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Cheap flights from Northern Ireland to London from £53

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to London departing on 6/5. 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

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Find the cheapest flights from Northern Ireland to London

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
09:10 - 10:40
BHD
-
LHR
1h 30mdirect
British Airways Logo
15:45 - 17:15
LHR
-
BHD
1h 30mdirect
£83British Airways
Sun, 1 Mar - Sat, 7 Mar
British Airways Logo
06:45 - 08:20
BHD
-
LHR
1h 35mdirect
British Airways Logo
17:10 - 18:40
LHR
-
BHD
1h 30mdirect
£87British Airways
Fri, 6 Mar - Mon, 9 Mar
British Airways Logo
20:10 - 21:25
BHD
-
LHR
1h 15mdirect
British Airways Logo
07:20 - 08:40
LHR
-
BHD
1h 20mdirect
£88British Airways
Fri, 17 Apr - Mon, 20 Apr
British Airways Logo
06:45 - 08:20
BHD
-
LHR
1h 35mdirect
British Airways Logo
07:45 - 09:10
LHR
-
BHD
1h 25mdirect
£88British Airways
Fri, 6 Mar - Sun, 8 Mar
British Airways Logo
06:45 - 08:20
BHD
-
LHR
1h 35mdirect
British Airways Logo
07:45 - 09:10
LHR
-
BHD
1h 25mdirect
£89British Airways
Fri, 20 Mar - Sun, 22 Mar
British Airways Logo
19:05 - 20:20
BHD
-
LHR
1h 15mdirect
British Airways Logo
07:35 - 08:55
LHR
-
BHD
1h 20mdirect
£90British Airways
Sat, 9 May - Sun, 10 May
Loganair Logo
18:05 - 19:35
LDY
-
LHR
1h 30mdirect
Loganair Logo
08:45 - 10:15
LHR
-
LDY
1h 30mdirect
£138Loganair
Wed, 4 Feb - Wed, 11 Feb
Loganair Logo
18:05 - 19:35
LDY
-
LHR
1h 30mdirect
Loganair Logo
08:45 - 10:15
LHR
-
LDY
1h 30mdirect
£141Loganair
Wed, 4 Mar - Wed, 18 Mar
Loganair Logo
06:30 - 08:00
LDY
-
LHR
1h 30mdirect
Loganair Logo
08:45 - 10:15
LHR
-
LDY
1h 30mdirect
£152Loganair
Thu, 26 Feb - Thu, 5 Mar
Multiple Airlines Logo
15:40 - 09:05
LDY
-
LHR
17h 25m
2 stops
Multiple Airlines Logo
16:10 - 17:35
LHR
-
LDY
1h 25mdirect
£180Multiple Airlines
Wed, 25 Feb - Wed, 4 Mar

British Airways flights from Northern Ireland to London Heathrow Airport

Our best British Airways deals on Northern Ireland to London Heathrow Airport flight tickets
British Airways
1 Mar
BHD09:10Belfast City
1h 30m
LHR10:40London Heathrow
7 Mar
LHR15:45London Heathrow
1h 30m
BHD17:15Belfast City
£83
British Airways
6 Mar
BHD06:45Belfast City
1h 35m
LHR08:20London Heathrow
9 Mar
LHR17:10London Heathrow
1h 30m
BHD18:40Belfast City
£87
British Airways
17 Apr
BHD20:10Belfast City
1h 15m
LHR21:25London Heathrow
20 Apr
LHR07:20London Heathrow
1h 20m
BHD08:40Belfast City
£88

Loganair flights from Northern Ireland to London Heathrow Airport

Our best Loganair deals on Northern Ireland to London Heathrow Airport flight tickets
Loganair
4 Feb
LDY18:05Londonderry Eglinton
1h 30m
LHR19:35London Heathrow
11 Feb
LHR08:45London Heathrow
1h 30m
LDY10:15Londonderry Eglinton
£138
Loganair
4 Mar
LDY18:05Londonderry Eglinton
1h 30m
LHR19:35London Heathrow
18 Mar
LHR08:45London Heathrow
1h 30m
LDY10:15Londonderry Eglinton
£141
Loganair
26 Feb
LDY06:30Londonderry Eglinton
1h 30m
LHR08:00London Heathrow
5 Mar
LHR08:45London Heathrow
1h 30m
LDY10:15Londonderry Eglinton
£152

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to London Heathrow 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 279,928 searches. Data last updated 13 January 2026.
Use the filters below to find and compare flights from Northern Ireland to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Sun 1/3

09:10-10:40

Nonstop1h 30m

London Heathrow

Sat 7/3

15:45-17:15

Nonstop1h 30m

£83

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 6/3

06:45-08:20

Nonstop1h 35m

London Heathrow

Mon 9/3

17:10-18:40

Nonstop1h 30m

£87

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 17/4

20:10-21:25

Nonstop1h 15m

London Heathrow

Mon 20/4

07:20-08:40

Nonstop1h 20m

£88

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 6/3

06:45-08:20

Nonstop1h 35m

London Heathrow

Sun 8/3

07:45-09:10

Nonstop1h 25m

£88

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 20/3

06:45-08:20

Nonstop1h 35m

London Heathrow

Sun 22/3

07:45-09:10

Nonstop1h 25m

£89

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Sat 9/5

19:05-20:20

Nonstop1h 15m

London Heathrow

Sun 10/5

07:35-08:55

Nonstop1h 20m

£90

LondonderryLondon

LDY - LHR

LDYLHR

Londonderry Eglinton

Wed 4/2

18:05-19:35

Nonstop1h 30m

London Heathrow

Wed 11/2

08:45-10:15

Nonstop1h 30m

£138

LondonderryLondon

LDY - LHR

LDYLHR

Londonderry Eglinton

Wed 4/3

18:05-19:35

Nonstop1h 30m

London Heathrow

Wed 18/3

08:45-10:15

Nonstop1h 30m

£141

LondonderryLondon

LDY - LHR

LDYLHR

Londonderry Eglinton

Thu 26/2

06:30-08:00

Nonstop1h 30m

London Heathrow

Thu 5/3

08:45-10:15

Nonstop1h 30m

£152

LondonderryLondon

LDY - LHR

LDYLHR

Londonderry Eglinton

Wed 25/2

15:40-09:05

2 stops17h 25m

London Heathrow

Wed 4/3

16:10-17:35

Nonstop1h 25m

£180

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 London from

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

In general, October is the cheapest month to fly from Northern Ireland to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £95. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from Northern Ireland averaging around £111.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Northern Ireland to London Heathrow Airport in the evening for as low as £177. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £700 on average. Flights to London Heathrow Airport from Northern Ireland in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

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

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Northern Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £121 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Northern Ireland for as low as £98 on momondo.

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

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

Cheap Northern Ireland to London Heathrow Airport flight deals and tips

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

Best price found

£87

Fastest flight time

1h 15m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Northern Ireland in the past 72 hours is £87. The best return flight deal from Northern Ireland to London Heathrow Airport found on momondo in the last 72 hours is £204.
The fastest flight from Northern Ireland to London Heathrow Airport takes 1h 15m
Direct flights go from Northern Ireland to London Heathrow Airport every day.
Search flight deals

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Northern Ireland to London Heathrow Airport

Compare and see reviews for airlines that fly from Northern Ireland to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £35Free CancellationRating
6.9
1,862 reviews
Search easyJet flights
British AirwaysPriceFrom £79Free CancellationRating
6.7
7,665 reviews
Search British Airways flights
LoganairPriceFrom £134Free CancellationRating
0.0
0 reviews
Search Loganair flights

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Northern Ireland to London for you.

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

Yes. momondo allows you to filter the results for Northern Ireland to London flights to just show those with flexible booking policies.

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

Once all potential Northern Ireland to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Northern Ireland to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Northern Ireland to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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