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Cheap flights from London Heathrow Airport to Belfast Intl Airport from £76

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BFS
26 Mar — 2 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Belfast Intl
Explore the most affordable flight options available from Heathrow to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 February 2026.

Thu 9/407:05
LHR
-
BFS
1 stop7h 55m
Multiple Airlines
Thu 16/421:35
BFS
-
LHR
1 stop11h 35m
Multiple Airlines
Deal found 23/2£201
Fri 17/714:40
LHR
-
BFS
1 stop4h 50m
Multiple Airlines
Sun 19/717:05
BFS
-
LHR
1 stop3h 55m
Multiple Airlines
Deal found 22/2£204
Sun 12/420:50
LHR
-
BFS
1 stop11h 50m
Multiple Airlines
Wed 22/409:35
BFS
-
LHR
1 stop10h 30m
Multiple Airlines
Deal found 20/2£216
Sun 1/316:30
LHR
-
BFS
2 stops17h 55m
Multiple Airlines
Thu 5/312:10
BFS
-
LHR
2 stops9h 25m
Multiple Airlines
Deal found 23/2£229
Sat 7/307:45
LHR
-
BFS
1 stop4h 25m
Multiple Airlines
Mon 9/308:30
BFS
-
LHR
1 stop4h 35m
Multiple Airlines
Deal found 21/2£230
Wed 8/420:50
LHR
-
BFS
1 stop12h 55m
Multiple Airlines
Wed 15/409:35
BFS
-
LHR
1 stop10h 30m
Multiple Airlines
Deal found 21/2£235
Fri 24/418:15
LHR
-
BFS
1 stop3h 25m
Multiple Airlines
Mon 27/414:20
BFS
-
LHR
1 stop3h 40m
Multiple Airlines
Deal found 22/2£241
Sun 24/518:00
LHR
-
BFS
1 stop3h 25m
Multiple Airlines
Tue 26/507:35
BFS
-
LHR
1 stop5h 50m
Multiple Airlines
Deal found 22/2£244
Sat 18/408:55
LHR
-
BFS
1 stop6h 40m
Multiple Airlines
Tue 28/407:00
BFS
-
LHR
2 stops13h 05m
Multiple Airlines
Deal found 21/2£249
Sun 3/518:00
LHR
-
BFS
1 stop3h 25m
Multiple Airlines
Thu 7/508:10
BFS
-
LHR
1 stop3h 50m
Multiple Airlines
Deal found 20/2£251

Find flight deals from Heathrow to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 24 February 2026.

Round-trip from

£201

One-way from

£76

Popular in

May

Cheapest in

March

Average price

£141
9/4-16/4
  • 9/4-16/4
  • 2 total stops
  • 19h 30m total
  • London to Belfast
Search Deals
18/6
  • 18/6
  • 1 total stop
  • 4h 20m total
  • London to Belfast
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£7 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 858,174 searches. Data last updated 24 February 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Belfast Intl Airport that are best for you.

Fly from

Heathrow

Fly to

Belfast Intl

Route

Depart

Return

Price

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 8/4

20:50-09:45

1 stop12h 55m

Belfast Intl

Wed 15/4

09:35-20:05

1 stop10h 30m

£229

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 18/4

08:55-15:35

1 stop6h 40m

Belfast Intl

Tue 28/4

07:00-20:05

2 stops13h 05m

£249

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 27/6

16:15-21:15

1 stop5h 00m

Belfast Intl

Mon 29/6

14:20-18:00

1 stop3h 40m

£274

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 13/3

06:20-13:40

1 stop7h 20m

Belfast Intl

Mon 16/3

14:40-21:25

1 stop6h 45m

£277

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 7/3

07:45-12:10

1 stop4h 25m

Belfast Intl

Sun 8/3

17:05-20:55

1 stop3h 50m

£306

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 23/3

14:25-19:00

1 stop4h 35m

Belfast Intl

Thu 26/3

07:05-11:00

1 stop3h 55m

£315

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 6/3

06:30-13:40

1 stop7h 10m

Belfast Intl

Mon 9/3

09:55-16:05

1 stop6h 10m

£316

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 13/3

17:55-22:20

1 stop4h 25m

Belfast Intl

Sun 15/3

17:05-20:55

1 stop3h 50m

£321

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 8/3

14:05-18:30

1 stop4h 25m

Belfast Intl

Tue 10/3

12:10-19:50

2 stops7h 40m

£351

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 18/6

18:00-22:20

1 stop4h 20m

£76

Flights are sorted by cheapest return flights first.

Deals found on 22/2

Showing 1-10 of 20 results
1
2

Best time to book a flight from Heathrow to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Heathrow with our price prediction graph.
Estimated return 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 Heathrow Airport to Belfast Intl Airport

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Belfast Intl. Price data was last updated on 20 February 2026.

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Belfast Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of £40). Flying from London Heathrow Airport to Belfast Intl Airport in June is currently the most expensive (average of £88). 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.

How much does it cost for a return flight from London Heathrow Airport 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 24 February 2026.
Check out reviews from past customers who have flown with easyJet and British Airways from London Heathrow Airport 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
1,875 reviews
Check prices

Crew

7.6

Entertainment

5.5

Overall

6.9

Comfort

6.7

Boarding

6.7

Food

5.9

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
1,875 reviews
easyJet
6.9
Okay
1,875 reviews
Check prices

Crew

7.6

Entertainment

5.5

Overall

6.9

Comfort

6.7

Boarding

6.7

Food

5.9

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
7,762 reviews
easyJet
6.9
Okay
1,875 reviews
Check prices

Crew

7.6

Entertainment

5.5

Overall

6.9

Comfort

6.7

Boarding

6.7

Food

5.9

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 Heathrow 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 Heathrow Airport to Belfast Intl Airport round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Belfast Intl Airport round-trip from £32. Another airline that can offer you cheap pricing is British Airways. These flights start at 76% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Belfast Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of £40). Flying from London Heathrow Airport to Belfast Intl Airport in June is currently the most expensive (average of £88). 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

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Heathrow to Belfast Intl

Discover the top 2 airlines that operate flights from Heathrow 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 858,174 searches. Data last updated 24 February 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£32Average£89FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£84Average£138FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Belfast Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Belfast Intl from Heathrow today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Belfast Intl?

Cheapflights helps you find that perfect flight to Belfast Intl from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to Belfast Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Belfast Intl with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Belfast Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Heathrow today and book when prices fit your budget.

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