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Cheap flights from London to Belfast from $100

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 6/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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
9:30 am - 8:25 pm
LHR
-
BFS
10h 55m
2 stops
Multiple Airlines Logo
9:05 pm - 12:40 pm
BFS
-
LHR
15h 35m
2 stops
$455Multiple Airlines
Wed, Jul 1 - Thu, Jul 16
Multiple Airlines Logo
12:00 pm - 7:20 pm
LHR
-
BFS
7h 20m
2 stops
Multiple Airlines Logo
9:05 am - 7:30 pm
BFS
-
LHR
10h 25m
1 stop
$526Multiple Airlines
Tue, Jun 16 - Fri, Jun 19
Multiple Airlines Logo
9:30 am - 11:50 pm
LHR
-
BFS
14h 20m
2 stops
Multiple Airlines Logo
4:25 pm - 11:20 am
BFS
-
LHR
18h 55m
2 stops
$533Multiple Airlines
Wed, Aug 19 - Fri, Aug 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 June 6, 2026.
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

Cheapest round-trip

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 7/1

9:30 am-8:25 pm

2 stops10h 55m

Belfast Intl

Thu 7/16

9:05 pm-12:40 pm

2 stops15h 35m

$455
Quickest round-trip

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 6/16

12:00 pm-7:20 pm

2 stops7h 20m

Belfast Intl

Fri 6/19

9:05 am-7:30 pm

1 stop10h 25m

$526

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 8/19

9:30 am-11:50 pm

2 stops14h 20m

Belfast Intl

Fri 8/28

4:25 pm-11:20 am

2 stops18h 55m

$533
Cheapest one-way

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 6/25

3:00 pm-3:05 pm

1 stop24h 05m

$100

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 6/25

3:00 pm-3:05 pm

1 stop24h 05m

$101

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 6/15

3:30 pm-9:20 am

2 stops17h 50m

$118

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 9/9

8:50 pm-9:45 am

1 stop12h 55m

$128

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 6/15

3:30 pm-9:20 am

2 stops17h 50m

$133

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 7/15

9:55 am-10:30 pm

2 stops12h 35m

$138

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 7/2

9:55 am-10:20 pm

2 stops12h 25m

$143

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
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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 typical price of a round-trip flight between London and Belfast Intl Airport?

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

The month of November is, on average, the cheapest month to fly to Belfast Intl Airport from London, with most prices found around $95. If you’re not able to fly to Belfast Intl Airport in November, then September is your next best option. Flight prices from London to Belfast Intl Airport during September average around $118.

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 Monday when prices can be found for as low as $73. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London to Belfast Intl Airport for around $159.

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 $141. 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 $209.

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 from London 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 $190 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 $136 on momondo.

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

There is only 1 cabin class available to choose from on London to Belfast Intl Airport 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 June 2026, prices for London to Belfast Intl Airport flights are approximately 28% 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

$23

Fastest flight time

1h 20m

Direct flights

None
The best one-way flight to Belfast Intl Airport from London in the past 72 hours is $23. The best round-trip flight deal from London to Belfast Intl Airport found on momondo in the last 72 hours is $86.
The fastest flight from London to Belfast Intl Airport takes 1h 20m
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

Frequently asked questions about flying from London to Belfast Intl Airport

  • 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 1h 20m, 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
easyJetPriceFrom $20Free CancellationRating
6.9
1,903 reviews
Search easyJet flights
RyanairPriceFrom $43Free CancellationRating
6.5
130 reviews
Search Ryanair flights
British AirwaysPriceFrom $125Free CancellationRating
6.7
8,028 reviews
Search British Airways flights

  • easyJet Flights From London to Belfast Intl Airport

    easyJet flight deals from London to Belfast Intl Airport start from $20 round-trip. Over the 33 easyJet flights for this route in a normal week, average airfare is usually $94 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 (6.5/10, 130 ratings). Ryanair flies from London to Belfast Intl Airport around 8 times per week, with deals starting from $43 round-trip and rising to an average price of around $85.

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Armagh
Ballymena
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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