Find flights
When to book
Airlines
FAQs

Cheap flights from Cardiff to Ontario from C$ 684

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — YYZ
5 Aug — 12 Aug1
1 adult

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 31 July 2025.

Round-trip from

C$ 684

Popular in

July

Cheapest in

March

Average price

C$ 1,683
14/9-21/9
  • 14/9-21/9
  • 3 total stops
  • 47h 35m total
  • Cardiff to Ontario
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 326 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 61 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Cardiff to Ontario

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 31 July 2025.

Sun 14/911:00 a.m.CWL - YYZ
2 stops38h 00mMultiple Airlines
Sun 21/910:10 p.m.YYZ - CWL
1 stop9h 35mMultiple Airlines
Deal found 31/7C$ 684
Sun 14/99:50 a.m.CWL - YYZ
1 stop15h 05mKLM
Sun 21/94:35 p.m.YYZ - CWL
1 stop11h 40mKLM
Deal found 31/7C$ 973

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 31 July 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

Sun 14/9

11:00 a.m.-8:00 p.m.

2 stops38h 00m

Toronto Pearson Intl

Sun 21/9

10:10 p.m.-12:45 p.m.

1 stop9h 35m

C$ 684

CardiffToronto

CWL - YYZ

CWLYYZ

Cardiff Wales

Sun 14/9

9:50 a.m.-7:55 p.m.

1 stop15h 05m

Toronto Pearson Intl

Sun 21/9

4:35 p.m.-9:15 a.m.

1 stop11h 40m

C$ 973

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

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 round-trip 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, January is the cheapest month in which you can book a flight from Cardiff to Region of Ontario (average of C$ 167). Flying from Cardiff to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 to fly round-trip 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 31 July 2025.
Check out reviews from past customers who have flown with KLM 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
7.8
Good
1,383 reviews
Check prices

Food

7.3

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,383 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Food

7.3

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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?

    Located just 14.6 km from the city centre, Cardiff Wales (CWL) is the airport most travellers will use when flying to Ontario from Cardiff.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Cardiff to Region of Ontario (average of C$ 167). Flying from Cardiff to Region of Ontario in July is currently the most expensive (average of C$ 258). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Cardiff to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Manchester to Pearson Intl flights
Manchester to Vancouver Intl flights
Manchester to Abbotsford flights
Manchester to Calgary flights
Manchester to Pierre Elliott Trudeau Intl flights
Manchester to Edmonton flights
Manchester to Ottawa flights
Manchester to Halifax flights
Bristol to Pearson Intl flights
Manchester to Winnipeg flights
Bristol to Vancouver Intl flights
Cardiff to Vancouver Intl flights
Bristol to Pierre Elliott Trudeau Intl flights
Cardiff to Pearson Intl flights
Manchester to London flights
Manchester to Québec City flights
Bristol to Calgary flights
Manchester to Thunder Bay flights
Manchester to Saskatoon flights
Manchester to Hamilton flights
Manchester to Whitehorse flights
Bristol to London flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Cardiff to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Ontario?

Cheapflights simply makes it quick and affordable to book flights from Cardiff to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Cardiff to Ontario with no change fees?

Need flexible booking options for your flight to Ontario from Cardiff? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Cardiff to Ontario become cheaper?

Not ready to book yet? You can track prices for flights from Cardiff to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.