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Cheap flights from London Heathrow Airport to Belfast Intl Airport from C$ 174

LHR — BFS
26 Oct — 2 Nov1
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

Tue 8/129:50 a.m. -
2 stops8h 55m
Mon 14/121:00 p.m. -
1 stop8h 40m
Deal found 24/9C$ 876

Find flight deals from Heathrow to Belfast Intl

Round-trip from

C$ 876

One-way from

C$ 174

Popular in

September

Cheapest in

November

Average price

C$ 354
8/12-14/12
  • 8/12-14/12
  • 3 total stops
  • 17h 35m total
  • London to Belfast
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21/11-31/12
  • 21/11-31/12
  • 2 total stops
  • 15h 10m total
  • London to Belfast
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Highest demand for flights based on searches. 9% potential increase in price (C$ 44 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
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Average for round-trip flights in September 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 round-trip

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Sat 21/11

4:15 p.m.-7:25 a.m.

2 stops15h 10m

Belfast Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 174
Quickest round-trip

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Thu 5/11

10:55 a.m.-5:30 p.m.

2 stops6h 35m

Belfast Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 182

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Fri 6/11

6:50 p.m.-9:05 a.m.

2 stops14h 15m

Belfast Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 225

LondonBelfast

LHR London Heathrow - BFS Belfast Intl

LHRBFS

London Heathrow

Tue 8/12

9:50 a.m.-6:45 p.m.

2 stops8h 55m

Belfast Intl

Mon 14/12

1:00 p.m.-9:40 p.m.

1 stop8h 40m

C$ 876

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/9

Sorted by cheapest first

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 round-trip 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?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Belfast Intl Airport, you should look to book at least 81 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 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 C$ 228). Flying from London Heathrow Airport to Belfast Intl Airport in September is currently the most expensive (average of C$ 354). 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 to fly round-trip 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 C$ 219 and C$ 482 in December.
The cheapest round-trip price found within the last 5 days was C$ 876 on Multiple Airlines (8 Dec-14 Dec).

Related info for your journey

  • 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 vacation 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 C$ 228). Flying from London Heathrow Airport to Belfast Intl Airport in September is currently the most expensive (average of C$ 354). 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?

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Armagh

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How does Cheapflights help users find flights from Heathrow to Belfast Intl?

When you search for this flight from Heathrow to Belfast Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast Intl from Heathrow.

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

Certainly. Search results for flights to Belfast Intl from Heathrow 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 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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