How long does it take to fly to London Heathrow Airport?

Flight times vary depending on what airport in Ireland you fly out of and what airport in London Heathrow Airport you fly into. For example, flying from Cork to London Heathrow Airport takes 1h 15m on average. On the other hand, flying from Shannon to London Heathrow Airport takes 1h 20m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

What is the cheapest airline that flies from Ireland to London Heathrow?

British Airways, Aer Lingus, and Scandinavian Airlines are the most popular carriers operating from Ireland to London Heathrow

How many flights depart from Ireland to London Heathrow Airport on average per week?

The number of flights available between Ireland and London Heathrow Airport is 625 per week as of August 2025. The most frequent departure day is Sun, with 17% of weekly flights leaving on this day.

How many flights depart from Ireland to London Heathrow Airport on average per day?

As of August 2025, there are 89 flights per day flying from Ireland to London Heathrow Airport. The most common time of day flights depart is 07:00, with 46% of flights taking off at midday.

When did momondo last update prices for flights from Ireland to London Heathrow Airport?

Prices for flights from Ireland to London Heathrow Airport were last updated today.

How many operators does momondo search for flights from Ireland to London Heathrow Airport?

The number of operators available for flights from Ireland to London Heathrow Airport is 2 as of August 2025.

How old do you have to be to fly from Ireland to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

€41 Cheap Flights from Ireland to London Heathrow Airport in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ireland to London

Round-trip

One-way

Last minute

Direct

Recent return flight deals from Ireland to London

17:55 - 19:15DUB-LHR

1h 20mdirect

06:30 - 07:55LHR-DUB

1h 25mdirect

€83British Airways

Find Deal

Sat, 15 Nov - Mon, 15 Dec

10:20 - 11:55DUB-LHR

1h 35mdirect

12:45 - 14:15LHR-DUB

1h 30mdirect

€84British Airways

Find Deal

Wed, 4 Feb - Sun, 8 Feb

13:10 - 14:35DUB-LHR

1h 25mdirect

06:30 - 07:55LHR-DUB

1h 25mdirect

€85British Airways

Find Deal

Sat, 17 Jan - Mon, 19 Jan

13:10 - 14:35DUB-LHR

1h 25mdirect

18:15 - 19:40LHR-DUB

1h 25mdirect

€86British Airways

Find Deal

Sat, 17 Jan - Mon, 19 Jan

17:55 - 19:15DUB-LHR

1h 20mdirect

06:30 - 07:55LHR-DUB

1h 25mdirect

€87British Airways

Find Deal

Mon, 15 Dec - Wed, 17 Dec

13:05 - 14:30NOC-LHR

1h 25mdirect

11:05 - 12:35LHR-NOC

1h 30mdirect

€97Aer Lingus

Find Deal

Mon, 22 Sep - Mon, 29 Sep

21:15 - 22:40SNN-LHR

1h 25mdirect

09:50 - 11:20LHR-SNN

1h 30mdirect

€98Aer Lingus

Find Deal

Mon, 22 Sep - Mon, 29 Sep

13:05 - 14:30NOC-LHR

1h 25mdirect

11:05 - 12:35LHR-NOC

1h 30mdirect

€101Aer Lingus

Find Deal

Tue, 23 Sep - Tue, 30 Sep

13:05 - 14:30NOC-LHR

1h 25mdirect

11:05 - 12:35LHR-NOC

1h 30mdirect

€102Aer Lingus

Find Deal

Fri, 5 Sep - Tue, 9 Sep

07:30 - 09:05DUB-LHR

1h 35mdirect

06:20 - 07:45LHR-DUB

1h 25mdirect

€120

Find Deal

Fri, 5 Sep - Fri, 12 Sep

British Airways flights from Ireland to London Heathrow Airport

Our best British Airways deals on Ireland to London Heathrow Airport flight tickets

British Airways

15 Nov

DUB17:55Dublin

1h 20m

LHR19:15London Heathrow

15 Dec

LHR06:30London Heathrow

1h 25m

DUB07:55Dublin

€83

Find similar

British Airways

4 Feb

DUB10:20Dublin

1h 35m

LHR11:55London Heathrow

8 Feb

LHR12:45London Heathrow

1h 30m

DUB14:15Dublin

€84

Find similar

British Airways

17 Jan

DUB13:10Dublin

1h 25m

LHR14:35London Heathrow

19 Jan

LHR06:30London Heathrow

1h 25m

DUB07:55Dublin

€85

Find similar

Aer Lingus flights from Ireland to London Heathrow Airport

Our best Aer Lingus deals on Ireland to London Heathrow Airport flight tickets

Aer Lingus

22 Sept

NOC13:05Knock Intl

1h 25m

LHR14:30London Heathrow

29 Sept

LHR11:05London Heathrow

1h 30m

NOC12:35Knock Intl

€97

Find similar

Aer Lingus

22 Sept

SNN21:15Shannon

1h 25m

LHR22:40London Heathrow

29 Sept

LHR09:50London Heathrow

1h 30m

SNN11:20Shannon

€98

Find similar

Aer Lingus

23 Sept

NOC13:05Knock Intl

1h 25m

LHR14:30London Heathrow

30 Sept

LHR11:05London Heathrow

1h 30m

NOC12:35Knock Intl

€101

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 15/11

17:55-19:15

Nonstop1h 20m

London Heathrow

Mon 15/12

06:30-07:55

Nonstop1h 25m

€83

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 4/2

10:20-11:55

Nonstop1h 35m

London Heathrow

Sun 8/2

12:45-14:15

Nonstop1h 30m

€84

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 17/1

13:10-14:35

Nonstop1h 25m

London Heathrow

Mon 19/1

06:30-07:55

Nonstop1h 25m

€85

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 17/1

13:10-14:35

Nonstop1h 25m

London Heathrow

Mon 19/1

18:15-19:40

Nonstop1h 25m

€86

DublinLondon

DUB - LHR

DUBLHR

Dublin

Mon 15/12

17:55-19:15

Nonstop1h 20m

London Heathrow

Wed 17/12

06:30-07:55

Nonstop1h 25m

€87

KnockLondon

NOC - LHR

NOCLHR

Knock Intl

Mon 22/9

13:05-14:30

Nonstop1h 25m

London Heathrow

Mon 29/9

11:05-12:35

Nonstop1h 30m

€97

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Mon 22/9

21:15-22:40

Nonstop1h 25m

London Heathrow

Mon 29/9

09:50-11:20

Nonstop1h 30m

€98

KnockLondon

NOC - LHR

NOCLHR

Knock Intl

Tue 23/9

13:05-14:30

Nonstop1h 25m

London Heathrow

Tue 30/9

11:05-12:35

Nonstop1h 30m

€101

KnockLondon

NOC - LHR

NOCLHR

Knock Intl

Fri 5/9

13:05-14:30

Nonstop1h 25m

London Heathrow

Tue 9/9

11:05-12:35

Nonstop1h 30m

€102

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 5/9

07:30-09:05

Nonstop1h 35m

London Heathrow

Fri 12/9

06:20-07:45

Nonstop1h 25m

€120

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ireland to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Ireland averaging around €120.

What is the cheapest day to depart on your flight to London Heathrow Airport?

The cheapest day to depart on your flight to London Heathrow Airport is on a Friday when prices can be found for as low as €479. This is often the case because there is less demand to fly during this day of the week. On the other hand, Thursday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €655.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Ireland to London Heathrow Airport in the evening for as low as €166. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €756 on average. Flights to London Heathrow Airport from Ireland in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Ireland to London Heathrow flight route?

Fly from Shannon to London Heathrow for the best Ireland - London Heathrow flight prices

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

You are more likely to see cheaper flights to London Heathrow Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around €138 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Ireland for as low as €92 on momondo.

What cabin class options are available on Ireland to London Heathrow flights?

There are 3 cabin classes available to choose from on Ireland to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Ireland to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to London Heathrow Airport

Best price found	€41
Fastest flight time	1h 15m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from Ireland in the past 72 hours is €41. The best return flight deal from Ireland to London Heathrow Airport found on momondo in the last 72 hours is €83.

The fastest flight from Ireland to London Heathrow Airport takes 1h 15m

Direct flights go from Ireland to London Heathrow Airport every day.

Search flight deals

When did momondo last update prices for flights from Ireland to London Heathrow Airport?
Prices for flights from Ireland to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Ireland to London Heathrow Airport?
The number of operators available for flights from Ireland to London Heathrow Airport is 2 as of August 2025.
How old do you have to be to fly from Ireland to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Ireland to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ireland to London Heathrow Airport is Airbus A321neo (29.04% of total bookings). The next most popular plane models are Airbus A320neo (14.07%), Boeing 787-9 Dreamliner (13.07%), and Boeing 737 MAX 8 (9.40%).

Best airlines flying from Ireland to London Heathrow Airport

Compare and see reviews for airlines that fly from Ireland to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom €73	Free Cancellation	Rating 6.6 7,261 reviews		Search British Airways flights
Aer Lingus	PriceFrom €86	Free Cancellation	Rating 7.1 1,207 reviews		Search Aer Lingus flights

Milton Keynes

Gatwick

Southend-on-Sea

Wembley

Watford

Surbiton

Northampton

Chichester

Croydon

Abingdon

Bishop's Stortford

Chelmsford

St. Albans

Slough

Woking

Luton

Sudbury

Newbury

Dorking

Harlow

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to London . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to London with flexible booking policies on momondo?

Yes. All flights to London from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ireland to London.

I’m not ready to book a flight from Ireland to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Fri 15/8

Fri 22/8

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular Cities in the United Kingdom

Flights to London City Airportfrom €133

Flights to London Gatwick Airportfrom €40

Flights to London Southend Airportfrom €182

Flights to London Stansted Airportfrom €33

Flights to London Luton Airportfrom €37

Flights to Glasgow Intl Airportfrom €37

Flights to Belfast Intl Airportfrom €111

Flights to Belfast City Airportfrom €147

Cheap flights from Ireland to London from €41

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to London departing on 13/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Ireland to London

Recent return flight deals from Ireland to London

Recent one-way flight deals from Ireland to London

Recent last minute flight deals from Ireland to London

Recent direct flight deals from Ireland to London

British Airways flights from Ireland to London Heathrow Airport

Our best British Airways deals on Ireland to London Heathrow Airport flight tickets

Aer Lingus flights from Ireland to London Heathrow Airport

Our best Aer Lingus deals on Ireland to London Heathrow Airport flight tickets

momondo Fare Finder

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

See travel insights to London from

How to get the cheapest flight ticket from Ireland to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London Heathrow Airport?

The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Ireland averaging around €120.

What is the cheapest day to depart on your flight to London Heathrow Airport?

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

What is the cheapest Ireland to London Heathrow flight route?

Fly from Shannon to London Heathrow for the best Ireland - London Heathrow flight prices

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

What cabin class options are available on Ireland to London Heathrow flights?

There are 3 cabin classes available to choose from on Ireland to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Ireland to London Heathrow?

British Airways, Aer Lingus, and Scandinavian Airlines are the most popular carriers operating from Ireland to London Heathrow

How many flights depart from Ireland to London Heathrow Airport on average per day?

As of August 2025, there are 89 flights per day flying from Ireland to London Heathrow Airport. The most common time of day flights depart is 07:00, with 46% of flights taking off at midday.

How many flights depart from Ireland to London Heathrow Airport on average per week?

The number of flights available between Ireland and London Heathrow Airport is 625 per week as of August 2025. The most frequent departure day is Sun, with 17% of weekly flights leaving on this day.

How long does it take to fly to London Heathrow Airport?

Cheap Ireland to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to London Heathrow Airport

Best price found

Fastest flight time

Direct flights

When did momondo last update prices for flights from Ireland to London Heathrow Airport?

How many operators does momondo search for flights from Ireland to London Heathrow Airport?

How old do you have to be to fly from Ireland to London Heathrow Airport?

What documentation or ID do you need to fly to London Heathrow Airport?

What is the most popular plane model from Ireland to London Heathrow Airport?

Best airlines flying from Ireland to London Heathrow Airport

Compare and see reviews for airlines that fly from Ireland to London Heathrow Airport with momondo

Travelling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to London?

Can I find flights from Ireland to London with flexible booking policies on momondo?

How can momondo help me find flights from Ireland to London?

I’m not ready to book a flight from Ireland to London right now. Can momondo alert me if prices change?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo