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Cheap flights from Cardiff to Ontario from £144

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 23/6. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — YYZ
28 Jun — 5 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to Ontario
Explore the most affordable flight options available from Cardiff to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 May 2026.

Tue 4/823:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Wed 2/922:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 26/5£249
Mon 10/822:10
CWL
-
YYZ
1 stop20h 10m
Multiple Airlines
Sun 6/922:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 26/5£268
Fri 7/822:45
CWL
-
YYZ
1 stop20h 15m
Multiple Airlines
Sun 6/922:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 26/5£269
Fri 31/722:45
CWL
-
YYZ
1 stop20h 15m
Multiple Airlines
Mon 31/822:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 26/5£270
Tue 28/723:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Mon 31/822:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 26/5£271
Fri 10/722:45
CWL
-
YYZ
1 stop20h 15m
Multiple Airlines
Fri 17/722:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 26/5£272
Sat 11/707:30
CWL
-
YYZ
1 stop11h 30m
Multiple Airlines
Wed 29/722:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 26/5£276
Sun 2/821:45
CWL
-
YYZ
1 stop20h 35m
Multiple Airlines
Sun 6/922:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 26/5£281
Sun 2/821:45
CWL
-
YYZ
1 stop20h 35m
Multiple Airlines
Mon 7/922:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 26/5£283
Mon 8/611:35
CWL
-
YYZ
Nonstop8h 10m
WestJet
Mon 15/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 25/5£296

Find flight deals from Cardiff to Ontario

Keep the following information in mind while searching for Cardiff to Ontario flight deals. Data was last updated 29 May 2026.

Round-trip from

£249

One-way from

£144

Good round-trip deal

£433 or less

Good one-way deal

£256 or less
WestJet
  • WestJet
  • 4/8-2/9
  • 1 total stop
  • 26h 10m total
  • Cardiff to Ontario
Search Deals
23/6
  • 23/6
  • 1 total stop
  • 19h 05m total
  • Cardiff to Ontario
Search Deals
Price to beat on a round-trip flight from Cardiff Wales to Ontario.
Search Deals
Price to beat on a one-way flight from Cardiff Wales to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Ontario 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 29 May 2026.
Use the filters below to find and compare flights from Cardiff to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Fri 3/7

22:45-14:00

1 stop20h 15m

Toronto Pearson Intl

Wed 29/7

21:35-22:25

1 stop19h 50m

£301
Fastest return journey

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 7/7

11:35-14:45

Nonstop8h 10m

Toronto Pearson Intl

Wed 8/7

22:10-10:15

Nonstop7h 05m

£334

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Wed 29/7

23:15-21:45

2 stops27h 30m

Toronto Pearson Intl

Wed 5/8

19:15-22:25

2 stops22h 10m

£525

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 7/7

17:15-19:55

1 stop31h 40m

Toronto Pearson Intl

Wed 15/7

15:20-09:15

2 stops12h 55m

£679

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 7/7

17:15-19:55

1 stop31h 40m

Toronto Pearson Intl

Tue 21/7

16:45-16:45

1 stop19h 00m

£694

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 7/7

09:45-23:02

2 stops18h 17m

Toronto Pearson Intl

Tue 21/7

16:45-16:45

1 stop19h 00m

£694

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sun 28/6

09:50-13:20

1 stop32h 30m

Toronto Pearson Intl

Tue 7/7

06:04-09:15

2 stops22h 11m

£723

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sun 28/6

09:50-13:20

1 stop32h 30m

Toronto Pearson Intl

Mon 6/7

06:03-16:45

2 stops29h 42m

£723

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sun 28/6

09:50-19:55

1 stop15h 05m

Toronto Pearson Intl

Thu 30/7

21:55-09:15

1 stop30h 20m

£730

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 18/6

09:45-19:55

1 stop15h 10m

Toronto Pearson Intl

Fri 3/7

16:45-09:15

1 stop11h 30m

£731

Flights are sorted by cheapest return flights first.

Deals found on 28/5

Showing 1-10 of 21 resultsSorted by cheapest first
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2
3

Best time to book a flight from Cardiff to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Cardiff 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 Cardiff to Ontario

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

Find hourly flight availability from Cardiff to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 May 2026.

When flying from Cardiff to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 29 May 2026.
Check out reviews from past customers who have flown with KLM and WestJet from Cardiff to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,526 reviews
Check prices

Boarding

7.8

Food

7.3

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,526 reviews
KLM
7.8
Good
1,526 reviews
Check prices

Boarding

7.8

Food

7.3

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
WestJet
7.2
Good
3,350 reviews
KLM
7.8
Good
1,526 reviews
Check prices

Boarding

7.8

Food

7.3

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

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

    Cardiff Wales (CWL) is the airport you will fly out of if you book a flight from Cardiff to Ontario. It is only a 9.1 mi journey to Cardiff Wales (CWL) from Cardiff’s city center.

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

    WestJet and KLM can get you from Cardiff to Region of Ontario in just under 8h 10m. Your travel time can differ by up to 23h 30m. Airlines will cover 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 cheapest flights from Cardiff to Region of Ontario?

    Looking at all options, your cheapest flight can be booked for £246. While the most popular route (Cardiff Wales - Toronto Pearson Intl) can be booked for £251 on average, our data indicates £491 when flying from Cardiff to Region of Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cardiff to Ontario 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Cardiff to Ontario

Discover the top 2 airlines that operate flights from Cardiff to Ontario. 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 858,174 searches. Data last updated 29 May 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£359Average£507FlexibilityNo cancel feeOn-time60%
Search WestJet flights
KLMCheapest£529Average£710FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Cardiff to Ontario 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 Cardiff to Ontario?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Cardiff to Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Cardiff to Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Cardiff to Ontario flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Cardiff to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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