Find flights
Deals
When to book
FAQs

Cheap flights from Northern Ireland to London from £27

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LON
23 Aug — 30 Aug1
1 adult

Cheap flight deals from Northern Ireland to London

Keep the following information in mind while searching for Northern Ireland to London flight deals. Data was last updated 18 August 2025.

Round-trip from

£54

One-way from

£27

Popular in

June

Cheapest in

January

Average price

£97

Good round-trip deal

£41 or less

Good one-way deal

£38 or less
easyJet
  • easyJet
  • 1/10-8/10
  • Nonstop
  • 2h 55m total
  • Northern Ireland to London
Search Deals
easyJet
  • easyJet
  • 4/9
  • Nonstop
  • 1h 10m total
  • Northern Ireland to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Northern Ireland to London (LON).
Search Deals
Price to beat on a one-way flight from Northern Ireland to London (LON).
Search Deals

Find flight deals from Northern Ireland to London

Cheapest flights from Northern Ireland to London
Explore the most affordable flight options available from Northern Ireland to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.

Wed 1/1021:05BFS - LGW
Nonstop1h 25measyJet
Wed 8/1006:00LGW - BFS
Nonstop1h 30measyJet
Deal found 17/8£54
Mon 15/922:00BFS - STN
1 stop10h 20measyJet
Sat 20/907:50STN - BFS
Nonstop1h 20measyJet
Deal found 16/8£54
Sat 13/915:35BFS - LTN
Nonstop1h 10measyJet
Tue 23/919:20LTN - BFS
Nonstop1h 15measyJet
Deal found 17/8£55
Tue 30/920:55BFS - LGW
Nonstop1h 30measyJet
Tue 7/1014:20LGW - BFS
Nonstop1h 30measyJet
Deal found 16/8£55
Wed 10/920:10BFS - LTN
Nonstop1h 10measyJet
Sun 14/908:40LTN - BFS
Nonstop1h 20measyJet
Deal found 16/8£55
Thu 13/1119:50BHD - LTN
Nonstop1h 10measyJet
Sun 16/1112:50LTN - BHD
Nonstop1h 15measyJet
Deal found 16/8£55
Tue 30/920:55BFS - LGW
Nonstop1h 30measyJet
Sat 11/1007:30LGW - BFS
Nonstop1h 30measyJet
Deal found 16/8£55
Sat 18/1014:20BHD - LGW
Nonstop1h 30measyJet
Sun 19/1012:10LGW - BHD
Nonstop1h 35measyJet
Deal found 15/8£55
Sun 21/1205:45BFS - STN
Nonstop1h 20mRyanair
Tue 23/1207:45STN - BFS
Nonstop1h 20mRyanair
Deal found 17/8£55
Fri 19/920:15BFS - LTN
Nonstop1h 10measyJet
Sat 27/907:05LTN - BFS
Nonstop1h 20measyJet
Deal found 16/8£56
Sun 16/1120:45BFS - LGW
Nonstop1h 25measyJet
Mon 15/1218:40LGW - BFS
Nonstop1h 30measyJet
Deal found 16/8£56
Mon 15/921:35BFS - LTN
1 stop10h 15measyJet
Sat 20/907:05LTN - BFS
Nonstop1h 20measyJet
Deal found 16/8£57

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to London 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, Cheapflights users made 858,174 searches. Data last updated 18 August 2025.
Use the filters below to find and compare flights from Northern Ireland to London that are best for you.

Fly from

Northern Ireland

Fly to

London

Route

Depart

Return

Price

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Fri 17/10

06:05-07:35

Nonstop1h 30m

London Gatwick

Sun 19/10

07:55-09:25

Nonstop1h 30m

£54

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Wed 1/10

21:05-22:30

Nonstop1h 25m

London Gatwick

Wed 8/10

06:00-07:30

Nonstop1h 30m

£54

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Sun 28/9

22:40-07:25

1 stop8h 45m

London Stansted

Tue 30/9

08:35-09:55

Nonstop1h 20m

£54

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Mon 15/9

22:00-08:20

1 stop10h 20m

London Stansted

Sat 20/9

07:50-09:10

Nonstop1h 20m

£54

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Sat 25/10

15:35-16:45

Nonstop1h 10m

London Luton

Sun 26/10

07:05-08:25

Nonstop1h 20m

£55

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Wed 17/9

14:10-19:20

1 stop5h 10m

London Luton

Wed 17/9

22:05-23:20

Nonstop1h 15m

£55

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Sat 13/9

15:35-16:45

Nonstop1h 10m

London Luton

Tue 23/9

19:20-20:35

Nonstop1h 15m

£55

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Sat 20/12

08:50-10:00

Nonstop1h 10m

London Luton

Fri 26/12

07:00-08:20

Nonstop1h 20m

£55

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Mon 3/11

06:40-07:50

Nonstop1h 10m

London Luton

Wed 5/11

08:45-16:30

1 stop7h 45m

£55

BelfastLondon

BFS - LGW

BFSLGW

Belfast Intl

Thu 23/10

21:10-22:45

Nonstop1h 35m

London Gatwick

Sun 26/10

16:10-17:40

Nonstop1h 30m

£55

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Northern Ireland to London

Have a flexible travel schedule? Discover the best time to fly to London from Northern Ireland with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to London

What is the cheapest month to book a flight from Northern Ireland to London?

Currently, January is the cheapest month in which you can book a flight from Northern Ireland to London (average of £112). Flying from Northern Ireland to London in August is currently the most expensive (average of £164). 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.

What is the cheapest time of day to fly from NIR to LON?

Find hourly flight availability from Northern Ireland to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to London as you normally would.

Weekly flight availability from Northern Ireland to London

Explore weekly flight availability from Northern Ireland to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 August 2025.

The most flights from GBNIR to LON are scheduled on a Monday (12 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost for a return flight from Northern Ireland to London?

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from Northern Ireland to London?

    Most travelers choose Belfast Intl - London Gatwick, Belfast Intl - London Stansted or Belfast Intl - London Luton when deciding on the best route from Northern Ireland to London.

  • Can I find deals for flights from Northern Ireland to London that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to London.

  • Can I find deals for business class flights from Northern Ireland to London?

    Yes. Cheapflights offers flight deals from Northern Ireland to London 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 Northern Ireland to London?

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to London (average of £112). Flying from Northern Ireland to London in August is currently the most expensive (average of £164). 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 London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Deal
Luton
Wembley
Crawley
Ilford
Hayes
Ipswich
Southend-on-Sea
Winchester
Folkestone
Eastbourne
Maidstone
Watford
Chichester
Dartford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Northern Ireland to London

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Edinburgh flights
Heathrow to Edinburgh flights
Stansted to Edinburgh flights
Luton to Edinburgh flights
London City to Edinburgh flights
Belfast Intl to Gatwick flights
Belfast Intl to Stansted flights
Belfast Intl to Bristol flights
Belfast Intl to Luton flights
Edinburgh to Heathrow flights
Edinburgh to Gatwick flights
Edinburgh to Luton flights
Edinburgh to Stansted flights
Birmingham to Edinburgh flights
Gatwick to Newquay flights
Glasgow Intl to Heathrow flights
Belfast Intl to Edinburgh flights
Edinburgh to London City flights
Glasgow Intl to Luton flights
Glasgow Intl to Stansted flights
Glasgow Intl to London City flights
Belfast City to Heathrow flights
Glasgow Intl to Gatwick flights
Bristol to Edinburgh flights
Southampton to Edinburgh flights
Belfast City to Gatwick flights
Gatwick to Manchester flights
Aberdeen to Heathrow flights
Belfast Intl to Heathrow flights
London City to Manchester flights
Heathrow to Newcastle upon Tyne flights
Heathrow to Newquay flights
Southend to Newquay flights
Heathrow to Manchester flights
Aberdeen to Gatwick flights
London City to Newquay flights
Belfast City to Edinburgh flights
Belfast City to Bristol flights
Manchester to Heathrow flights
Belfast Intl to London City flights
Aberdeen to London City flights
Aberdeen to Luton flights
Belfast City to London City flights
Stansted to Manchester flights
Gatwick to Newcastle upon Tyne flights
Luton to Manchester flights
Luton to Newquay flights
Stansted to Newquay flights
Newquay to Gatwick flights
Belfast Intl to Manchester flights

Top 6 airlines flying from Northern Ireland to London

Discover the top 6 airlines that operate flights from Northern Ireland to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 August 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£29Average£52FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£29Average£83FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£47Average£78FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£74Average£154FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£129Average£218FlexibilityNo cancel feeOn-time79%
Search Loganair flights
Aer LingusCheapest£171Average£221FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Northern Ireland to London?

Cheapflights helps you search for flights from Northern Ireland to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Northern Ireland to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Northern Ireland to London with no change fees?

Certainly. Search results for flights to London from Northern Ireland 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 Northern Ireland to London become cheaper?

Not ready to book yet? You can track prices for flights from Northern Ireland to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.