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Cheap flights from London, ON to Ireland from C$ 640

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — DUB
5 Sep — 12 Sep1
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 6 August 2026.

Thu 17/910:05 a.m. -
1 stop17h 10m
Thu 24/99:50 a.m. -
1 stop12h 53m
Deal found 3/8C$ 838
Sat 3/106:20 p.m. -
1 stop8h 55m
Wed 7/109:20 a.m. -
1 stop13h 25m
Deal found 4/8C$ 864
Fri 18/910:05 a.m. -
1 stop17h 10m
Fri 25/99:20 a.m. -
1 stop13h 23m
Deal found 4/8C$ 868
Wed 16/95:40 a.m. -
1 stop21h 35m
Wed 23/96:35 p.m. -
2 stops28h 08m
Deal found 2/8C$ 900
Wed 2/910:05 a.m. -
2 stops16h 15m
Tue 8/99:50 a.m. -
1 stop16h 50m
Deal found 2/8C$ 913
Sun 4/103:30 p.m. -
2 stops13h 45m
Thu 8/1012:30 p.m. -
2 stops25h 50m
Deal found 4/8C$ 1,250
Sun 4/105:40 a.m. -
2 stops23h 35m
Thu 8/1012:30 p.m. -
2 stops31h 25m
Deal found 5/8C$ 1,261
Wed 7/103:30 p.m. -
2 stops18h 40m
Sun 11/107:10 a.m. -
2 stops43h 30m
Deal found 3/8C$ 1,445
Sat 19/96:10 a.m. -
3 stops27h 45m
Sat 26/98:20 a.m. -
3 stops26h 00m
Deal found 5/8C$ 1,736
Sat 19/910:05 a.m. -
2 stops16h 25m
Sat 26/97:30 a.m. -
2 stops36h 20m
Deal found 5/8C$ 1,909

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 6 August 2026.

Round-trip from

C$ 838

One-way from

C$ 640
Air Canada
  • Air Canada
  • 17/9-24/9
  • 2 total stops
  • 30h 03m total
  • London to Ireland
Search Deals
10/9
  • 10/9
  • 3 total stops
  • 34h 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 6 August 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 London - DUB Dublin

YXUDUB

London

Thu 17/9

10:05 a.m.-8:15 a.m.

1 stop17h 10m

Dublin

Thu 24/9

9:50 a.m.-5:43 p.m.

1 stop12h 53m

C$ 838
Quickest round-trip

LondonDublin

YXU London - DUB Dublin

YXUDUB

London

Sat 3/10

6:20 p.m.-8:15 a.m.

1 stop8h 55m

Dublin

Wed 7/10

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

1 stop13h 25m

C$ 864

LondonDublin

YXU London - DUB Dublin

YXUDUB

London

Wed 16/9

10:05 a.m.-7:45 a.m.

2 stops16h 40m

Dublin

Wed 23/9

6:35 p.m.-5:43 p.m.

2 stops28h 08m

C$ 904

LondonDublin

YXU London - DUB Dublin

YXUDUB

London

Sat 5/9

10:05 a.m.-11:10 a.m.

2 stops20h 05m

Dublin

Tue 13/10

9:50 a.m.-2:55 p.m.

1 stop10h 05m

C$ 907

LondonDublin

YXU London - DUB Dublin

YXUDUB

London

Wed 2/9

10:05 a.m.-7:20 a.m.

2 stops16h 15m

Dublin

Tue 8/9

9:50 a.m.-9:40 p.m.

1 stop16h 50m

C$ 913

LondonDublin

YXU London - DUB Dublin

YXUDUB

London

Tue 13/10

10:05 a.m.-8:15 a.m.

1 stop17h 10m

Dublin

Sat 31/10

8:00 a.m.-2:47 p.m.

1 stop10h 47m

C$ 945

LondonDublin

YXU London - DUB Dublin

YXUDUB

London

Sat 3/10

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

2 stops23h 05m

Dublin

Wed 7/10

8:50 a.m.-5:45 p.m.

2 stops13h 55m

C$ 954

LondonShannon

YXU London - SNN Shannon

YXUSNN

London

Sun 4/10

3:30 p.m.-10:15 a.m.

2 stops13h 45m

Shannon

Thu 8/10

12:30 p.m.-9:20 a.m.

2 stops25h 50m

C$ 1,250

LondonShannon

YXU London - SNN Shannon

YXUSNN

London

Sun 4/10

5:40 a.m.-10:15 a.m.

2 stops23h 35m

Shannon

Thu 8/10

12:30 p.m.-2:55 p.m.

2 stops31h 25m

C$ 1,261

LondonCork

YXU London - ORK Cork

YXUORK

London

Wed 7/10

3:30 p.m.-3:10 p.m.

2 stops18h 40m

Cork

Sun 11/10

7:10 a.m.-9:40 p.m.

2 stops43h 30m

C$ 1,445

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 21 resultsSorted by cheapest first
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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

No data available for this route at this time. Please check back soon.

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 6 August 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
11,431 reviews
Check prices

Comfort

7.1

Crew

7.8

Food

6.3

Overall

7.1

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Lori,May 2026

YYZ - YFC

Didn't land, sent back to Toronto. No food, no accommodation, no help at all!!
Air Canada
7.1
Good
11,431 reviews
Air Canada
7.1
Good
11,431 reviews
Check prices

Comfort

7.1

Crew

7.8

Food

6.3

Overall

7.1

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Lori,May 2026

YYZ - YFC

Didn't land, sent back to Toronto. No food, no accommodation, no help at all!!

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 17h 10m. Airlines will cover a distance of 5399 km. This flight may include one or multiple stops.

  • 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.

See more FAQs

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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 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 812AverageC$ 896FlexibilityNo 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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