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Cheap flights from Belfast to London Heathrow Airport from £51

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LHR
3 Sep — 10 Sep1
1 adult

Cheapflights Tip: The best prices from Belfast to London Heathrow are usually found in January or March, booked 58 days in advance, depart on a Thursday or Tuesday and return on a Wednesday

Cheap flight deals from Belfast to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Heathrow (LHR). 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 29 August 2025.

Round-trip from

£87

One-way from

£51

Popular in

August

Cheapest in

January

Average price

£142
British Airways
  • British Airways
  • 5/11-20/11
  • Nonstop
  • 3h 00m total
  • Belfast to London
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British Airways
  • British Airways
  • 1/12
  • Nonstop
  • 1h 20m total
  • Belfast to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Belfast to Heathrow

Cheapest flights from Belfast to Heathrow
Explore the most affordable flight options available from Belfast to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Wed 5/1106:35BHD - LHR
Nonstop1h 35mBritish Airways
Thu 20/1106:50LHR - BHD
Nonstop1h 25mBritish Airways
Deal found 28/8£87
Fri 14/1106:45BHD - LHR
Nonstop1h 35mBritish Airways
Fri 14/1116:30LHR - BHD
Nonstop1h 30mBritish Airways
Deal found 27/8£87
Fri 5/1219:35BHD - LHR
Nonstop1h 20mBritish Airways
Sun 7/1206:50LHR - BHD
Nonstop1h 25mBritish Airways
Deal found 27/8£89
Fri 21/1106:45BHD - LHR
Nonstop1h 35mBritish Airways
Sun 23/1106:50LHR - BHD
Nonstop1h 25mBritish Airways
Deal found 27/8£90
Fri 14/1119:35BHD - LHR
Nonstop1h 20mBritish Airways
Mon 24/1107:00LHR - BHD
Nonstop1h 25mBritish Airways
Deal found 27/8£90
Mon 27/1017:45BHD - LHR
Nonstop1h 20mBritish Airways
Wed 29/1007:00LHR - BHD
Nonstop1h 25mBritish Airways
Deal found 28/8£92
Fri 17/1020:05BHD - LHR
Nonstop1h 20mBritish Airways
Sun 19/1010:55LHR - BHD
Nonstop1h 20mBritish Airways
Deal found 28/8£93
Wed 8/1018:15BHD - LHR
Nonstop1h 20mBritish Airways
Thu 9/1006:15LHR - BHD
Nonstop1h 20mBritish Airways
Deal found 28/8£93
Fri 3/1006:35BHD - LHR
Nonstop1h 25mBritish Airways
Sun 5/1010:55LHR - BHD
Nonstop1h 20mBritish Airways
Deal found 28/8£95
Sat 4/1019:00BHD - LHR
Nonstop1h 20mBritish Airways
Sun 5/1010:55LHR - BHD
Nonstop1h 20mBritish Airways
Deal found 27/8£95
Thu 2/1006:35BHD - LHR
Nonstop1h 25mBritish Airways
Thu 9/1006:15LHR - BHD
Nonstop1h 20mBritish Airways
Deal found 27/8£99
Thu 18/919:35BFS - LHR
1 stop12h 25mMultiple Airlines
Tue 23/906:15LHR - BFS
1 stop12h 50mMultiple Airlines
Deal found 28/8£208

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to Heathrow 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 29 August 2025.
Use the filters below to find and compare flights from Belfast to London Heathrow Airport that are best for you.

Fly from

Belfast

Fly to

Heathrow

Route

Depart

Return

Price

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Wed 5/11

06:35-08:10

Nonstop1h 35m

London Heathrow

Thu 20/11

06:50-08:15

Nonstop1h 25m

£87

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 14/11

06:45-08:20

Nonstop1h 35m

London Heathrow

Fri 14/11

16:30-18:00

Nonstop1h 30m

£87

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 5/12

19:35-20:55

Nonstop1h 20m

London Heathrow

Sun 7/12

06:50-08:15

Nonstop1h 25m

£89

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Tue 10/2

17:15-18:35

Nonstop1h 20m

London Heathrow

Tue 17/2

06:15-07:40

Nonstop1h 25m

£89

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Wed 19/11

17:40-19:00

Nonstop1h 20m

London Heathrow

Wed 26/11

07:00-08:25

Nonstop1h 25m

£89

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Sat 14/2

06:35-08:10

Nonstop1h 35m

London Heathrow

Mon 2/3

07:00-08:25

Nonstop1h 25m

£89

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 21/11

06:45-08:20

Nonstop1h 35m

London Heathrow

Sun 23/11

06:50-08:15

Nonstop1h 25m

£90

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 5/12

06:45-08:20

Nonstop1h 35m

London Heathrow

Mon 8/12

07:00-08:25

Nonstop1h 25m

£90

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Thu 18/9

19:35-08:00

1 stop12h 25m

London Heathrow

Tue 23/9

06:15-19:05

1 stop12h 50m

£208

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Sat 11/10

12:35-21:25

1 stop8h 50m

London Heathrow

Thu 16/10

06:15-14:00

1 stop7h 45m

£211

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 35 results
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Best time to book a flight from Belfast to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Belfast 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 Belfast to London Heathrow Airport

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

Use this chart to determine the optimal time to book a return flight from Belfast to Heathrow. Price data was last updated on 22 August 2025.

To ensure you get the cheapest price possible for a flight from Belfast to London Heathrow Airport, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Belfast to London Heathrow Airport (average of £112). Flying from Belfast to London Heathrow Airport in August is currently the most expensive (average of £164). 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 BFS to LHR?

Find hourly flight availability from Belfast to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 August 2025.

It’s optimal to fly from Belfast to London Heathrow Airport in the evening. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight at midday.

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

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

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

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 29 August 2025.
Get a feel of what it's like to fly with easyJet and British Airways from Belfast to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,817 reviews
Check prices

Crew

7.6

Comfort

6.7

Overall

6.9

Food

5.9

Entertainment

5.5

Boarding

6.7

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
easyJet
6.9
Okay
1,817 reviews
easyJet
6.9
Okay
1,817 reviews
Check prices

Crew

7.6

Comfort

6.7

Overall

6.9

Food

5.9

Entertainment

5.5

Boarding

6.7

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
British Airways
6.7
Okay
7,320 reviews
easyJet
6.9
Okay
1,817 reviews
Check prices

Crew

7.6

Comfort

6.7

Overall

6.9

Food

5.9

Entertainment

5.5

Boarding

6.7

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!

Related info for your journey

Find useful and relevant information for your journey from Belfast to Heathrow. 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 Belfast to London Heathrow Airport?

    Departing from Belfast to London Heathrow Airport will take you 1h 35m. Airlines will cover a distance of 312 mi. All flights are typically direct.

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

    Flying on easyJet is currently your cheapest option to London Heathrow Airport, with prices starting at £29. Another option worth looking into is British Airways, starting at £74 return. easyJet is 75% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Belfast to London Heathrow Airport (average of £112). Flying from Belfast to London Heathrow Airport in August is currently the most expensive (average of £164). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

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 Belfast to Heathrow

Discover the top 3 airlines that operate flights from Belfast to Heathrow. 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 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£29Average£65FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£74Average£143FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£130Average£218FlexibilityNo 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 Belfast to Heathrow?

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 Heathrow from Belfast today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to Heathrow for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Heathrow from Belfast shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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