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 637 per week as of October 2025. The most frequent departure day is Tue, with 20% of weekly flights leaving on this day.

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 October 2025. The most frequent departure time is 09:00, with 40% of daily flights leaving at midday.

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 October 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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One-way

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11:15 - 12:40LGW-DUB

1h 25mdirect

15:50 - 17:15DUB-LGW

1h 25mdirect

€39Ryanair

Find Deal

Wed, 26 Nov - Wed, 3 Dec

06:40 - 08:05STN-ORK

1h 25mdirect

08:40 - 10:05ORK-STN

1h 25mdirect

€39Ryanair

Find Deal

Thu, 4 Dec - Sun, 7 Dec

06:30 - 07:50STN-DUB

1h 20mdirect

18:45 - 20:05DUB-STN

1h 20mdirect

€46Multiple Airlines

Find Deal

Fri, 7 Nov - Sat, 8 Nov

05:55 - 07:20STN-ORK

1h 25mdirect

18:30 - 19:55ORK-STN

1h 25mdirect

€47Multiple Airlines

Find Deal

Tue, 25 Nov - Thu, 27 Nov

06:30 - 07:50STN-DUB

1h 20mdirect

08:30 - 09:50DUB-STN

1h 20mdirect

€52Ryanair

Find Deal

Fri, 7 Nov - Mon, 10 Nov

06:30 - 07:50STN-DUB

1h 20mdirect

08:30 - 09:50DUB-STN

1h 20mdirect

€66Ryanair

Find Deal

Fri, 12 Dec - Mon, 15 Dec

15:20 - 16:50LHR-DUB

1h 30mdirect

08:55 - 10:30DUB-LHR

1h 35mdirect

€77British Airways

Find Deal

Mon, 12 Jan - Sat, 17 Jan

15:30 - 17:00LHR-DUB

1h 30mdirect

10:45 - 12:20DUB-LHR

1h 35mdirect

€78British Airways

Find Deal

Sat, 13 Dec - Sun, 14 Dec

22:05 - 23:25LHR-ORK

1h 20mdirect

17:35 - 18:50ORK-LHR

1h 15mdirect

€105Aer Lingus

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Wed, 10 Dec - Wed, 17 Dec

22:05 - 23:25LHR-ORK

1h 20mdirect

17:35 - 18:50ORK-LHR

1h 15mdirect

€106Aer Lingus

Find Deal

Thu, 11 Dec - Thu, 18 Dec

Ryanair flights from London to Ireland

Our best Ryanair deals on London to Ireland flight tickets

Ryanair

26 Nov

LGW11:15London Gatwick

1h 25m

DUB12:40Dublin

3 Dec

DUB15:50Dublin

1h 25m

LGW17:15London Gatwick

€39

Find similar

Ryanair

28 Nov

LGW21:35London Gatwick

1h 25m

DUB23:00Dublin

29 Nov

DUB17:05Dublin

1h 25m

LGW18:30London Gatwick

€39

Find similar

Ryanair

9 Dec

LGW17:45London Gatwick

1h 25m

DUB19:10Dublin

11 Dec

DUB06:40Dublin

1h 30m

LGW08:10London Gatwick

€40

Find similar

British Airways flights from London to Ireland

Our best British Airways deals on London to Ireland flight tickets

British Airways

12 Jan

LHR15:20London Heathrow

1h 30m

DUB16:50Dublin

17 Jan

DUB08:55Dublin

1h 35m

LHR10:30London Heathrow

€77

Find similar

British Airways

13 Dec

LHR15:30London Heathrow

1h 30m

DUB17:00Dublin

14 Dec

DUB10:45Dublin

1h 35m

LHR12:20London Heathrow

€78

Find similar

British Airways

11 Dec

LHR18:20London Heathrow

1h 25m

DUB19:45Dublin

14 Dec

DUB10:45Dublin

1h 35m

LHR12:20London Heathrow

€79

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonDublin

LGW - DUB

LGWDUB

London Gatwick

Wed 26/11

11:15-12:40

Nonstop1h 25m

Dublin

Wed 3/12

15:50-17:15

Nonstop1h 25m

€39

LondonCork

STN - ORK

STNORK

London Stansted

Thu 4/12

06:40-08:05

Nonstop1h 25m

Cork

Sun 7/12

08:40-10:05

Nonstop1h 25m

€39

LondonDublin

STN - DUB

STNDUB

London Stansted

Fri 7/11

06:30-07:50

Nonstop1h 20m

Dublin

Sat 8/11

18:45-20:05

Nonstop1h 20m

€46

LondonCork

STN - ORK

STNORK

London Stansted

Tue 25/11

05:55-07:20

Nonstop1h 25m

Cork

Thu 27/11

18:30-19:55

Nonstop1h 25m

€47

LondonDublin

STN - DUB

STNDUB

London Stansted

Fri 7/11

06:30-07:50

Nonstop1h 20m

Dublin

Mon 10/11

08:30-09:50

Nonstop1h 20m

€52

LondonDublin

STN - DUB

STNDUB

London Stansted

Fri 12/12

06:30-07:50

Nonstop1h 20m

Dublin

Mon 15/12

08:30-09:50

Nonstop1h 20m

€66

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 12/1

15:20-16:50

Nonstop1h 30m

Dublin

Sat 17/1

08:55-10:30

Nonstop1h 35m

€77

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 13/12

15:30-17:00

Nonstop1h 30m

Dublin

Sun 14/12

10:45-12:20

Nonstop1h 35m

€78

LondonCork

LHR - ORK

LHRORK

London Heathrow

Wed 10/12

22:05-23:25

Nonstop1h 20m

Cork

Wed 17/12

17:35-18:50

Nonstop1h 15m

€105

LondonCork

LHR - ORK

LHRORK

London Heathrow

Thu 11/12

22:05-23:25

Nonstop1h 20m

Cork

Thu 18/12

17:35-18:50

Nonstop1h 15m

€106

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 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 Monday when prices can be found for as low as €125. 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 Wednesday because tickets tend to average around €192. 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 €144. 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 €288.

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 €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 €109 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	€55
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 €55. The best return flight deal from London to Ireland found on momondo in the last 72 hours is €284.

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 October 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 20.93% of the total bookings. Other popular models include Boeing 737 MAX 8 with 16.63%, Airbus A320neo with 12.24%, and Boeing 787-9 Dreamliner with 7.39%.

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 €78	Free Cancellation	Rating 7.2 1,361 reviews		Search Aer Lingus flights
British Airways	PriceFrom €94	Free Cancellation	Rating 6.7 7,483 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.

Start using Trips

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Find better results for your trip to Ireland

Popular Cities in Ireland

Flights to Dublinfrom €39

Flights to Corkfrom €106

Flights to Shannon, Clarefrom €104

Flights to Donegalfrom €77

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 3/11. 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 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 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 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 is the most popular carrier operating from London to Ireland

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 October 2025. The most frequent departure time is 09:00, with 40% 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 October 2025. The most frequent departure day is Tue, with 20% 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