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Cheap flights from Ontario to Cardiff from £86

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — CWL
29 Jun — 6 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Cardiff

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Cardiff
Explore the most affordable flight options available from Ontario to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 May 2026.

Mon 22/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Fri 26/622:45
CWL
-
YYZ
1 stop20h 15m
Multiple Airlines
Deal found 27/5£246
Sun 14/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Wed 24/623:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Deal found 29/5£247
Mon 22/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Wed 1/723:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Deal found 26/5£248
Mon 15/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Thu 25/622:50
CWL
-
YYZ
1 stop19h 30m
Multiple Airlines
Deal found 29/5£248
Sun 21/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Tue 30/623:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Deal found 27/5£249
Sun 21/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Mon 29/622:10
CWL
-
YYZ
1 stop20h 10m
Multiple Airlines
Deal found 27/5£250
Wed 17/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Fri 26/622:45
CWL
-
YYZ
1 stop21h 10m
Multiple Airlines
Deal found 29/5£252
Sun 21/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Thu 2/722:50
CWL
-
YYZ
1 stop19h 30m
Multiple Airlines
Deal found 27/5£253
Wed 17/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Thu 9/722:50
CWL
-
YYZ
1 stop21h 05m
Multiple Airlines
Deal found 27/5£254
Sun 21/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Fri 26/622:45
CWL
-
YYZ
1 stop20h 15m
Multiple Airlines
Deal found 26/5£262
Sun 14/606:45
YUL
-
CWL
1 stop22h 30m
Multiple Airlines
Thu 18/622:50
CWL
-
YUL
2 stops22h 55m
Multiple Airlines
Deal found 26/5£379
Sun 14/606:45
YUL
-
CWL
1 stop22h 30m
WestJet
Thu 18/611:35
CWL
-
YUL
1 stop17h 50m
WestJet
Deal found 25/5£425

Find flight deals from Ontario to Cardiff

Keep the following information in mind while searching for Ontario to Cardiff flight deals. Data was last updated 30 May 2026.

Round-trip from

£246

One-way from

£86

Popular in

January

Cheapest in

August

Average price

£614
22/6-26/6
  • 22/6-26/6
  • 1 total stop
  • 27h 20m total
  • Ontario to Cardiff
Search Deals
WestJet
  • WestJet
  • 8/6
  • Nonstop
  • 7h 05m total
  • Ontario to Cardiff
Search Deals
Highest demand for flights based on searches. 32% potential increase in price (£226 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ontario to Cardiff 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 858,174 searches. Data last updated 30 May 2026.
Use the filters below to find and compare flights from Ontario to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Sun 14/6

06:45-10:15

1 stop22h 30m

Cardiff Wales

Thu 18/6

22:50-16:45

2 stops22h 55m

£379

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Sun 14/6

06:45-10:15

1 stop22h 30m

Cardiff Wales

Thu 18/6

11:35-00:25

1 stop17h 50m

£425

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Mon 6/7

17:45-10:15

1 stop11h 30m

Cardiff Wales

Sat 11/7

11:35-00:25

1 stop17h 50m

£438

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Mon 6/7

17:45-10:15

1 stop11h 30m

Cardiff Wales

Sat 11/7

07:30-00:25

2 stops21h 55m

£447

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Mon 31/8

06:45-22:50

2 stops35h 05m

Cardiff Wales

Thu 10/9

22:50-16:45

2 stops22h 55m

£544

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Tue 14/7

06:45-22:50

3 stops35h 05m

Cardiff Wales

Tue 21/7

11:35-00:25

1 stop17h 50m

£547

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Mon 22/6

06:45-22:50

3 stops35h 05m

Cardiff Wales

Tue 30/6

23:15-00:25

2 stops30h 10m

£561
Fastest return journey

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Thu 18/6

18:50-09:15

1 stop9h 25m

Cardiff Wales

Mon 22/6

09:45-16:55

1 stop12h 10m

£581

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Wed 17/6

16:45-09:15

1 stop11h 30m

Cardiff Wales

Thu 9/7

09:45-23:18

2 stops18h 33m

£599

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Sun 21/6

21:55-16:45

1 stop13h 50m

Cardiff Wales

Thu 9/7

09:45-23:18

2 stops18h 33m

£599

Flights are sorted by cheapest return flights first.

Deals found on 25/5

Showing 1-10 of 57 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Ontario with our price prediction graph.
Estimated return 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 Ontario to Cardiff

What is the cheapest month to book a flight from Region of Ontario to Cardiff?

Currently, July is the cheapest month in which you can book a flight from Region of Ontario to Cardiff (average of £46). Flying from Region of Ontario to Cardiff in March is currently the most expensive (average of £670). 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.

What is the cheapest time of day to fly from ON to CWL?

Find hourly flight availability from Ontario to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Cardiff as you normally would.

How much does it cost for a return flight from Region of Ontario to Cardiff?

Related info for your journey

Find useful and relevant information for your journey from Ontario to Cardiff. 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 into for flights to Cardiff from Ontario?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly into when you book flights from Ontario to Cardiff.

  • How long is the flight from Region of Ontario to Cardiff?

    Airlines like WestJet and Delta fly from Region of Ontario to Cardiff in about 11h 30m. The time it takes to get you to your destination can typically vary by up to 11h. Region of Ontario and Cardiff are separated by a distance of 3432 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Region of Ontario to Cardiff?

    While some choose either Toronto Island - Cardiff Wales or Montreal Pierre Elliott Trudeau Intl - Cardiff Wales, Toronto Pearson Intl - Cardiff Wales is the most popular route from Region of Ontario to Cardiff.

  • Can I find deals for flights from Ontario to Cardiff that include hotel bookings?

    Yes. In addition to deals on Ontario to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Cardiff?

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

  • Can I find deals for business class flights from Ontario to Cardiff?

    Yes. Cheapflights offers flight deals from Ontario to Cardiff 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 Region of Ontario to Cardiff?

    Currently, July is the cheapest month in which you can book a flight from Region of Ontario to Cardiff (average of £46). Flying from Region of Ontario to Cardiff in March is currently the most expensive (average of £670). 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

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

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How does Cheapflights help users find flights from Ontario to Cardiff?

When you search for this flight from Ontario to Cardiff, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Cardiff?

Cheapflights helps you find that perfect flight to Cardiff from Ontario 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 Ontario to Cardiff with no change fees?

Certainly. Search results for flights to Cardiff from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ontario to Cardiff become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Cardiff flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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