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Cheap flights from London to Belfast from $147

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Belfast departing on 1/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:20 pm - 5:00 pmLHR-BFS
22h 40m2 stops
Multiple Airlines Logo
7:30 am - 10:00 pmBFS-LHR
14h 30m2 stops
$371Multiple Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Multiple Airlines Logo
7:50 am - 4:35 pmLHR-BFS
8h 45m2 stops
Multiple Airlines Logo
7:55 pm - 1:25 pmBFS-LHR
17h 30m2 stops
$572Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 11
Multiple Airlines Logo
7:00 am - 12:45 pmLHR-BFS
5h 45m1 stop
Multiple Airlines Logo
1:55 pm - 9:05 pmBFS-LHR
7h 10m2 stops
$606Multiple Airlines
Find Deal
Sun, Dec 14 - Tue, Dec 16
Multiple Airlines Logo
11:10 am - 8:00 pmLHR-BFS
8h 50m2 stops
Multiple Airlines Logo
7:10 am - 3:50 pmBFS-LHR
8h 40m1 stop
$702Multiple Airlines
Find Deal
Sat, Dec 20 - Sat, Dec 27
Multiple Airlines Logo
6:50 am - 1:10 pmLHR-BFS
6h 20m2 stops
Multiple Airlines Logo
4:25 pm - 3:35 pmBFS-LHR
23h 10m2 stops
$748Multiple Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 10
Multiple Airlines Logo
2:25 pm - 7:25 pmLHR-BFS
5h 00m1 stop
Multiple Airlines Logo
2:05 pm - 9:25 pmBFS-LHR
7h 20m1 stop
$1,412Multiple Airlines
Find Deal
Sat, Dec 20 - Sat, Dec 27
Multiple Airlines Logo
2:25 pm - 10:20 pmLHR-BFS
7h 55m1 stop
Multiple Airlines Logo
7:25 am - 1:40 pmBFS-LHR
6h 15m1 stop
$1,490Multiple Airlines
Find Deal
Sun, Dec 21 - Sun, Dec 28

momondo Fare Finder

 
Customize your flight search to find flights from London to Belfast Intl Airport 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from London to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 12/4

6:20 pm-5:00 pm

2 stops22h 40m

Belfast Intl

Thu 12/11

7:30 am-10:00 pm

2 stops14h 30m

$371

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 11/11

7:50 am-4:35 pm

2 stops8h 45m

Belfast Intl

Tue 11/11

7:55 pm-1:25 pm

2 stops17h 30m

$572

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 12/14

7:00 am-12:45 pm

1 stop5h 45m

Belfast Intl

Tue 12/16

1:55 pm-9:05 pm

2 stops7h 10m

$606

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 12/20

11:10 am-8:00 pm

2 stops8h 50m

Belfast Intl

Sat 12/27

7:10 am-3:50 pm

1 stop8h 40m

$702

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 11/10

6:50 am-1:10 pm

2 stops6h 20m

Belfast Intl

Mon 11/10

4:25 pm-3:35 pm

2 stops23h 10m

$748

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 12/20

2:25 pm-7:25 pm

1 stop5h 00m

Belfast Intl

Sat 12/27

2:05 pm-9:25 pm

1 stop7h 20m

$1,412

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 12/21

2:25 pm-10:20 pm

1 stop7h 55m

Belfast Intl

Sun 12/28

7:25 am-1:40 pm

1 stop6h 15m

$1,490

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 1/24

10:55 am-8:00 pm

2 stops9h 05m

$147

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 2/4

11:25 am-8:15 pm

2 stops8h 50m

$161

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 11/17

10:55 am-8:15 pm

2 stops9h 20m

$177

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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2

See travel insights to Belfast from

How to get the cheapest flight ticket from London to Belfast Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Belfast Intl Airport?

The month of January is, on average, the cheapest month to fly to Belfast Intl Airport from London, with most prices found around $51. If you’re not able to fly to Belfast Intl Airport in January, then March is your next best option. Flight prices from London to Belfast Intl Airport during March average around $61.

What is the cheapest day to depart on your flight to Belfast Intl Airport?

The cheapest day to depart on your flight to Belfast Intl Airport is on a Wednesday when prices can be found for as low as $77. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from London to Belfast Intl Airport for around $118.

What is the cheapest time of day to depart on your flight to Belfast Intl Airport?

In the evening is the cheapest time of day to fly from London to Belfast Intl Airport when you can find flight prices for as low as $107. Flying to Belfast Intl Airport in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Belfast Intl Airport is at noon when prices are around $187.

What is the cheapest London to Belfast Intl flight route?

Fly from London Stansted to Belfast Intl for the best London - Belfast Intl flight prices

How far in advance should I book a flight to Belfast Intl Airport?

You are more likely to see cheaper flights to Belfast Intl Airport from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast Intl Airport for around $176 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast Intl Airport from London for as low as $131 on momondo.

What cabin class options are available on London to Belfast Intl flights?

There is only 1 cabin class available to choose from on London to Belfast Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London to Belfast Intl Airport flight prices changed over time?

As of November 2025, prices for London to Belfast Intl Airport flights are approximately 47% more expensive when compared to flights at the same time last year.

When to book flights from London to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London to Belfast Intl Airport (LON to BFS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Belfast Intl Airport

Best Price Found

$35

Direct flights

None
The best one-way flight to Belfast Intl Airport from London in the past 72 hours is $35. The best round-trip flight deal from London to Belfast Intl Airport found on momondo in the last 72 hours is $43.
There are no direct flights from London to Belfast Intl Airport. There are no popular flight routes from London to Belfast Intl Airport.
Search flight deals

  • How far is London to Belfast Intl by plane?

    A flight from London to Belfast Intl will travel around 333.5 mi. Flights usually cover this in 5h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London to Belfast Intl Airport?

    Prices for flights from London to Belfast Intl Airport are updated daily.

  • How many operators does momondo search for flights from London to Belfast Intl Airport?

  • How old do you have to be to fly from London to Belfast Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The travel and health documents required for your trip to Belfast Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Belfast Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from London to Belfast Intl Airport?

  • What is the most popular airline from London to Belfast Intl Airport?

Best airlines flying from London to Belfast Intl Airport

Compare and see reviews for airlines that fly from London to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom $20Free CancellationRating
6.3
115 reviews
Search Ryanair flights
easyJetPriceFrom $39Free CancellationRating
6.9
1,841 reviews
Search easyJet flights
British AirwaysPriceFrom $111Free CancellationRating
6.7
7,500 reviews
Search British Airways flights

  • easyJet Flights From London to Belfast Intl Airport

    easyJet flight deals from London to Belfast Intl Airport start from $39 round-trip. Over the 35 easyJet flights for this route in a normal week, average airfare is usually $91 round-trip - but some users have found much cheaper deals with momondo.

  • Ryanair Flights From London to Belfast Intl Airport

    Another popular option for London to Belfast Intl Airport flights is Ryanair (6.3/10, 115 ratings). Ryanair flies from London to Belfast Intl Airport around 3 times per week, with deals starting from $20 round-trip and rising to an average price of around $84.

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Armagh
Cookstown
Newry
Dungannon

Why use momondo?

Why should I use momondo to find a flight deal from London to Belfast?

It is quick and easy to find London to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

Can I find flights from London to Belfast with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Belfast flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Belfast?

momondo provides multiple filters to help you find the best flight to Belfast from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

An easier way to manage your Belfast Intl Airport trip

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