In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Northern Ireland, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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

The most popular flight routes from London Heathrow Airport to Northern Ireland are London Heathrow - Belfast City, London Heathrow - Belfast Intl and London Heathrow - Londonderry Eglinton.

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

Users have found that booking a flight from London Heathrow Airport to Northern Ireland at least 44 days early can save you up to 170% on average compared to booking a flight this week. If booking 44 days before your flight isn’t an option for you, users have found flights from London Heathrow Airport to Northern Ireland for as little as £64 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £107 for flights departing within the next 3 days.

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

Flights from London Heathrow Airport to Northern Ireland lean towards being more expensive in July. Prices are generally better when you fly from London Heathrow Airport to Northern Ireland in January, with the cheapest ticket starting at £27.

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

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

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

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

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

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

£40+ Flights from London Heathrow Airport to Northern Ireland

Cheap flight deals from Heathrow to Northern Ireland

Round-trip from	£87
One-way from	£40
Popular in	July
Cheapest in	January
Average price	£110
Good round-trip deal	£98 or less
Good one-way deal	£53 or less

British Airways
30/9-3/10
Nonstop
2h 40m total
London to Northern Ireland

Search Deals

British Airways
30/10
Nonstop
1h 25m total
London to Northern Ireland

Search Deals

Highest demand for flights based on searches. 27% potential increase in price (£18 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease (£4 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

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

Search Deals

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

Search Deals

Find flight deals from Heathrow to Northern Ireland

Cheapest flights from Heathrow to Northern Ireland
Explore the most affordable flight options available from Heathrow to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Tue 30/907:30LHR - BHD

Nonstop1h 20mBritish Airways

Fri 3/1020:05BHD - LHR

Nonstop1h 20mBritish Airways

Deal found 15/7£87

Thu 16/1008:45LHR - LDY

Nonstop1h 30mLoganair

Sun 19/1009:05LDY - LHR

Nonstop1h 30mLoganair

Deal found 16/7£155

Mon 18/821:35LHR - BFS

1 stop10h 15mMultiple Airlines

Thu 28/813:50BFS - LHR

1 stop7h 55mMultiple Airlines

Deal found 16/7£160

Thu 25/921:50LHR - LDY

1 stop15h 55mMultiple Airlines

Fri 26/918:05LDY - LHR

Nonstop1h 30mMultiple Airlines

Deal found 16/7£187

Mon 1/906:30LHR - CAL

1 stop10h 45mMultiple Airlines

Mon 8/917:35CAL - LHR

1 stop4h 35mMultiple Airlines

Deal found 17/7£226

Mon 1/908:45LHR - CAL

2 stops8h 30mLoganair

Mon 8/909:05CAL - LHR

2 stops10h 30mLoganair

Deal found 17/7£445

Best flights from Heathrow to Northern Ireland
Discover carefully curated flight deals from Heathrow to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 July 2025.

Tue 30/907:30LHR - BHD

Nonstop1h 20mBritish Airways

Fri 3/1020:05BHD - LHR

Nonstop1h 20mBritish Airways

Deal found 15/7£87

Thu 16/1008:45LHR - LDY

Nonstop1h 30mLoganair

Sun 19/1009:05LDY - LHR

Nonstop1h 30mLoganair

Deal found 16/7£155

Mon 18/821:35LHR - BFS

1 stop10h 15mMultiple Airlines

Thu 28/813:50BFS - LHR

1 stop7h 55mMultiple Airlines

Deal found 16/7£160

Thu 25/921:50LHR - LDY

1 stop15h 55mMultiple Airlines

Fri 26/918:05LDY - LHR

Nonstop1h 30mMultiple Airlines

Deal found 16/7£187

Mon 1/906:30LHR - CAL

1 stop10h 45mMultiple Airlines

Mon 8/917:35CAL - LHR

1 stop4h 35mMultiple Airlines

Deal found 17/7£226

Mon 1/908:45LHR - CAL

2 stops8h 30mLoganair

Mon 8/909:05CAL - LHR

2 stops10h 30mLoganair

Deal found 17/7£445

Direct flights from Heathrow to Northern Ireland
Explore direct flight options from Heathrow to Northern Ireland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 July 2025.

Tue 30/907:30LHR - BHD

Nonstop1h 20mBritish Airways

Fri 3/1020:05BHD - LHR

Nonstop1h 20mBritish Airways

Deal found 15/7£87

Thu 16/1008:45LHR - LDY

Nonstop1h 30mLoganair

Sun 19/1009:05LDY - LHR

Nonstop1h 30mLoganair

Deal found 16/7£155

Thu 28/808:45LHR - LDY

Nonstop1h 30mMultiple Airlines

Sat 30/806:30LDY - LHR

Nonstop1h 30mMultiple Airlines

Deal found 18/7£302

Thu 14/820:20LHR - LDY

Nonstop1h 25mBritish Airways

Sun 17/818:05LDY - LHR

Nonstop1h 30mBritish Airways

Deal found 17/7£463

Last-minute flights from Heathrow to Northern Ireland
Discover last-minute flight deals from Heathrow to Northern Ireland. Data last updated 18 July 2025 and is based on user searches.

Wed 23/706:55LHR - LDY

1 stop8h 40mMultiple Airlines

Fri 25/706:30LDY - LHR

Nonstop1h 30mMultiple Airlines

Deal found 17/7£248

Fri 25/708:45LHR - CAL

2 stops8h 30mLoganair

Sun 27/717:50CAL - LHR

2 stops14h 10mLoganair

Deal found 18/7£742

Sat 26/708:45LHR - LDY

Nonstop1h 30mLoganair

Sun 3/809:05LDY - LHR

Nonstop1h 30mLoganair

Deal found 17/7£334

Sun 27/708:00LHR - BHD

Nonstop1h 20mBritish Airways

Thu 31/719:25BHD - LHR

Nonstop1h 20mBritish Airways

Deal found 16/7£168

Sun 27/720:30LHR - BFS

1 stop3h 00mMultiple Airlines

Tue 29/707:45BFS - LHR

1 stop7h 25mMultiple Airlines

Deal found 18/7£225

Mon 28/721:40LHR - BHD

1 stop23h 10mMultiple Airlines

Thu 31/712:40BHD - LHR

Nonstop1h 30mMultiple Airlines

Deal found 18/7£245

Sun 17/808:00LHR - BHD

Nonstop1h 20mBritish Airways

Tue 19/820:20BHD - LHR

Nonstop1h 20mBritish Airways

Deal found 16/7£94

Mon 18/821:35LHR - BFS

1 stop10h 15mMultiple Airlines

Thu 28/813:50BFS - LHR

1 stop7h 55mMultiple Airlines

Deal found 16/7£160

Sat 30/808:45LHR - LDY

Nonstop1h 30mLoganair

Sat 6/906:30LDY - LHR

Nonstop1h 30mLoganair

Deal found 16/7£175

Sun 31/821:40LHR - LDY

1 stop9h 40mMultiple Airlines

Sun 7/917:00LDY - LHR

1 stop3h 50mMultiple Airlines

Deal found 16/7£199

Sun 31/807:55LHR - CAL

1 stop9h 20mMultiple Airlines

Sun 7/917:35CAL - LHR

1 stop21h 55mMultiple Airlines

Deal found 17/7£266

Sun 31/811:20LHR - CAL

2 stops29h 55mLoganair

Sun 7/917:35CAL - LHR

2 stops26h 00mLoganair

Deal found 17/7£483

One-way flights from Heathrow to Northern Ireland
Search for one-way flight options from Heathrow to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 18 July 2025.

Thu 30/1006:50LHR - BHD

Nonstop1h 25mBritish Airways

Deal found 16/7£40

Wed 26/1108:45LHR - LDY

Nonstop1h 30mLoganair

Deal found 16/7£68

Tue 2/909:15LHR - BFS

1 stop3h 50mMultiple Airlines

Deal found 17/7£81

Thu 30/1006:50LHR - BHD

1 stop9h 15mMultiple Airlines

Deal found 16/7£90

Wed 22/1006:55LHR - LDY

1 stop8h 40mMultiple Airlines

Deal found 16/7£92

Sun 27/720:20LHR - LDY

Nonstop1h 25mBritish Airways

Deal found 18/7£223

Wed 6/820:20LHR - CAL

2 stops36h 25mLoganair

Deal found 16/7£282

Thu 31/721:50LHR - CAL

1 stop10h 55mMultiple Airlines

Deal found 17/7£342

Cheapflights Fare Finder

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

Tue 30/9

07:30-08:50

Nonstop1h 20m

Belfast City

Fri 3/10

20:05-21:25

Nonstop1h 20m

£87

LondonLondonderry

LHR - LDY

LHRLDY

London Heathrow

Thu 16/10

08:45-10:15

Nonstop1h 30m

Londonderry Eglinton

Sun 19/10

09:05-10:35

Nonstop1h 30m

£155

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 18/8

21:35-07:50

1 stop10h 15m

Belfast Intl

Thu 28/8

13:50-21:45

1 stop7h 55m

£160

LondonLondonderry

LHR - LDY

LHRLDY

London Heathrow

Thu 25/9

21:50-13:45

1 stop15h 55m

Londonderry Eglinton

Fri 26/9

18:05-19:35

Nonstop1h 30m

£187

LondonCampbeltown

LHR - CAL

LHRCAL

London Heathrow

Mon 1/9

06:30-17:15

1 stop10h 45m

Campbeltown Machrihanish

Mon 8/9

17:35-22:10

1 stop4h 35m

£226

LondonCampbeltown

LHR - CAL

LHRCAL

London Heathrow

Mon 1/9

08:45-17:15

2 stops8h 30m

Campbeltown Machrihanish

Mon 8/9

09:05-19:35

2 stops10h 30m

£445

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Thu 30/10

06:50-08:15

Nonstop1h 25m

£40

LondonLondonderry

LHR - LDY

LHRLDY

London Heathrow

Wed 26/11

08:45-10:15

Nonstop1h 30m

£68

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 2/9

09:15-13:05

1 stop3h 50m

£81

LondonBelfast

LHR - BHD

LHRBHD

London Heathrow

Thu 30/10

06:50-16:05

1 stop9h 15m

£90

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Showing 1-10 of 14 results

Best time to book a flight from Heathrow to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Heathrow 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Northern Ireland

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Northern Ireland (average of £67). Flying from London Heathrow Airport to Northern Ireland in July is currently the most expensive (average of £90). 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 LHR to NIR?

When flying from London Heathrow Airport to Northern Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Reviews of airlines servicing Northern Ireland

See what other customers who have flown with British Airways from London Heathrow Airport to Northern Ireland have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.6

Okay

7,151 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

British Airways

6.6

Okay

7,151 reviews

British Airways

6.6

Okay

7,151 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

What are the most popular routes from London Heathrow Airport to Northern Ireland?
The most popular flight routes from London Heathrow Airport to Northern Ireland are London Heathrow - Belfast City, London Heathrow - Belfast Intl and London Heathrow - Londonderry Eglinton.
Can I find deals for flights from Heathrow to Northern Ireland that include hotel bookings?
Yes. In addition to deals on Heathrow to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Northern Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Northern Ireland.
Can I find deals for business class flights from Heathrow to Northern Ireland?
Yes. Cheapflights offers flight deals from Heathrow to Northern Ireland 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 London Heathrow Airport to Northern Ireland?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Northern Ireland (average of £67). Flying from London Heathrow Airport to Northern Ireland in July is currently the most expensive (average of £90). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Northern Ireland

Luton to Belfast Intl flights

Gatwick to Belfast Intl flights

Stansted to Edinburgh flights

Heathrow to Edinburgh flights

Gatwick to Edinburgh flights

Luton to Edinburgh flights

London City to Edinburgh flights

Stansted to Belfast Intl flights

Heathrow to Glasgow Intl flights

Gatwick to Belfast City flights

Gatwick to Glasgow Intl flights

Luton to Glasgow Intl flights

Luton to Belfast City flights

Stansted to Glasgow Intl flights

Heathrow to Belfast City flights

Heathrow to Belfast Intl flights

London City to Glasgow Intl flights

Gatwick to Newquay flights

Stansted to Belfast City flights

Gatwick to Manchester flights

Heathrow to Manchester flights

London City to Belfast City flights

London City to Belfast Intl flights

Heathrow to Aberdeen flights

Heathrow to Inverness flights

London City to Manchester flights

Heathrow to Newquay flights

Heathrow to Newcastle upon Tyne flights

Luton to Manchester flights

Gatwick to Aberdeen flights

Luton to Inverness flights

Gatwick to Inverness flights

Stansted to Manchester flights

Stansted to Aberdeen flights

Stansted to Newquay flights

London City to Aberdeen flights

London City to Newquay flights

Gatwick to Newcastle upon Tyne flights

Southend to Newquay flights

Luton to Aberdeen flights

London City to Inverness flights

Stansted to Newcastle upon Tyne flights

Luton to Newcastle upon Tyne flights

Heathrow to Derry flights

Southend to Glasgow Intl flights

Heathrow to Gatwick flights

Luton to Newquay flights

London City to Newcastle upon Tyne flights

Stansted to Inverness flights

Luton to Liverpool flights

Direct flights to United Kingdom

Top 3 airlines flying from Heathrow to Northern Ireland

Airline	Cheapest	Average	Flexibility	On-time
easyJet	Cheapest£31	Average£75	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
British Airways	Cheapest£79	Average£137	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Loganair	Cheapest£129	Average£179	FlexibilityNo cancel fee	On-time79%	Search Loganair flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Northern Ireland from Heathrow today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Northern Ireland for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Northern Ireland with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London Heathrow Airport to Northern Ireland from £40

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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Northern Ireland

Keep the following information in mind while searching for Heathrow to Northern Ireland flight deals. Data was last updated 18 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Heathrow to Northern Ireland

Cheapest flights from Heathrow to Northern IrelandExplore the most affordable flight options available from Heathrow to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Explore the most affordable flight options available from Heathrow to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Northern Ireland

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

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Northern Ireland

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

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

Find hourly flight availability from Heathrow to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 July 2025.

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

Reviews of airlines servicing Northern Ireland

See what other customers who have flown with British Airways from London Heathrow Airport to Northern Ireland have to say. Users have also rated airlines 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 Heathrow to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

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

Top 3 airlines flying from Heathrow to Northern Ireland

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 Heathrow to Northern Ireland?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Heathrow to Northern Ireland
Explore the most affordable flight options available from Heathrow to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.