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

The number of flights available between London and Ireland is 628 per week as of December 2025. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.

Which airline has the best punctuality record on London to Ireland flights?

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

How often are flights from London to Ireland delayed?

Historically, on average around 18% of flights between London and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 102 minutes.

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

The number of flights available between London and Ireland is 89 per day as of December 2025. The most frequent departure time is 09:00, with 41% of daily flights leaving at midday.

What is the most punctual flight time for London to Ireland flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

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

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

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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

Prices for flights from London to Ireland are updated daily.

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

There are 2 operators available for flights from London to Ireland as of December 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Ireland.

What documentation or ID do you need to fly to Ireland?

The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

€17 Cheap Flights from London to Ireland in 2025/26

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13:10 - 14:40LGW-SNN

1h 30mdirect

15:55 - 17:25SNN-LGW

1h 30mdirect

€36Ryanair

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Thu, 8 Jan - Sun, 11 Jan

17:50 - 19:20LGW-SNN

1h 30mdirect

11:15 - 12:45SNN-LGW

1h 30mdirect

€37Ryanair

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Mon, 19 Jan - Thu, 22 Jan

20:00 - 21:30LGW-SNN

1h 30mdirect

18:05 - 19:35SNN-LGW

1h 30mdirect

€39Ryanair

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Wed, 31 Dec - Wed, 7 Jan

17:50 - 19:20LGW-SNN

1h 30mdirect

15:55 - 17:25SNN-LGW

1h 30mdirect

€40Ryanair

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Mon, 5 Jan - Mon, 19 Jan

06:50 - 08:15LCY-DUB

1h 25mdirect

11:10 - 12:40DUB-LCY

1h 30mdirect

€66British Airways

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Fri, 6 Feb - Mon, 9 Feb

18:25 - 19:50LHR-DUB

1h 25mdirect

20:40 - 22:00DUB-LHR

1h 20mdirect

€67British Airways

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Sat, 24 Jan - Sun, 25 Jan

18:05 - 19:25LHR-SNN

1h 20mdirect

07:50 - 09:15SNN-LHR

1h 25mdirect

€113Aer Lingus

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Fri, 9 Jan - Sun, 25 Jan

06:50 - 13:20SEN-DUB

6h 30m1 stop

19:50 - 12:15DUB-SEN

16h 25m1 stop

€113Multiple Airlines

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Thu, 15 Jan - Sat, 17 Jan

10:00 - 11:30LHR-SNN

1h 30mdirect

20:05 - 21:25SNN-LHR

1h 20mdirect

€115Aer Lingus

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Sat, 3 Jan - Tue, 20 Jan

06:50 - 13:20SEN-DUB

6h 30m1 stop

19:50 - 12:15DUB-SEN

16h 25m1 stop

€130Multiple Airlines

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Thu, 15 Jan - Sat, 17 Jan

British Airways flights from London to Ireland

Our best British Airways deals on London to Ireland flight tickets

British Airways

22 Jan

LHR06:30London Heathrow

1h 25m

DUB07:55Dublin

25 Jan

DUB10:45Dublin

1h 35m

LHR12:20London Heathrow

€65

Find similar

British Airways

6 Feb

LCY06:50London City

1h 25m

DUB08:15Dublin

9 Feb

DUB11:10Dublin

1h 30m

LCY12:40London City

€66

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British Airways

8 Jan

LCY15:00London City

1h 20m

DUB16:20Dublin

11 Jan

DUB11:10Dublin

1h 30m

LCY12:40London City

€70

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Aer Lingus flights from London to Ireland

Our best Aer Lingus deals on London to Ireland flight tickets

Aer Lingus

27 Jan

LHR19:45London Heathrow

1h 20m

DUB21:05Dublin

29 Jan

DUB18:30Dublin

1h 20m

LHR19:50London Heathrow

€113

Find similar

Aer Lingus

3 Jan

LHR10:00London Heathrow

1h 30m

SNN11:30Shannon

20 Jan

SNN20:05Shannon

1h 20m

LHR21:25London Heathrow

€115

Find similar

Aer Lingus

17 Jan

LHR10:00London Heathrow

1h 30m

SNN11:30Shannon

24 Jan

SNN07:50Shannon

1h 25m

LHR09:15London Heathrow

€115

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Fly from

Fly to

Route

Depart

Return

Price

LondonShannon

LGW - SNN

LGWSNN

London Gatwick

Thu 8/1

13:10-14:40

Nonstop1h 30m

Shannon

Sun 11/1

15:55-17:25

Nonstop1h 30m

€36

LondonShannon

LGW - SNN

LGWSNN

London Gatwick

Mon 19/1

17:50-19:20

Nonstop1h 30m

Shannon

Thu 22/1

11:15-12:45

Nonstop1h 30m

€37

LondonShannon

LGW - SNN

LGWSNN

London Gatwick

Wed 31/12

20:00-21:30

Nonstop1h 30m

Shannon

Wed 7/1

18:05-19:35

Nonstop1h 30m

€39

LondonShannon

LGW - SNN

LGWSNN

London Gatwick

Mon 5/1

17:50-19:20

Nonstop1h 30m

Shannon

Mon 19/1

15:55-17:25

Nonstop1h 30m

€40

LondonDublin

LCY - DUB

LCYDUB

London City

Fri 6/2

06:50-08:15

Nonstop1h 25m

Dublin

Mon 9/2

11:10-12:40

Nonstop1h 30m

€66

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 24/1

18:25-19:50

Nonstop1h 25m

Dublin

Sun 25/1

20:40-22:00

Nonstop1h 20m

€67

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 9/1

18:05-19:25

Nonstop1h 20m

Shannon

Sun 25/1

07:50-09:15

Nonstop1h 25m

€113

LondonDublin

SEN - DUB

SENDUB

London Southend

Thu 15/1

06:50-13:20

1 stop6h 30m

Dublin

Sat 17/1

19:50-12:15

1 stop16h 25m

€113

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sat 3/1

10:00-11:30

Nonstop1h 30m

Shannon

Tue 20/1

20:05-21:25

Nonstop1h 20m

€115

LondonDublin

SEN - DUB

SENDUB

London Southend

Thu 15/1

06:50-13:20

1 stop6h 30m

Dublin

Sat 17/1

19:50-12:15

1 stop16h 25m

€130

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How to get the cheapest flight ticket from London to Ireland

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

Delays

Other information

What is the cheapest month to fly to Ireland?

The month of September is another great option to travel to Ireland, with average flight prices from London averaging around €62.

What is the cheapest day to depart on your flight to Ireland?

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as €131. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around €262. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

What is the cheapest time of day to depart on your flight to Ireland?

In the afternoon is the cheapest time of day to fly from London to Ireland when you can find flight prices for as low as €155. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is at midday when prices are around €289.

What is the cheapest London to Ireland flight route?

Fly from London Stansted to Dublin for the best London - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €147 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from London for as low as €108 on momondo.

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

There are 2 cabin classes available to choose from on London to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap London to Ireland flight deals and tips

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

Best price found	€46
Fastest flight time	1h 15m
Direct flights	Every day
Airports in Ireland	1 airport

The best one-way flight to Ireland from London in the past 72 hours is €46. The best return flight deal from London to Ireland found on momondo in the last 72 hours is €167.

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

Direct flights go from London to Ireland every day.

There is 1 airport near Ireland: Dublin (DUB)

Search flight deals

When did momondo last update prices for flights from London to Ireland?
Prices for flights from London to Ireland are updated daily.
How many operators does momondo search for flights from London to Ireland?
There are 2 operators available for flights from London to Ireland as of December 2025.
How old do you have to be to fly from London to Ireland?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Ireland.
What documentation or ID do you need to fly to Ireland?
The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Ireland?
Based on momondo bookings for flights between London and Ireland, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 20.51% of the total bookings. Other popular models include Boeing 737 MAX 8 with 16.36%, Airbus A320neo with 11.09%, and Boeing 787-9 Dreamliner with 7.97%.

Best airlines flying from London to Ireland

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

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom €79	Free Cancellation	Rating 7.2 1,384 reviews		Search Aer Lingus flights
British Airways	PriceFrom €95	Free Cancellation	Rating 6.7 7,549 reviews		Search British Airways flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Ireland for you.

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

Flights from London to Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ireland from London.

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

If you are not ready to book a flight from London to Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ireland and let you know when they change.

An easier way to manage your Ireland 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.

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Find better results for your trip to Ireland

Popular Cities in Ireland

Flights to Dublinfrom €39

Flights to Corkfrom €93

Flights to Shannon, Clarefrom €102

Flights to Donegalfrom €75

Flights to Milltown (Kerry)from €39

Cheap flights from London to Ireland from €17

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Ireland departing on 15/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names, great deals

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Filter for what you want

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Find the cheapest flights from London to Ireland

Cheap return flights

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British Airways flights from London to Ireland

Our best British Airways deals on London to Ireland flight tickets

Aer Lingus flights from London to Ireland

Our best Aer Lingus deals on London to Ireland flight tickets

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

See travel insights to Ireland from

How to get the cheapest flight ticket from London to Ireland

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 Ireland?

The month of September is another great option to travel to Ireland, with average flight prices from London averaging around €62.

What is the cheapest day to depart on your flight to Ireland?

What is the cheapest time of day to depart on your flight to Ireland?

What is the cheapest London to Ireland flight route?

Fly from London Stansted to Dublin for the best London - Ireland flight prices

How far in advance should I book a flight to Ireland?

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

There are 2 cabin classes available to choose from on London to Ireland 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 London to Ireland?

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

How often are flights from London to Ireland delayed?

Historically, on average around 18% of flights between London and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 102 minutes.

What is the most punctual flight time for London to Ireland flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to Ireland flights?

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

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

The number of flights available between London and Ireland is 89 per day as of December 2025. The most frequent departure time is 09:00, with 41% of daily flights leaving at midday.

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

The number of flights available between London and Ireland is 628 per week as of December 2025. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.

Cheap London to Ireland flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in Ireland

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

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

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

What documentation or ID do you need to fly to Ireland?

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

Best airlines flying from London to Ireland

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

Why use momondo?

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

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

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

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

An easier way to manage your Ireland 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 Ireland

Popular Cities in Ireland

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