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Cheap flights from Ireland to London from €16

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 18/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ireland to London

Recent return flight deals from Ireland to London

Enter your travel dates to find the best prices.
Ryanair Logo
07:50 - 09:15ORK-STN
1h 25mdirect
Ryanair Logo
05:55 - 07:20STN-ORK
1h 25mdirect
€33Ryanair
Find Deal
Mon, 1 Dec - Wed, 3 Dec
Ryanair Logo
22:20 - 23:45ORK-STN
1h 25mdirect
Ryanair Logo
06:00 - 07:25STN-ORK
1h 25mdirect
€44Ryanair
Find Deal
Fri, 5 Dec - Mon, 8 Dec
Multiple Airlines Logo
17:00 - 18:20DUB-STN
1h 20mdirect
Multiple Airlines Logo
06:30 - 07:50STN-DUB
1h 20mdirect
€45Multiple Airlines
Find Deal
Sat, 6 Dec - Mon, 8 Dec
Multiple Airlines Logo
17:00 - 18:20DUB-STN
1h 20mdirect
Multiple Airlines Logo
06:30 - 07:50STN-DUB
1h 20mdirect
€46Multiple Airlines
Find Deal
Sat, 6 Dec - Mon, 8 Dec
Ryanair Logo
06:40 - 08:10DUB-LGW
1h 30mdirect
Ryanair Logo
09:40 - 11:05LGW-DUB
1h 25mdirect
€46Ryanair
Find Deal
Thu, 4 Dec - Mon, 8 Dec
British Airways Logo
20:40 - 22:00DUB-LHR
1h 20mdirect
British Airways Logo
06:30 - 07:55LHR-DUB
1h 25mdirect
€75British Airways
Find Deal
Mon, 12 Jan - Thu, 15 Jan
British Airways Logo
20:40 - 22:00DUB-LHR
1h 20mdirect
British Airways Logo
15:30 - 17:00LHR-DUB
1h 30mdirect
€77British Airways
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Tue, 13 Jan - Sat, 17 Jan
Aer Lingus Logo
20:05 - 21:25SNN-LHR
1h 20mdirect
Aer Lingus Logo
15:15 - 16:45LHR-SNN
1h 30mdirect
€109Aer Lingus
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Thu, 4 Dec - Mon, 8 Dec
Aer Lingus Logo
17:25 - 18:50SNN-LHR
1h 25mdirect
Aer Lingus Logo
10:00 - 11:30LHR-SNN
1h 30mdirect
€110Aer Lingus
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Sat, 22 Nov - Sun, 23 Nov
Lufthansa Logo
17:00 - 22:10ORK-LHR
5h 10m1 stop
Lufthansa Logo
11:30 - 16:15LHR-ORK
4h 45m1 stop
€200Lufthansa
Find Deal
Thu, 16 Apr - Sun, 19 Apr

British Airways flights from Ireland to London

Our best British Airways deals on Ireland to London flight tickets
British Airways
12 Jan
DUB20:40Dublin
1h 20m
LHR22:00London Heathrow
15 Jan
LHR06:30London Heathrow
1h 25m
DUB07:55Dublin
€75
Find similar
British Airways
13 Jan
DUB20:40Dublin
1h 20m
LHR22:00London Heathrow
17 Jan
LHR15:30London Heathrow
1h 30m
DUB17:00Dublin
€77
Find similar
British Airways
20 Jan
DUB18:00Dublin
1h 20m
LHR19:20London Heathrow
27 Jan
LHR18:15London Heathrow
1h 25m
DUB19:40Dublin
€80
Find similar

Lufthansa flights from Ireland to London

Our best Lufthansa deals on Ireland to London flight tickets
Lufthansa
16 Apr
ORK17:00Cork
5h 10m
1 stop
LHR22:10London Heathrow
19 Apr
LHR11:30London Heathrow
4h 45m
1 stop
ORK16:15Cork
€200
Find similar
Lufthansa
21 Nov
DUB09:25Dublin
7h 15m
1 stop
LCY16:40London City
24 Nov
LCY09:50London City
6h 35m
1 stop
DUB16:25Dublin
€258
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momondo Fare Finder

 
Customise your flight search to find flights from Ireland to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 11 November 2025.
Use the filters below to find and compare flights from Ireland to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CorkLondon

ORK - STN

ORKSTN

Cork

Mon 1/12

07:50-09:15

Nonstop1h 25m

London Stansted

Wed 3/12

05:55-07:20

Nonstop1h 25m

€33

CorkLondon

ORK - STN

ORKSTN

Cork

Fri 5/12

22:20-23:45

Nonstop1h 25m

London Stansted

Mon 8/12

06:00-07:25

Nonstop1h 25m

€44

DublinLondon

DUB - STN

DUBSTN

Dublin

Sat 6/12

17:00-18:20

Nonstop1h 20m

London Stansted

Mon 8/12

06:30-07:50

Nonstop1h 20m

€45

DublinLondon

DUB - STN

DUBSTN

Dublin

Sat 6/12

17:00-18:20

Nonstop1h 20m

London Stansted

Mon 8/12

06:30-07:50

Nonstop1h 20m

€46

DublinLondon

DUB - LGW

DUBLGW

Dublin

Thu 4/12

06:40-08:10

Nonstop1h 30m

London Gatwick

Mon 8/12

09:40-11:05

Nonstop1h 25m

€46

DublinLondon

DUB - LHR

DUBLHR

Dublin

Mon 12/1

20:40-22:00

Nonstop1h 20m

London Heathrow

Thu 15/1

06:30-07:55

Nonstop1h 25m

€75

DublinLondon

DUB - LHR

DUBLHR

Dublin

Tue 13/1

20:40-22:00

Nonstop1h 20m

London Heathrow

Sat 17/1

15:30-17:00

Nonstop1h 30m

€77

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 4/12

20:05-21:25

Nonstop1h 20m

London Heathrow

Mon 8/12

15:15-16:45

Nonstop1h 30m

€109

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 22/11

17:25-18:50

Nonstop1h 25m

London Heathrow

Sun 23/11

10:00-11:30

Nonstop1h 30m

€110

CorkLondon

ORK - LHR

ORKLHR

Cork

Thu 16/4

17:00-22:10

1 stop5h 10m

London Heathrow

Sun 19/4

11:30-16:15

1 stop4h 45m

€200

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to London from

How to get the cheapest flight ticket from Ireland to London

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?

In general, January is the cheapest month to fly from Ireland to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €66. If you are unable to visit London during the month of January, then departing from Ireland during the month September is also very affordable. Most momondo users find prices during this month for around €74.

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

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as €311. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to London for around €684.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as €195. In contrast, the most expensive time of day to depart to London is in the afternoon when prices are around €774.

What is the cheapest Ireland to London flight route?

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

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

You are more likely to see cheaper flights to London from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around €143 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Ireland for as low as €106 on momondo.

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

There are 3 cabin classes available to choose from on Ireland to London 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 Ireland to London flights?

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

Cheap Ireland to London flight deals and tips

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

Best price found

€74

Fastest flight time

1h 15m

Direct flights

Every day

Airports in London

1 airport
The best one-way flight to London from Ireland in the past 72 hours is €74. The best return flight deal from Ireland to London found on momondo in the last 72 hours is €61.
The fastest flight from Ireland to London takes 1h 15m
Direct flights go from Ireland to London every day.
There is 1 airport near London: London Luton (LTN)
Search flight deals

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

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

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

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

    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.

  • What documentation or ID do you need to fly to London?

    The required travel and health documents for your London 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. 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?

Best airlines flying from Ireland to London

Compare and see reviews for airlines that fly from Ireland to London with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom €84Free CancellationRating
6.7
7,511 reviews
Search British Airways flights
Aer LingusPriceFrom €84Free CancellationRating
7.2
1,368 reviews
Search Aer Lingus flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Croydon
Southend-on-Sea
Watford
Gatwick
Surbiton
Luton
Chichester
Bishop's Stortford
Chelmsford
Milton Keynes
Aylesbury
St. Albans
Stansted
Ilford
Dorking
High Wycombe
Abingdon
Dartford
Maidstone
Eastbourne

Why use momondo?

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

Finding the right flight to London from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Flights from Ireland to London 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 Ireland to London?

momondo provides multiple filters to help you find the best flight to London from Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to London from Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 57.3 km from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport