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Cheap flights from Cardiff to Ontario from £318
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/12. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — YYZ
12 Nov — 19 Nov1
Cheap flight deals from Cardiff to Ontario
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
Cheapest flights from Cardiff to OntarioExplore 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 13 October 2026.
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 13 October 2026.
Mon 23/1108:35 -
2 stops14h 40m
Sat 28/1119:40 -
2 stops13h 15m
Deal found 10/10£441
Sat 7/1108:15 -
2 stops37h 00m
Sat 14/1119:45 -
1 stop13h 10m
Deal found 10/10£546
Mon 9/1110:20 -
1 stop10h 20m
Mon 16/1117:55 -
1 stop18h 05m
Deal found 10/10£607
Mon 2/1110:20 -
1 stop10h 20m
Mon 9/1117:55 -
1 stop10h 50m
Deal found 9/10£632
Tue 17/1117:30 -
1 stop27h 10m
Sun 22/1118:10 -
2 stops41h 50m
Deal found 9/10£649
Best flights from Cardiff to OntarioDiscover carefully curated flight deals from Cardiff to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 October 2026.
Discover carefully curated flight deals from Cardiff to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 October 2026.
Mon 9/1110:20 -
1 stop10h 20m
Mon 16/1117:55 -
1 stop18h 05m
Deal found 10/10£607
Thu 12/1113:25 -
2 stops31h 50m
Thu 19/1118:15 -
2 stops16h 25m
Deal found 12/10£623
Mon 2/1110:20 -
1 stop10h 20m
Mon 9/1117:55 -
1 stop10h 50m
Deal found 9/10£632
Mon 8/217:30 -
1 stop30h 45m
Tue 23/217:55 -
1 stop10h 55m
Deal found 9/10£638
Mon 8/210:20 -
2 stops16h 20m
Tue 23/217:55 -
1 stop18h 05m
Deal found 9/10£644
Mon 2/1110:20 -
1 stop10h 20m
Mon 9/1117:55 -
1 stop18h 05m
Deal found 8/10£650
Sun 8/1117:30 -
1 stop27h 10m
Sun 15/1117:55 -
1 stop10h 55m
Deal found 11/10£665
Mon 9/1110:20 -
2 stops17h 31m
Mon 16/1122:20 -
2 stops13h 40m
Deal found 10/10£695
Last-minute flights from Cardiff to OntarioDiscover last-minute flight deals from Cardiff to Ontario. Data last updated 13 October 2026 and is based on user searches.
Discover last-minute flight deals from Cardiff to Ontario. Data last updated 13 October 2026 and is based on user searches.
Mon 2/1110:20 -
1 stop10h 20m
Mon 9/1117:55 -
1 stop10h 50m
Deal found 9/10£632
Sat 7/1108:15 -
2 stops37h 00m
Sat 14/1119:45 -
1 stop13h 10m
Deal found 10/10£546
Mon 9/1110:20 -
1 stop10h 20m
Mon 16/1117:55 -
1 stop18h 05m
Deal found 10/10£607
Tue 17/1117:30 -
1 stop27h 10m
Sun 22/1118:10 -
2 stops41h 50m
Deal found 9/10£649
Mon 23/1108:35 -
2 stops14h 40m
Sat 28/1119:40 -
2 stops13h 15m
Deal found 10/10£441
One-way flights from Cardiff to OntarioSearch for one-way flight options from Cardiff to Ontario. Find affordable one-way fares based on user searches. Data last updated 13 October 2026.
Search for one-way flight options from Cardiff to Ontario. Find affordable one-way fares based on user searches. Data last updated 13 October 2026.
Sun 20/1209:05 -
3 stops35h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 11/10£318
Sat 19/1207:55 -
2 stops33h 15m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 12/10£355
Mon 9/1117:30 -
3 stops27h 17m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 12/10£520
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 13 October 2026.
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 7,457,451 searches. Data last updated 13 October 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
Cheapest return flight
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Sun 20/12
09:05-15:50
3 stops35h 45m
Toronto Pearson Intl
Wed 31/12
00:00-06:00
Nonstop0h 00m
£318
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Sat 19/12
07:55-12:10
2 stops33h 15m
Toronto Pearson Intl
Wed 31/12
00:00-06:00
Nonstop0h 00m
£355
Fastest return journey
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Mon 9/11
08:35-15:50
1 stop12h 15m
Toronto Pearson Intl
Wed 31/12
00:00-06:00
Nonstop0h 00m
£542
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Mon 9/11
10:20-15:40
1 stop10h 20m
Toronto Pearson Intl
Mon 16/11
17:55-17:00
1 stop18h 05m
£607
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Thu 12/11
13:25-16:15
2 stops31h 50m
Toronto Pearson Intl
Thu 19/11
18:15-15:40
2 stops16h 25m
£623
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Mon 2/11
10:20-15:40
1 stop10h 20m
Toronto Pearson Intl
Mon 9/11
17:55-09:45
1 stop10h 50m
£632
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Mon 8/2
17:30-19:15
1 stop30h 45m
Toronto Pearson Intl
Tue 23/2
17:55-09:50
1 stop10h 55m
£638
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Mon 8/2
10:20-21:40
2 stops16h 20m
Toronto Pearson Intl
Tue 23/2
17:55-17:00
1 stop18h 05m
£644
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Mon 2/11
10:20-15:40
1 stop10h 20m
Toronto Pearson Intl
Mon 9/11
17:55-17:00
1 stop18h 05m
£650
CardiffToronto
CWL Cardiff Wales - YYZ Toronto Pearson Intl
CWLYYZ
Cardiff Wales
Sun 8/11
17:30-15:40
1 stop27h 10m
Toronto Pearson Intl
Sun 15/11
17:55-09:50
1 stop10h 55m
£665
Showing 1-10 of 13 resultsSorted by cheapest first
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.
CWL-YYZ
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
CWL-CAON
CWL-YYZ
How far ahead should I book a flight from Cardiff to Region of Ontario?
The price you pay for your flight from Cardiff to Region of Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 35 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 13 October 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.
Food
7.3
Comfort
7.7
Entertainment
7.2
Boarding
7.8
Overall
7.8
Crew
8.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Comfort
7.7
Entertainment
7.2
Boarding
7.8
Overall
7.8
Crew
8.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Comfort
7.7
Entertainment
7.2
Boarding
7.8
Overall
7.8
Crew
8.4
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
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.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Cardiff to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car hire and/or hotel booking to your travel itinerary.
Direct flights to Canada
Book a non-stop flight to one of these other cities located in Canada.
Search flights from Cardiff to Ontario by cabin class
Find flights from Cardiff to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Cardiff and Ontario flights
Browse other Cardiff and Ontario flight options. Last updated on 13 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
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 7,457,451 searches. Data last updated 13 October 2026.
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.