Find flights
When to book
FAQs

Cheap flights from Ontario to Rosario from C$ 1,046

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ROS
21 Jul — 28 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Rosario

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Rosario
Explore the most affordable flight options available from Ontario to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 June 2026.

Fri 2/108:30 a.m.
YYZ
-
ROS
1 stop18h 17m
Copa Airlines
Tue 27/105:09 a.m.
ROS
-
YYZ
1 stop21h 06m
Copa Airlines
Deal found 20/6C$ 1,397
Fri 2/106:25 p.m.
YYZ
-
ROS
2 stops34h 45m
Delta
Tue 27/104:45 p.m.
ROS
-
YYZ
2 stops18h 39m
Delta
Deal found 20/6C$ 1,537
Mon 23/116:00 p.m.
YYZ
-
ROS
2 stops34h 05m
Delta
Fri 27/117:35 a.m.
ROS
-
YYZ
2 stops31h 34m
Delta
Deal found 17/6C$ 1,538
Sun 20/1212:05 p.m.
YYZ
-
ROS
2 stops21h 05m
Delta
Sun 27/127:35 a.m.
ROS
-
YYZ
2 stops32h 04m
Delta
Deal found 19/6C$ 1,804
Thu 24/125:15 p.m.
YYZ
-
ROS
2 stops39h 55m
Multiple Airlines
Wed 30/127:35 a.m.
ROS
-
YYZ
2 stops35h 55m
Multiple Airlines
Deal found 19/6C$ 1,818
Tue 22/126:20 a.m.
YYZ
-
ROS
2 stops21h 45m
Multiple Airlines
Wed 30/127:35 a.m.
ROS
-
YYZ
2 stops30h 38m
Multiple Airlines
Deal found 19/6C$ 1,821
Thu 24/129:00 a.m.
YYZ
-
ROS
1 stop15h 39m
Multiple Airlines
Mon 28/127:50 p.m.
ROS
-
YYZ
2 stops30h 00m
Multiple Airlines
Deal found 19/6C$ 1,831
Fri 2/108:30 a.m.
YYZ
-
ROS
1 stop18h 17m
Multiple Airlines
Mon 26/101:23 a.m.
ROS
-
YYZ
2 stops19h 42m
Multiple Airlines
Deal found 20/6C$ 1,832
Tue 22/126:20 a.m.
YYZ
-
ROS
2 stops21h 45m
Multiple Airlines
Tue 29/124:45 p.m.
ROS
-
YYZ
2 stops24h 13m
Multiple Airlines
Deal found 19/6C$ 1,842
Thu 16/78:55 a.m.
YYZ
-
ROS
2 stops26h 10m
Multiple Airlines
Thu 23/77:15 p.m.
ROS
-
YYZ
2 stops29h 15m
Multiple Airlines
Deal found 18/6C$ 1,893
Sat 31/106:15 p.m.
YUL
-
ROS
2 stops39h 55m
Delta
Tue 3/114:45 p.m.
ROS
-
YUL
2 stops20h 59m
Delta
Deal found 19/6C$ 2,584

Find flight deals from Ontario to Rosario

Keep the following information in mind while searching for Ontario to Rosario flight deals. Data was last updated 21 June 2026.

Round-trip from

C$ 1,397

One-way from

C$ 1,046
Copa Airlines
  • Copa Airlines
  • 2/10-27/10
  • 2 total stops
  • 39h 23m total
  • Ontario to Rosario
Search Deals
Delta
  • Delta
  • 2/8
  • 2 total stops
  • 34h 41m total
  • Ontario to Rosario
Search Deals

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 21 June 2026.
Use the filters below to find and compare flights from Ontario to Rosario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Fri 2/10

8:30 a.m.-3:47 a.m.

1 stop18h 17m

Rosario Fisherton

Tue 27/10

5:09 a.m.-1:15 a.m.

1 stop21h 06m

C$ 1,397

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Fri 2/10

6:25 p.m.-6:10 a.m.

2 stops34h 45m

Rosario Fisherton

Tue 27/10

4:45 p.m.-10:24 a.m.

2 stops18h 39m

C$ 1,537

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Mon 23/11

6:00 p.m.-6:05 a.m.

2 stops34h 05m

Rosario Fisherton

Fri 27/11

7:35 a.m.-1:09 p.m.

2 stops31h 34m

C$ 1,538
Quickest round-trip

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Fri 2/10

8:30 a.m.-3:47 a.m.

1 stop18h 17m

Rosario Fisherton

Mon 26/10

1:23 a.m.-8:05 p.m.

2 stops19h 42m

C$ 1,832

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Thu 16/7

8:55 a.m.-12:05 p.m.

2 stops26h 10m

Rosario Fisherton

Thu 23/7

7:15 p.m.-11:30 p.m.

2 stops29h 15m

C$ 1,893

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Sat 31/10

6:15 p.m.-11:10 a.m.

2 stops39h 55m

Rosario Fisherton

Tue 3/11

4:45 p.m.-11:44 a.m.

2 stops20h 59m

C$ 2,584
Cheapest one-way

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Sun 2/8

6:29 p.m.-6:10 a.m.

2 stops34h 41m

C$ 1,046

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Mon 28/9

11:00 p.m.-6:10 a.m.

3 stops30h 10m

C$ 1,641
Quickest one-way

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Mon 28/9

8:30 a.m.-3:47 a.m.

1 stop18h 17m

C$ 2,601

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/6

Sorted by cheapest first

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 Copa Airlines and Delta fly from Region of Ontario to Rosario in about 18h 17m. The time it takes to get you to your destination can typically vary by up to 16h 28m. 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

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.

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 Ontario to Rosario?

Cheapflights makes it easy to find Ontario to Rosario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights simply makes it quick and affordable to book flights from Ontario to Rosario 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 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!

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.