What are the cheapest airlines to fly from Northern Ireland to London Heathrow Airport one-way?

The cheapet airlines for a one-way flight from Northern Ireland to London Heathrow Airport are British Airways (£52), Loganair (£85), and Aer Lingus (£161).

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.

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

Find a great deal and save up to 92% by booking at least 53 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Northern Ireland to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at £53.

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

January is one of the best times of the year to fly to London Heathrow Airport from Northern Ireland. Prices for January average £64 per person but you can even find prices for as low as £21. The most expensive prices can be found in the month of July. Opting for a January flight can save you 37% on your journey compared to booking in July

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.

£52+ Flights from Northern Ireland to London Heathrow Airport

Cheap flight deals from Northern Ireland to Heathrow

Round-trip from	£88
One-way from	£52
Good round-trip deal	£174 or less
Good one-way deal	£95 or less

British Airways
3/5-4/5
Nonstop
2h 40m total
Northern Ireland to London

Search Deals

British Airways
17/3
Nonstop
1h 20m total
Northern Ireland to London

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

Find flight deals from Northern Ireland to Heathrow

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 22 January 2025.

Sat 1/306:30BHD - LHR

Nonstop1h 35mBritish Airways

Wed 12/317:10LHR - BHD

Nonstop1h 30mBritish Airways

Deal found 20/1£74

Thu 6/308:25BFS - LHR

1 stop10h 50mMultiple Airlines

Tue 11/316:40LHR - BFS

1 stop4h 10mMultiple Airlines

Deal found 20/1£125

Fri 7/1117:30BHD - LHR

1 stop3h 25mMultiple Airlines

Mon 10/1107:00LHR - BHD

Nonstop1h 25mMultiple Airlines

Deal found 20/1£129

Wed 12/318:05LDY - LHR

Nonstop1h 30mLoganair

Sat 29/316:10LHR - LDY

Nonstop1h 25mLoganair

Deal found 21/1£137

Sat 2/806:30LDY - LHR

Nonstop1h 30mBritish Airways

Tue 5/820:15LHR - LDY

Nonstop1h 25mBritish Airways

Deal found 21/1£147

Sat 8/306:30LDY - LHR

Nonstop1h 30mMultiple Airlines

Sat 15/319:00LHR - LDY

1 stop23h 30mMultiple Airlines

Deal found 22/1£183

Thu 6/306:30BHD - LHR

1 stop4h 15mKLM

Sat 8/308:40LHR - BHD

1 stop8h 10mKLM

Deal found 20/1£243

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 22 January 2025.

Sat 3/519:00BHD - LHR

Nonstop1h 20mBritish Airways

Sun 4/510:55LHR - BHD

Nonstop1h 20mBritish Airways

Deal found 21/1£88

Thu 6/308:25BFS - LHR

1 stop10h 50mMultiple Airlines

Tue 11/316:40LHR - BFS

1 stop4h 10mMultiple Airlines

Deal found 20/1£125

Wed 12/318:05LDY - LHR

Nonstop1h 30mLoganair

Sat 29/316:10LHR - LDY

Nonstop1h 25mLoganair

Deal found 21/1£137

Tue 18/217:20BHD - LHR

1 stop14h 20mKLM

Tue 25/208:40LHR - BHD

1 stop8h 10mKLM

Deal found 21/1£249

Fri 21/217:30BHD - LHR

1 stop4h 20mMultiple Airlines

Sun 23/206:50LHR - BHD

Nonstop1h 25mMultiple Airlines

Deal found 21/1£148

Thu 6/206:30LDY - LHR

Nonstop1h 30mBritish Airways

Mon 10/208:45LHR - LDY

Nonstop1h 30mBritish Airways

Deal found 21/1£162

Wed 12/306:30LDY - LHR

Nonstop1h 30mMultiple Airlines

Sat 29/319:00LHR - LDY

1 stop20h 15mMultiple Airlines

Deal found 21/1£188

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 22 January 2025.

Sat 3/519:00BHD - LHR

Nonstop1h 20mBritish Airways

Sun 4/510:55LHR - BHD

Nonstop1h 20mBritish Airways

Deal found 21/1£88

Wed 12/318:05LDY - LHR

Nonstop1h 30mLoganair

Sat 29/316:10LHR - LDY

Nonstop1h 25mLoganair

Deal found 21/1£137

Thu 6/206:30LDY - LHR

Nonstop1h 30mBritish Airways

Mon 10/208:45LHR - LDY

Nonstop1h 30mBritish Airways

Deal found 21/1£162

Wed 5/206:30LDY - LHR

Nonstop1h 30mMultiple Airlines

Wed 5/220:20LHR - LDY

Nonstop1h 25mMultiple Airlines

Deal found 21/1£233

Sun 13/419:40BHD - LHR

Nonstop1h 20mMultiple Airlines

Tue 15/416:10LHR - BHD

Nonstop1h 20mMultiple Airlines

Deal found 21/1£1,378

Last-minute flights from Northern Ireland to Heathrow
Discover last-minute flight deals from Northern Ireland to Heathrow. Data last updated 22 January 2025 and is based on user searches.

Mon 27/122:25BFS - LHR

2 stops17h 10mMultiple Airlines

Tue 28/120:50LHR - BFS

2 stops22h 40mMultiple Airlines

Deal found 21/1£239

Tue 28/106:55BHD - LHR

2 stops8h 40mAer Lingus

Tue 28/120:45LHR - BHD

2 stops15h 50mAer Lingus

Deal found 21/1£474

Wed 29/114:00LDY - LHR

Nonstop1h 30mBritish Airways

Wed 29/120:20LHR - LDY

Nonstop1h 25mBritish Airways

Deal found 21/1£206

Wed 29/106:30LDY - LHR

Nonstop1h 30mMultiple Airlines

Wed 29/113:40LHR - LDY

3 stops23h 15mMultiple Airlines

Deal found 21/1£392

Sat 1/206:30BHD - LHR

Nonstop1h 35mBritish Airways

Sat 1/212:50LHR - BHD

Nonstop1h 25mBritish Airways

Deal found 21/1£94

Sat 1/207:10BHD - LHR

1 stop6h 05mMultiple Airlines

Sat 8/215:45LHR - BHD

Nonstop1h 30mMultiple Airlines

Deal found 21/1£203

Sat 1/217:20BHD - LHR

1 stop14h 20mKLM

Sat 8/208:40LHR - BHD

1 stop8h 10mKLM

Deal found 21/1£272

Wed 5/206:30LDY - LHR

Nonstop1h 30mMultiple Airlines

Wed 5/220:20LHR - LDY

Nonstop1h 25mMultiple Airlines

Deal found 21/1£233

Thu 6/206:30LDY - LHR

Nonstop1h 30mBritish Airways

Mon 10/208:45LHR - LDY

Nonstop1h 30mBritish Airways

Deal found 21/1£162

Tue 18/218:05LDY - LHR

Nonstop1h 30mLoganair

Tue 25/208:45LHR - LDY

Nonstop1h 30mLoganair

Deal found 21/1£165

Wed 19/206:30BHD - LHR

1 stop9h 35mKLM

Wed 26/217:05LHR - BHD

1 stop3h 55mKLM

Deal found 20/1£255

Tue 25/217:10BHD - LHR

Nonstop1h 20mBritish Airways

Wed 26/212:10LHR - BHD

Nonstop1h 25mBritish Airways

Deal found 20/1£76

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 22 January 2025.

Mon 17/319:30BHD - LHR

Nonstop1h 20mBritish Airways

Deal found 21/1£52

Fri 18/717:35BFS - LHR

1 stop4h 10mMultiple Airlines

Deal found 20/1£78

Wed 5/218:05LDY - LHR

Nonstop1h 30mBritish Airways

Deal found 21/1£81

Wed 5/218:05LDY - LHR

Nonstop1h 30mLoganair

Deal found 21/1£85

Tue 11/317:15BHD - LHR

1 stop3h 10mMultiple Airlines

Deal found 21/1£90

Thu 20/207:10BHD - LHR

2 stops9h 40mAer Lingus

Deal found 21/1£161

Tue 18/317:20BHD - LHR

1 stop14h 20mKLM

Deal found 21/1£264

Find flights from Northern Ireland to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Sat 3/5

19:00-20:20

Nonstop1h 20m

London Heathrow

Sun 4/5

10:55-12:15

Nonstop1h 20m

£88

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Thu 6/3

08:25-19:15

1 stop10h 50m

London Heathrow

Tue 11/3

16:40-20:50

1 stop4h 10m

£125

LondonderryLondon

LDY - LHR

LDYLHR

Londonderry Eglinton

Wed 12/3

18:05-19:35

Nonstop1h 30m

London Heathrow

Sat 29/3

16:10-17:35

Nonstop1h 25m

£137

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 21/2

17:30-21:50

1 stop4h 20m

London Heathrow

Sun 23/2

06:50-08:15

Nonstop1h 25m

£148

LondonderryLondon

LDY - LHR

LDYLHR

Londonderry Eglinton

Thu 6/2

06:30-08:00

Nonstop1h 30m

London Heathrow

Mon 10/2

08:45-10:15

Nonstop1h 30m

£162

LondonderryLondon

LDY - LHR

LDYLHR

Londonderry Eglinton

Wed 12/3

06:30-08:00

Nonstop1h 30m

London Heathrow

Sat 29/3

19:00-15:15

1 stop20h 15m

£188

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Tue 18/2

17:20-07:40

1 stop14h 20m

London Heathrow

Tue 25/2

08:40-16:50

1 stop8h 10m

£249

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Mon 17/3

19:30-20:50

Nonstop1h 20m

£52

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Fri 18/7

17:35-21:45

1 stop4h 10m

£78

LondonderryLondon

LDY - LHR

LDYLHR

Londonderry Eglinton

Wed 5/2

18:05-19:35

Nonstop1h 30m

£81

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 14 results

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.

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.

Travel insights for flights from Northern Ireland to Heathrow

Get recent, data-driven insights about flights from Northern Ireland to Heathrow including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Northern Ireland to London Heathrow Airport (average of £112). Flying from Northern Ireland to London Heathrow Airport in August 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to London Heathrow Airport as you normally would.

Rainfall in Heathrow by month

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.

Temperature in Heathrow by month

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).

Reviews of airlines servicing Heathrow

To help decide which airline to fly from Northern Ireland to London, see what other customers have to say about KLM and British Airways. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,341 reviews

Check prices

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM

7.8

Good

1,341 reviews

KLM

7.8

Good

1,341 reviews

Check prices

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus

7.1

Good

1,082 reviews

KLM

7.8

Good

1,341 reviews

Check prices

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

British Airways

6.6

Okay

6,834 reviews

KLM

7.8

Good

1,341 reviews

Check prices

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

What are the cheapest airlines to fly from Northern Ireland to London Heathrow Airport one-way?
The cheapet airlines for a one-way flight from Northern Ireland to London Heathrow Airport are British Airways (£52), Loganair (£85), and Aer Lingus (£161).
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, January is the cheapest month in which you can book a flight from Northern Ireland to London Heathrow Airport (average of £112). Flying from Northern Ireland to London Heathrow Airport in August 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

Deal

Hounslow

Gatwick

Croydon

Milton Keynes

Slough

Luton

Ilford

Hayes

Eastbourne

Northampton

Swindon

Maidstone

Crawley

Winchester

Southend-on-Sea

Wembley

Ipswich

Watford

Southall

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Northern Ireland to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
easyJet	Cheapest£36	Average£81	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
British Airways	Cheapest£79	Average£150	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Loganair	Cheapest£140	Average£219	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 £52

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 17/3. 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

Round-trip from

One-way from

Good round-trip deal

Good one-way deal

Find 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 22 January 2025.

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 22 January 2025.

Find flights from Northern Ireland to Heathrow within your budget

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.

Travel insights for flights from Northern Ireland to Heathrow

Get recent, data-driven insights about flights from Northern Ireland to Heathrow including ideal travel times, pricing trends, and more.

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 22 January 2025.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

To help decide which airline to fly from Northern Ireland to London, see what other customers have to say about KLM and British Airways. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines to fly from Northern Ireland to London Heathrow Airport one-way?

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 Northern Ireland?

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.

Top 3 airlines flying from Northern Ireland to Heathrow

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 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 22 January 2025.