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Cheap flights from Cardiff to Ontario from £198

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — YYZ
25 Mar — 1 Apr1
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 23 February 2026.

Mon 1/611:35
CWL
-
YYZ
Nonstop7h 55m
WestJet
Mon 15/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 23/2£299
Sat 6/611:35
CWL
-
YYZ
Nonstop7h 55m
WestJet
Sun 14/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 20/2£309
Mon 25/511:35
CWL
-
YYZ
Nonstop7h 55m
WestJet
Sun 7/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 21/2£312
Mon 1/622:25
CWL
-
YYZ
2 stops23h 45m
Multiple Airlines
Mon 15/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 23/2£339
Thu 21/522:50
CWL
-
YYZ
1 stop22h 00m
Multiple Airlines
Mon 25/522:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 22/2£340
Mon 25/522:25
CWL
-
YYZ
2 stops23h 45m
Multiple Airlines
Sun 7/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 21/2£351
Sat 13/607:30
CWL
-
YYZ
1 stop10h 50m
Multiple Airlines
Sun 21/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 20/2£376
Thu 18/611:35
CWL
-
YYZ
Nonstop7h 55m
WestJet
Fri 3/722:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 20/2£396

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 23 February 2026.

Round-trip from

£299

One-way from

£198

Popular in

December

Cheapest in

January

Average price

£575

Good round-trip deal

£422 or less

Good one-way deal

£236 or less
WestJet
  • WestJet
  • 1/6-15/6
  • Nonstop
  • 15h 00m total
  • Cardiff to Ontario
Search Deals
1/5
  • 1/5
  • 2 total stops
  • 28h 00m 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 February 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 23 February 2026.
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

Thu 4/6

22:50-13:20

1 stop19h 30m

Toronto Pearson Intl

Sun 21/6

22:10-10:15

Nonstop7h 05m

£355

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 18/6

11:35-14:30

Nonstop7h 55m

Toronto Pearson Intl

Fri 3/7

22:10-10:15

Nonstop7h 05m

£407

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sat 23/5

07:30-13:20

1 stop10h 50m

Toronto Pearson Intl

Tue 26/5

18:15-23:25

2 stops24h 10m

£475

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Wed 15/7

23:50-18:50

2 stops24h 00m

Toronto Pearson Intl

Fri 31/7

22:10-10:15

Nonstop7h 05m

£564

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sun 5/4

21:45-16:00

2 stops23h 15m

Toronto Pearson Intl

Sun 12/4

22:00-22:00

1 stop19h 00m

£642

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sat 23/5

11:35-14:30

Nonstop7h 55m

Toronto Pearson Intl

Sat 30/5

21:35-21:20

1 stop18h 45m

£649

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Fri 12/6

09:45-20:50

2 stops16h 05m

Toronto Pearson Intl

Tue 23/6

16:45-16:45

1 stop19h 00m

£684

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Fri 1/5

22:45-21:45

2 stops28h 00m

£198

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 28/5

22:50-15:50

1 stop22h 00m

£209

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 6/8

11:35-14:30

Nonstop7h 55m

£268

Flights are sorted by cheapest return flights first.

Deals found on 22/2

Showing 1-10 of 14 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 £112). Flying from Cardiff to Region of Ontario in December is currently the most expensive (average of £594). 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.

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 23 February 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
7.7
Good
1,458 reviews
Check prices

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,458 reviews
KLM
7.7
Good
1,458 reviews
Check prices

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
WestJet
7.2
Good
3,273 reviews
KLM
7.7
Good
1,458 reviews
Check prices

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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?

    WestJet can get you from Cardiff to Region of Ontario in just under 7h 55m. Your travel time will be generally consistent. Airlines will cover a distance of 3432 mi. Most flights are nonstop.

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

    Looking at all options, your cheapest flight can be booked for £181. While the most popular route (Cardiff Wales - Toronto Pearson Intl) can be booked for £340 on average, our data indicates £362 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 £112). Flying from Cardiff to Region of Ontario in December is currently the most expensive (average of £594). 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

Browse thousands of different options on Cheapflights for your next trip

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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 23 February 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£369Average£508FlexibilityNo cancel feeOn-time60%
Search WestJet flights
KLMCheapest£413Average£664FlexibilityNo 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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