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Cheap flights from Ontario to Rosario from C$ 534

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ROS
31 Aug — 7 Sep1
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 1 August 2026.

Tue 3/118:30 a.m.
YYZ
-
ROS
1 stop13h 46m
Copa Airlines
Wed 9/121:20 a.m.
ROS
-
YYZ
1 stop24h 49m
Copa Airlines
Deal found 29/7C$ 1,385
Fri 2/108:30 a.m.
YYZ
-
ROS
1 stop18h 17m
Copa Airlines
Tue 27/101:23 a.m.
ROS
-
YYZ
1 stop24h 52m
Copa Airlines
Deal found 31/7C$ 1,387
Fri 2/101:34 p.m.
YYZ
-
ROS
2 stops39h 36m
Multiple Airlines
Wed 28/104:50 a.m.
ROS
-
YYZ
2 stops31h 00m
Multiple Airlines
Deal found 31/7C$ 1,514
Mon 23/116:15 a.m.
YYZ
-
ROS
2 stops27h 00m
Delta
Thu 26/1112:30 p.m.
ROS
-
YYZ
2 stops35h 29m
Delta
Deal found 31/7C$ 1,577
Sun 13/97:00 a.m.
YUL
-
ROS
2 stops46h 10m
Delta
Wed 16/912:40 p.m.
ROS
-
YUL
2 stops36h 10m
Delta
Deal found 27/7C$ 1,580
Sat 22/88:40 a.m.
YUL
-
ROS
2 stops20h 40m
Multiple Airlines
Thu 27/83:39 a.m.
ROS
-
YUL
1 stop33h 36m
Multiple Airlines
Deal found 28/7C$ 1,591
Thu 15/108:55 p.m.
YYZ
-
ROS
2 stops37h 45m
Multiple Airlines
Thu 12/1112:30 p.m.
ROS
-
YYZ
2 stops37h 49m
Multiple Airlines
Deal found 29/7C$ 1,595
Thu 15/108:30 a.m.
YYZ
-
ROS
1 stop14h 47m
Copa Airlines
Thu 12/115:00 a.m.
ROS
-
YYZ
1 stop21h 09m
Copa Airlines
Deal found 29/7C$ 1,602
Tue 3/1110:00 a.m.
YYZ
-
ROS
1 stop14h 39m
Multiple Airlines
Wed 9/121:20 a.m.
ROS
-
YYZ
2 stops21h 00m
Multiple Airlines
Deal found 29/7C$ 1,640
Mon 17/811:40 a.m.
YYZ
-
ROS
2 stops41h 40m
Multiple Airlines
Sat 22/812:40 p.m.
ROS
-
YYZ
2 stops35h 55m
Multiple Airlines
Deal found 27/7C$ 1,674
Sat 22/88:35 a.m.
YUL
-
ROS
1 stop14h 37m
Copa Airlines
Thu 27/81:23 a.m.
ROS
-
YUL
1 stop24h 17m
Copa Airlines
Deal found 28/7C$ 1,848
Sun 13/97:00 a.m.
YUL
-
ROS
2 stops27h 40m
LATAM Airlines
Wed 16/912:40 p.m.
ROS
-
YUL
2 stops29h 56m
LATAM Airlines
Deal found 28/7C$ 1,865

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 1 August 2026.

Round-trip from

C$ 1,385

One-way from

C$ 534
Copa Airlines
  • Copa Airlines
  • 3/11-9/12
  • 2 total stops
  • 38h 35m total
  • Ontario to Rosario
Search Deals
13/9
  • 13/9
  • 2 total stops
  • 21h 14m 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 1 August 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

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Tue 12/1

7:29 a.m.-8:30 a.m.

2 stops23h 01m

Rosario Fisherton

Mon 15/2

1:12 a.m.-12:15 a.m.

1 stop25h 03m

C$ 1,441

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Mon 23/11

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

2 stops27h 00m

Rosario Fisherton

Thu 26/11

12:30 p.m.-9:59 p.m.

2 stops35h 29m

C$ 1,577

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Sun 13/9

7:00 a.m.-6:10 a.m.

2 stops46h 10m

Rosario Fisherton

Wed 16/9

12:40 p.m.-11:50 p.m.

2 stops36h 10m

C$ 1,580

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Thu 15/10

8:55 p.m.-11:40 a.m.

2 stops37h 45m

Rosario Fisherton

Thu 12/11

12:30 p.m.-12:19 a.m.

2 stops37h 49m

C$ 1,595

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Thu 15/10

8:30 a.m.-12:17 a.m.

1 stop14h 47m

Rosario Fisherton

Thu 12/11

5:00 a.m.-12:09 a.m.

1 stop21h 09m

C$ 1,602

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

9:20 p.m.-4:39 a.m.

3 stops30h 19m

Rosario Fisherton

Thu 27/8

3:39 a.m.-12:15 p.m.

1 stop33h 36m

C$ 1,657

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Mon 17/8

11:40 a.m.-6:20 a.m.

2 stops41h 40m

Rosario Fisherton

Sat 22/8

12:40 p.m.-11:35 p.m.

2 stops35h 55m

C$ 1,674

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Sat 16/1

12:45 p.m.-3:30 a.m.

2 stops36h 45m

Rosario Fisherton

Fri 19/2

2:30 a.m.-5:03 p.m.

2 stops40h 33m

C$ 1,741
Quickest round-trip

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Mon 17/8

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

1 stop14h 42m

Rosario Fisherton

Sat 22/8

5:09 a.m.-1:13 a.m.

1 stop21h 04m

C$ 1,768

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Sat 26/12

10:52 a.m.-2:39 a.m.

1 stop13h 47m

Rosario Fisherton

Thu 31/12

3:39 a.m.-9:52 a.m.

1 stop32h 13m

C$ 1,830

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/7

Showing 1-10 of 16 resultsSorted by cheapest first
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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 Delta and Copa Airlines fly from Region of Ontario to Rosario in about 14h 47m. The time it takes to get you to your destination can typically vary by up to 12h 13m. 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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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!

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