London to Belfast Intl are usually found in January or March, booked 81 days in advance, depart on a Monday or Sunday and return on a Monday

Cheap flight deals from London to Belfast Intl

Cheapest flights from London to Belfast Intl
Explore the most affordable flight options available from London to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:00 amLHR - BFS
1 stop8h 25mMultiple Airlines
Tue 12/231:55 pmBFS - LHR
2 stops7h 10mMultiple Airlines
Deal found 12/15$589
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:00 amLHR - BFS
1 stop8h 25mMultiple Airlines
Mon 12/222:35 pmBFS - LHR
2 stops6h 30mMultiple Airlines
Deal found 12/15$599
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:00 amLHR - BFS
1 stop5h 50mMultiple Airlines
Wed 12/248:50 amBFS - LHR
2 stops6h 45mMultiple Airlines
Deal found 12/15$625
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:00 amLHR - BFS
1 stop6h 25mMultiple Airlines
Wed 12/248:50 amBFS - LHR
2 stops6h 45mMultiple Airlines
Deal found 12/15$645
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:00 amLHR - BFS
1 stop5h 50mMultiple Airlines
Tue 12/231:55 pmBFS - LHR
2 stops7h 10mMultiple Airlines
Deal found 12/15$650
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:00 amLHR - BFS
1 stop8h 25mMultiple Airlines
Fri 12/267:30 amBFS - LHR
1 stop9h 10mMultiple Airlines
Deal found 12/15$660
This Kiwi.com deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/202:25 pmLHR - BFS
1 stop5h 00mMultiple Airlines
Fri 12/267:30 amBFS - LHR
1 stop9h 10mMultiple Airlines
Deal found 12/13$787
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/212:25 pmLHR - BFS
1 stop7h 55mMultiple Airlines
Fri 12/267:30 amBFS - LHR
1 stop6h 10mMultiple Airlines
Deal found 12/15$790
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:00 amLHR - BFS
1 stop8h 25mMultiple Airlines
Sat 12/272:05 pmBFS - LHR
1 stop7h 20mMultiple Airlines
Deal found 12/15$794
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:00 amLHR - BFS
1 stop5h 50mMultiple Airlines
Fri 12/267:30 amBFS - LHR
1 stop6h 10mMultiple Airlines
Deal found 12/15$813
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:00 amLHR - BFS
1 stop5h 50mMultiple Airlines
Sat 12/275:55 amBFS - LHR
1 stop7h 45mMultiple Airlines
Deal found 12/15$832

Find flight deals from London to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Belfast Intl (BFS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 15, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$456
(Kiwi.com)

One-way from

$135
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$120

Good round-trip deal

$57 or less

Good one-way deal

$52 or less
Provider with most accurate pricing for London (LON)-Belfast Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Belfast Intl flights.
Search Deals
From London (LON) to Belfast Intl
Search Deals
One-way flight from London (LON) to Belfast Intl
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from London (LON) to Belfast Intl.
Search Deals
Price to beat on a one-way flight from London (LON) to Belfast Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Belfast Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from London to Belfast Intl Airport that are best for you.

Fly from

London

Fly to

Belfast Intl

Route

Depart

Return

Price

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 2/1

7:00 am-12:45 pm

1 stop5h 45m

Belfast Intl

Thu 2/12

7:05 am-2:25 pm

2 stops7h 20m

$456

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 1/29

6:35 am-3:25 pm

2 stops8h 50m

Belfast Intl

Thu 2/5

10:10 am-4:40 pm

1 stop6h 30m

$564

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 2/1

7:00 am-12:45 pm

1 stop5h 45m

Belfast Intl

Thu 2/5

10:10 am-4:40 pm

1 stop6h 30m

$633

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 1/13

2:40 pm-8:15 pm

2 stops29h 35m

Belfast Intl

Fri 1/23

9:00 pm-1:40 pm

2 stops16h 40m

$875

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 2/15

2:25 pm-10:20 pm

1 stop7h 55m

Belfast Intl

Sat 2/21

2:05 pm-9:40 pm

2 stops7h 35m

$1,622

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 1/10

9:55 am-10:00 pm

2 stops12h 05m

$135

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 3/7

9:55 am-8:30 pm

2 stops10h 35m

$139

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 3/13

7:00 am-12:50 pm

1 stop5h 50m

$146

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 2/14

9:45 am-10:00 pm

2 stops12h 15m

$157

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 3/6

7:00 am-11:15 am

1 stop28h 15m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 15 results
1
2

Compare providers for flights from London to Belfast Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to Belfast Intl in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
OneTravelPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London-Belfast Intl Airport flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on London-Belfast Intl Airport flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from London-Belfast Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London-Belfast Intl Airport flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-Belfast Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from London to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Belfast Intl Airport

How far ahead should I book a flight from London to Belfast Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from London to Belfast Intl. Price data was last updated on December 12, 2025.

The best time to book flights from London to Belfast Intl Airport is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London to Belfast Intl Airport?

Currently, January is the cheapest month in which you can book a flight from London to Belfast Intl Airport (average of $19). Flying from London to Belfast Intl Airport in August is currently the most expensive (average of $53). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to BFS?

Find hourly flight availability from London to Belfast Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

One of the essential ways to save on airfare from London to Belfast Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 28% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from London to Belfast Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their London to Belfast Intl Airport flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Belfast Intl Airport

Explore weekly flight availability from London to Belfast Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 15, 2025.

The most flights from LON to BFS are scheduled on a Monday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 on average).

How much does it cost to fly round-trip from London to Belfast Intl Airport?

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast Intl. Reviews last updated December 15, 2025.
Peruse reviews from past customers who have flown with easyJet, Ryanair, and British Airways from London to Belfast Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,851 reviews

Comfort

6.7

Crew

7.6

Boarding

6.7

Overall

6.9

Food

5.9

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

muhon,Oct 2025

MAN - GVA

Service and quality and the price is great .definitely recomondable .
easyJet
6.9
Okay
1,851 reviews
easyJet
6.9
Okay
1,851 reviews

Comfort

6.7

Crew

7.6

Boarding

6.7

Overall

6.9

Food

5.9

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

muhon,Oct 2025

MAN - GVA

Service and quality and the price is great .definitely recomondable .
Ryanair
6.8
Okay
5,220 reviews
easyJet
6.9
Okay
1,851 reviews

Comfort

6.7

Crew

7.6

Boarding

6.7

Overall

6.9

Food

5.9

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

muhon,Oct 2025

MAN - GVA

Service and quality and the price is great .definitely recomondable .
British Airways
6.7
Okay
7,575 reviews
easyJet
6.9
Okay
1,851 reviews

Comfort

6.7

Crew

7.6

Boarding

6.7

Overall

6.9

Food

5.9

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

muhon,Oct 2025

MAN - GVA

Service and quality and the price is great .definitely recomondable .
Ryanair
6.3
Okay
easyJet
6.9
Okay
1,851 reviews

Comfort

6.7

Crew

7.6

Boarding

6.7

Overall

6.9

Food

5.9

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

muhon,Oct 2025

MAN - GVA

Service and quality and the price is great .definitely recomondable .

Related info for your journey

Find useful and relevant information for your journey from London to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from London to Belfast Intl Airport round-trip?

    Flying on easyJet is currently your cheapest option to Belfast Intl Airport, with prices starting at $20. Additional round-trip tickets that might be worth considering are offered by Ryanair and British Airways, with the lowest prices starting at $20 and $112, respectively. You may be able to fly from London to Belfast Intl Airport for 77% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from London to Belfast Intl Airport one-way?

    The cheapest airlines for a one-way flight from London to Belfast Intl Airport are easyJet ($21), Ryanair ($30), and British Airways ($52).

  • Can I find deals for flights from London to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on London to Belfast Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Belfast Intl.

  • Can I find deals for business class flights from London to Belfast Intl?

    Yes. Cheapflights offers flight deals from London to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from London to Belfast Intl Airport (average of $19). Flying from London to Belfast Intl Airport in August is currently the most expensive (average of $53). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Belfast Intl flights
Edinburgh to Belfast Intl flights

Top 3 airlines flying from London to Belfast Intl

Discover the top 3 airlines that operate flights from London to Belfast Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest$20Average$91FlexibilityNo cancel feeOn-time86%
RyanairCheapest$20Average$84FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$111Average$183FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.