£491 Find Cheap Flights from Cardiff to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to Ontario departing on 27/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Ontario, as well as popular online travel agencies
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Cheap Flights from Cardiff to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Cardiff to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Cardiff to Ontario

Wed, 3 Sep - Mon, 8 Sep
KLM Logo
09:50 - 20:55CWL-YYZ
16h 05m2 stops
KLM Logo
22:10 - 09:15YYZ-CWL
30h 05m1 stop
£491KLM
Find Deal
Wed, 3 Sep - Mon, 8 Sep
KLM Logo
09:50 - 20:55CWL-YYZ
16h 05m2 stops
KLM Logo
16:45 - 09:15YYZ-CWL
11h 30m1 stop
£493KLM
Find Deal
Thu, 7 Aug - Sun, 17 Aug
 Logo
07:55 - 15:50CWL-YYZ
12h 55m1 stop
 Logo
17:20 - 12:45YYZ-CWL
14h 25m1 stop
Thu, 7 Aug - Thu, 14 Aug
 Logo
07:55 - 15:50CWL-YYZ
12h 55m1 stop
 Logo
17:20 - 12:00YYZ-CWL
13h 40m1 stop
Wed, 3 Sep - Mon, 8 Sep
KLM Logo
09:50 - 20:55CWL-YYZ
16h 05m2 stops
KLM Logo
12:14 - 09:15YYZ-CWL
16h 01m2 stops
£517KLM
Find Deal
Wed, 3 Sep - Mon, 8 Sep
KLM Logo
17:15 - 13:20CWL-YYZ
25h 05m1 stop
KLM Logo
22:10 - 09:15YYZ-CWL
30h 05m1 stop
£551KLM
Find Deal
Wed, 3 Sep - Mon, 8 Sep
KLM Logo
17:15 - 13:20CWL-YYZ
25h 05m1 stop
KLM Logo
16:45 - 09:15YYZ-CWL
11h 30m1 stop
£553KLM
Find Deal
Wed, 6 Aug - Tue, 19 Aug
Delta Logo
09:50 - 23:13CWL-YYZ
18h 23m2 stops
Delta Logo
22:10 - 09:15YYZ-CWL
30h 05m1 stop
£709Delta
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Wed, 6 Aug - Tue, 19 Aug
Delta Logo
09:50 - 23:13CWL-YYZ
18h 23m2 stops
Delta Logo
10:20 - 16:45YYZ-CWL
25h 25m2 stops
£726Delta
Find Deal
Sat, 9 Aug - Thu, 14 Aug
Delta Logo
09:45 - 20:53CWL-YYZ
16h 08m2 stops
Delta Logo
06:04 - 09:15YYZ-CWL
22h 11m2 stops
£800Delta
Find Deal
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KAYAK's insights & trends for Cardiff to Ontario flights

Get data-powered insights and trends into flights from Cardiff to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Cardiff to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cardiff to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Cardiff to Ontario is March, when tickets cost £516 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £1,088 and £840 respectively.


Good to know - Cheap tickets from Cardiff to Ontario

Low seasonMarch
High seasonNovember
Cheapest flight£377
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from Cardiff to Toronto

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Cardiff to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cardiff to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Cardiff to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cardiff to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Cardiff to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cardiff to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Cardiff to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ontario?

    The cheapest time of day to fly to Ontario is generally in the morning, when retur flights cost £917 on average. Morning departures are around 6% cheaper than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the evening, which is peak travel time and where the average cost of a ticket is £977.

Top airlines flying from Cardiff to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Cardiff to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cardiff to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1358 reviews
7.2Food
7.7Comfort
7.1Entertainment
7.8Boarding
8.4Crew
Airline reviews

Klm start boarding while somw air issue in the plan

8.0 ExcellentA, Jun 2025AMS - YYZ
Read more KLM reviews

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

Everything you need to know for your flight from Cardiff to Ontario

Information on your arrival and departure airports

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