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Cheap flights from Cardiff to Ontario from £188

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — YYZ
4 Mar — 11 Mar1
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 February 2026.

Sat 6/611:35
CWL
-
YYZ
Nonstop7h 55m
WestJet
Fri 19/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 1/2£321
Thu 4/611:35
CWL
-
YYZ
Nonstop7h 55m
WestJet
Mon 22/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 1/2£324
Mon 15/611:35
CWL
-
YYZ
Nonstop7h 55m
WestJet
Mon 22/622:10
YYZ
-
CWL
Nonstop7h 05m
WestJet
Deal found 1/2£325
Tue 5/523:15
CWL
-
YYZ
2 stops23h 00m
Multiple Airlines
Fri 22/522:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 1/2£338
Tue 19/523:15
CWL
-
YYZ
2 stops20h 45m
Multiple Airlines
Mon 8/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/2£340
Tue 19/523:15
CWL
-
YYZ
2 stops20h 45m
Multiple Airlines
Wed 10/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/2£340
Sun 10/521:45
CWL
-
YYZ
2 stops24h 30m
Multiple Airlines
Sun 24/522:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 1/2£341
Fri 5/622:45
CWL
-
YYZ
2 stops21h 15m
Multiple Airlines
Sun 21/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 1/2£342
Tue 12/523:15
CWL
-
YYZ
1 stop19h 05m
Multiple Airlines
Sun 24/522:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/2£345
Mon 18/522:25
CWL
-
YYZ
1 stop21h 30m
Multiple Airlines
Mon 1/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/2£345
Mon 18/522:25
CWL
-
YYZ
1 stop21h 30m
Multiple Airlines
Sun 7/622:10
YYZ
-
CWL
Nonstop7h 05m
Multiple Airlines
Deal found 2/2£346

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 February 2026.

Round-trip from

£321

One-way from

£188

Popular in

December

Cheapest in

January

Average price

£567

Good round-trip deal

£369 or less

Good one-way deal

£178 or less
WestJet
  • WestJet
  • 6/6-19/6
  • Nonstop
  • 15h 00m total
  • Cardiff to Ontario
Search Deals
10/6
  • 10/6
  • 2 total stops
  • 22h 25m total
  • Cardiff to Ontario
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£136 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£42 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 2 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

Fri 13/3

22:25-14:15

1 stop19h 50m

Toronto Pearson Intl

Fri 20/3

22:30-19:40

1 stop17h 10m

£386

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 28/7

11:35-14:30

Nonstop7h 55m

Toronto Pearson Intl

Wed 12/8

22:10-10:15

Nonstop7h 05m

£403

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

£406

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Fri 22/5

22:45-13:20

1 stop19h 35m

Toronto Pearson Intl

Tue 9/6

21:30-23:25

1 stop20h 55m

£421

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 28/7

11:35-14:30

Nonstop7h 55m

Toronto Pearson Intl

Fri 7/8

22:10-10:15

Nonstop7h 05m

£453

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Mon 27/7

11:35-14:30

Nonstop7h 55m

Toronto Pearson Intl

Sun 2/8

22:10-10:15

Nonstop7h 05m

£459

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Mon 20/7

11:35-14:30

Nonstop7h 55m

Toronto Pearson Intl

Mon 27/7

18:20-22:50

2 stops23h 30m

£511

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 28/7

23:15-15:00

2 stops20h 45m

Toronto Pearson Intl

Mon 3/8

22:10-10:15

Nonstop7h 05m

£565

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Tue 3/3

10:20-19:15

1 stop13h 55m

Toronto Pearson Intl

Tue 10/3

22:15-16:55

1 stop14h 40m

£585

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Wed 10/6

23:50-17:15

2 stops22h 25m

£188

Flights are sorted by cheapest return flights first.

Deals found on 1/2

Showing 1-10 of 15 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 £91). Flying from Cardiff to Region of Ontario in December is currently the most expensive (average of £585). 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 2 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
1,448 reviews
Check prices

Boarding

7.8

Comfort

7.6

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,448 reviews
KLM
7.7
Good
1,448 reviews
Check prices

Boarding

7.8

Comfort

7.6

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
WestJet
7.2
Good
3,254 reviews
KLM
7.7
Good
1,448 reviews
Check prices

Boarding

7.8

Comfort

7.6

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 £154. While the most popular route (Cardiff Wales - Toronto Pearson Intl) can be booked for £405 on average, our data indicates £338 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 £91). Flying from Cardiff to Region of Ontario in December is currently the most expensive (average of £585). 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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Alternative routes for Cardiff to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£341Average£553FlexibilityNo cancel feeOn-time60%
Search WestJet flights
KLMCheapest£406Average£629FlexibilityNo 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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