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

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

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.

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.

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 91 per day as of December 2025. The most frequent departure time is 09:00, with 39% 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.

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

The number of flights available between London and Ireland is 637 per week as of December 2025. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.

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 is 1 operator 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.

€20 Cheap Flights from London to Ireland in 2025/26

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One-way

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Cheap return flights

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20:00 - 21:30

LGW

SNN

1h 30mdirect

18:05 - 19:35

SNN

LGW

1h 30mdirect

€39Ryanair

Wed, 28 Jan - Wed, 4 Feb

12:40 - 14:10

LGW

SNN

1h 30mdirect

15:55 - 17:25

SNN

LGW

1h 30mdirect

€40Ryanair

Tue, 6 Jan - Mon, 19 Jan

12:40 - 14:10

LGW

SNN

1h 30mdirect

10:45 - 12:15

SNN

LGW

1h 30mdirect

€41Ryanair

Tue, 6 Jan - Tue, 20 Jan

17:50 - 19:20

LGW

SNN

1h 30mdirect

11:15 - 12:45

SNN

LGW

1h 30mdirect

€42Ryanair

Mon, 5 Jan - Thu, 22 Jan

06:30 - 07:50

STN

DUB

1h 20mdirect

06:30 - 07:50

DUB

STN

1h 20mdirect

€46Multiple Airlines

Fri, 16 Jan - Sun, 18 Jan

15:30 - 17:00

LHR

DUB

1h 30mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

€76British Airways

Thu, 29 Jan - Thu, 5 Feb

06:30 - 07:55

LHR

DUB

1h 25mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

€79British Airways

Thu, 22 Jan - Tue, 3 Feb

18:05 - 19:25

LHR

SNN

1h 20mdirect

17:25 - 18:50

SNN

LHR

1h 25mdirect

€97Aer Lingus

Wed, 14 Jan - Sat, 24 Jan

15:15 - 16:45

LHR

SNN

1h 30mdirect

20:05 - 21:25

SNN

LHR

1h 20mdirect

€106Aer Lingus

Sun, 11 Jan - Sun, 18 Jan

07:10 - 14:10

SEN

DUB

7h 00m1 stop

08:55 - 22:45

DUB

SEN

13h 50m1 stop

€146Multiple Airlines

Sun, 25 Jan - Wed, 28 Jan

British Airways flights from London to Ireland

Our best British Airways deals on London to Ireland flight tickets

British Airways

29 Jan

LHR15:30London Heathrow

1h 30m

DUB17:00Dublin

5 Feb

DUB20:40Dublin

1h 20m

LHR22:00London Heathrow

€76

Find similar

British Airways

22 Jan

LHR06:30London Heathrow

1h 25m

DUB07:55Dublin

3 Feb

DUB20:40Dublin

1h 20m

LHR22:00London Heathrow

€79

Find similar

British Airways

2 Jan

LHR15:55London Heathrow

1h 30m

DUB17:25Dublin

22 Jan

DUB16:05Dublin

1h 25m

LHR17:30London Heathrow

€80

Find similar

Ryanair flights from London to Ireland

Our best Ryanair deals on London to Ireland flight tickets

Ryanair

28 Jan

LGW20:00London Gatwick

1h 30m

SNN21:30Shannon

4 Feb

SNN18:05Shannon

1h 30m

LGW19:35London Gatwick

€39

Find similar

Ryanair

6 Jan

LGW12:40London Gatwick

1h 30m

SNN14:10Shannon

19 Jan

SNN15:55Shannon

1h 30m

LGW17:25London Gatwick

€40

Find similar

Ryanair

6 Jan

LGW12:40London Gatwick

1h 30m

SNN14:10Shannon

20 Jan

SNN10:45Shannon

1h 30m

LGW12:15London Gatwick

€41

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonShannon

LGW - SNN

LGWSNN

London Gatwick

Wed 28/1

20:00-21:30

Nonstop1h 30m

Shannon

Wed 4/2

18:05-19:35

Nonstop1h 30m

€39

LondonShannon

LGW - SNN

LGWSNN

London Gatwick

Tue 6/1

12:40-14:10

Nonstop1h 30m

Shannon

Mon 19/1

15:55-17:25

Nonstop1h 30m

€40

LondonShannon

LGW - SNN

LGWSNN

London Gatwick

Tue 6/1

12:40-14:10

Nonstop1h 30m

Shannon

Tue 20/1

10:45-12:15

Nonstop1h 30m

€41

LondonShannon

LGW - SNN

LGWSNN

London Gatwick

Mon 5/1

17:50-19:20

Nonstop1h 30m

Shannon

Thu 22/1

11:15-12:45

Nonstop1h 30m

€42

LondonDublin

STN - DUB

STNDUB

London Stansted

Fri 16/1

06:30-07:50

Nonstop1h 20m

Dublin

Sun 18/1

06:30-07:50

Nonstop1h 20m

€46

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 29/1

15:30-17:00

Nonstop1h 30m

Dublin

Thu 5/2

20:40-22:00

Nonstop1h 20m

€76

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 22/1

06:30-07:55

Nonstop1h 25m

Dublin

Tue 3/2

20:40-22:00

Nonstop1h 20m

€79

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Wed 14/1

18:05-19:25

Nonstop1h 20m

Shannon

Sat 24/1

17:25-18:50

Nonstop1h 25m

€97

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sun 11/1

15:15-16:45

Nonstop1h 30m

Shannon

Sun 18/1

20:05-21:25

Nonstop1h 20m

€106

LondonDublin

SEN - DUB

SENDUB

London Southend

Sun 25/1

07:10-14:10

1 stop7h 00m

Dublin

Wed 28/1

08:55-22:45

1 stop13h 50m

€146

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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 €61.

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 €129. 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 €259. 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 €154. 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 in the morning when prices are around €164.

What is the cheapest London to Ireland flight route?

Fly from London Gatwick 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 €146 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	€35
Fastest flight time	1h 15m
Direct flights	Every day
Airports in Ireland	77 airports

The best one-way flight to Ireland from London in the past 72 hours is €35. The best return flight deal from London to Ireland found on momondo in the last 72 hours is €82.

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

Direct flights go from London to Ireland every day.

There are 77 airports in Ireland. From London there are direct flights to 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 is 1 operator 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 20.31% of the total bookings. Other popular models include Boeing 737 MAX 8 with 16.28%, Airbus A320neo with 11.11%, and Boeing 787-9 Dreamliner with 7.45%.

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
British Airways	PriceFrom €94	Free Cancellation	Rating 6.7 7,580 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 €88

Flights to Donegalfrom €74

Flights to Milltown (Kerry)from €39

Cheap flights from London to Ireland from €20

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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Find the cheapest flights from London to Ireland

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British Airways flights from London to Ireland

Our best British Airways deals on London to Ireland flight tickets

Ryanair flights from London to Ireland

Our best Ryanair 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

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 €61.

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 Gatwick 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, Aer Lingus, and British Airways 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 91 per day as of December 2025. The most frequent departure time is 09:00, with 39% 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 637 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