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Cheap flights from London Heathrow Airport to Northern Ireland from £51

LHR — BFS
1 Oct — 8 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Northern Ireland

Tue 13/1007:30 -
Nonstop1h 20m
Tue 13/1016:25 -
Nonstop1h 20m
Deal found 28/8£83
Fri 9/1008:50 -
Nonstop1h 20m
Sun 11/1020:10 -
Nonstop1h 15m
Deal found 29/8£94
Mon 12/1009:05 -
Nonstop1h 25m
Tue 13/1016:25 -
Nonstop1h 20m
Deal found 28/8£99
Thu 24/1208:40 -
Nonstop1h 25m
Sat 26/1206:35 -
Nonstop1h 35m
Deal found 30/8£100
Thu 1/1012:10 -
Nonstop1h 25m
Thu 8/1006:30 -
Nonstop1h 25m
Deal found 27/8£101
Thu 24/914:15 -
Nonstop1h 25m
Thu 1/1019:30 -
Nonstop1h 15m
Deal found 27/8£102
Tue 29/918:05 -
Nonstop1h 20m
Tue 6/1006:30 -
Nonstop1h 25m
Deal found 29/8£103
Fri 25/907:25 -
Nonstop1h 20m
Fri 9/1011:00 -
Nonstop1h 25m
Deal found 28/8£103
Sat 19/907:30 -
Nonstop1h 20m
Sat 3/1016:15 -
Nonstop1h 20m
Deal found 31/8£104
Thu 1/1012:10 -
Nonstop1h 25m
Mon 5/1006:30 -
Nonstop1h 25m
Deal found 29/8£105
Mon 28/909:05 -
Nonstop1h 25m
Mon 5/1019:35 -
Nonstop1h 15m
Deal found 31/8£106
Wed 7/1016:15 -
Nonstop1h 25m
Sat 10/1006:30 -
Nonstop1h 30m
Deal found 29/8£154

Find flight deals from Heathrow to Northern Ireland

Round-trip from

£83

One-way from

£51

Popular in

July

Cheapest in

January

Average price

£61

Good round-trip deal

£126 or less

Good one-way deal

£66 or less
British Airways
  • British Airways
  • 13/10-13/10
  • Nonstop
  • 2h 40m total
  • London to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 24/9
  • Nonstop
  • 1h 25m total
  • London to Northern Ireland
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£18 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from London Heathrow to Northern Ireland.
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Price to beat on a one-way flight from London Heathrow to Northern Ireland.
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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

Cheapest return flight
Fastest return journey

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Fri 16/10

06:25-07:45

Nonstop1h 20m

Belfast City

Fri 23/10

20:10-21:25

Nonstop1h 15m

£106

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Fri 2/10

18:05-19:25

Nonstop1h 20m

Belfast City

Sun 4/10

20:10-21:25

Nonstop1h 15m

£110

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Thu 1/10

17:20-18:45

Nonstop1h 25m

Belfast City

Sun 4/10

06:30-07:55

Nonstop1h 25m

£110

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Fri 18/9

07:25-08:45

Nonstop1h 20m

Belfast City

Sun 20/9

06:30-07:55

Nonstop1h 25m

£111

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Tue 6/10

11:30-12:55

Nonstop1h 25m

Belfast City

Tue 6/10

16:25-17:45

Nonstop1h 20m

£113

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Tue 13/10

07:30-08:50

Nonstop1h 20m

Belfast City

Tue 13/10

13:45-15:10

Nonstop1h 25m

£114

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Sun 27/9

08:45-10:05

Nonstop1h 20m

Belfast City

Sun 27/9

20:10-21:25

Nonstop1h 15m

£154

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Wed 14/10

20:55-09:20

1 stop12h 25m

Belfast City

Wed 21/10

09:50-20:55

1 stop11h 05m

£188

LondonLondonderry

LHR London Heathrow - LDY Londonderry Eglinton

LHRLDY

London Heathrow

Thu 8/10

08:45-10:15

Nonstop1h 30m

Londonderry Eglinton

Mon 12/10

18:10-19:40

Nonstop1h 30m

£189

LondonBelfast

LHR London Heathrow - BHD Belfast City

LHRBHD

London Heathrow

Tue 22/9

18:05-19:25

Nonstop1h 20m

Belfast City

Wed 23/9

20:35-21:50

Nonstop1h 15m

£192

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Northern Ireland (average of £120). Flying from London Heathrow Airport to Northern Ireland in June is currently the most expensive (average of £182). 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?

Unlike at midday, when flights are generally more expensive, you can save up to 40% on flights from London Heathrow Airport to Northern Ireland by exploring options for tickets in the morning.

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

Airfare is typical for this route at the moment.
London Heathrow Airport to Northern Ireland flights typically cost between £127 and £227 in October.
The cheapest return price found within the last 5 days was £165 on Multiple Airlines (8 Oct–11 Oct).

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

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Northern Ireland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

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

Reviews of airlines servicing Northern Ireland

See what other customers who have flown with easyJet,British Airways, andRyanair 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.
easyJet
6.9
Okay
1,927 reviews
Check prices

Crew

7.7

Comfort

6.8

Food

5.9

Boarding

6.7

Entertainment

5.5

Overall

6.9

Reviews

1 / 20
2.0
Mediocre

Aleksandra,Aug 2026

LGW - RMU

Awful plane, old, rickety, ripped seats in places, rubbish left from previous passengers. The crew clothing was tatty, old, unkempt. I have never experienced anything like this. Ryanair had better standards.
easyJet
6.9
Okay
1,927 reviews
easyJet
6.9
Okay
1,927 reviews
Check prices

Crew

7.7

Comfort

6.8

Food

5.9

Boarding

6.7

Entertainment

5.5

Overall

6.9

Reviews

1 / 20
2.0
Mediocre

Aleksandra,Aug 2026

LGW - RMU

Awful plane, old, rickety, ripped seats in places, rubbish left from previous passengers. The crew clothing was tatty, old, unkempt. I have never experienced anything like this. Ryanair had better standards.
British Airways
6.7
Okay
8,195 reviews
easyJet
6.9
Okay
1,927 reviews
Check prices

Crew

7.7

Comfort

6.8

Food

5.9

Boarding

6.7

Entertainment

5.5

Overall

6.9

Reviews

1 / 20
2.0
Mediocre

Aleksandra,Aug 2026

LGW - RMU

Awful plane, old, rickety, ripped seats in places, rubbish left from previous passengers. The crew clothing was tatty, old, unkempt. I have never experienced anything like this. Ryanair had better standards.
Ryanair
6.4
Okay
easyJet
6.9
Okay
1,927 reviews
Check prices

Crew

7.7

Comfort

6.8

Food

5.9

Boarding

6.7

Entertainment

5.5

Overall

6.9

Reviews

1 / 20
2.0
Mediocre

Aleksandra,Aug 2026

LGW - RMU

Awful plane, old, rickety, ripped seats in places, rubbish left from previous passengers. The crew clothing was tatty, old, unkempt. I have never experienced anything like this. Ryanair had better standards.

Related info for your journey

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

    Departing from London Heathrow Airport to Northern Ireland will take you 1h 20m. The distance from London Heathrow Airport to Northern Ireland is about 312 mi. All flights are typically direct.

  • 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Northern Ireland (average of £120). Flying from London Heathrow Airport to Northern Ireland in June is currently the most expensive (average of £182). 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

Stansted to Edinburgh flights
Gatwick to Edinburgh flights
Luton to Edinburgh flights
Heathrow to Edinburgh flights
London City to Edinburgh flights
Gatwick to Belfast Intl flights
Luton to Belfast Intl flights
Gatwick to Glasgow Intl flights
Stansted to Glasgow Intl flights
Luton to Glasgow Intl flights
Heathrow to Glasgow Intl flights
Heathrow to Belfast City flights
Gatwick to Belfast City flights
Heathrow to Belfast Intl flights
London City to Belfast Intl flights
Heathrow to Manchester flights
Stansted to Belfast City flights
London City to Belfast City flights
Stansted to Belfast Intl flights
London City to Glasgow Intl flights
Luton to Belfast City flights
Gatwick to Manchester flights
London City to Manchester flights
Stansted to Manchester flights
Luton to Manchester flights
Heathrow to Newcastle upon Tyne flights
Heathrow to Inverness flights
Gatwick to Inverness flights
Gatwick to Aberdeen flights
Luton to Inverness flights
Heathrow to Aberdeen flights
Stansted to Newcastle upon Tyne flights
London City to Inverness flights
Gatwick to Newcastle upon Tyne flights
Luton to Newcastle upon Tyne flights
Heathrow to Newquay flights
Luton to Aberdeen flights
London City to Newcastle upon Tyne flights
London City to Newquay flights
Stansted to Inverness flights
London City to Aberdeen flights
Southend to Manchester flights
Stansted to Aberdeen flights
Southend to Edinburgh flights
Stansted to Newquay flights
Gatwick to Newquay flights
Heathrow to Gatwick flights
Luton to Newquay flights
Gatwick to Prestwick flights
London City to Bristol flights

Top 4 airlines flying from Heathrow to Northern Ireland

AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£23Average£47FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£35Average£77FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£90Average£141FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£140Average£220FlexibilityNo cancel feeOn-time79%
Search Loganair flights

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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.

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