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Cheap flights from Northern Ireland to London Heathrow Airport from £59

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 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LHR
6 Apr — 13 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Heathrow

Enter your travel dates to find the best prices.

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 7 March 2026.

Mon 30/315:20
BHD
-
LHR
Nonstop1h 25m
British Airways
Thu 2/418:30
LHR
-
BHD
Nonstop1h 20m
British Airways
Deal found 4/3£89
Fri 17/420:10
BHD
-
LHR
Nonstop1h 15m
British Airways
Sun 19/408:45
LHR
-
BHD
Nonstop1h 20m
British Airways
Deal found 3/3£95
Wed 1/418:20
BHD
-
LHR
Nonstop1h 20m
British Airways
Wed 8/407:40
LHR
-
BHD
Nonstop1h 20m
British Airways
Deal found 4/3£96
Mon 13/406:30
BHD
-
LHR
Nonstop1h 25m
British Airways
Tue 14/418:05
LHR
-
BHD
Nonstop1h 20m
British Airways
Deal found 3/3£98
Wed 10/618:20
BHD
-
LHR
Nonstop1h 20m
British Airways
Sat 13/607:30
LHR
-
BHD
Nonstop1h 20m
British Airways
Deal found 6/3£99
Thu 7/506:30
BHD
-
LHR
Nonstop1h 25m
British Airways
Mon 11/507:20
LHR
-
BHD
Nonstop1h 20m
British Airways
Deal found 6/3£100
Thu 14/520:35
BHD
-
LHR
Nonstop1h 15m
British Airways
Mon 18/519:20
LHR
-
BHD
Nonstop1h 15m
British Airways
Deal found 4/3£101
Tue 14/419:30
BHD
-
LHR
Nonstop1h 15m
British Airways
Tue 28/418:05
LHR
-
BHD
Nonstop1h 20m
British Airways
Deal found 2/3£101
Fri 24/420:10
BHD
-
LHR
Nonstop1h 15m
British Airways
Tue 28/417:20
LHR
-
BHD
Nonstop1h 25m
British Airways
Deal found 4/3£102
Thu 9/720:35
BHD
-
LHR
Nonstop1h 15m
British Airways
Wed 15/707:40
LHR
-
BHD
Nonstop1h 20m
British Airways
Deal found 3/3£103
Sat 26/919:05
BHD
-
LHR
Nonstop1h 15m
British Airways
Sun 11/1008:45
LHR
-
BHD
Nonstop1h 20m
British Airways
Deal found 3/3£104
Thu 2/406:30
LDY
-
LHR
Nonstop1h 30m
Loganair
Sun 5/411:20
LHR
-
LDY
Nonstop1h 30m
Loganair
Deal found 7/3£145

Find flight deals from Northern Ireland to Heathrow

Keep the following information in mind while searching for Northern Ireland to Heathrow flight deals. Data was last updated 7 March 2026.

Round-trip from

£89

One-way from

£59

Popular in

June

Cheapest in

November

Average price

£55

Good round-trip deal

£160 or less

Good one-way deal

£92 or less
British Airways
  • British Airways
  • 30/3-2/4
  • Nonstop
  • 2h 45m total
  • Northern Ireland to London
Search Deals
British Airways
  • British Airways
  • 26/3
  • Nonstop
  • 1h 20m total
  • Northern Ireland to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£14 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 March 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

 
Customise your flight search to find flights from Northern Ireland to Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 7 March 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

Cheapest return flight
Fastest return journey

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Mon 6/7

19:35-20:50

Nonstop1h 15m

London Heathrow

Tue 7/7

07:30-08:50

Nonstop1h 20m

£109

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Thu 19/3

20:00-21:20

Nonstop1h 20m

London Heathrow

Mon 23/3

07:00-08:25

Nonstop1h 25m

£126

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Sun 5/7

20:10-21:25

Nonstop1h 15m

London Heathrow

Wed 8/7

07:40-09:00

Nonstop1h 20m

£128

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Sun 5/7

20:10-21:25

Nonstop1h 15m

London Heathrow

Tue 7/7

07:30-08:50

Nonstop1h 20m

£129

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Sat 28/3

15:05-16:30

Nonstop1h 25m

London Heathrow

Wed 1/4

19:20-20:35

Nonstop1h 15m

£138

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Wed 25/3

15:40-17:05

Nonstop1h 25m

London Heathrow

Tue 31/3

07:30-08:50

Nonstop1h 20m

£141

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 20/3

19:35-20:55

Nonstop1h 20m

London Heathrow

Mon 23/3

07:00-08:25

Nonstop1h 25m

£142

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 24/7

20:10-21:25

Nonstop1h 15m

London Heathrow

Fri 31/7

07:25-08:45

Nonstop1h 20m

£144

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Sat 28/3

15:05-16:30

Nonstop1h 25m

London Heathrow

Sun 29/3

18:00-19:20

Nonstop1h 20m

£157

LondonderryLondon

LDY - LHR

LDYLHR

Londonderry Eglinton

Sat 18/4

06:30-08:00

Nonstop1h 30m

London Heathrow

Mon 20/4

20:20-21:45

Nonstop1h 25m

£159

Flights are sorted by cheapest return flights first.

Deals found on 2/3

Showing 1-10 of 58 resultsSorted by cheapest first
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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.

Cheapflights Insights

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

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 £66). Flying from Northern Ireland to London Heathrow Airport in July is currently the most expensive (average of £91). 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?

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 7 March 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 63% on the cost of your flight, compared to a flight in the afternoon.

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 21 February 2026.

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

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.

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

    Departing from Northern Ireland to London Heathrow Airport will take you 1h 15m. Airlines will cover a distance of 312 mi. All flights are typically direct.

  • 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 easyJet (£29), British Airways (£50), and Loganair (£68).

  • 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 £66). Flying from Northern Ireland to London Heathrow Airport in July is currently the most expensive (average of £91). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Wembley
Northampton
Luton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Chelmsford
Ipswich
Swindon
Bedford

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

Top 3 airlines flying from Northern Ireland to Heathrow

Discover the top 3 airlines that operate flights from Northern Ireland to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 7 March 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£34Average£75FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£85Average£156FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£136Average£210FlexibilityNo cancel feeOn-time79%
Search Loganair flights

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?

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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