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Cheap flights from Ontario to Rosario from C$ 1,632

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ROS
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ontario to Rosario

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Best flights from Ontario to Rosario
Discover carefully curated flight deals from Ontario to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 November 2025.

Thu 5/26:00 a.m.YYZ - ROS
2 stops42h 00mAmerican Airlines
Sun 8/22:55 a.m.ROS - YYZ
2 stops44h 56mAmerican Airlines
Deal found 2/11C$ 1,632
Thu 5/28:30 a.m.YYZ - ROS
1 stop13h 50mCopa Airlines
Mon 9/25:20 a.m.ROS - YYZ
1 stop20h 49mCopa Airlines
Deal found 1/11C$ 1,912

Cheap flight deals from Ontario to Rosario

Keep the following information in mind while searching for Ontario to Rosario flight deals. Data was last updated 3 November 2025.

Round-trip from

C$ 1,632
American Airlines
  • American Airlines
  • 5/2-8/2
  • 4 total stops
  • 86h 56m total
  • Ontario to Rosario
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Rosario 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 3 November 2025.
Use the filters below to find and compare flights from Ontario to Rosario that are best for you.

Fly from

Ontario

Fly to

Rosario

Route

Depart

Return

Price

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Thu 5/2

6:00 a.m.-2:00 a.m.

2 stops42h 00m

Rosario Fisherton

Sun 8/2

2:55 a.m.-9:51 p.m.

2 stops44h 56m

C$ 1,632

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Thu 5/2

8:30 a.m.-12:20 a.m.

1 stop13h 50m

Rosario Fisherton

Mon 9/2

5:20 a.m.-12:09 a.m.

1 stop20h 49m

C$ 1,912

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Best time to book a flight from Ontario to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Ontario 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 Ontario to Rosario
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Rosario. 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 into for flights to Rosario from Ontario?

    For a flight from Ontario to Rosario, you will be flying into Fisherton. Rosario Fisherton (ROS) is just 10.7 km from the centre of the city.

  • How long is the flight from Region of Ontario to Rosario?

    Airlines like American Airlines and Copa Airlines fly from Region of Ontario to Rosario in about 13h 50m. The time it takes to get you to your destination can typically vary by up to 28h 10m. Airlines will cover a distance of 8723 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Ontario to Rosario that include hotel bookings?

    Yes. In addition to deals on Ontario to Rosario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Rosario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Rosario.

  • Can I find deals for business class flights from Ontario to Rosario?

    Yes. Cheapflights offers flight deals from Ontario to Rosario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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

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

Yes, we can. To see specific flights from Ontario to Rosario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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