C$ 631 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 16/8. 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

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Best Ireland Flight Deals from London

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stopC$ 837
Shannon
Shannon2 stopsC$ 1,213
Dublin
Dublin1 stopC$ 837
Shannon
Shannon2 stopsC$ 1,213

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

Wed, 8 Oct - Wed, 29 Oct
Air Canada Logo
9:55 a.m. - 8:15 a.m.YXU-DUB
17h 20m1 stop
Air Canada Logo
8:00 a.m. - 9:21 p.m.DUB-YXU
17h 21m1 stop
C$ 837Air Canada
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Sun, 5 Oct - Fri, 31 Oct
Air Canada Logo
3:40 p.m. - 7:45 a.m.YXU-DUB
35h 05m2 stops
Air Canada Logo
8:00 a.m. - 9:21 p.m.DUB-YXU
17h 21m1 stop
C$ 838Air Canada
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Wed, 8 Oct - Wed, 29 Oct
Logo
6:15 a.m. - 8:15 a.m.YXU-DUB
21h 00m1 stop
Logo
12:50 p.m. - 9:21 p.m.DUB-YXU
36h 31m2 stops
C$ 865
Find Deal
Mon, 22 Sep - Tue, 14 Oct
Lufthansa Logo
3:40 p.m. - 8:15 a.m.YXU-DUB
11h 35m1 stop
Lufthansa Logo
9:50 a.m. - 9:27 p.m.DUB-YXU
16h 37m1 stop
C$ 869Lufthansa
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Wed, 8 Oct - Thu, 30 Oct
United Airlines Logo
9:55 a.m. - 7:10 a.m.YXU-DUB
16h 15m2 stops
United Airlines Logo
12:05 p.m. - 8:46 a.m.DUB-YXU
24h 41m2 stops
C$ 874United Airlines
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Sun, 5 Oct - Thu, 30 Oct
Lufthansa Logo
3:40 p.m. - 8:15 a.m.YXU-DUB
11h 35m1 stop
Lufthansa Logo
5:00 a.m. - 9:21 p.m.DUB-YXU
20h 21m2 stops
C$ 882Lufthansa
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Sat, 11 Oct - Thu, 30 Oct
SWISS Logo
3:40 p.m. - 5:50 p.m.YXU-DUB
21h 10m2 stops
SWISS Logo
6:35 p.m. - 9:21 p.m.DUB-YXU
30h 46m2 stops
C$ 894SWISS
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Fri, 10 Oct - Thu, 30 Oct
United Airlines Logo
9:55 a.m. - 7:10 a.m.YXU-DUB
16h 15m2 stops
United Airlines Logo
12:05 p.m. - 5:06 p.m.DUB-YXU
33h 01m2 stops
C$ 899United Airlines
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Tue, 7 Oct - Wed, 29 Oct
SWISS Logo
3:40 p.m. - 12:10 p.m.YXU-DUB
15h 30m2 stops
SWISS Logo
6:35 p.m. - 9:21 p.m.DUB-YXU
30h 46m2 stops
C$ 919SWISS
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Tue, 23 Sep - Tue, 14 Oct
Logo
3:40 p.m. - 12:10 p.m.YXU-DUB
15h 30m2 stops
Logo
9:50 a.m. - 3:02 p.m.DUB-YXU
10h 12m1 stop
C$ 921
Find Deal
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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.

What’s the cheapest day of the week to fly from London to Ireland?

The average price of all round-trip flights from London to Ireland clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ireland on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from London to Ireland. For your return ticket, we recommend flying on a Sunday and avoiding Saturdays for the best deals.

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Good to know

Low seasonOctober
High seasonMay
Cheapest flightC$ 631
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly and prices are also 9% 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 9681 reviews
7.1Comfort
6.3Food
7.8Crew
6.8Entertainment
7.3Boarding
Airline reviews

They screwed up so bad, I asked for a short check for my luggage since we had a 21 hour overnight layover in London at a hotel. They said I have to receive my luggage in London because it’s an overnight layover. Get to London, nope, my bags aren’t coming off they are staying in terminal 5 over night and going straight to Ibiza. So we had no luggage for a whole day and basically stuck with no clothes or washroom stuff. Finally get to Ibiza and my luggage is completely smashed and damaged and missing a wheel. Now I have to drag this 50 lbs luggage around Ibiza islands for 10 days. Wtf. So pissed off Air Canada is LITERALLY THE WORST AIRLINE IN THE WORLD

2.0 MediocrePeter, Jul 2025YYZ - LHR
Read more Air Canada reviews

They screwed up so bad, I asked for a short check for my luggage since we had a 21 hour overnight layover in London at a hotel. They said I have to receive my luggage in London because it’s an overnight layover. Get to London, nope, my bags aren’t coming off they are staying in terminal 5 over night and going straight to Ibiza. So we had no luggage for a whole day and basically stuck with no clothes or washroom stuff. Finally get to Ibiza and my luggage is completely smashed and damaged and missing a wheel. Now I have to drag this 50 lbs luggage around Ibiza islands for 10 days. Wtf. So pissed off Air Canada is LITERALLY THE WORST AIRLINE IN THE WORLD

At 6'2" the seat space was very cramped for economy. Otherwise good.

Staff was very courteous and kept things organized. We will definitely use Air Canada for further travel

Very good except paying twice for seat selection. Once when I booked and again when I checked in.

In a nutshell, my bag, the one I have to pay for, because now you can’t even bring a carry on, did not make it. I am still waiting for an update. The fact that not only were have to pay for it, but on top of that we are stuck without getting it, it’s ridiculous..

Great flights. 90 minute departure delay for maintenance issues, not a great start but, afer that very good. Didn't pay extra for seats and lucked into a window and an aisle seat. Price was excellent at the super low economy level.

No TV's. Seats are super uncomfortable. Crew was great!

This was an excellent experience for a very short flight.

No space in overhead bin, one cookie, 2 oz of juice - is not customer service.

Just a little improvement on food but everything is excellent

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

Information on your arrival and departure airports

London (YXU)

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