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Cheap flights from London Heathrow Airport to Belfast from £42

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BHD
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London Heathrow to Belfast are usually found in January or March, booked 71 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Heathrow to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Belfast (BF1). 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 18 September 2025.

Round-trip from

£87

One-way from

£42

Popular in

July

Cheapest in

January

Average price

£124
British Airways
  • British Airways
  • 7/11-9/11
  • Nonstop
  • 2h 55m total
  • London to Belfast
Search Deals
British Airways
  • British Airways
  • 6/12
  • Nonstop
  • 1h 25m total
  • London to Belfast
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Heathrow to Belfast

Cheapest flights from Heathrow to Belfast
Explore the most affordable flight options available from Heathrow to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 7/1106:05LHR - BHD
Nonstop1h 25mBritish Airways
Sun 9/1110:40BHD - LHR
Nonstop1h 30mBritish Airways
Deal found 16/9£87
Thu 20/1107:45LHR - BHD
Nonstop1h 25mBritish Airways
Thu 11/1211:05BHD - LHR
Nonstop1h 30mBritish Airways
Deal found 16/9£88
Sat 1/1107:00LHR - BHD
Nonstop1h 25mBritish Airways
Sun 2/1120:25BHD - LHR
Nonstop1h 20mBritish Airways
Deal found 15/9£89
Sat 1/1109:05LHR - BHD
Nonstop1h 25mBritish Airways
Thu 12/215:05BHD - LHR
Nonstop1h 25mBritish Airways
Deal found 16/9£89
Wed 29/1007:00LHR - BHD
Nonstop1h 25mBritish Airways
Sun 2/1120:25BHD - LHR
Nonstop1h 20mBritish Airways
Deal found 16/9£91
Thu 23/1006:15LHR - BHD
Nonstop1h 20mBritish Airways
Mon 27/1017:45BHD - LHR
Nonstop1h 20mBritish Airways
Deal found 17/9£92
Fri 31/1006:05LHR - BHD
Nonstop1h 25mBritish Airways
Fri 7/1119:35BHD - LHR
Nonstop1h 20mBritish Airways
Deal found 16/9£92
Fri 31/1006:05LHR - BHD
Nonstop1h 25mBritish Airways
Wed 12/1115:40BHD - LHR
Nonstop1h 25mBritish Airways
Deal found 17/9£93
Sat 4/1007:30LHR - BHD
Nonstop1h 20mBritish Airways
Sat 4/1019:00BHD - LHR
Nonstop1h 20mBritish Airways
Deal found 16/9£94
Mon 20/1017:20LHR - BHD
Nonstop1h 25mBritish Airways
Thu 23/1006:35BHD - LHR
Nonstop1h 25mBritish Airways
Deal found 17/9£95
Mon 20/1016:15LHR - BHD
Nonstop1h 25mBritish Airways
Fri 24/1020:05BHD - LHR
Nonstop1h 20mBritish Airways
Deal found 17/9£95
Fri 17/1007:25LHR - BHD
Nonstop1h 20mBritish Airways
Thu 6/1117:45BHD - LHR
Nonstop1h 20mBritish Airways
Deal found 17/9£96

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Belfast 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 18 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Belfast that are best for you.

Fly from

Heathrow

Fly to

Belfast

Route

Depart

Return

Price

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Sat 1/11

07:00-08:25

Nonstop1h 25m

Belfast City

Sun 2/11

20:25-21:45

Nonstop1h 20m

£89

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Fri 23/1

06:05-07:30

Nonstop1h 25m

Belfast City

Fri 23/1

17:40-19:00

Nonstop1h 20m

£90

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Tue 24/2

06:15-07:40

Nonstop1h 25m

Belfast City

Thu 26/2

06:35-08:10

Nonstop1h 35m

£90

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Thu 16/10

06:15-07:35

Nonstop1h 20m

Belfast City

Thu 23/10

13:15-14:35

Nonstop1h 20m

£92

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Fri 14/11

06:05-07:30

Nonstop1h 25m

Belfast City

Sun 16/11

10:40-12:10

Nonstop1h 30m

£92

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Fri 28/11

06:05-07:30

Nonstop1h 25m

Belfast City

Tue 2/12

10:00-11:30

Nonstop1h 30m

£92

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Fri 31/10

06:05-07:30

Nonstop1h 25m

Belfast City

Mon 10/11

19:25-20:45

Nonstop1h 20m

£93

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Sat 1/11

07:00-08:25

Nonstop1h 25m

Belfast City

Tue 11/11

19:25-20:45

Nonstop1h 20m

£93

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Sat 29/11

07:00-08:25

Nonstop1h 25m

Belfast City

Mon 1/12

14:40-16:05

Nonstop1h 25m

£93

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Mon 3/11

08:55-10:20

Nonstop1h 25m

Belfast City

Mon 10/11

19:25-20:45

Nonstop1h 20m

£93

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 41 results
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Best time to book a flight from Heathrow to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Belfast. Price data was last updated on 12 September 2025.

Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Belfast. 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?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast (average of £67). Flying from London Heathrow Airport to Belfast in July is currently the most expensive (average of £90). 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 LHR to BFS?

Find hourly flight availability from Heathrow to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Belfast is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 17% on airfare.

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

Use this chart to determine the cheapest time to fly return from Heathrow to Belfast. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Belfast flight should consider departing on Tuesday at midday when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from London Heathrow Airport to Belfast?

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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. Reviews last updated 18 September 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Belfast, such as easyJet and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,822 reviews
Check prices

Comfort

6.7

Crew

7.6

Food

5.9

Overall

6.9

Entertainment

5.5

Boarding

6.7

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
easyJet
6.9
Okay
1,822 reviews
easyJet
6.9
Okay
1,822 reviews
Check prices

Comfort

6.7

Crew

7.6

Food

5.9

Overall

6.9

Entertainment

5.5

Boarding

6.7

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
British Airways
6.7
Okay
7,367 reviews
easyJet
6.9
Okay
1,822 reviews
Check prices

Comfort

6.7

Crew

7.6

Food

5.9

Overall

6.9

Entertainment

5.5

Boarding

6.7

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.

Related info for your journey

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

  • How long is the flight from London Heathrow Airport to Belfast?

    British Airways can get you from London Heathrow Airport to Belfast in just under 1h 25m. Your travel time will be generally consistent. Airlines will cover a distance of 312 mi. All flights are typically direct.

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

    Flying on easyJet is currently your cheapest option to Belfast, with prices starting at £30. Another option worth looking into is British Airways, starting at £78 return. easyJet is priced at 75% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Belfast 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?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast (average of £67). Flying from London Heathrow Airport to Belfast in July is currently the most expensive (average of £90). 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.

Top 3 airlines flying from Heathrow to Belfast

Discover the top 3 airlines that operate flights from Heathrow to Belfast. 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 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£30Average£71FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£77Average£159FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£127Average£175FlexibilityNo cancel feeOn-time79%
Search Loganair 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?

Deals for Heathrow to Belfast flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Belfast 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 with no change fees?

Yes, we can. To see specific flights from Heathrow to Belfast with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from Heathrow to Belfast on Cheapflights with our Price Alert feature and get notified when better prices are available.

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