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 75% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Belfast Intl Airport ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast Intl Airport when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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.

£116+ Cheap Flights from London Heathrow Airport to Belfast Intl Airport

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

Airfare is above average for this route at the moment. London Heathrow Airport to Belfast Intl Airport flights typically cost between £95 and £191 in November. The cheapest return flight price found within the last 3 days was £197 on Multiple Airlines (20 Nov-26 Nov).

Cheapflights Tip: The best prices from London Heathrow to Belfast Intl 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 Intl

Round-trip from	£197
One-way from	£116
Popular in	July
Cheapest in	January
Average price	£136

20/11-26/11
2 total stops
20h 45m total
London to Belfast

Search Deals

26/12
2 total stops
22h 30m total
London to Belfast

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 October 2025

Search Deals

Find 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 2 October 2025.

Thu 20/1106:50LHR - BFS

1 stop8h 40mMultiple Airlines

Wed 26/1121:05BFS - LHR

1 stop12h 05mMultiple Airlines

Deal found 30/9£197

Sat 15/1118:30LHR - BFS

2 stops18h 40mMultiple Airlines

Sat 22/1107:10BFS - LHR

2 stops14h 25mMultiple Airlines

Deal found 1/10£235

Fri 14/1114:45LHR - BFS

1 stop7h 20mMultiple Airlines

Fri 21/1114:20BFS - LHR

1 stop7h 05mMultiple Airlines

Deal found 30/9£249

Tue 21/1015:10LHR - BFS

2 stops7h 45mMultiple Airlines

Tue 18/1117:30BFS - LHR

1 stop14h 25mMultiple Airlines

Deal found 1/10£255

Sun 26/1006:30LHR - BFS

2 stops14h 15mMultiple Airlines

Thu 30/1007:30BFS - LHR

2 stops9h 50mMultiple Airlines

Deal found 1/10£258

Tue 7/1008:00LHR - BFS

2 stops26h 05mMultiple Airlines

Wed 8/1012:15BFS - LHR

2 stops10h 40mMultiple Airlines

Deal found 1/10£263

Sat 13/1209:55LHR - BFS

2 stops13h 55mMultiple Airlines

Sun 14/1208:15BFS - LHR

2 stops24h 55mMultiple Airlines

Deal found 30/9£266

Tue 14/1013:45LHR - BFS

2 stops22h 05mMultiple Airlines

Thu 16/1016:45BFS - LHR

2 stops20h 00mMultiple Airlines

Deal found 30/9£270

Thu 6/1109:00LHR - BFS

1 stop5h 15mMultiple Airlines

Mon 10/1108:40BFS - LHR

1 stop7h 55mMultiple Airlines

Deal found 30/9£272

Best flights from Heathrow to Belfast Intl
Discover carefully curated flight deals from Heathrow to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 October 2025.

Thu 20/1106:50LHR - BFS

1 stop8h 40mMultiple Airlines

Wed 26/1121:05BFS - LHR

1 stop12h 05mMultiple Airlines

Deal found 30/9£197

Sat 15/1107:45LHR - BFS

1 stop11h 10mMultiple Airlines

Sat 22/1107:20BFS - LHR

2 stops12h 45mMultiple Airlines

Deal found 1/10£248

Fri 14/1114:45LHR - BFS

1 stop7h 20mMultiple Airlines

Fri 21/1114:20BFS - LHR

1 stop7h 05mMultiple Airlines

Deal found 30/9£249

Tue 21/1015:10LHR - BFS

2 stops7h 45mMultiple Airlines

Tue 18/1117:30BFS - LHR

1 stop14h 25mMultiple Airlines

Deal found 1/10£255

Sun 26/1006:30LHR - BFS

2 stops14h 15mMultiple Airlines

Thu 30/1007:30BFS - LHR

2 stops9h 50mMultiple Airlines

Deal found 1/10£258

Thu 6/1109:00LHR - BFS

1 stop5h 15mMultiple Airlines

Mon 10/1108:40BFS - LHR

1 stop7h 55mMultiple Airlines

Deal found 1/10£263

Tue 14/1013:45LHR - BFS

2 stops22h 05mMultiple Airlines

Thu 16/1016:45BFS - LHR

2 stops20h 00mMultiple Airlines

Deal found 30/9£270

Sun 26/1019:20LHR - BFS

1 stop12h 50mMultiple Airlines

Fri 31/1017:30BFS - LHR

1 stop14h 25mMultiple Airlines

Deal found 1/10£275

Last-minute flights from Heathrow to Belfast Intl
Discover last-minute flight deals from Heathrow to Belfast Intl. Data last updated 2 October 2025 and is based on user searches.

Tue 7/1008:00LHR - BFS

2 stops26h 05mMultiple Airlines

Wed 8/1012:15BFS - LHR

2 stops10h 40mMultiple Airlines

Deal found 1/10£263

Tue 14/1013:45LHR - BFS

2 stops22h 05mMultiple Airlines

Thu 16/1016:45BFS - LHR

2 stops20h 00mMultiple Airlines

Deal found 30/9£270

Tue 21/1015:10LHR - BFS

2 stops7h 45mMultiple Airlines

Tue 18/1117:30BFS - LHR

1 stop14h 25mMultiple Airlines

Deal found 1/10£255

Sun 26/1006:30LHR - BFS

2 stops14h 15mMultiple Airlines

Thu 30/1007:30BFS - LHR

2 stops9h 50mMultiple Airlines

Deal found 1/10£258

Thu 6/1109:00LHR - BFS

1 stop5h 15mMultiple Airlines

Mon 10/1108:40BFS - LHR

1 stop7h 55mMultiple Airlines

Deal found 30/9£272

Wed 12/1107:50LHR - BFS

2 stops8h 10mMultiple Airlines

Wed 12/1120:55BFS - LHR

2 stops17h 30mMultiple Airlines

Deal found 1/10£274

Fri 14/1114:45LHR - BFS

1 stop7h 20mMultiple Airlines

Fri 21/1114:20BFS - LHR

1 stop7h 05mMultiple Airlines

Deal found 30/9£249

Sat 15/1118:30LHR - BFS

2 stops18h 40mMultiple Airlines

Sat 22/1107:10BFS - LHR

2 stops14h 25mMultiple Airlines

Deal found 1/10£235

Thu 20/1106:50LHR - BFS

1 stop8h 40mMultiple Airlines

Wed 26/1121:05BFS - LHR

1 stop12h 05mMultiple Airlines

Deal found 30/9£197

One-way flights from Heathrow to Belfast Intl
Search for one-way flight options from Heathrow to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 2 October 2025.

Fri 26/1209:55LHR - BFS

2 stops22h 30mMultiple Airlines

Deal found 1/10£116

Sun 15/307:00LHR - BFS

1 stop5h 45mMultiple Airlines

Deal found 30/9£118

Mon 27/1020:50LHR - BFS

2 stops23h 40mMultiple Airlines

Deal found 1/10£127

Fri 31/1009:50LHR - BFS

2 stops10h 35mMultiple Airlines

Deal found 30/9£128

Mon 13/1015:10LHR - BFS

2 stops7h 10mMultiple Airlines

Deal found 1/10£129

Wed 8/1020:50LHR - BFS

2 stops12h 20mMultiple Airlines

Deal found 30/9£130

Mon 17/1112:10LHR - BFS

2 stops6h 45mMultiple Airlines

Deal found 30/9£131

Fri 12/1215:10LHR - BFS

2 stops8h 35mMultiple Airlines

Deal found 30/9£132

Fri 5/1214:45LHR - BFS

1 stop7h 20mMultiple Airlines

Deal found 30/9£133

Wed 22/1015:50LHR - BFS

2 stops6h 55mMultiple Airlines

Deal found 1/10£142

Tue 11/1114:15LHR - BFS

2 stops8h 20mMultiple Airlines

Deal found 1/10£143

Cheapflights Fare Finder

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

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 20/11

06:50-15:30

1 stop8h 40m

Belfast Intl

Wed 26/11

21:05-09:10

1 stop12h 05m

£197

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 15/11

07:45-18:55

1 stop11h 10m

Belfast Intl

Sat 22/11

07:20-20:05

2 stops12h 45m

£248

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 14/11

14:45-22:05

1 stop7h 20m

Belfast Intl

Fri 21/11

14:20-21:25

1 stop7h 05m

£249

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 21/10

15:10-22:55

2 stops7h 45m

Belfast Intl

Tue 18/11

17:30-07:55

1 stop14h 25m

£255

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 26/10

06:30-20:45

2 stops14h 15m

Belfast Intl

Thu 30/10

07:30-17:20

2 stops9h 50m

£258

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 6/11

09:00-14:15

1 stop5h 15m

Belfast Intl

Mon 10/11

08:40-16:35

1 stop7h 55m

£263

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 14/10

13:45-11:50

2 stops22h 05m

Belfast Intl

Thu 16/10

16:45-12:45

2 stops20h 00m

£270

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 26/10

19:20-08:10

1 stop12h 50m

Belfast Intl

Fri 31/10

17:30-07:55

1 stop14h 25m

£275

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 15/3

18:50-22:25

2 stops27h 35m

£116

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 26/12

09:55-08:25

2 stops22h 30m

£116

Flights are sorted by cheapest return flights first.

Deals found on 30/9

Showing 1-10 of 18 results

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 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 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 £67). Flying from London Heathrow Airport to Belfast Intl Airport 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?

One of the essential ways to save on airfare from London Heathrow Airport to Belfast Intl Airport 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 Intl Airport?

Travellers seeking maximum savings on their London Heathrow Airport to Belfast Intl Airport 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 Intl Airport?

Reviews of airlines servicing Belfast Intl

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

1,830 reviews

Check prices

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

1,830 reviews

easyJet

6.9

Okay

1,830 reviews

Check prices

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

7,413 reviews

easyJet

6.9

Okay

1,830 reviews

Check prices

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

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 75% 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 £67). Flying from London Heathrow Airport to Belfast Intl Airport 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

Armagh

Newry

Ballymena

Cookstown

Dungannon

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Top 2 airlines flying from Heathrow to Belfast Intl

Airline	Cheapest	Average	Flexibility	On-time
easyJet	Cheapest£32	Average£73	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
British Airways	Cheapest£79	Average£129	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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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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.

Cheap flights from London Heathrow Airport to Belfast Intl Airport from £116

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 26/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Belfast Intl 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 Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Belfast Intl

Cheapest flights from Heathrow to Belfast IntlExplore 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 2 October 2025.

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 2 October 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Belfast Intl Airport that are best for you.

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.

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?

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

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

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

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

Reviews of airlines servicing Belfast Intl

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.

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?

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

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

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

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

Travelling to a place near Belfast Intl Airport?

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 Heathrow to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Heathrow to Belfast Intl

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?

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

Can Cheapflights 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?

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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 2 October 2025.