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Cheap flights from Cardiff to Ontario from £622

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — YYZ
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Ontario

Keep the following information in mind while searching for Cardiff to Ontario flight deals. Data was last updated 14 November 2025.

Round-trip from

£622

Popular in

November

Cheapest in

January

Average price

£852
9/3-13/3
  • 9/3-13/3
  • 2 total stops
  • 36h 25m total
  • Cardiff to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£81 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 14 November 2025.

Thu 25/1210:20CWL - YYZ
1 stop13h 55mDelta
Sun 11/118:13YYZ - CWL
2 stops34h 37mDelta
Deal found 13/11£736
Thu 25/1210:20CWL - YYZ
1 stop13h 55mDelta
Fri 9/106:00YYZ - CWL
2 stops22h 50mDelta
Deal found 13/11£765
Wed 24/1210:20CWL - YYZ
2 stops51h 38mDelta
Thu 8/106:00YYZ - CWL
2 stops22h 50mDelta
Deal found 13/11£768
Wed 24/1210:20CWL - YYZ
2 stops51h 38mDelta
Fri 9/106:00YYZ - CWL
2 stops22h 50mDelta
Deal found 13/11£799
Sun 28/1210:15CWL - YYZ
1 stop14h 00mDelta
Thu 8/112:07YYZ - CWL
2 stops16h 43mDelta
Deal found 13/11£861
Sun 28/1210:15CWL - YYZ
1 stop14h 00mDelta
Sat 10/118:13YYZ - CWL
2 stops17h 37mDelta
Deal found 13/11£891
Tue 30/1210:20CWL - YYZ
1 stop13h 55mDelta
Sat 10/117:50YYZ - CWL
1 stop10h 55mDelta
Deal found 13/11£1,011
Tue 30/1210:20CWL - YYZ
1 stop13h 55mDelta
Thu 8/117:50YYZ - CWL
1 stop11h 00mDelta
Deal found 13/11£1,027
Sat 27/1210:20CWL - YYZ
1 stop13h 55mDelta
Sat 10/117:50YYZ - CWL
1 stop10h 55mDelta
Deal found 13/11£1,364

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 14 November 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

Mon 9/3

23:30-14:15

1 stop18h 45m

Toronto Pearson Intl

Fri 13/3

22:00-19:40

1 stop17h 40m

£622

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Wed 25/3

10:20-11:18

2 stops28h 58m

Toronto Pearson Intl

Sun 29/3

18:08-16:45

2 stops41h 37m

£700

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Wed 25/3

10:20-11:18

2 stops28h 58m

Toronto Pearson Intl

Sun 29/3

16:45-16:45

1 stop19h 00m

£712

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 25/12

10:20-19:15

1 stop13h 55m

Toronto Pearson Intl

Thu 8/1

12:07-09:50

2 stops16h 43m

£736

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 25/12

10:20-19:15

1 stop13h 55m

Toronto Pearson Intl

Wed 7/1

18:13-09:50

2 stops34h 37m

£736

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Thu 25/12

10:20-19:15

1 stop13h 55m

Toronto Pearson Intl

Sun 11/1

18:13-09:50

2 stops34h 37m

£736

Flights are sorted by cheapest return flights first.

Deals found on 13/11

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 £94). Flying from Cardiff to Region of Ontario in August is currently the most expensive (average of £698). 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 14 November 2025.
Check out reviews from past customers who have flown with KLM and Virgin Atlantic 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
1,411 reviews
Check prices

Overall

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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?

    Virgin Atlantic can get you from Cardiff to Region of Ontario in just under 28h 58m. Your travel time can differ by up to . Airlines will cover a distance of 3432 mi.

  • 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 £94). Flying from Cardiff to Region of Ontario in August is currently the most expensive (average of £698). 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

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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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£471Average£744FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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.

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