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Cheap flights from London, ON to Dublin from C$ 639

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — DUB
19 Feb — 26 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Dublin

Enter your travel dates to find the best prices.

Cheapest flights from London to Dublin
Explore the most affordable flight options available from London to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 January 2026.

Thu 5/35:40 p.m.
YXU
-
DUB
1 stop8h 30m
Air Canada
Mon 9/38:00 a.m.
DUB
-
YXU
1 stop13h 05m
Air Canada
Deal found 18/1C$ 725
Fri 6/35:40 p.m.
YXU
-
DUB
2 stops18h 30m
Lufthansa
Fri 13/38:00 a.m.
DUB
-
YXU
1 stop13h 05m
Lufthansa
Deal found 20/1C$ 754
Fri 6/35:40 p.m.
YXU
-
DUB
2 stops19h 05m
SWISS
Fri 13/36:35 p.m.
DUB
-
YXU
2 stops30h 46m
SWISS
Deal found 20/1C$ 768
Thu 5/35:40 p.m.
YXU
-
DUB
1 stop8h 30m
Multiple Airlines
Thu 12/35:00 a.m.
DUB
-
YXU
2 stops16h 05m
Multiple Airlines
Deal found 19/1C$ 770
Thu 29/19:50 a.m.
YXU
-
DUB
2 stops16h 40m
Multiple Airlines
Thu 5/29:20 a.m.
DUB
-
YXU
2 stops17h 01m
Multiple Airlines
Deal found 18/1C$ 811
Thu 5/39:25 a.m.
YXU
-
DUB
2 stops17h 05m
United Airlines
Thu 12/31:35 p.m.
DUB
-
YXU
2 stops31h 30m
United Airlines
Deal found 19/1C$ 813
Thu 5/35:40 p.m.
YXU
-
DUB
2 stops11h 40m
United Airlines
Mon 9/312:05 p.m.
DUB
-
YXU
2 stops13h 16m
United Airlines
Deal found 19/1C$ 815
Tue 27/19:50 a.m.
YXU
-
DUB
1 stop14h 25m
Aer Lingus
Thu 5/21:00 p.m.
DUB
-
YXU
1 stop24h 46m
Aer Lingus
Deal found 18/1C$ 868
Wed 11/113:25 p.m.
YXU
-
DUB
2 stops21h 20m
Multiple Airlines
Wed 18/119:00 a.m.
DUB
-
YXU
1 stop17h 46m
Multiple Airlines
Deal found 18/1C$ 869

Find flight deals from London to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 January 2026.

Round-trip from

C$ 725

One-way from

C$ 639

Popular in

January

Cheapest in

November

Average price

C$ 1,995
Air Canada
  • Air Canada
  • 5/3-9/3
  • 2 total stops
  • 49h 46m total
  • London to Dublin
Search Deals
6/3
  • 6/3
  • 3 total stops
  • 43h 10m total
  • London to Dublin
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (C$ 571 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (C$ 133 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Dublin 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 20 January 2026.
Use the filters below to find and compare flights from London to Dublin that are best for you.

Fly from

London

Fly to

Dublin

Route

Depart

Return

Price

LondonDublin

YXU - DUB

YXUDUB

London

Fri 6/3

5:40 p.m.-5:10 p.m.

2 stops18h 30m

Dublin

Fri 13/3

8:00 a.m.-5:05 p.m.

1 stop13h 05m

C$ 754

LondonDublin

YXU - DUB

YXUDUB

London

Thu 5/3

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

2 stops21h 20m

Dublin

Mon 9/3

8:00 a.m.-8:46 a.m.

1 stop28h 46m

C$ 764

LondonDublin

YXU - DUB

YXUDUB

London

Fri 6/3

5:40 p.m.-5:45 p.m.

2 stops19h 05m

Dublin

Fri 13/3

6:35 p.m.-9:21 p.m.

2 stops30h 46m

C$ 768

LondonDublin

YXU - DUB

YXUDUB

London

Thu 5/3

5:40 p.m.-10:20 a.m.

2 stops11h 40m

Dublin

Mon 9/3

1:35 p.m.-8:46 a.m.

2 stops23h 11m

C$ 813

LondonDublin

YXU - DUB

YXUDUB

London

Sat 31/1

9:50 a.m.-5:15 a.m.

1 stop14h 25m

Dublin

Thu 5/2

1:00 p.m.-8:46 a.m.

1 stop24h 46m

C$ 918

LondonDublin

YXU - DUB

YXUDUB

London

Sat 31/1

9:50 a.m.-5:15 a.m.

1 stop14h 25m

Dublin

Tue 3/2

1:00 p.m.-8:46 a.m.

1 stop24h 46m

C$ 918

LondonDublin

YXU - DUB

YXUDUB

London

Sat 31/1

9:50 a.m.-5:15 a.m.

1 stop14h 25m

Dublin

Wed 4/2

1:00 p.m.-8:46 a.m.

1 stop24h 46m

C$ 918

LondonDublin

YXU - DUB

YXUDUB

London

Fri 30/1

9:50 a.m.-5:15 a.m.

1 stop14h 25m

Dublin

Thu 5/2

1:00 p.m.-8:46 a.m.

1 stop24h 46m

C$ 918

LondonDublin

YXU - DUB

YXUDUB

London

Fri 30/1

9:50 a.m.-5:15 a.m.

1 stop14h 25m

Dublin

Wed 4/2

1:00 p.m.-9:20 p.m.

1 stop13h 20m

C$ 918

LondonDublin

YXU - DUB

YXUDUB

London

Fri 30/1

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

2 stops21h 20m

Dublin

Wed 4/2

3:15 p.m.-8:46 a.m.

2 stops22h 31m

C$ 930

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/1

Showing 1-10 of 15 results
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Best time to book a flight from London to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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 Dublin

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

Currently, February is the cheapest month in which you can book a flight from London, Ontario to Dublin (average of C$ 290). Flying from London, Ontario to Dublin in December is currently the most expensive (average of C$ 615). 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 Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated 20 January 2026.
See what other customers who have flown with Air Canada from London to Dublin have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,637 reviews
Check prices

Overall

7.1

Crew

7.8

Food

6.3

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Reviews

1 / 20
2.0
Mediocre

Sugith,Jan 2026

YYZ - YSB

8 am flight cancelled at 2 am. Rebooked next day. Had to pay to rebook myself on Porter to leave same day.
Air Canada
7.1
Good
10,637 reviews
Air Canada
7.1
Good
10,637 reviews
Check prices

Overall

7.1

Crew

7.8

Food

6.3

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Reviews

1 / 20
2.0
Mediocre

Sugith,Jan 2026

YYZ - YSB

8 am flight cancelled at 2 am. Rebooked next day. Had to pay to rebook myself on Porter to leave same day.

Related info for your journey

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

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

    Airlines like Lufthansa, Air Canada, and SWISS fly from London, Ontario to Dublin in about 18h 30m. The time it takes to get you to your destination can typically vary by up to 2h 50m. The distance from London, Ontario to Dublin is about 5399 km. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from London, Ontario to Dublin round-trip?

    Our cheapest airline available from London, Ontario to Dublin is Air Canada. Our recent data shows that you can find tickets from as low as C$ 816 on this airline. Users have found that Air Canada is 22% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Dublin 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 Dublin?

    Currently, February is the cheapest month in which you can book a flight from London, Ontario to Dublin (average of C$ 290). Flying from London, Ontario to Dublin in December is currently the most expensive (average of C$ 615). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from London to Dublin

Discover the top airline that operate flights from London to Dublin. 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 20 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 816AverageC$ 947FlexibilityNo 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 Dublin?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Dublin. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Dublin from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Dublin from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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