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Cheap flights from London Heathrow Airport to Belfast Intl Airport from £83

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BFS
27 Jul — 3 Aug1
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 27 June 2026.

Thu 13/806:15
LHR
-
BFS
2 stops8h 50m
Multiple Airlines
Mon 17/814:40
BFS
-
LHR
1 stop6h 45m
Multiple Airlines
Deal found 24/6£238
Fri 14/817:35
LHR
-
BFS
1 stop5h 15m
Multiple Airlines
Mon 17/820:35
BFS
-
LHR
1 stop11h 20m
Multiple Airlines
Deal found 26/6£242
Sun 6/920:50
LHR
-
BFS
1 stop11h 50m
Multiple Airlines
Thu 10/910:15
BFS
-
LHR
1 stop9h 50m
Multiple Airlines
Deal found 25/6£246
Fri 24/718:15
LHR
-
BFS
1 stop5h 05m
Multiple Airlines
Mon 27/721:05
BFS
-
LHR
2 stops17h 40m
Multiple Airlines
Deal found 23/6£251
Fri 21/817:10
LHR
-
BFS
1 stop5h 15m
Multiple Airlines
Wed 26/806:15
BFS
-
LHR
1 stop8h 00m
Multiple Airlines
Deal found 26/6£257
Fri 21/814:40
LHR
-
BFS
2 stops5h 40m
Multiple Airlines
Mon 24/814:40
BFS
-
LHR
1 stop6h 45m
Multiple Airlines
Deal found 26/6£263
Fri 24/719:35
LHR
-
BFS
2 stops13h 30m
Multiple Airlines
Fri 7/811:25
BFS
-
LHR
1 stop7h 10m
Multiple Airlines
Deal found 26/6£264
Fri 24/718:15
LHR
-
BFS
1 stop5h 05m
Multiple Airlines
Tue 28/716:05
BFS
-
LHR
2 stops17h 05m
Multiple Airlines
Deal found 23/6£273
Fri 21/815:00
LHR
-
BFS
1 stop7h 50m
Multiple Airlines
Thu 27/816:40
BFS
-
LHR
1 stop4h 15m
Multiple Airlines
Deal found 26/6£280
Thu 2/720:30
LHR
-
BFS
1 stop12h 10m
Multiple Airlines
Mon 27/708:40
BFS
-
LHR
2 stops11h 40m
Multiple Airlines
Deal found 22/6£283
Mon 20/716:50
LHR
-
BFS
2 stops6h 00m
Multiple Airlines
Mon 3/814:40
BFS
-
LHR
1 stop6h 45m
Multiple Airlines
Deal found 22/6£284

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 27 June 2026.

Round-trip from

£238

One-way from

£83

Popular in

June

Cheapest in

November

Average price

£168
13/8-17/8
  • 13/8-17/8
  • 3 total stops
  • 15h 35m total
  • London to Belfast
Search Deals
6/9
  • 6/9
  • 1 total stop
  • 22h 45m total
  • London to Belfast
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£8 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 June 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 27 June 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

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 13/8

06:15-11:45

1 stop5h 30m

Belfast Intl

Mon 17/8

14:40-21:25

1 stop6h 45m

£295

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 11/7

20:50-12:25

1 stop15h 35m

Belfast Intl

Mon 27/7

09:40-20:05

1 stop10h 25m

£323

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 21/7

15:00-10:40

1 stop19h 40m

Belfast Intl

Tue 4/8

13:35-21:25

1 stop7h 50m

£340

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 5/8

11:30-00:05

2 stops12h 35m

Belfast Intl

Thu 13/8

06:20-17:50

2 stops11h 30m

£354

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 29/8

06:15-14:25

1 stop8h 10m

Belfast Intl

Mon 31/8

15:35-21:25

1 stop5h 50m

£363

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 6/8

06:15-11:45

1 stop5h 30m

Belfast Intl

Thu 13/8

07:30-13:45

1 stop6h 15m

£401
Fastest return journey

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 14/8

17:10-22:25

1 stop5h 15m

Belfast Intl

Mon 17/8

10:05-16:15

1 stop6h 10m

£403

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 16/7

14:45-20:35

1 stop5h 50m

Belfast Intl

Mon 20/7

10:05-19:25

1 stop9h 20m

£405

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 16/7

14:45-20:35

1 stop5h 50m

Belfast Intl

Sun 19/7

13:25-19:30

1 stop6h 05m

£410

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 10/8

06:30-13:50

1 stop7h 20m

Belfast Intl

Mon 17/8

10:05-16:15

1 stop6h 10m

£417

Flights are sorted by cheapest return flights first.

Deals found on 23/6

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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?

Booking 84 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of £116). Flying from London Heathrow Airport to Belfast Intl Airport in June is currently the most expensive (average of £168). 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 27 June 2026.
Check out reviews from past customers who have flown with easyJet,British Airways, andRyanair 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
1,912 reviews
Check prices

Crew

7.7

Overall

6.9

Entertainment

5.5

Food

5.9

Comfort

6.8

Boarding

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LTN - LEI

Staff professional and friendly Plane clean and comfortable One passenger had problem with his seat and the crew sorted it immediately.
easyJet
6.9
Okay
1,912 reviews
easyJet
6.9
Okay
1,912 reviews
Check prices

Crew

7.7

Overall

6.9

Entertainment

5.5

Food

5.9

Comfort

6.8

Boarding

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LTN - LEI

Staff professional and friendly Plane clean and comfortable One passenger had problem with his seat and the crew sorted it immediately.
British Airways
6.7
Okay
8,070 reviews
easyJet
6.9
Okay
1,912 reviews
Check prices

Crew

7.7

Overall

6.9

Entertainment

5.5

Food

5.9

Comfort

6.8

Boarding

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LTN - LEI

Staff professional and friendly Plane clean and comfortable One passenger had problem with his seat and the crew sorted it immediately.
Ryanair
6.5
Okay
easyJet
6.9
Okay
1,912 reviews
Check prices

Crew

7.7

Overall

6.9

Entertainment

5.5

Food

5.9

Comfort

6.8

Boarding

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LTN - LEI

Staff professional and friendly Plane clean and comfortable One passenger had problem with his seat and the crew sorted it immediately.

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 £24. Other airlines that can offer you cheap pricing are easyJet, from £35, and British Airways, from £91. These flights start at 83% 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of £116). Flying from London Heathrow Airport to Belfast Intl Airport in June is currently the most expensive (average of £168). 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

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.

Top 3 airlines flying from Heathrow to Belfast Intl

Discover the top 3 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 27 June 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£24Average£48FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£35Average£98FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£91Average£142FlexibilityNo 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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