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Cheap flights from London Heathrow Airport to Northern Ireland from £45

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 18/4. 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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0 bags

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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
09:05 - 10:30
LHR
-
BHD
1h 25mdirect
British Airways Logo
19:25 - 20:45
BHD
-
LHR
1h 20mdirect
£81British Airways
Wed, 18 Mar - Mon, 23 Mar
British Airways Logo
06:50 - 08:15
LHR
-
BHD
1h 25mdirect
British Airways Logo
15:40 - 17:05
BHD
-
LHR
1h 25mdirect
£93British Airways
Thu, 12 Mar - Wed, 18 Mar
British Airways Logo
06:15 - 07:40
LHR
-
BHD
1h 25mdirect
British Airways Logo
11:25 - 12:55
BHD
-
LHR
1h 30mdirect
£94British Airways
Tue, 17 Mar - Tue, 24 Mar
British Airways Logo
09:45 - 11:10
LHR
-
BHD
1h 25mdirect
British Airways Logo
09:10 - 10:40
BHD
-
LHR
1h 30mdirect
£94British Airways
Sun, 1 Mar - Sun, 8 Mar
British Airways Logo
18:05 - 19:25
LHR
-
BHD
1h 20mdirect
British Airways Logo
18:20 - 19:40
BHD
-
LHR
1h 20mdirect
£95British Airways
Tue, 28 Apr - Wed, 29 Apr
British Airways Logo
06:05 - 07:30
LHR
-
BHD
1h 25mdirect
British Airways Logo
15:05 - 16:30
BHD
-
LHR
1h 25mdirect
£96British Airways
Fri, 20 Mar - Tue, 24 Mar
Loganair Logo
08:45 - 10:15
LHR
-
LDY
1h 30mdirect
Loganair Logo
06:30 - 08:00
LDY
-
LHR
1h 30mdirect
£140Loganair
Wed, 25 Feb - Thu, 26 Feb
Loganair Logo
08:45 - 10:15
LHR
-
LDY
1h 30mdirect
Loganair Logo
06:30 - 08:00
LDY
-
LHR
1h 30mdirect
£153Loganair
Thu, 19 Mar - Thu, 26 Mar
Loganair Logo
11:20 - 12:50
LHR
-
LDY
1h 30mdirect
Loganair Logo
09:05 - 10:35
LDY
-
LHR
1h 30mdirect
£154Loganair
Sun, 1 Mar - Sun, 8 Mar
Multiple Airlines Logo
18:30 - 09:35
LHR
-
BFS
15h 05m
2 stops
Multiple Airlines Logo
12:10 - 21:35
BFS
-
LHR
9h 25m
2 stops
£227Multiple Airlines
Thu, 5 Mar - Thu, 12 Mar

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
18 Mar
LHR09:05London Heathrow
1h 25m
BHD10:30Belfast City
23 Mar
BHD19:25Belfast City
1h 20m
LHR20:45London Heathrow
£81
British Airways
12 Mar
LHR06:50London Heathrow
1h 25m
BHD08:15Belfast City
18 Mar
BHD15:40Belfast City
1h 25m
LHR17:05London Heathrow
£93
British Airways
17 Mar
LHR06:15London Heathrow
1h 25m
BHD07:40Belfast City
24 Mar
BHD11:25Belfast City
1h 30m
LHR12:55London Heathrow
£94

Loganair flights from London Heathrow Airport to Northern Ireland

Our best Loganair deals on London Heathrow Airport to Northern Ireland flight tickets
Loganair
25 Feb
LHR08:45London Heathrow
1h 30m
LDY10:15Londonderry Eglinton
26 Feb
LDY06:30Londonderry Eglinton
1h 30m
LHR08:00London Heathrow
£140
Loganair
19 Mar
LHR08:45London Heathrow
1h 30m
LDY10:15Londonderry Eglinton
26 Mar
LDY06:30Londonderry Eglinton
1h 30m
LHR08:00London Heathrow
£153
Loganair
1 Mar
LHR11:20London Heathrow
1h 30m
LDY12:50Londonderry Eglinton
8 Mar
LDY09:05Londonderry Eglinton
1h 30m
LHR10:35London Heathrow
£154

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 3 February 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

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Wed 18/3

09:05-10:30

Nonstop1h 25m

Belfast City

Mon 23/3

19:25-20:45

Nonstop1h 20m

£81

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Thu 12/3

06:50-08:15

Nonstop1h 25m

Belfast City

Wed 18/3

15:40-17:05

Nonstop1h 25m

£93

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Tue 17/3

06:15-07:40

Nonstop1h 25m

Belfast City

Tue 24/3

11:25-12:55

Nonstop1h 30m

£94

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Sun 1/3

09:45-11:10

Nonstop1h 25m

Belfast City

Sun 8/3

09:10-10:40

Nonstop1h 30m

£94

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Tue 28/4

18:05-19:25

Nonstop1h 20m

Belfast City

Wed 29/4

18:20-19:40

Nonstop1h 20m

£95

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Fri 20/3

06:05-07:30

Nonstop1h 25m

Belfast City

Tue 24/3

15:05-16:30

Nonstop1h 25m

£96

LondonLondonderry

LHR - LDY

LHRLDY

London Heathrow

Wed 25/2

08:45-10:15

Nonstop1h 30m

Londonderry Eglinton

Thu 26/2

06:30-08:00

Nonstop1h 30m

£140

LondonLondonderry

LHR - LDY

LHRLDY

London Heathrow

Thu 19/3

08:45-10:15

Nonstop1h 30m

Londonderry Eglinton

Thu 26/3

06:30-08:00

Nonstop1h 30m

£153

LondonLondonderry

LHR - LDY

LHRLDY

London Heathrow

Sun 1/3

11:20-12:50

Nonstop1h 30m

Londonderry Eglinton

Sun 8/3

09:05-10:35

Nonstop1h 30m

£154

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 5/3

18:30-09:35

2 stops15h 05m

Belfast Intl

Thu 12/3

12:10-21:35

2 stops9h 25m

£227

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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, March 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 £99. If you’re not able to fly to Northern Ireland in March, then November is your next best option. Flight prices from London Heathrow Airport to Northern Ireland during November average around £111.

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 £123 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 £154 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 £130 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 £99 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

£74

Fastest flight time

1h 15m

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 £74. The best return flight deal from London Heathrow Airport to Northern Ireland found on momondo in the last 72 hours is £95.
The fastest flight from London Heathrow Airport to Northern Ireland takes 1h 15m
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 £30Free CancellationRating
6.9
1,867 reviews
Search easyJet flights
British AirwaysPriceFrom £82Free CancellationRating
6.7
7,712 reviews
Search British Airways flights
LoganairPriceFrom £133Free 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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