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

Departing from Northern Ireland to London Heathrow Airport will take you 1h 25m. Airlines will cover a distance of 312 mi. All flights are typically direct.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

The most popular route from Northern Ireland to London Heathrow Airport is Belfast City - London Heathrow. You may also consider Belfast Intl - London Heathrow or Londonderry Eglinton - London Heathrow.

What are the most popular airlines that fly from Northern Ireland to London Heathrow Airport?

Before booking your flight from Northern Ireland to London Heathrow Airport check out the most popular airlines for this route: British Airways, Loganair or easyJet.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Northern Ireland to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£64+ Cheap Flights from Northern Ireland to London Heathrow Airport

Cheap flight deals from Northern Ireland to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Northern Ireland to Heathrow
Explore the most affordable flight options available from Northern Ireland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Sun 1/1120:30 -

Nonstop1h 15m

Sun 8/1113:50 -

Nonstop1h 25m

Deal found 2/9£108

Thu 5/1120:00 -

Nonstop1h 15m

Sun 8/1109:45 -

Nonstop1h 25m

Deal found 2/9£109

Sat 3/1016:15 -

Nonstop1h 20m

Sat 10/1007:30 -

Nonstop1h 20m

Deal found 2/9£110

Thu 22/1020:35 -

Nonstop1h 15m

Sun 25/1018:10 -

Nonstop1h 25m

Deal found 1/9£110

Sun 25/1020:30 -

Nonstop1h 15m

Wed 28/1013:25 -

Nonstop1h 25m

Deal found 2/9£111

Fri 2/1016:25 -

Nonstop1h 20m

Sat 3/1016:45 -

Nonstop1h 25m

Deal found 2/9£112

Sun 20/1209:20 -

Nonstop1h 25m

Tue 5/117:10 -

Nonstop1h 25m

Deal found 2/9£113

Thu 31/1220:00 -

Nonstop1h 15m

Thu 7/115:25 -

Nonstop1h 30m

Deal found 2/9£114

Thu 31/1220:00 -

Nonstop1h 15m

Fri 1/117:20 -

Nonstop1h 25m

Deal found 2/9£115

Thu 31/1206:30 -

Nonstop1h 35m

Sun 3/118:10 -

Nonstop1h 25m

Deal found 2/9£115

Thu 24/920:35 -

Nonstop1h 15m

Mon 28/909:05 -

Nonstop1h 25m

Deal found 30/8£121

Sat 3/1006:30 -

Nonstop1h 30m

Mon 5/1020:20 -

Nonstop1h 25m

Deal found 31/8£169

Best flights from Northern Ireland to Heathrow
Discover carefully curated flight deals from Northern Ireland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Thu 29/1014:10 -

Nonstop1h 25m

Thu 29/1017:40 -

Nonstop1h 25m

Deal found 2/9£112

Sat 3/1006:30 -

Nonstop1h 30m

Mon 5/1020:20 -

Nonstop1h 25m

Deal found 31/8£169

Thu 1/1009:50 -

1 stop21h 50m

Thu 8/1014:45 -

1 stop18h 35m

Deal found 31/8£188

Mon 5/1011:45 -

2 stops7h 40m

Thu 8/1008:45 -

Nonstop1h 30m

Deal found 31/8£206

Sat 26/919:05 -

Nonstop1h 15m

Sun 11/1008:45 -

Nonstop1h 20m

Deal found 1/9£134

Fri 18/920:10 -

Nonstop1h 15m

Mon 21/919:20 -

Nonstop1h 15m

Deal found 30/8£152

Sat 26/906:30 -

Nonstop1h 30m

Sun 27/916:15 -

Nonstop1h 25m

Deal found 1/9£169

Fri 18/920:10 -

Nonstop1h 15m

Sun 20/908:45 -

Nonstop1h 20m

Deal found 3/9£159

Thu 3/1217:20 -

1 stop3h 30m

Sat 5/1206:30 -

1 stop10h 20m

Deal found 2/9£210

Sat 3/1006:30 -

Nonstop1h 30m

Mon 5/1007:40 -

2 stops6h 35m

Deal found 31/8£213

Wed 23/906:30 -

Nonstop1h 30m

Wed 23/916:15 -

Nonstop1h 25m

Deal found 1/9£203

Fri 27/1117:05 -

1 stop3h 45m

Sun 29/1106:30 -

1 stop10h 15m

Deal found 31/8£210

Fri 23/1022:15 -

1 stop9h 20m

Sun 25/1008:35 -

1 stop7h 15m

Deal found 3/9£219

Sat 19/906:30 -

Nonstop1h 30m

Sun 20/916:15 -

Nonstop1h 25m

Deal found 3/9£181

Fri 16/1018:10 -

Nonstop1h 30m

Sun 18/1016:15 -

Nonstop1h 25m

Deal found 3/9£204

Thu 24/906:30 -

Nonstop1h 30m

Mon 28/920:20 -

Nonstop1h 25m

Deal found 31/8£181

Fri 11/1217:20 -

1 stop3h 30m

Sun 13/1206:30 -

1 stop10h 20m

Deal found 1/9£224

Fri 27/1118:05 -

Nonstop1h 30m

Mon 30/1120:15 -

Nonstop1h 25m

Deal found 2/9£204

Fri 2/1022:10 -

2 stops12h 35m

Sat 10/1006:30 -

2 stops14h 45m

Deal found 1/9£238

Sat 26/906:30 -

Nonstop1h 30m

Mon 5/1008:45 -

Nonstop1h 30m

Deal found 31/8£181

Fri 30/1009:40 -

1 stop7h 20m

Fri 6/1117:50 -

1 stop15h 20m

Deal found 31/8£226

Mon 21/914:40 -

1 stop6h 45m

Sun 27/911:05 -

2 stops12h 20m

Deal found 3/9£243

Fri 25/918:35 -

1 stop13h 20m

Thu 1/1006:15 -

1 stop7h 30m

Deal found 30/8£256

Sat 3/1007:15 -

2 stops13h 40m

Sat 10/1006:30 -

2 stops9h 45m

Deal found 1/9£278

Tue 13/1010:30 -

2 stops6h 50m

Thu 15/1017:10 -

1 stop5h 15m

Deal found 2/9£287

Fri 2/1011:25 -

1 stop7h 10m

Sun 4/1015:50 -

2 stops7h 35m

Deal found 30/8£289

Tue 15/914:45 -

1 stop6h 40m

Thu 17/906:15 -

1 stop7h 30m

Deal found 1/9£303

Tue 15/914:45 -

1 stop6h 40m

Fri 18/917:35 -

1 stop5h 15m

Deal found 1/9£303

Thu 24/914:25 -

1 stop7h 00m

Mon 28/906:15 -

1 stop8h 45m

Deal found 30/8£319

Find flight deals from Northern Ireland to Heathrow

Round-trip from	£108
One-way from	£64
Popular in	July
Cheapest in	November
Average price	£57
Good round-trip deal	£177 or less
Good one-way deal	£150 or less

British Airways
1/11-8/11
Nonstop
2h 40m total
Northern Ireland to London

Search Deals

British Airways
12/10-31/12
Nonstop
1h 25m total
Northern Ireland to London

Search Deals

Highest demand for flights based on searches. 29% potential increase in price (£20 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£3 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Northern Ireland to London Heathrow.

Search Deals

Price to beat on a one-way flight from Northern Ireland to London Heathrow.

Search Deals

Cheapflights Fare Finder

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

Cheapest return flight

BelfastLondon

BHD Belfast City - LHR London Heathrow

BHDLHR

Belfast City

Sun 25/10

17:35-18:55

Nonstop1h 20m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£70

Fastest return journey

BelfastLondon

BHD Belfast City - LHR London Heathrow

BHDLHR

Belfast City

Tue 3/11

18:15-19:30

Nonstop1h 15m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

BelfastLondon

BHD Belfast City - LHR London Heathrow

BHDLHR

Belfast City

Tue 27/10

08:45-10:10

Nonstop1h 25m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

BelfastLondon

BHD Belfast City - LHR London Heathrow

BHDLHR

Belfast City

Mon 30/11

06:35-08:10

Nonstop1h 35m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

BelfastLondon

BHD Belfast City - LHR London Heathrow

BHDLHR

Belfast City

Sun 4/10

20:10-21:25

Nonstop1h 15m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

BelfastLondon

BFS Belfast Intl - LHR London Heathrow

BFSLHR

Belfast Intl

Fri 9/10

06:40-14:30

2 stops7h 50m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£80

LondonderryLondon

LDY Londonderry Eglinton - LHR London Heathrow

LDYLHR

Londonderry Eglinton

Mon 23/11

18:05-19:35

Nonstop1h 30m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£87

LondonderryLondon

LDY Londonderry Eglinton - LHR London Heathrow

LDYLHR

Londonderry Eglinton

Mon 23/11

19:00-10:10

2 stops15h 10m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£90

BelfastLondon

BFS Belfast Intl - LHR London Heathrow

BFSLHR

Belfast Intl

Wed 7/10

07:30-18:20

2 stops10h 50m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£92

BelfastLondon

BFS Belfast Intl - LHR London Heathrow

BFSLHR

Belfast Intl

Tue 1/12

10:40-20:05

2 stops9h 25m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£95

Flights are sorted by cheapest return flights first.

Deals found on 1/9

Showing 1-10 of 58 resultsSorted by cheapest first

...

Best time to book a flight from Northern Ireland to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Northern Ireland with our price prediction graph.

BHD-LHR

LDY-LHR

BFS-LHR

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 Heathrow Airport

GBNIR-LHR

BHD-LHR

LDY-LHR

BFS-LHR

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

Currently, December is the cheapest month in which you can book a flight from Northern Ireland to London Heathrow Airport (average of £119). Flying from Northern Ireland to London Heathrow Airport in July is currently the most expensive (average of £161). 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 LHR?

It’s optimal to fly from Northern Ireland to London Heathrow Airport in the evening. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the afternoon.

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

Airfare is above average for this route at the moment.

Northern Ireland to London Heathrow Airport flights typically cost between £106 and £185 in October.
The cheapest return price found within the last 5 days was £207 on Multiple Airlines (17 Oct–24 Oct).

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

To ensure you get the cheapest price possible for a flight from Northern Ireland to London Heathrow Airport, you should look to book at least 59 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

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

Related info for your journey

How long is the flight from Northern Ireland to London Heathrow Airport?
Departing from Northern Ireland to London Heathrow Airport will take you 1h 25m. Airlines will cover a distance of 312 mi. All flights are typically direct.
What are the most popular routes from Northern Ireland to London Heathrow Airport?
The most popular route from Northern Ireland to London Heathrow Airport is Belfast City - London Heathrow. You may also consider Belfast Intl - London Heathrow or Londonderry Eglinton - London Heathrow.
Can I find deals for flights from Northern Ireland to Heathrow that include hotel bookings?
Yes. In addition to deals on Northern Ireland to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Northern Ireland to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Heathrow.
Can I find deals for business class flights from Northern Ireland to Heathrow?
Yes. Cheapflights offers flight deals from Northern Ireland to Heathrow 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 Heathrow Airport?
Currently, December is the cheapest month in which you can book a flight from Northern Ireland to London Heathrow Airport (average of £119). Flying from Northern Ireland to London Heathrow Airport in July is currently the most expensive (average of £161). 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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Watford

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Aberdeen to London City flights

Manchester to London City flights

Manchester to Luton flights

Manchester to Stansted flights

Aberdeen to Luton flights

Newcastle upon Tyne to Heathrow flights

Prestwick to Gatwick flights

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Newquay to Luton flights

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Birmingham to London City flights

Top 3 airlines flying from Northern Ireland to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
easyJet	Cheapest£34	Average£85	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
British Airways	Cheapest£87	Average£162	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Loganair	Cheapest£141	Average£196	FlexibilityNo cancel fee	On-time79%	Search Loganair flights

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

Cheapflights helps you search for flights from Northern Ireland to Heathrow 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 Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Northern Ireland.

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

Certainly. Search results for flights to Heathrow 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 Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Northern Ireland to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Northern Ireland to London Heathrow Airport from £64

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Northern Ireland to Heathrow

Cheapest flights from Northern Ireland to HeathrowExplore the most affordable flight options available from Northern Ireland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Explore the most affordable flight options available from Northern Ireland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Best flights from Northern Ireland to HeathrowDiscover carefully curated flight deals from Northern Ireland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Discover carefully curated flight deals from Northern Ireland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Direct flights from Northern Ireland to HeathrowExplore direct flight options from Northern Ireland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 September 2026.

Explore direct flight options from Northern Ireland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 September 2026.

Last-minute flights from Northern Ireland to HeathrowDiscover last-minute flight deals from Northern Ireland to Heathrow. Data last updated 3 September 2026 and is based on user searches.

Discover last-minute flight deals from Northern Ireland to Heathrow. Data last updated 3 September 2026 and is based on user searches.

One-way flights from Northern Ireland to HeathrowSearch for one-way flight options from Northern Ireland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Search for one-way flight options from Northern Ireland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Find flight deals from Northern Ireland to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to London Heathrow Airport that are best for you.

Best time to book a flight from Northern Ireland to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Northern Ireland with our price prediction graph.

Cheapflights Insights

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

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

Find hourly flight availability from Northern Ireland to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 September 2026.

It’s optimal to fly from Northern Ireland to London Heathrow Airport in the evening. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the afternoon.

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

Airfare is above average for this route at the moment.

Northern Ireland to London Heathrow Airport flights typically cost between £106 and £185 in October.The cheapest return price found within the last 5 days was £207 on Multiple Airlines (17 Oct–24 Oct).

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

To ensure you get the cheapest price possible for a flight from Northern Ireland to London Heathrow Airport, you should look to book at least 59 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Use this chart to determine the cheapest time to fly return from Northern Ireland to Heathrow. Price data was last updated on 29 August 2026.

Related info for your journey

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

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

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

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

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

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

Travelling to a place near London Heathrow Airport?

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 Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Northern Ireland to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 September 2026.

Northern Ireland and Heathrow flights

Browse other Northern Ireland and Heathrow flight options. Last updated on 3 September 2026.

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Northern Ireland to Heathrow flights

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Top 3 airlines flying from Northern Ireland to Heathrow

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

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

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

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

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Cheapest flights from Northern Ireland to Heathrow
Explore the most affordable flight options available from Northern Ireland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Best flights from Northern Ireland to Heathrow
Discover carefully curated flight deals from Northern Ireland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Direct flights from Northern Ireland to Heathrow
Explore direct flight options from Northern Ireland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 September 2026.

Last-minute flights from Northern Ireland to Heathrow
Discover last-minute flight deals from Northern Ireland to Heathrow. Data last updated 3 September 2026 and is based on user searches.

One-way flights from Northern Ireland to Heathrow
Search for one-way flight options from Northern Ireland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Northern Ireland to London Heathrow Airport flights typically cost between £106 and £185 in October.
The cheapest return price found within the last 5 days was £207 on Multiple Airlines (17 Oct–24 Oct).