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Cheap flights from Cardiff to Ontario from £264

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 23/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — YYZ
17 Jan — 24 Jan1
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 18 December 2025.

Sat 27/1210:20CWL - YYZ
2 stops17h 30mMultiple Airlines
Sat 31/121:15YYZ - CWL
1 stop31h 35mMultiple Airlines
Deal found 16/12£762
Sat 27/1217:25CWL - YYZ
1 stop27h 15mKLM
Sat 31/121:15YYZ - CWL
1 stop31h 35mKLM
Deal found 16/12£854

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 18 December 2025.

Round-trip from

£466

One-way from

£264

Popular in

December

Cheapest in

January

Average price

£783

Good round-trip deal

£533 or less
1/4-8/4
  • 1/4-8/4
  • 2 total stops
  • 38h 25m total
  • Cardiff to Ontario
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23/5
  • 23/5
  • 1 total stop
  • 11h 25m total
  • Cardiff to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£26 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Cardiff Wales to Ontario.
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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 18 December 2025.
Use the filters below to find and compare flights from Cardiff to Ontario that are best for you.

Fly from

Cardiff

Fly to

Ontario

Route

Depart

Return

Price

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Wed 1/4

23:50-14:15

1 stop19h 25m

Toronto Pearson Intl

Wed 8/4

22:00-22:00

1 stop19h 00m

£466

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 15/1

10:30-16:25

2 stops34h 55m

Toronto Pearson Intl

Thu 22/1

20:25-22:00

2 stops20h 35m

£533

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 17/3

10:20-20:15

1 stop13h 55m

Toronto Pearson Intl

Tue 24/3

18:50-16:55

1 stop18h 05m

£586

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 17/3

10:20-20:15

1 stop13h 55m

Toronto Pearson Intl

Tue 24/3

18:50-16:55

1 stop18h 05m

£586

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 15/1

10:20-19:15

1 stop13h 55m

Toronto Pearson Intl

Thu 22/1

17:50-09:50

1 stop11h 00m

£593

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sun 31/5

21:45-15:50

1 stop23h 05m

Toronto Pearson Intl

Thu 18/6

23:05-22:20

1 stop18h 15m

£613

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 15/1

10:20-19:15

1 stop13h 55m

Toronto Pearson Intl

Thu 22/1

21:15-16:45

1 stop14h 30m

£616

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sat 23/5

09:25-15:50

1 stop11h 25m

£264

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Wed 10/6

21:10-21:25

3 stops29h 15m

£341

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sat 23/5

11:35-14:30

Nonstop7h 55m

£890

Flights are sorted by cheapest return flights first.

Deals found on 16/12

Showing 1-10 of 11 results
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 month to book a flight from Cardiff to Region of Ontario?

Currently, October is the cheapest month in which you can book a flight from Cardiff to Region of Ontario (average of £93). Flying from Cardiff to Region of Ontario in August is currently the most expensive (average of £686). 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.

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 18 December 2025.
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
7.7
Good
1,430 reviews
Check prices

Boarding

7.8

Overall

7.7

Comfort

7.6

Crew

8.4

Entertainment

7.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,430 reviews
KLM
7.7
Good
1,430 reviews
Check prices

Boarding

7.8

Overall

7.7

Comfort

7.6

Crew

8.4

Entertainment

7.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
WestJet
7.2
Good
3,204 reviews
KLM
7.7
Good
1,430 reviews
Check prices

Boarding

7.8

Overall

7.7

Comfort

7.6

Crew

8.4

Entertainment

7.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 13h 55m. 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 £503. While the most popular route (Cardiff Wales - Toronto Pearson Intl) can be booked for £497 on average, our data indicates £615 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.

  • What is the cheapest month to book a flight from Cardiff to Region of Ontario?

    Currently, October is the cheapest month in which you can book a flight from Cardiff to Region of Ontario (average of £93). Flying from Cardiff to Region of Ontario in August is currently the most expensive (average of £686). 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

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Top airline flying from Cardiff to Ontario

Discover the top airline 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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£464Average£669FlexibilityNo 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?

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