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Cheap flights from London, ON to Ireland from C$ 642

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — DUB
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Ireland

Enter your travel dates to find the best prices.

Cheapest flights from London to Ireland
Explore the most affordable flight options available from London to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 March 2026.

Sat 12/93:30 p.m.
YXU
-
DUB
1 stop11h 45m
Multiple Airlines
Fri 18/99:20 a.m.
DUB
-
YXU
1 stop28h 35m
Multiple Airlines
Deal found 21/3C$ 829
Thu 11/63:30 p.m.
YXU
-
DUB
1 stop11h 45m
Air Canada
Mon 15/69:20 a.m.
DUB
-
YXU
1 stop31h 23m
Air Canada
Deal found 19/3C$ 831
Wed 13/56:10 p.m.
YXU
-
DUB
1 stop9h 05m
Air Canada
Wed 27/59:20 a.m.
DUB
-
YXU
1 stop13h 13m
Air Canada
Deal found 18/3C$ 834
Sat 2/59:30 a.m.
YXU
-
DUB
1 stop17h 45m
Multiple Airlines
Sat 9/56:35 p.m.
DUB
-
YXU
2 stops27h 58m
Multiple Airlines
Deal found 22/3C$ 859
Thu 11/69:30 a.m.
YXU
-
DUB
2 stops16h 50m
United Airlines
Mon 15/68:50 a.m.
DUB
-
YXU
2 stops17h 48m
United Airlines
Deal found 19/3C$ 919
Sun 3/55:40 a.m.
YXU
-
DUB
2 stops23h 05m
United Airlines
Sun 10/58:50 a.m.
DUB
-
YXU
2 stops13h 43m
United Airlines
Deal found 18/3C$ 920
Sat 2/512:20 p.m.
YXU
-
SNN
2 stops16h 55m
Air Canada
Wed 6/512:30 p.m.
SNN
-
YXU
2 stops34h 03m
Air Canada
Deal found 18/3C$ 1,300
Sun 31/55:10 a.m.
YXU
-
SNN
2 stops21h 20m
Air Canada
Thu 4/69:30 a.m.
SNN
-
YXU
2 stops17h 08m
Air Canada
Deal found 19/3C$ 1,316
Thu 11/69:30 a.m.
YXU
-
ORK
2 stops24h 40m
Air Canada
Mon 15/67:10 a.m.
ORK
-
YXU
2 stops54h 43m
Air Canada
Deal found 19/3C$ 1,517
Sun 10/55:40 a.m.
YXU
-
ORK
2 stops28h 30m
Air Canada
Thu 14/57:10 a.m.
ORK
-
YXU
2 stops33h 33m
Air Canada
Deal found 18/3C$ 1,556

Find flight deals from London to Ireland

Keep the following information in mind while searching for London to Ireland flight deals. Data was last updated 22 March 2026.

Round-trip from

C$ 829

One-way from

C$ 642
Air Canada
  • Air Canada
  • 12/9-18/9
  • 2 total stops
  • 40h 20m total
  • London to Ireland
Search Deals
WestJet
  • WestJet
  • 2/5
  • 1 total stop
  • 23h 40m total
  • London to Ireland
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Ireland 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, Cheapflights users made 629,999 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from London to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonDublin

YXU - DUB

YXUDUB

London

Thu 11/6

3:30 p.m.-8:15 a.m.

1 stop11h 45m

Dublin

Mon 15/6

9:20 a.m.-11:43 a.m.

1 stop31h 23m

C$ 831
Quickest round-trip

LondonDublin

YXU - DUB

YXUDUB

London

Sat 2/5

6:10 p.m.-8:15 a.m.

1 stop9h 05m

Dublin

Sat 9/5

9:50 a.m.-5:33 p.m.

1 stop12h 43m

C$ 833

LondonDublin

YXU - DUB

YXUDUB

London

Sat 12/9

6:20 p.m.-7:45 a.m.

2 stops32h 25m

Dublin

Fri 18/9

9:20 a.m.-5:45 p.m.

1 stop13h 25m

C$ 837

LondonDublin

YXU - DUB

YXUDUB

London

Tue 1/9

6:10 p.m.-7:45 a.m.

2 stops32h 35m

Dublin

Fri 11/9

9:20 a.m.-2:55 p.m.

1 stop10h 35m

C$ 838

LondonDublin

YXU - DUB

YXUDUB

London

Sat 2/5

9:30 a.m.-8:15 a.m.

1 stop17h 45m

Dublin

Sat 9/5

6:35 p.m.-5:33 p.m.

2 stops27h 58m

C$ 859

LondonDublin

YXU - DUB

YXUDUB

London

Thu 11/6

9:30 a.m.-7:20 a.m.

2 stops16h 50m

Dublin

Mon 15/6

8:50 a.m.-9:38 p.m.

2 stops17h 48m

C$ 919

LondonDublin

YXU - DUB

YXUDUB

London

Sun 3/5

5:40 a.m.-9:45 a.m.

2 stops23h 05m

Dublin

Sun 10/5

8:50 a.m.-5:33 p.m.

2 stops13h 43m

C$ 920

LondonDublin

YXU - DUB

YXUDUB

London

Sat 2/5

9:30 a.m.-10:40 a.m.

2 stops20h 10m

Dublin

Sat 9/5

8:50 a.m.-5:33 p.m.

2 stops13h 43m

C$ 922

LondonShannon

YXU - SNN

YXUSNN

London

Sat 2/5

12:20 p.m.-10:15 a.m.

2 stops16h 55m

Shannon

Wed 6/5

12:30 p.m.-5:33 p.m.

2 stops34h 03m

C$ 1,300

LondonShannon

YXU - SNN

YXUSNN

London

Sun 31/5

5:10 a.m.-7:30 a.m.

2 stops21h 20m

Shannon

Thu 4/6

9:30 a.m.-9:38 p.m.

2 stops17h 08m

C$ 1,316

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/3

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Best time to book a flight from London to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from London, Ontario to Ireland?

Currently, April is the cheapest month in which you can book a flight from London, Ontario to Ireland (average of C$ 387). Flying from London, Ontario to Ireland in December is currently the most expensive (average of C$ 610). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ireland. Reviews last updated 22 March 2026.
Get a feel of what it's like to fly with Air Canada from London to Ireland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,828 reviews
Check prices

Crew

7.8

Entertainment

6.8

Comfort

7.1

Boarding

7.3

Overall

7.1

Food

6.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,828 reviews
Air Canada
7.1
Good
10,828 reviews
Check prices

Crew

7.8

Entertainment

6.8

Comfort

7.1

Boarding

7.3

Overall

7.1

Food

6.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

Related info for your journey

Find useful and relevant information for your journey from London to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from London to Ireland?

    Located just 8.6 km from the city centre, London (YXU) is the airport most travellers will use when flying to Ireland from London.

  • How long is the flight from London, Ontario to Ireland?

    Departing from London, Ontario to Ireland will take you 11h 45m. Airlines will cover a distance of 5399 km.

  • What are the most popular routes from London, Ontario to Ireland?

    Most travellers choose London - Dublin, London - Shannon or London - Cork when deciding on the best route from London, Ontario to Ireland.

  • Can I find deals for flights from London to Ireland that include hotel bookings?

    Yes. In addition to deals on London to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Ireland.

  • Can I find deals for business class flights from London to Ireland?

    Yes. Cheapflights offers flight deals from London to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London, Ontario to Ireland?

    Currently, April is the cheapest month in which you can book a flight from London, Ontario to Ireland (average of C$ 387). Flying from London, Ontario to Ireland in December is currently the most expensive (average of C$ 610). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for London to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to Ireland

Discover the top airline that operate flights from London to Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 793AverageC$ 916FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Ireland?

Deals for London to Ireland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to Ireland?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Ireland for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to Ireland with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Ireland, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Ireland become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ireland from London today and book when prices fit your budget.

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