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Cheap flights from Ontario to Cardiff from £134

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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — CWL
16 Jun — 23 Jun1
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 17 May 2026.

Mon 1/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Mon 15/622:10
CWL
-
YYZ
1 stop20h 10m
Multiple Airlines
Deal found 14/5£276
Sun 7/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Wed 17/623:30
CWL
-
YYZ
2 stops20h 30m
Multiple Airlines
Deal found 13/5£317
Fri 12/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Fri 19/622:45
CWL
-
YYZ
1 stop21h 10m
Multiple Airlines
Deal found 13/5£343
Wed 1/722:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Tue 21/711:35
CWL
-
YYZ
Nonstop8h 10m
WestJet
Deal found 16/5£344
Mon 1/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Mon 15/611:35
CWL
-
YYZ
Nonstop8h 10m
WestJet
Deal found 14/5£348
Mon 1/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Mon 8/611:35
CWL
-
YYZ
Nonstop8h 10m
WestJet
Deal found 13/5£351
Mon 6/722:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Tue 21/711:35
CWL
-
YYZ
Nonstop8h 10m
WestJet
Deal found 16/5£353
Mon 1/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Mon 8/622:10
CWL
-
YYZ
1 stop20h 10m
Multiple Airlines
Deal found 13/5£354
Mon 6/722:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Thu 16/711:35
CWL
-
YYZ
Nonstop8h 10m
WestJet
Deal found 12/5£355
Wed 3/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Mon 15/622:10
CWL
-
YYZ
1 stop22h 40m
Multiple Airlines
Deal found 15/5£356
Fri 12/606:45
YUL
-
CWL
1 stop22h 30m
WestJet
Tue 16/611:35
CWL
-
YUL
1 stop17h 50m
WestJet
Deal found 12/5£436
Mon 1/618:30
YTZ
-
CWL
3 stops33h 45m
Multiple Airlines
Mon 8/622:10
CWL
-
YTZ
2 stops22h 42m
Multiple Airlines
Deal found 13/5£560

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 17 May 2026.

Round-trip from

£276

One-way from

£134

Popular in

January

Cheapest in

August

Average price

£620
1/6-15/6
  • 1/6-15/6
  • 1 total stop
  • 27h 15m total
  • Ontario to Cardiff
Search Deals
WestJet
  • WestJet
  • 7/6
  • Nonstop
  • 7h 05m total
  • Ontario to Cardiff
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£229 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 17 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

Fri 12/6

17:45-10:15

1 stop11h 30m

Cardiff Wales

Tue 16/6

11:35-00:25

1 stop17h 50m

£436

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Mon 7/9

21:55-16:45

1 stop13h 50m

Cardiff Wales

Tue 15/9

09:45-23:22

2 stops18h 37m

£594

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Wed 9/9

16:45-09:15

1 stop11h 30m

Cardiff Wales

Tue 15/9

09:45-23:22

2 stops18h 37m

£594

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Tue 13/10

21:55-09:15

1 stop30h 20m

Cardiff Wales

Sat 17/10

17:35-19:55

1 stop31h 20m

£600

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Wed 10/6

18:50-09:15

1 stop9h 25m

Cardiff Wales

Sun 14/6

09:50-23:28

2 stops42h 38m

£600

TorontoCardiff

YTZ - CWL

YTZCWL

Toronto Island

Mon 1/6

09:30-16:45

3 stops26h 15m

Cardiff Wales

Mon 15/6

22:10-17:52

2 stops24h 42m

£604

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

17:30-10:15

2 stops35h 45m

Cardiff Wales

Sat 13/6

11:35-00:25

1 stop17h 50m

£605

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

20:35-10:15

1 stop32h 40m

Cardiff Wales

Sat 13/6

11:35-00:25

1 stop17h 50m

£606

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Tue 8/9

21:55-16:45

1 stop13h 50m

Cardiff Wales

Sat 19/9

09:45-22:57

2 stops18h 12m

£634

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Wed 9/9

16:45-16:45

1 stop19h 00m

Cardiff Wales

Sat 19/9

09:45-22:57

2 stops18h 12m

£634

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 44 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 £47). Flying from Region of Ontario to Cardiff in March is currently the most expensive (average of £676). 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.

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, Delta, and KLM fly from Region of Ontario to Cardiff in about 13h 50m. The time it takes to get you to your destination can typically vary by up to 16h 30m. 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 £47). Flying from Region of Ontario to Cardiff in March is currently the most expensive (average of £676). 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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