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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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — YYZ
6 Jul — 13 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 6 June 2026.

Mon 8/611:35
CWL
-
YYZ
Nonstop8h 10m
WestJet
Mon 15/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 5/6£301
Thu 18/611:35
CWL
-
YYZ
Nonstop8h 10m
WestJet
Wed 24/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 3/6£303
Mon 8/622:10
CWL
-
YYZ
1 stop21h 45m
Multiple Airlines
Mon 15/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 5/6£304
Wed 15/723:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Tue 4/821:35
YYZ
-
CWL
1 stop20h 15m
Multiple Airlines
Deal found 2/6£305
Mon 6/722:10
CWL
-
YYZ
1 stop21h 45m
Multiple Airlines
Sun 26/722:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 1/6£306
Fri 7/822:45
CWL
-
YYZ
1 stop20h 15m
Multiple Airlines
Mon 24/822:55
YYZ
-
CWL
1 stop18h 55m
Multiple Airlines
Deal found 2/6£307
Fri 7/822:45
CWL
-
YYZ
1 stop20h 15m
Multiple Airlines
Sun 23/821:35
YYZ
-
CWL
1 stop19h 10m
Multiple Airlines
Deal found 2/6£307
Mon 17/822:10
CWL
-
YYZ
1 stop20h 10m
Multiple Airlines
Mon 31/822:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/6£308
Wed 5/823:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Thu 27/823:05
YYZ
-
CWL
1 stop26h 50m
Multiple Airlines
Deal found 2/6£309
Wed 12/823:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Wed 26/821:35
YYZ
-
CWL
1 stop19h 50m
Multiple Airlines
Deal found 2/6£310
Wed 15/723:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Mon 27/722:55
YYZ
-
CWL
1 stop18h 55m
Multiple Airlines
Deal found 2/6£310
Wed 15/723:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Tue 18/821:35
YYZ
-
CWL
1 stop20h 15m
Multiple Airlines
Deal found 2/6£311

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 6 June 2026.

Round-trip from

£303

One-way from

£144

Good round-trip deal

£387 or less

Good one-way deal

£214 or less
WestJet
  • WestJet
  • 20/6-24/6
  • Nonstop
  • 15h 15m total
  • Cardiff to Ontario
Search Deals
21/8
  • 21/8
  • 1 total stop
  • 20h 15m 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 6 June 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
Fastest return journey

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Fri 3/7

22:45-14:55

1 stop21h 10m

Toronto Pearson Intl

Fri 24/7

22:10-10:15

Nonstop7h 05m

£337

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Mon 24/8

22:10-14:55

1 stop21h 45m

Toronto Pearson Intl

Wed 9/9

21:35-22:25

1 stop19h 50m

£342

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Mon 31/8

09:45-21:00

2 stops16h 15m

Toronto Pearson Intl

Thu 10/9

21:55-09:15

1 stop30h 20m

£654

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sun 23/8

17:15-15:20

2 stops27h 05m

Toronto Pearson Intl

Mon 7/9

06:00-09:15

2 stops22h 15m

£710

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sun 13/9

09:50-22:57

2 stops18h 07m

Toronto Pearson Intl

Mon 28/9

12:08-09:15

2 stops16h 07m

£710

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 9/7

09:45-23:18

2 stops18h 33m

Toronto Pearson Intl

Sun 26/7

15:20-09:15

2 stops12h 55m

£748

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 15/10

09:45-22:51

2 stops18h 06m

Toronto Pearson Intl

Tue 27/10

18:55-09:50

1 stop10h 55m

£755

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 20/8

09:45-22:59

2 stops42h 14m

Toronto Pearson Intl

Tue 8/9

18:10-16:45

2 stops17h 35m

£785

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Wed 17/6

09:45-23:15

2 stops18h 30m

Toronto Pearson Intl

Sun 28/6

18:00-16:45

2 stops17h 45m

£814
Cheapest one-way
Fastest single journey

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 20/8

11:35-14:45

Nonstop8h 10m

£205

Flights are sorted by cheapest return flights first.

Deals found on 2/6

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 6 June 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.

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

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 6 June 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

Crew

8.4

Entertainment

7.2

Overall

7.8

Food

7.3

Comfort

7.7

Boarding

7.8

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

Crew

8.4

Entertainment

7.2

Overall

7.8

Food

7.3

Comfort

7.7

Boarding

7.8

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
3,351 reviews
KLM
7.8
Good
1,526 reviews
Check prices

Crew

8.4

Entertainment

7.2

Overall

7.8

Food

7.3

Comfort

7.7

Boarding

7.8

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?

    KLM can get you from Cardiff to Region of Ontario in just under 16h 15m. Your travel time can differ by up to . Airlines will cover a distance of 3432 mi.

  • What are the cheapest flights from Cardiff to Region of Ontario?

    Looking at all options, your cheapest flight can be booked for £196. While the most popular route (Cardiff Wales - Toronto Pearson Intl) can be booked for £270 on average, our data indicates £448 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

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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 6 June 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£326Average£442FlexibilityNo cancel feeOn-time60%
Search WestJet flights
KLMCheapest£530Average£711FlexibilityNo 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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