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Cheap flights from Cardiff to Ontario from £180

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — YYZ
1 Jun — 8 Jun1
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 2 May 2026.

Sun 14/621:45
CWL
-
YYZ
2 stops22h 15m
Multiple Airlines
Sun 21/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 30/4£337
Wed 17/623:30
CWL
-
YYZ
2 stops20h 30m
Multiple Airlines
Sun 5/722:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/5£339
Mon 15/622:10
CWL
-
YYZ
2 stops24h 00m
Multiple Airlines
Mon 29/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/5£340
Wed 17/623:30
CWL
-
YYZ
2 stops20h 30m
Multiple Airlines
Wed 8/722:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/5£341
Mon 22/622:10
CWL
-
YYZ
2 stops24h 00m
Multiple Airlines
Sun 5/722:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/5£363
Thu 18/622:50
CWL
-
YYZ
1 stop19h 30m
Multiple Airlines
Fri 3/722:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/5£365
Mon 15/622:10
CWL
-
YYZ
2 stops24h 00m
Multiple Airlines
Mon 22/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 30/4£366
Thu 18/622:50
CWL
-
YYZ
1 stop19h 30m
Multiple Airlines
Wed 8/722:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/5£367
Fri 12/622:45
CWL
-
YYZ
2 stops21h 15m
Multiple Airlines
Fri 19/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 28/4£370

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 2 May 2026.

Round-trip from

£337

One-way from

£180

Popular in

December

Cheapest in

January

Average price

£588

Good round-trip deal

£442 or less

Good one-way deal

£273 or less
WestJet
  • WestJet
  • 14/6-21/6
  • 2 total stops
  • 29h 20m total
  • Cardiff to Ontario
Search Deals
19/5
  • 19/5
  • 2 total stops
  • 27h 30m total
  • Cardiff to Ontario
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£140 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£44 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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 2 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 5/6

22:45-14:55

1 stop21h 10m

Toronto Pearson Intl

Fri 12/6

22:10-10:15

Nonstop7h 05m

£405

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Mon 31/8

17:15-19:55

1 stop31h 40m

Toronto Pearson Intl

Thu 10/9

21:55-09:15

1 stop30h 20m

£668

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Mon 22/6

09:45-23:15

2 stops18h 30m

Toronto Pearson Intl

Tue 7/7

16:45-09:15

1 stop11h 30m

£723

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 18/6

09:45-19:55

1 stop15h 10m

Toronto Pearson Intl

Thu 2/7

21:55-09:15

1 stop30h 20m

£733

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 1/9

23:15-21:45

2 stops27h 30m

Toronto Pearson Intl

Fri 18/9

21:55-09:15

3 stops30h 20m

£746

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sat 4/7

09:50-23:15

2 stops18h 25m

Toronto Pearson Intl

Thu 8/10

16:45-09:15

1 stop11h 30m

£747

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 18/6

09:45-13:20

1 stop32h 35m

Toronto Pearson Intl

Tue 7/7

06:04-16:45

2 stops29h 41m

£753

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Fri 19/6

09:45-11:25

2 stops30h 40m

Toronto Pearson Intl

Wed 8/7

21:55-09:15

1 stop30h 20m

£753
Fastest return journey

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

£773
Cheapest one-way
Fastest single journey

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sat 13/6

11:35-14:45

Nonstop8h 10m

£249

Flights are sorted by cheapest return flights first.

Deals found on 1/5

Showing 1-10 of 17 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
No data available for this route at this time. Please check back soon.

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 2 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
1,509 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

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
1,509 reviews
KLM
7.8
Good
1,509 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

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
3,331 reviews
KLM
7.8
Good
1,509 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

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 31h 40m. 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 £234. While the most popular route (Cardiff Wales - Toronto Pearson Intl) can be booked for £337 on average, our data indicates £424 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 2 May 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£355Average£513FlexibilityNo cancel feeOn-time60%
Search WestJet flights
KLMCheapest£523Average£701FlexibilityNo 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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