C$ 552 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 22/5. 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, 0 bags

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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$ 826
Shannon
Shannon2 stopsC$ 1,299
Dublin
Dublin1 stopC$ 826
Shannon
Shannon2 stopsC$ 1,299

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

Sat, 23 May - Wed, 27 May
Air Canada Logo
12:20 p.m. - 8:15 a.m.
YXU
-
DUB
14h 55m
1 stop
Air Canada Logo
9:20 a.m. - 8:53 a.m.
DUB
-
YXU
28h 33m
1 stop
C$ 826Air Canada
Sat, 23 May - Wed, 27 May
Air Canada Logo
5:10 a.m. - 8:15 a.m.
YXU
-
DUB
22h 05m
1 stop
Air Canada Logo
9:20 a.m. - 9:38 p.m.
DUB
-
YXU
17h 18m
1 stop
C$ 827Air Canada
Sat, 23 May - Wed, 27 May
Air Canada Logo
5:10 a.m. - 11:10 a.m.
YXU
-
DUB
25h 00m
2 stops
Air Canada Logo
9:20 a.m. - 9:38 p.m.
DUB
-
YXU
17h 18m
1 stop
C$ 866Air Canada
Sun, 31 May - Thu, 4 Jun
Air Canada Logo
12:20 p.m. - 8:15 a.m.
YXU
-
DUB
14h 55m
1 stop
Air Canada Logo
9:20 a.m. - 2:58 p.m.
DUB
-
YXU
10h 38m
1 stop
C$ 879Air Canada
Sun, 31 May - Thu, 4 Jun
Air Canada Logo
12:20 p.m. - 8:15 a.m.
YXU
-
DUB
14h 55m
1 stop
Air Canada Logo
9:50 a.m. - 9:38 p.m.
DUB
-
YXU
16h 48m
2 stops
C$ 883Air Canada
Sun, 31 May - Thu, 4 Jun
Air Canada Logo
12:20 p.m. - 7:45 a.m.
YXU
-
DUB
14h 25m
2 stops
Air Canada Logo
9:20 a.m. - 5:33 p.m.
DUB
-
YXU
13h 13m
1 stop
C$ 887Air Canada
Sat, 22 Aug - Tue, 8 Sep
Air Canada Logo
12:20 p.m. - 8:15 a.m.
YXU
-
DUB
14h 55m
1 stop
Air Canada Logo
9:50 a.m. - 5:45 p.m.
DUB
-
YXU
12h 55m
1 stop
C$ 897Air Canada
Sat, 22 Aug - Tue, 8 Sep
Air Canada Logo
6:20 p.m. - 8:15 a.m.
YXU
-
DUB
8h 55m
1 stop
Air Canada Logo
9:20 a.m. - 9:40 p.m.
DUB
-
YXU
17h 20m
2 stops
C$ 901Air Canada
Sat, 23 May - Wed, 27 May
United Airlines Logo
5:10 a.m. - 10:40 a.m.
YXU
-
DUB
24h 30m
2 stops
United Airlines Logo
12:30 p.m. - 9:38 p.m.
DUB
-
YXU
14h 08m
2 stops
C$ 915United Airlines
Sat, 23 May - Wed, 27 May
United Airlines Logo
5:10 a.m. - 7:20 a.m.
YXU
-
DUB
21h 10m
2 stops
United Airlines Logo
8:50 a.m. - 9:38 p.m.
DUB
-
YXU
17h 48m
2 stops
C$ 916United Airlines
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$ 826) and United Airlines (C$ 2,100).

Find deals

Good to know

Cheapest flightC$ 552
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.

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 10915 reviews
6.8Entertainment
7.3Boarding
7.1Comfort
7.8Crew
6.3Food
Airline reviews

Rude flight attendants with poor service. Worst first class experience I’ve ever had.

4.0 OkayAnonymous, Apr 2026
YYZ - LIS
Read more Air Canada reviews

Rude flight attendants with poor service. Worst first class experience I’ve ever had.

The plane was very cramped to point there was no way not to touch person beside you and a stewardess screamed at my son when I touched her arm to get her attention to let her know she forgot to give him his dinner when she passed him and gave a dinner to passenger behind him. Very inappropriate response and She never came back to apologize and other stewardess said she was sorry “if I felt” she was inappropriate. Horrible experience and she should be reprimanded for her behavior

The seat design in the premium economy section leaves virtually no room under the seat to store a bag or purse. Other than that, it was a great flight. Arrived early.

Delayed by 5+ hours and they give a voucher for only $20 CAD which isn’t even redeemable at any place with edible food. Then took almost an hour to clean craft after it landed. And nonsensical boarding delayed even further. We didn’t leave until 1:30am….

The flight was delayed, but not for weather. We landed over 3hrs later than planned.

The stag were helpful, kind and liked the passengers. The plane was pristinely clean! Great flight!

My flight was delayed more than once, but Air Canada updated us regularly. Friends on other airlines had much worse experiences.

By modern air travel standards, our 15-hour flight to Delhi was very nice. Quiet-ish, straightforward, good service, okay seats, etc. All good.

Again, it was delayed and then our connecting aircraft was very cold.

It was very cold in the beginning; then I asked stewardess to do something about that, and she did something, so for the rest of the flight the temperature was closer to normal. It is typical: by some reason the pilots or whoever is in charge make the cod in the cabin unbearable. The seat is better than on WestJet or Flair, but is is very tight. No leg room.

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

Information on your arrival and departure airports

London (YXU)