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Cheap flights from London Heathrow Airport to Belfast Intl Airport from £88

LHR — BFS
29 Nov — 6 Dec1
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

Wed 9/1219:25 -
1 stop12h 30m
Wed 16/1206:55 -
1 stop9h 40m
Deal found 25/10£190
Thu 26/1119:20 -
1 stop11h 35m
Thu 10/1214:30 -
1 stop6h 55m
Deal found 29/10£211
Tue 24/1106:20 -
1 stop5h 10m
Tue 1/1207:05 -
1 stop9h 30m
Deal found 27/10£218
Tue 24/1106:20 -
1 stop5h 10m
Tue 8/1207:05 -
1 stop9h 30m
Deal found 27/10£219
Tue 8/1206:20 -
1 stop5h 10m
Fri 11/1207:25 -
1 stop10h 55m
Deal found 29/10£225
Wed 25/1107:50 -
2 stops8h 20m
Wed 9/1206:55 -
1 stop7h 30m
Deal found 28/10£227
Thu 5/1106:20 -
1 stop12h 45m
Mon 9/1108:40 -
1 stop12h 45m
Deal found 28/10£229

Find flight deals from Heathrow to Belfast Intl

Round-trip from

£190

One-way from

£88

Popular in

October

Cheapest in

November

Average price

£198
9/12-16/12
  • 9/12-16/12
  • 2 total stops
  • 22h 10m total
  • London to Belfast
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14/12-31/12
  • 14/12-31/12
  • 1 total stop
  • 11h 45m total
  • London to Belfast
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
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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

Cheapest return flight

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Wed 18/11

10:55-20:55

2 stops10h 00m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£94

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Wed 25/11

17:45-06:55

2 stops13h 10m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£103

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Sun 6/12

09:55-20:45

2 stops34h 50m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£103

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Thu 17/12

15:15-07:00

1 stop15h 45m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£106

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Tue 1/12

09:55-22:20

2 stops12h 25m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£108
Fastest return journey

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Fri 11/12

07:00-12:45

1 stop5h 45m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£112

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Wed 9/12

08:55-07:55

1 stop23h 00m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£113

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Sat 14/11

16:15-07:25

2 stops15h 10m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£116

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Sun 29/11

15:15-08:10

1 stop16h 55m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£118

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Fri 19/2

06:30-13:40

1 stop7h 10m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£126

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 21 resultsSorted by cheapest first
1
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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

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 81 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 £127). Flying from London Heathrow Airport to Belfast Intl Airport in October is currently the most expensive (average of £198). 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?

Airfare is above average for this route at the moment.

London Heathrow Airport to Belfast Intl Airport flights typically cost between £106 and £137 in December.
The cheapest return price found within the last 5 days was £190 on Multiple Airlines (9 Dec–16 Dec).

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
1,922 reviews
Check prices

Comfort

6.8

Entertainment

5.5

Boarding

6.8

Overall

6.9

Food

6.0

Crew

7.7

Reviews

1 / 20
8.0
Excellent

Regina,Sept 2026

LGW - BOD

I didn’t have food or entertainment. Everything was greay
easyJet
6.9
Okay
1,922 reviews
easyJet
6.9
Okay
1,922 reviews
Check prices

Comfort

6.8

Entertainment

5.5

Boarding

6.8

Overall

6.9

Food

6.0

Crew

7.7

Reviews

1 / 20
8.0
Excellent

Regina,Sept 2026

LGW - BOD

I didn’t have food or entertainment. Everything was greay
British Airways
6.7
Okay
8,275 reviews
easyJet
6.9
Okay
1,922 reviews
Check prices

Comfort

6.8

Entertainment

5.5

Boarding

6.8

Overall

6.9

Food

6.0

Crew

7.7

Reviews

1 / 20
8.0
Excellent

Regina,Sept 2026

LGW - BOD

I didn’t have food or entertainment. Everything was greay

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 £40. Another airline that can offer you cheap pricing is British Airways. These flights start at 73% 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 £127). Flying from London Heathrow Airport to Belfast Intl Airport in October is currently the most expensive (average of £198). 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

Top 2 airlines flying from Heathrow to Belfast Intl

AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£40Average£97FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£97Average£146FlexibilityNo cancel feeOn-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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