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Cheap flights from London Heathrow Airport to Northern Ireland from £44

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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BFS
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Northern Ireland
Explore the most affordable flight options available from Heathrow to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 August 2026.

Sat 10/1007:30 -
Nonstop1h 20m
Wed 14/1018:20 -
Nonstop1h 20m
Deal found 6/8£78
Sat 10/1016:45 -
Nonstop1h 25m
Fri 16/1020:10 -
Nonstop1h 15m
Deal found 6/8£79
Sun 11/1008:45 -
Nonstop1h 20m
Sun 11/1019:10 -
Nonstop1h 15m
Deal found 6/8£82
Sun 11/1008:45 -
Nonstop1h 20m
Thu 15/1020:35 -
Nonstop1h 15m
Deal found 6/8£83
Mon 12/1016:15 -
Nonstop1h 25m
Thu 15/1006:30 -
Nonstop1h 25m
Deal found 6/8£84
Sun 11/1016:50 -
Nonstop1h 25m
Tue 13/1020:25 -
Nonstop1h 15m
Deal found 6/8£84
Fri 16/1008:50 -
Nonstop1h 20m
Fri 16/1016:25 -
Nonstop1h 20m
Deal found 6/8£90
Thu 3/907:30 -
Nonstop1h 20m
Mon 7/919:35 -
Nonstop1h 15m
Deal found 5/8£101
Wed 7/1018:20 -
Nonstop1h 20m
Wed 14/1018:20 -
Nonstop1h 20m
Deal found 8/8£103
Wed 26/818:20 -
Nonstop1h 20m
Wed 2/919:40 -
Nonstop1h 15m
Deal found 6/8£104
Tue 25/817:20 -
Nonstop1h 25m
Wed 2/919:40 -
Nonstop1h 15m
Deal found 10/8£105
Wed 26/817:30 -
Nonstop1h 25m
Thu 3/906:30 -
Nonstop1h 25m
Deal found 10/8£106

Find flight deals from Heathrow to Northern Ireland

Keep the following information in mind while searching for Heathrow to Northern Ireland flight deals. Data was last updated 10 August 2026.

Round-trip from

£78

One-way from

£44

Popular in

July

Cheapest in

January

Average price

£104

Good round-trip deal

£126 or less

Good one-way deal

£75 or less
British Airways
  • British Airways
  • 10/10-14/10
  • Nonstop
  • 2h 40m total
  • London to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 25/9
  • Nonstop
  • 1h 20m total
  • London to Northern Ireland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Northern Ireland.
Search Deals
Price to beat on a one-way flight from London Heathrow to Northern Ireland.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Northern Ireland 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 10 August 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Wed 9/9

18:20-19:40

Nonstop1h 20m

Belfast City

Wed 16/9

20:35-21:50

Nonstop1h 15m

£107

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Fri 4/9

07:25-08:45

Nonstop1h 20m

Belfast City

Fri 18/9

20:10-21:25

Nonstop1h 15m

£110

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Tue 1/9

18:05-19:25

Nonstop1h 20m

Belfast City

Mon 7/9

19:35-20:50

Nonstop1h 15m

£110

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Tue 15/9

16:05-17:30

Nonstop1h 25m

Belfast City

Tue 15/9

20:25-21:40

Nonstop1h 15m

£113

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Sat 26/9

07:30-08:50

Nonstop1h 20m

Belfast City

Sun 27/9

06:30-07:55

Nonstop1h 25m

£113

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Tue 15/12

12:50-14:15

Nonstop1h 25m

Belfast City

Thu 17/12

20:00-21:20

Nonstop1h 20m

£113

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Tue 29/9

07:30-08:50

Nonstop1h 20m

Belfast City

Thu 1/10

09:35-11:00

Nonstop1h 25m

£122

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Sat 12/9

07:30-08:50

Nonstop1h 20m

Belfast City

Mon 14/9

19:35-20:50

Nonstop1h 15m

£179

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Fri 28/8

07:25-08:45

Nonstop1h 20m

Belfast City

Mon 31/8

06:30-07:55

Nonstop1h 25m

£186

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Tue 8/9

06:30-16:55

1 stop10h 25m

Belfast City

Tue 15/9

09:50-20:55

1 stop11h 05m

£187

Flights are sorted by cheapest return flights first.

Deals found on 5/8

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from Heathrow to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Heathrow 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 London Heathrow Airport to Northern Ireland

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

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Northern Ireland (average of £121). Flying from London Heathrow Airport to Northern Ireland in June is currently the most expensive (average of £180). 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 LHR to NIR?

Find hourly flight availability from Heathrow to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 August 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 41% on flights from London Heathrow Airport to Northern Ireland by exploring options for tickets in the morning.

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

Airfare is typical for this route at the moment.
London Heathrow Airport to Northern Ireland flights typically cost between £118 and £227 in September.
The cheapest return price found within the last 5 days was £215 on Multiple Airlines (4 Sept–18 Sept).

How far ahead should I book a flight from London Heathrow Airport to Northern Ireland?

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Northern Ireland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from London Heathrow Airport to Northern Ireland?

Use this chart to determine the cheapest time to fly return from Heathrow to Northern Ireland. Price data was last updated on 8 August 2026.

Travellers seeking maximum savings on their London Heathrow Airport to Northern Ireland flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated 10 August 2026.
See what other customers who have flown with easyJet,British Airways, andRyanair from London Heathrow Airport to Northern Ireland have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,922 reviews
Check prices

Boarding

6.7

Crew

7.7

Entertainment

5.5

Overall

6.9

Food

5.9

Comfort

6.8

Reviews

1 / 20
10.0
Excellent

David J,Jul 2026

LGW - BOD

great pilot who explained tye delays due to the fires in France
easyJet
6.9
Okay
1,922 reviews
easyJet
6.9
Okay
1,922 reviews
Check prices

Boarding

6.7

Crew

7.7

Entertainment

5.5

Overall

6.9

Food

5.9

Comfort

6.8

Reviews

1 / 20
10.0
Excellent

David J,Jul 2026

LGW - BOD

great pilot who explained tye delays due to the fires in France
British Airways
6.7
Okay
8,154 reviews
easyJet
6.9
Okay
1,922 reviews
Check prices

Boarding

6.7

Crew

7.7

Entertainment

5.5

Overall

6.9

Food

5.9

Comfort

6.8

Reviews

1 / 20
10.0
Excellent

David J,Jul 2026

LGW - BOD

great pilot who explained tye delays due to the fires in France
Ryanair
6.4
Okay
easyJet
6.9
Okay
1,922 reviews
Check prices

Boarding

6.7

Crew

7.7

Entertainment

5.5

Overall

6.9

Food

5.9

Comfort

6.8

Reviews

1 / 20
10.0
Excellent

David J,Jul 2026

LGW - BOD

great pilot who explained tye delays due to the fires in France

Related info for your journey

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

  • How long is the flight from London Heathrow Airport to Northern Ireland?

    Departing from London Heathrow Airport to Northern Ireland will take you 1h 20m. The distance from London Heathrow Airport to Northern Ireland is about 312 mi. All flights are typically direct.

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

    The most popular flight routes from London Heathrow Airport to Northern Ireland are London Heathrow - Belfast City, London Heathrow - Belfast Intl and London Heathrow - Londonderry Eglinton.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Northern Ireland (average of £121). Flying from London Heathrow Airport to Northern Ireland in June is currently the most expensive (average of £180). 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

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Alternative routes for Heathrow to Northern Ireland

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

Top 4 airlines flying from Heathrow to Northern Ireland

Discover the top 4 airlines that operate flights from Heathrow to Northern Ireland. 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 10 August 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£23Average£47FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£34Average£75FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£89Average£139FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£140Average£219FlexibilityNo cancel feeOn-time79%
Search Loganair 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 Heathrow to Northern Ireland?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Northern Ireland from Heathrow today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Northern Ireland for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Northern Ireland with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Northern Ireland become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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