C$ 317 Find Cheap Flights from London to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Ireland departing on 22/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Ireland

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Best Ireland Flight Deals from London

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stopC$ 765
Dublin
Dublin1 stopC$ 765

Cheap Flights from London to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Ireland

Tue, 28 Oct - Tue, 4 Nov
Logo
9:25 a.m. - 6:10 a.m.YXU-DUB
16h 45m1 stop
Logo
5:00 a.m. - 5:05 p.m.DUB-YXU
17h 05m2 stops
C$ 765
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Air Canada Logo
9:25 a.m. - 7:30 a.m.YXU-DUB
18h 05m2 stops
Air Canada Logo
9:00 a.m. - 5:05 p.m.DUB-YXU
13h 05m1 stop
C$ 778Air Canada
Find Deal
Tue, 28 Oct - Tue, 4 Nov
United Airlines Logo
5:40 p.m. - 10:20 a.m.YXU-DUB
12h 40m2 stops
United Airlines Logo
1:35 p.m. - 5:05 p.m.DUB-YXU
32h 30m2 stops
C$ 810United Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Logo
5:40 p.m. - 10:20 a.m.YXU-DUB
12h 40m2 stops
Logo
9:30 a.m. - 9:21 p.m.DUB-YXU
16h 51m3 stops
C$ 1,236
Find Deal
Tue, 28 Oct - Tue, 4 Nov
Logo
5:40 p.m. - 9:55 a.m.YXU-DUB
12h 15m2 stops
Logo
9:30 a.m. - 9:21 p.m.DUB-YXU
16h 51m3 stops
C$ 1,246
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Logo
9:25 a.m. - 5:15 a.m.YXU-DUB
15h 50m1 stop
Logo
1:00 p.m. - 8:46 a.m.DUB-YXU
24h 46m1 stop
C$ 1,399
Find Deal
Booking Insights

KAYAK's insights & trends for London to Ireland flights

Get data-powered insights and trends into flights from London to Ireland to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from London to Ireland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from London to Ireland were found on Air Canada (C$ 778) and United Airlines (C$ 810).

Find deals

Good to know

Low seasonNovember
Cheapest flightC$ 317
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from London to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from London to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from London to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally in the evening, when round-trip flights cost C$ 650 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is C$ 735.

Reviews of the top airline flying from London to Ireland

 
Need help choosing which airline to fly with from London to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 10000 reviews
7.8Crew
7.1Comfort
6.8Entertainment
7.3Boarding
6.3Food
Airline reviews

The crew were fabulous. The flight was bumpy and I always like the captain to tell me what that is about or my imagination gets carries away.

8.0 ExcellentChristiane, Sep 2025YYZ - YDF
Read more Air Canada reviews

The crew were fabulous. The flight was bumpy and I always like the captain to tell me what that is about or my imagination gets carries away.

I liked the behaviour of the crew members.The flight was good.

Food can be better. Taste and option, the pasta wasn't the greatest.

The internet connection was perfect, and the updated entertainment systems that allow me to connect my Bluetooth earbuds was excellent

Flight was fine and on time. But no entertainment system and little leg room.

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

After a long flight from Tokyo, our connecting flight home was canceled due to “maintenance” while we were on our layover in Toronto. Very frustrating to close out our honeymoon, although I’m sure others had it even worse during last week’s strike. Air Canada staff at Pearson Airport are the one thing that kept me remotely at peace during this — they were very helpful and deserve a lot of props. But I would not fly Air Canada again.

It was good to receive a card for my birthday

Horrible flight cancelled had to buy another very expensive ticket

Everything you need to know for your flight from London to Ireland

Information on your arrival and departure airports

London (YXU)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.