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Cheap flights from Ontario to Cardiff from £520

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — CWL
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 11 November 2025.

Sun 16/1118:45YYZ - CWL
2 stops34h 05mDelta
Tue 2/1210:20CWL - YYZ
1 stop13h 55mDelta
Deal found 9/11£537
Thu 4/1206:00YYZ - CWL
2 stops22h 50mDelta
Tue 13/110:20CWL - YYZ
1 stop13h 55mDelta
Deal found 10/11£564
Sun 16/1121:15YYZ - CWL
1 stop31h 35mKLM
Tue 2/1217:25CWL - YYZ
1 stop27h 15mKLM
Deal found 9/11£569
Tue 9/1217:50YYZ - CWL
1 stop11h 00mDelta
Tue 13/110:20CWL - YYZ
1 stop13h 55mDelta
Deal found 10/11£609
Mon 8/1217:50YYZ - CWL
1 stop18h 05mDelta
Tue 13/110:20CWL - YYZ
1 stop13h 55mDelta
Deal found 10/11£610
Tue 2/1221:15YYZ - CWL
1 stop31h 35mDelta
Sun 11/110:15CWL - YYZ
2 stops39h 11mDelta
Deal found 10/11£631
Tue 2/1209:52YYZ - CWL
2 stops18h 58mDelta
Mon 12/110:20CWL - YYZ
2 stops28h 06mDelta
Deal found 10/11£649
Tue 2/1221:15YYZ - CWL
1 stop14h 40mDelta
Wed 7/110:20CWL - YYZ
2 stops36h 31mDelta
Deal found 10/11£658
Wed 3/1210:20YYZ - CWL
2 stops18h 30mDelta
Wed 7/110:20CWL - YYZ
2 stops36h 31mDelta
Deal found 10/11£676
Tue 2/1221:15YYZ - CWL
1 stop14h 40mDelta
Tue 6/110:20CWL - YYZ
2 stops39h 06mDelta
Deal found 10/11£678
Wed 3/1212:13YYZ - CWL
2 stops16h 37mDelta
Sat 10/110:20CWL - YYZ
2 stops17h 36mDelta
Deal found 10/11£696
Tue 11/1119:05YUL - CWL
2 stops16h 50mKLM
Tue 18/1117:25CWL - YUL
1 stop28h 55mKLM
Deal found 10/11£726

Cheap flight deals from Ontario to Cardiff

Keep the following information in mind while searching for Ontario to Cardiff flight deals. Data was last updated 11 November 2025.

Round-trip from

£520

Popular in

November

Cheapest in

July

Average price

£859
KLM
  • KLM
  • 18/2-23/2
  • 2 total stops
  • 42h 00m total
  • Ontario to Cardiff
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 11 November 2025.
Use the filters below to find and compare flights from Ontario to Cardiff that are best for you.

Fly from

Ontario

Fly to

Cardiff

Route

Depart

Return

Price

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Wed 18/2

17:50-09:50

1 stop11h 00m

Cardiff Wales

Mon 23/2

17:15-19:15

1 stop31h 00m

£520

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Wed 3/12

09:52-09:50

2 stops18h 58m

Cardiff Wales

Tue 13/1

10:20-19:13

2 stops37h 53m

£555

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Thu 19/2

17:50-16:45

1 stop17h 55m

Cardiff Wales

Mon 23/2

10:20-22:56

2 stops17h 36m

£560

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Thu 4/12

06:00-09:50

2 stops22h 50m

Cardiff Wales

Tue 13/1

10:20-19:15

1 stop13h 55m

£564

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Sat 6/12

18:05-16:50

2 stops17h 45m

Cardiff Wales

Tue 13/1

10:20-19:15

1 stop13h 55m

£564

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Thu 12/3

18:10-09:50

2 stops35h 40m

Cardiff Wales

Wed 18/3

10:20-22:55

2 stops16h 35m

£595

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Wed 29/4

22:10-09:15

1 stop30h 05m

Cardiff Wales

Sun 3/5

17:15-13:20

1 stop25h 05m

£600

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

18:50-09:15

1 stop9h 25m

Cardiff Wales

Sun 10/5

09:50-16:55

1 stop12h 05m

£602

MontrealCardiff

YUL - CWL

YULCWL

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

18:50-16:45

1 stop16h 55m

Cardiff Wales

Sun 10/5

09:50-16:55

1 stop12h 05m

£603

TorontoCardiff

YYZ - CWL

YYZCWL

Toronto Pearson Intl

Tue 5/5

23:30-16:45

2 stops12h 15m

Cardiff Wales

Tue 12/5

09:50-21:05

2 stops16h 15m

£613

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Showing 1-10 of 15 results
1
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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, May is the cheapest month in which you can book a flight from Region of Ontario to Cardiff (average of £58). Flying from Region of Ontario to Cardiff in August 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.

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 KLM, Delta, and Virgin Atlantic fly from Region of Ontario to Cardiff in about 9h 25m. The time it takes to get you to your destination can typically vary by up to 9h 33m. Region of Ontario and Cardiff are separated by a distance of 3126 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, May is the cheapest month in which you can book a flight from Region of Ontario to Cardiff (average of £58). Flying from Region of Ontario to Cardiff in August 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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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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