Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London to Belfast from $121

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 9/8. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London to Belfast

Cheap round-trip flights

Logo
6:15 am - 9:15 amLHR-BFS
3h 00m1 stop
Logo
4:40 pm - 9:50 pmBFS-LHR
5h 10m1 stop
$230
Find Deal
lun., oct. 13 - mar., oct. 14
Logo
9:55 pm - 8:40 amLHR-BFS
10h 45m1 stop
Logo
12:20 pm - 7:55 pmBFS-LHR
7h 35m1 stop
$247
Find Deal
dom., ago. 31 - jue., sep. 4
Logo
9:50 pm - 7:15 amLHR-BFS
9h 25m1 stop
Logo
5:45 pm - 9:50 pmBFS-LHR
4h 05m1 stop
$258
Find Deal
lun., ago. 11 - mié., ago. 13
Logo
10:10 pm - 8:00 amLHR-BFS
9h 50m1 stop
Logo
6:55 am - 5:55 pmBFS-LHR
11h 00m1 stop
$286
Find Deal
vie., ago. 29 - vie., sep. 5
Logo
6:15 am - 4:40 pmLHR-BFS
10h 25m1 stop
Logo
5:55 pm - 10:25 pmBFS-LHR
4h 30m1 stop
$306
Find Deal
jue., sep. 25 - dom., sep. 28
Logo
9:45 pm - 7:50 amLHR-BFS
10h 05m1 stop
Logo
2:55 pm - 8:50 pmBFS-LHR
5h 55m1 stop
$320
Find Deal
dom., sep. 14 - vie., sep. 19
Logo
6:45 am - 4:40 pmLHR-BFS
9h 55m1 stop
Logo
3:55 pm - 8:50 pmBFS-LHR
4h 55m1 stop
$322
Find Deal
vie., ago. 29 - dom., ago. 31
Logo
7:35 am - 4:10 pmLHR-BFS
8h 35m1 stop
Logo
7:00 am - 10:55 amBFS-LHR
3h 55m1 stop
$355
Find Deal
dom., sep. 7 - dom., sep. 14
Logo
10:00 pm - 7:50 amLHR-BFS
9h 50m1 stop
Logo
4:20 pm - 9:35 pmBFS-LHR
5h 15m1 stop
$364
Find Deal
jue., ago. 28 - vie., ago. 29
Logo
9:50 pm - 7:15 amLHR-BFS
9h 25m1 stop
Logo
12:20 pm - 4:30 pmBFS-LHR
4h 10m1 stop
$392
Find Deal
sáb., sep. 13 - sáb., sep. 20

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 julio 31, 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

lun. 10/13

6:15 am-9:15 am

1 stop3h 00m

Belfast Intl

mar. 10/14

4:40 pm-9:50 pm

1 stop5h 10m

$230

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

dom. 8/31

9:55 pm-8:40 am

1 stop10h 45m

Belfast Intl

jue. 9/4

12:20 pm-7:55 pm

1 stop7h 35m

$247

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

lun. 8/11

9:50 pm-7:15 am

1 stop9h 25m

Belfast Intl

mié. 8/13

5:45 pm-9:50 pm

1 stop4h 05m

$258

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

vie. 8/29

10:10 pm-8:00 am

1 stop9h 50m

Belfast Intl

vie. 9/5

6:55 am-5:55 pm

1 stop11h 00m

$286

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

jue. 9/25

6:15 am-4:40 pm

1 stop10h 25m

Belfast Intl

dom. 9/28

5:55 pm-10:25 pm

1 stop4h 30m

$306

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

dom. 9/14

9:45 pm-7:50 am

1 stop10h 05m

Belfast Intl

vie. 9/19

2:55 pm-8:50 pm

1 stop5h 55m

$320

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

vie. 8/29

6:45 am-4:40 pm

1 stop9h 55m

Belfast Intl

dom. 8/31

3:55 pm-8:50 pm

1 stop4h 55m

$322

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

dom. 9/7

7:35 am-4:10 pm

1 stop8h 35m

Belfast Intl

dom. 9/14

7:00 am-10:55 am

1 stop3h 55m

$355

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

jue. 8/28

10:00 pm-7:50 am

1 stop9h 50m

Belfast Intl

vie. 8/29

4:20 pm-9:35 pm

1 stop5h 15m

$364

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

sáb. 9/13

9:50 pm-7:15 am

1 stop9h 25m

Belfast Intl

sáb. 9/20

12:20 pm-4:30 pm

1 stop4h 10m

$392

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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 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 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 $72. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from London to Belfast Intl Airport for around $106.

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

In the morning is the cheapest time of day to fly from London to Belfast Intl Airport when you can find flight prices for as low as $123. Flying to Belfast Intl Airport in the morning 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 in the evening when prices are around $178.

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 $170 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 $117 on momondo.

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

There are 1 cabin classes 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 July 2025, prices for London to Belfast Intl Airport flights are approximately 100% 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

$121

Fastest flight time

3h 00m

Direct flights

None
The best one-way flight to Belfast Intl Airport from London in the past 72 hours is $121. The best round-trip flight deal from London to Belfast Intl Airport found on momondo in the last 72 hours is $230.
The fastest flight from London to Belfast Intl Airport takes 3h 00m
There are no direct flights from London to Belfast Intl Airport. Popular non-direct route for this connection is London Heathrow Airport - 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 3h 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
6.2
109 reviews
Search Ryanair flights
easyJetPriceFrom $39Free CancellationRating
6.9
1,822 reviews
Search easyJet flights
British AirwaysPriceFrom $111Free CancellationRating
6.6
7,222 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 27 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 (6.2/10, 109 ratings). Ryanair flies from London to Belfast Intl Airport around 4 times per week, with deals starting from $20 round-trip and rising to an average price of around $70.

Traveling to a place near Belfast?

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
mar. 8/5
mar. 8/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Belfast

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $348
Flights to London Gatwick Airportfrom $296
Flights to London City Airportfrom $471
Flights to London Stansted Airportfrom $417
Flights to London Luton Airportfrom $426
Flights to London Southend Airportfrom $518
Flights to Glasgow Intl Airportfrom $417
Flights to Belfast City Airportfrom $484