Which airlines fly to Ireland?

Ryanair, British Airways and Aer Lingus are the top three most popular airlines that fly to Ireland from London according to our data. Ryanair is the first choice among our users, with 69% of people opting to fly with this airline when travelling to Ireland. Keep in mind that there are 4 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

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

Ryanair is the most popular carrier operating from London to Ireland

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

The number of flights available between London and Ireland is 697 per week as of August 2025. The most frequent departure day is Fri, with 19% of weekly flights leaving on this day.

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

99 flights are operational daily from London to Ireland as of August 2025. The most popular departure time for this route is 09:00, with 37% of flights per day taking off at midday.

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

Prices for flights from London to Ireland are refreshed on a daily basis.

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

As of August 2025, there are 4 operators available to choose from for flights from London to Ireland.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Ireland.

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

The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£14 Cheap Flights from London to Ireland in 2025

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Find the cheapest flights from London to Ireland

Round-trip

One-way

Last minute

Direct

Cheap return flights

22:35 - 23:55STN-DUB

1h 20mdirect

07:35 - 08:55DUB-STN

1h 20mdirect

£28Ryanair

Find Deal

Tue, 26 Aug - Thu, 28 Aug

22:35 - 23:55STN-DUB

1h 20mdirect

06:30 - 07:50DUB-STN

1h 20mdirect

£29Ryanair

Find Deal

Tue, 19 Aug - Wed, 20 Aug

11:35 - 13:00STN-ORK

1h 25mdirect

20:55 - 22:20ORK-STN

1h 25mdirect

£38

Find Deal

Tue, 2 Sep - Thu, 4 Sep

11:35 - 13:00STN-ORK

1h 25mdirect

20:55 - 22:20ORK-STN

1h 25mdirect

£39

Find Deal

Tue, 2 Sep - Thu, 4 Sep

16:50 - 18:20LHR-DUB

1h 30mdirect

10:50 - 12:30DUB-LHR

1h 40mdirect

£73British Airways

Find Deal

Tue, 23 Sep - Wed, 24 Sep

15:30 - 17:00LHR-DUB

1h 30mdirect

13:10 - 14:35DUB-LHR

1h 25mdirect

£77British Airways

Find Deal

Wed, 28 Jan - Wed, 11 Feb

22:25 - 23:45LHR-ORK

1h 20mdirect

20:30 - 21:45ORK-LHR

1h 15mdirect

£89Aer Lingus

Find Deal

Wed, 3 Sep - Wed, 24 Sep

14:40 - 16:10LHR-SNN

1h 30mdirect

21:15 - 22:40SNN-LHR

1h 25mdirect

£91Aer Lingus

Find Deal

Wed, 24 Sep - Thu, 2 Oct

08:40 - 22:25LCY-ORK

13h 45m1 stop

15:25 - 17:20ORK-LCY

25h 55m2 stops

£270KLM

Find Deal

Sat, 20 Sep - Mon, 22 Sep

17:10 - 16:35LCY-ORK

23h 25m1 stop

06:00 - 07:15ORK-LCY

25h 15m1 stop

£274KLM

Find Deal

Fri, 3 Oct - Sun, 5 Oct

Ryanair flights from London to Ireland

Our best Ryanair deals on London to Ireland flight tickets

Ryanair

26 Aug

STN22:35London Stansted

1h 20m

DUB23:55Dublin

28 Aug

DUB07:35Dublin

1h 20m

STN08:55London Stansted

£28

Find similar

Ryanair

19 Aug

STN22:35London Stansted

1h 20m

DUB23:55Dublin

20 Aug

DUB06:30Dublin

1h 20m

STN07:50London Stansted

£29

Find similar

Ryanair

19 Aug

STN22:35London Stansted

1h 20m

DUB23:55Dublin

20 Aug

DUB06:30Dublin

1h 20m

STN07:50London Stansted

£29

Find similar

British Airways flights from London to Ireland

Our best British Airways deals on London to Ireland flight tickets

British Airways

23 Sept

LHR16:50London Heathrow

1h 30m

DUB18:20Dublin

24 Sept

DUB10:50Dublin

1h 40m

LHR12:30London Heathrow

£73

Find similar

British Airways

28 Jan

LHR15:30London Heathrow

1h 30m

DUB17:00Dublin

11 Feb

DUB13:10Dublin

1h 25m

LHR14:35London Heathrow

£77

Find similar

British Airways

23 Sept

LHR16:50London Heathrow

1h 30m

DUB18:20Dublin

24 Sept

DUB10:55Dublin

1h 35m

LHR12:30London Heathrow

£79

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonDublin

STN - DUB

STNDUB

London Stansted

Tue 26/8

22:35-23:55

Nonstop1h 20m

Dublin

Thu 28/8

07:35-08:55

Nonstop1h 20m

£28

LondonDublin

STN - DUB

STNDUB

London Stansted

Tue 19/8

22:35-23:55

Nonstop1h 20m

Dublin

Wed 20/8

06:30-07:50

Nonstop1h 20m

£29

LondonCork

STN - ORK

STNORK

London Stansted

Tue 2/9

11:35-13:00

Nonstop1h 25m

Cork

Thu 4/9

20:55-22:20

Nonstop1h 25m

£38

LondonCork

STN - ORK

STNORK

London Stansted

Tue 2/9

11:35-13:00

Nonstop1h 25m

Cork

Thu 4/9

20:55-22:20

Nonstop1h 25m

£39

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 23/9

16:50-18:20

Nonstop1h 30m

Dublin

Wed 24/9

10:50-12:30

Nonstop1h 40m

£73

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 28/1

15:30-17:00

Nonstop1h 30m

Dublin

Wed 11/2

13:10-14:35

Nonstop1h 25m

£77

LondonCork

LHR - ORK

LHRORK

London Heathrow

Wed 3/9

22:25-23:45

Nonstop1h 20m

Cork

Wed 24/9

20:30-21:45

Nonstop1h 15m

£89

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Wed 24/9

14:40-16:10

Nonstop1h 30m

Shannon

Thu 2/10

21:15-22:40

Nonstop1h 25m

£91

LondonCork

LCY - ORK

LCYORK

London City

Sat 20/9

08:40-22:25

1 stop13h 45m

Cork

Mon 22/9

15:25-17:20

2 stops25h 55m

£270

LondonCork

LCY - ORK

LCYORK

London City

Fri 3/10

17:10-16:35

1 stop23h 25m

Cork

Sun 5/10

06:00-07:15

1 stop25h 15m

£274

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 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

Other information

What is the cheapest month to fly to Ireland?

The month of September is, on average, the cheapest month to fly to Ireland from London, with most prices found around £50. If you’re not able to fly to Ireland in September, then January is your next best option. Flight prices from London to Ireland during January average around £51.

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 Friday when prices can be found for as low as £210. This is often the case because there is less demand to fly during this day of the week. Flights from London to Ireland on a Monday will generally be more expensive and average around £530. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 £137. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Ireland are more costly in the morning, with an average ticket price of £516. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London to Ireland flight route?

Fly from London Stansted to Knock Intl 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 £123 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 £92 on momondo.

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

There are 3 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.

Can stopping save me money on London to Ireland flights?

No. A direct flight is the cheapest option for a flight between London to Ireland.

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	£14
Fastest flight time	1h 15m
Direct flights	Every day
Airports in Ireland	3 airports

The best one-way flight to Ireland from London in the past 72 hours is £14. The best return flight deal from London to Ireland found on momondo in the last 72 hours is £28.

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

Direct flights go from London to Ireland every day.

There are 3 airports near Ireland: Dublin (DUB), Milltown (Kerry) Kerry (KIR), Cork (ORK)

Search flight deals

When did momondo last update prices for flights from London to Ireland?
Prices for flights from London to Ireland are refreshed on a daily basis.
How many operators does momondo search for flights from London to Ireland?
As of August 2025, there are 4 operators available to choose from for flights from London to Ireland.
How old do you have to be to fly from London to Ireland?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Ireland.
What documentation or ID do you need to fly to Ireland?
The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London to Ireland?
momondo data reveals that the most frequently booked plane model on the route from London to Ireland is Boeing 737-800 Passenger/BBJ2 (winglets), representing 23.21% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 18.11%, Airbus A320neo at 12.98%, and Airbus A321neo at 5.47%.

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
Ryanair	PriceFrom £23	Free Cancellation	Rating 6.8 5,154 reviews	Search Ryanair flights
British Airways	PriceFrom £65	Free Cancellation	Rating 6.6 7,222 reviews	Search British Airways flights
Aer Lingus	PriceFrom £69	Free Cancellation	Rating 7.1 1,192 reviews	Search Aer Lingus flights
KLM	PriceFrom £137	Free Cancellation	Rating 7.8 1,383 reviews	Search KLM flights

Why use momondo?

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

It is quick and easy to find London to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits 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?

momondo helps you find the best flight between London and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Ireland, momondo offers a useful price alert feature which will track prices for flights to Ireland from London and alert you 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.

Start using Trips

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Find better results for your trip to Ireland

Popular Cities in Ireland

Flights to Dublinfrom £23

Flights to Corkfrom £31

Flights to Shannon, Clarefrom £28

Flights to Knockfrom £32

Flights to Milltown (Kerry)from £38

Flights to Donegalfrom £120

Cheap flights from London to Ireland from £14

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 23/9. 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 London to Ireland

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Ryanair flights from London to Ireland

Our best Ryanair deals on London to Ireland flight tickets

British Airways flights from London to Ireland

Our best British Airways deals on London to Ireland flight tickets

momondo Fare Finder

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, on average, the cheapest month to fly to Ireland from London, with most prices found around £50. If you’re not able to fly to Ireland in September, then January is your next best option. Flight prices from London to Ireland during January average around £51.

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 Knock Intl 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 3 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.

Can stopping save me money on London to Ireland flights?

No. A direct flight is the cheapest option for a flight between London to Ireland.

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

Ryanair is the most popular carrier operating from London to Ireland

Which airlines fly to Ireland?

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

99 flights are operational daily from London to Ireland as of August 2025. The most popular departure time for this route is 09:00, with 37% of flights per day taking off at midday.

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

The number of flights available between London and Ireland is 697 per week as of August 2025. The most frequent departure day is Fri, with 19% 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