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Cheap flights from Ontario to Rosario from C$ 552

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ROS
5 Aug — 12 Aug1
1 adult

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 31 July 2025.

Round-trip from

C$ 1,373

One-way from

C$ 552
Copa Airlines
  • Copa Airlines
  • 21/10-22/10
  • 2 total stops
  • 39h 03m total
  • Ontario to Rosario
Search Deals
19/8
  • 19/8
  • 3 total stops
  • 46h 08m total
  • Ontario to Rosario
Search Deals

Find flight deals from Ontario to Rosario

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 31 July 2025.

Tue 21/109:00 a.m.YYZ - ROS
1 stop14h 13mCopa Airlines
Wed 22/101:23 a.m.ROS - YYZ
1 stop24h 50mCopa Airlines
Deal found 29/7C$ 1,373
Wed 22/108:41 a.m.YUL - ROS
1 stop14h 32mCopa Airlines
Sat 25/101:22 a.m.ROS - YUL
1 stop24h 17mCopa Airlines
Deal found 30/7C$ 1,585
Thu 30/107:00 a.m.YUL - ROS
3 stops32h 45mMultiple Airlines
Sat 8/118:25 p.m.ROS - YUL
3 stops41h 19mMultiple Airlines
Deal found 29/7C$ 1,604

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 31 July 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

Tue 21/10

9:00 a.m.-12:13 a.m.

1 stop14h 13m

Rosario Fisherton

Wed 22/10

1:23 a.m.-1:13 a.m.

1 stop24h 50m

C$ 1,373

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Wed 22/10

8:41 a.m.-12:13 a.m.

1 stop14h 32m

Rosario Fisherton

Sat 25/10

1:22 a.m.-12:39 a.m.

1 stop24h 17m

C$ 1,585

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

7:00 a.m.-4:45 p.m.

3 stops32h 45m

Rosario Fisherton

Sat 8/11

8:25 p.m.-11:44 a.m.

3 stops41h 19m

C$ 1,604

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Tue 19/8

8:42 a.m.-7:50 a.m.

3 stops46h 08m

C$ 552

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Sat 13/9

11:36 a.m.-6:05 a.m.

2 stops17h 29m

C$ 696

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Tue 19/8

7:00 a.m.-6:05 a.m.

2 stops22h 05m

C$ 721

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Wed 13/8

8:42 a.m.-12:14 a.m.

1 stop14h 32m

C$ 1,131

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/7

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.

Reviews of airlines servicing Rosario

Get insights into the airlines that provide service to Rosario. 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 Rosario. Reviews last updated 31 July 2025.
Read reviews from past customers who have flown LATAM Airlines,Copa Airlines, andGOL from Ontario to Rosario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,822 reviews
Check prices

Overall

7.5

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
LATAM Airlines
7.5
Good
1,822 reviews
LATAM Airlines
7.5
Good
1,822 reviews
Check prices

Overall

7.5

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Copa Airlines
7.5
Good
1,493 reviews
LATAM Airlines
7.5
Good
1,822 reviews
Check prices

Overall

7.5

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
GOL
7.3
Good
1,091 reviews
LATAM Airlines
7.5
Good
1,822 reviews
Check prices

Overall

7.5

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

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.

  • What are the cheapest airlines to fly from Region of Ontario to Rosario one-way?

    The cheapest airline one-way is LATAM Airlines, with whom users have recently found tickets for as low as C$ 696. However, be on the lookout for offers from GOL and Copa Airlines, as they are both options that can get you from Region of Ontario to Rosario for a low price.

  • 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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Alternative routes for Ontario to Rosario

See prices for flight routes from nearby airports that may be better suited for you.
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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.

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