C$ 637 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 6/3. 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$ 722
Shannon
Shannon2 stopsC$ 1,319
Dublin
Dublin1 stopC$ 722
Shannon
Shannon2 stopsC$ 1,319

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

Thu, 5 Mar - Mon, 9 Mar
Air Canada Logo
5:40 p.m. - 7:10 a.m.
YXU
-
DUB
8h 30m
1 stop
Air Canada Logo
8:00 a.m. - 5:05 p.m.
DUB
-
YXU
13h 05m
1 stop
C$ 722Air Canada
Thu, 5 Mar - Mon, 9 Mar
Air Canada Logo
9:25 a.m. - 7:10 a.m.
YXU
-
DUB
16h 45m
1 stop
Air Canada Logo
8:00 a.m. - 5:05 p.m.
DUB
-
YXU
13h 05m
1 stop
C$ 724Air Canada
Thu, 5 Mar - Mon, 9 Mar
Air Canada Logo
5:40 p.m. - 7:10 a.m.
YXU
-
DUB
8h 30m
1 stop
Air Canada Logo
8:00 a.m. - 8:46 a.m.
DUB
-
YXU
28h 46m
1 stop
C$ 736Air Canada
Fri, 6 Mar - Fri, 13 Mar
Lufthansa Logo
5:40 p.m. - 5:10 p.m.
YXU
-
DUB
18h 30m
2 stops
Lufthansa Logo
8:00 a.m. - 5:05 p.m.
DUB
-
YXU
13h 05m
1 stop
C$ 751Lufthansa
Thu, 5 Mar - Mon, 9 Mar
Air Canada Logo
5:10 a.m. - 7:30 a.m.
YXU
-
DUB
21h 20m
2 stops
Air Canada Logo
8:00 a.m. - 8:46 a.m.
DUB
-
YXU
28h 46m
1 stop
C$ 761Air Canada
Thu, 5 Mar - Mon, 9 Mar
Air Canada Logo
5:10 a.m. - 7:30 a.m.
YXU
-
DUB
21h 20m
2 stops
Air Canada Logo
8:00 a.m. - 9:21 p.m.
DUB
-
YXU
17h 21m
1 stop
C$ 763Air Canada
Fri, 6 Mar - Fri, 13 Mar
SWISS Logo
5:40 p.m. - 5:45 p.m.
YXU
-
DUB
19h 05m
2 stops
SWISS Logo
6:35 p.m. - 9:21 p.m.
DUB
-
YXU
30h 46m
2 stops
C$ 765SWISS
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
5:40 p.m. - 7:10 a.m.
YXU
-
DUB
8h 30m
1 stop
Multiple Airlines Logo
5:00 a.m. - 5:05 p.m.
DUB
-
YXU
16h 05m
2 stops
C$ 768Multiple Airlines
Thu, 5 Mar - Mon, 9 Mar
Air Canada Logo
5:40 p.m. - 10:20 a.m.
YXU
-
DUB
11h 40m
2 stops
Air Canada Logo
8:00 a.m. - 9:21 p.m.
DUB
-
YXU
17h 21m
1 stop
C$ 775Air Canada
Thu, 5 Mar - Thu, 12 Mar
United Airlines Logo
9:25 a.m. - 7:30 a.m.
YXU
-
DUB
17h 05m
2 stops
United Airlines Logo
1:35 p.m. - 5:05 p.m.
DUB
-
YXU
31h 30m
2 stops
C$ 811United 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$ 736) and Lufthansa (C$ 751).

Find deals

Good to know

Low seasonNovember
Cheapest flightC$ 637
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 4% 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.

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 10644 reviews
7.8Crew
7.3Boarding
7.1Comfort
6.8Entertainment
6.3Food
Airline reviews

It was a very small plane and was ok. No food or entertainment so there should be an option for NA.

10.0 ExcellentAngela, Jan 2026
YOW - YUL
Read more Air Canada reviews

It was a very small plane and was ok. No food or entertainment so there should be an option for NA.

I travelled in Business class for the first time and wish I could do that again.

The crew from Toronto Santiago (and the other way) weren't nice people. They seemed angry. Other flights with Air Canada had much nicer crews. Bathrooms always had sticky floors. Yuck!

No entertainment system. Paid extra for wider seats but not worth the cost. Flight left a little late and arrived early.

We boarded and then deboarded the plane after being told it needed something done that couldn't be fixed. Sent notice about 3h flight delay, then they clawed it back and we were 1h delayed. Very poor communication.

Was notified on a timely manner of any changes, if any, of the flight schedules.

My seat was covered in vomit and I will be reaching out to Air Canada

We were happy with the service and cost of checking a bag

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

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

Information on your arrival and departure airports

London (YXU)