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Cheap flights from London Heathrow Airport to Northern Ireland from £42

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 Heathrow Airport to Northern Ireland departing on 2/3. 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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Find the cheapest flights from London Heathrow Airport to Northern Ireland

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
07:00 - 08:25
LHR
-
BHD
1h 25mdirect
British Airways Logo
10:40 - 12:10
BHD
-
LHR
1h 30mdirect
£74British Airways
Sat, 17 Jan - Sun, 18 Jan
British Airways Logo
06:05 - 07:30
LHR
-
BHD
1h 25mdirect
British Airways Logo
19:25 - 20:45
BHD
-
LHR
1h 20mdirect
£88British Airways
Fri, 20 Feb - Wed, 25 Feb
British Airways Logo
06:05 - 07:30
LHR
-
BHD
1h 25mdirect
British Airways Logo
09:10 - 10:40
BHD
-
LHR
1h 30mdirect
£90British Airways
Fri, 30 Jan - Sun, 1 Feb
British Airways Logo
06:15 - 07:40
LHR
-
BHD
1h 25mdirect
British Airways Logo
19:25 - 20:45
BHD
-
LHR
1h 20mdirect
£91British Airways
Tue, 17 Mar - Tue, 24 Mar
British Airways Logo
07:40 - 09:05
LHR
-
BHD
1h 25mdirect
British Airways Logo
17:45 - 19:05
BHD
-
LHR
1h 20mdirect
£92British Airways
Tue, 24 Feb - Thu, 26 Feb
British Airways Logo
07:45 - 09:10
LHR
-
BHD
1h 25mdirect
British Airways Logo
06:35 - 08:10
BHD
-
LHR
1h 35mdirect
£93British Airways
Sun, 1 Feb - Thu, 12 Feb
Loganair Logo
08:45 - 10:15
LHR
-
LDY
1h 30mdirect
Loganair Logo
06:30 - 08:00
LDY
-
LHR
1h 30mdirect
£138Loganair
Fri, 17 Apr - Sat, 18 Apr
Loganair Logo
08:45 - 10:15
LHR
-
LDY
1h 30mdirect
Loganair Logo
14:00 - 15:30
LDY
-
LHR
1h 30mdirect
£140Loganair
Tue, 17 Mar - Tue, 24 Mar
Loganair Logo
08:45 - 10:15
LHR
-
LDY
1h 30mdirect
Loganair Logo
18:05 - 19:35
LDY
-
LHR
1h 30mdirect
£141Loganair
Wed, 14 Jan - Wed, 21 Jan
Multiple Airlines Logo
20:35 - 08:10
LHR
-
BFS
11h 35m1 stop
Multiple Airlines Logo
22:10 - 09:05
BFS
-
LHR
10h 55m1 stop
£211Multiple Airlines
Sun, 1 Feb - Sun, 8 Feb

British Airways flights from London Heathrow Airport to Northern Ireland

Our best British Airways deals on London Heathrow Airport to Northern Ireland flight tickets
British Airways
17 Jan
LHR07:00London Heathrow
1h 25m
BHD08:25Belfast City
18 Jan
BHD10:40Belfast City
1h 30m
LHR12:10London Heathrow
£74
Find similar
British Airways
20 Feb
LHR06:05London Heathrow
1h 25m
BHD07:30Belfast City
25 Feb
BHD19:25Belfast City
1h 20m
LHR20:45London Heathrow
£88
Find similar
British Airways
30 Jan
LHR06:05London Heathrow
1h 25m
BHD07:30Belfast City
1 Feb
BHD09:10Belfast City
1h 30m
LHR10:40London Heathrow
£90
Find similar

Loganair flights from London Heathrow Airport to Northern Ireland

Our best Loganair deals on London Heathrow Airport to Northern Ireland flight tickets
Loganair
17 Apr
LHR08:45London Heathrow
1h 30m
LDY10:15Londonderry Eglinton
18 Apr
LDY06:30Londonderry Eglinton
1h 30m
LHR08:00London Heathrow
£138
Find similar
Loganair
17 Mar
LHR08:45London Heathrow
1h 30m
LDY10:15Londonderry Eglinton
24 Mar
LDY14:00Londonderry Eglinton
1h 30m
LHR15:30London Heathrow
£140
Find similar
Loganair
14 Jan
LHR08:45London Heathrow
1h 30m
LDY10:15Londonderry Eglinton
21 Jan
LDY18:05Londonderry Eglinton
1h 30m
LHR19:35London Heathrow
£141
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 18 December 2025.
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

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Sat 17/1

07:00-08:25

Nonstop1h 25m

Belfast City

Sun 18/1

10:40-12:10

Nonstop1h 30m

£74

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Fri 20/2

06:05-07:30

Nonstop1h 25m

Belfast City

Wed 25/2

19:25-20:45

Nonstop1h 20m

£88

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Fri 30/1

06:05-07:30

Nonstop1h 25m

Belfast City

Sun 1/2

09:10-10:40

Nonstop1h 30m

£90

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Tue 17/3

06:15-07:40

Nonstop1h 25m

Belfast City

Tue 24/3

19:25-20:45

Nonstop1h 20m

£91

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Tue 24/2

07:40-09:05

Nonstop1h 25m

Belfast City

Thu 26/2

17:45-19:05

Nonstop1h 20m

£92

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Sun 1/2

07:45-09:10

Nonstop1h 25m

Belfast City

Thu 12/2

06:35-08:10

Nonstop1h 35m

£93

LondonLondonderry

LHR - LDY

LHRLDY

London Heathrow

Fri 17/4

08:45-10:15

Nonstop1h 30m

Londonderry Eglinton

Sat 18/4

06:30-08:00

Nonstop1h 30m

£138

LondonLondonderry

LHR - LDY

LHRLDY

London Heathrow

Tue 17/3

08:45-10:15

Nonstop1h 30m

Londonderry Eglinton

Tue 24/3

14:00-15:30

Nonstop1h 30m

£140

LondonLondonderry

LHR - LDY

LHRLDY

London Heathrow

Wed 14/1

08:45-10:15

Nonstop1h 30m

Londonderry Eglinton

Wed 21/1

18:05-19:35

Nonstop1h 30m

£141

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 1/2

20:35-08:10

1 stop11h 35m

Belfast Intl

Sun 8/2

22:10-09:05

1 stop10h 55m

£211

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Northern Ireland from

How to get the cheapest flight ticket from London Heathrow Airport to Northern Ireland

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 Northern Ireland?

In general, January is the cheapest month to fly from London Heathrow Airport to Northern Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £100. If you’re not able to fly to Northern Ireland in January, then March is your next best option. Flight prices from London Heathrow Airport to Northern Ireland during March average around £101.

What is the cheapest day to depart on your flight to Northern Ireland?

The cheapest day to depart from London Heathrow Airport to Northern Ireland is on a Wednesday. Travellers who choose to depart for Northern Ireland on a Wednesday will often find tickets for as low as £100. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around £116. These prices are subject to change though, so be sure to set up a Price Alert for flights to Northern Ireland.

What is the cheapest time of day to depart on your flight to Northern Ireland?

Flying to Northern Ireland from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as £122 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £160 on average. Flights to Northern Ireland from London Heathrow Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London Heathrow to Northern Ireland flight route?

Fly from London Heathrow to Belfast City for the best London Heathrow - Northern Ireland flight prices

How far in advance should I book a flight to Northern Ireland?

You are more likely to see cheaper flights to Northern Ireland from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Northern Ireland for around £132 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Northern Ireland from London Heathrow Airport for as low as £102 on momondo.

What cabin class options are available on London Heathrow to Northern Ireland flights?

There are 3 cabin classes available to choose from on London Heathrow to Northern Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap London Heathrow Airport to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Northern Ireland

Best price found

£76

Fastest flight time

1h 20m

Direct flights

Every day

Airports in Northern Ireland

18 airports
The best one-way flight to Northern Ireland from London Heathrow Airport in the past 72 hours is £76. The best return flight deal from London Heathrow Airport to Northern Ireland found on momondo in the last 72 hours is £113.
The fastest flight from London Heathrow Airport to Northern Ireland takes 1h 20m
Direct flights go from London Heathrow Airport to Northern Ireland every day.
There are 18 airports in Northern Ireland. From London Heathrow Airport there are direct flights to Londonderry Eglinton (LDY), Belfast City (BHD).
Search flight deals

  • When did momondo last update prices for flights from London Heathrow Airport to Northern Ireland?

    Prices for flights from London Heathrow Airport to Northern Ireland are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Northern Ireland?

  • How old do you have to be to fly from London Heathrow Airport to Northern Ireland?

    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 Heathrow Airport to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The necessary travel and health documents for your Northern Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Northern Ireland?

Best airlines flying from London Heathrow Airport to Northern Ireland

Compare and see reviews for airlines that fly from London Heathrow Airport to Northern Ireland with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £31Free CancellationRating
6.9
1,851 reviews
Search easyJet flights
British AirwaysPriceFrom £81Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
LoganairPriceFrom £134Free CancellationRating
0.0
0 reviews
Search Loganair flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Northern Ireland . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from London to Northern Ireland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Northern Ireland?

momondo provides multiple filters to help you find the best flight to Northern Ireland 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 Northern Ireland right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Northern Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Northern Ireland trip

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Find better results for your trip to Northern Ireland

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Popular flights according to clicks in the last 7 days on momondo
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