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Cheap flights from Ontario to Rosario from C$ 678

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Rosario departing on 9/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Rosario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:00 p.m. - 7:35 a.m.
YYZ
-
ROS
32h 35m
2 stops
Multiple Airlines Logo
7:35 p.m. - 6:45 a.m.
ROS
-
YYZ
36h 10m
2 stops
C$ 1,353Multiple Airlines
Tue, 9 Jun - Tue, 16 Jun
Delta Logo
6:15 p.m. - 11:10 a.m.
YUL
-
ROS
38h 55m
2 stops
Delta Logo
12:10 p.m. - 11:51 p.m.
ROS
-
YUL
37h 41m
2 stops
C$ 1,606Delta
Mon, 2 Nov - Fri, 6 Nov
Delta Logo
6:15 p.m. - 11:10 a.m.
YUL
-
ROS
38h 55m
2 stops
Delta Logo
12:10 p.m. - 5:03 p.m.
ROS
-
YUL
30h 53m
2 stops
C$ 1,707Delta
Thu, 12 Nov - Mon, 16 Nov
Delta Logo
6:15 p.m. - 11:10 a.m.
YUL
-
ROS
38h 55m
2 stops
Delta Logo
12:10 p.m. - 11:51 p.m.
ROS
-
YUL
37h 41m
2 stops
C$ 1,828Delta
Mon, 2 Nov - Fri, 6 Nov
Delta Logo
6:15 p.m. - 11:10 a.m.
YUL
-
ROS
38h 55m
2 stops
Delta Logo
12:10 p.m. - 5:03 p.m.
ROS
-
YUL
30h 53m
2 stops
C$ 1,830Delta
Thu, 12 Nov - Mon, 16 Nov
Multiple Airlines Logo
10:00 p.m. - 7:35 a.m.
YYZ
-
ROS
32h 35m
2 stops
Multiple Airlines Logo
7:35 p.m. - 2:05 a.m.
ROS
-
YYZ
31h 30m
3 stops
C$ 1,885Multiple Airlines
Tue, 9 Jun - Tue, 16 Jun
Multiple Airlines Logo
8:30 a.m. - 12:11 a.m.
YYZ
-
ROS
14h 41m
1 stop
Multiple Airlines Logo
5:09 a.m. - 3:50 p.m.
ROS
-
YYZ
35h 41m
2 stops
C$ 1,904Multiple Airlines
Tue, 9 Jun - Tue, 16 Jun
Copa Airlines Logo
8:30 a.m. - 12:11 a.m.
YYZ
-
ROS
14h 41m
1 stop
Copa Airlines Logo
5:09 a.m. - 1:13 a.m.
ROS
-
YYZ
21h 04m
1 stop
C$ 2,235Copa Airlines
Tue, 9 Jun - Tue, 16 Jun
Avianca Logo
10:00 p.m. - 8:30 a.m.
YUL
-
ROS
32h 30m
2 stops
Avianca Logo
2:55 a.m. - 8:35 p.m.
ROS
-
YUL
19h 40m
2 stops
C$ 2,331Avianca
Mon, 2 Nov - Thu, 5 Nov

Delta flights from Region of Ontario to Rosario

Our best Delta deals on Region of Ontario to Rosario flight tickets
Delta
2 Nov
YUL6:15 p.m.Montreal Pierre Elliott Trudeau Intl
38h 55m
2 stops
ROS11:10 a.m.Rosario Fisherton
6 Nov
ROS12:10 p.m.Rosario Fisherton
37h 41m
2 stops
YUL11:51 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,606
Delta
12 Nov
YUL6:15 p.m.Montreal Pierre Elliott Trudeau Intl
38h 55m
2 stops
ROS11:10 a.m.Rosario Fisherton
16 Nov
ROS12:10 p.m.Rosario Fisherton
30h 53m
2 stops
YUL5:03 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,707
Delta
2 Nov
YUL6:15 p.m.Montreal Pierre Elliott Trudeau Intl
38h 55m
2 stops
ROS11:10 a.m.Rosario Fisherton
6 Nov
ROS12:10 p.m.Rosario Fisherton
37h 41m
2 stops
YUL11:51 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,828

momondo Fare Finder

 
Customize your flight search to find flights from Region of 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, momondo users made 96,600 searches. Data last updated 17 May 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

Tue 9/6

10:00 p.m.-7:35 a.m.

2 stops32h 35m

Rosario Fisherton

Tue 16/6

7:35 p.m.-6:45 a.m.

2 stops36h 10m

C$ 1,353

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Mon 2/11

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

2 stops38h 55m

Rosario Fisherton

Fri 6/11

12:10 p.m.-11:51 p.m.

2 stops37h 41m

C$ 1,606

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Thu 12/11

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

2 stops38h 55m

Rosario Fisherton

Mon 16/11

12:10 p.m.-5:03 p.m.

2 stops30h 53m

C$ 1,707

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Mon 2/11

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

2 stops38h 55m

Rosario Fisherton

Fri 6/11

12:10 p.m.-11:51 p.m.

2 stops37h 41m

C$ 1,828

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Thu 12/11

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

2 stops38h 55m

Rosario Fisherton

Mon 16/11

12:10 p.m.-5:03 p.m.

2 stops30h 53m

C$ 1,830

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Tue 9/6

10:00 p.m.-7:35 a.m.

2 stops32h 35m

Rosario Fisherton

Tue 16/6

7:35 p.m.-2:05 a.m.

3 stops31h 30m

C$ 1,885

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Tue 9/6

8:30 a.m.-12:11 a.m.

1 stop14h 41m

Rosario Fisherton

Tue 16/6

5:09 a.m.-3:50 p.m.

2 stops35h 41m

C$ 1,904
Quickest round-trip

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Tue 9/6

8:30 a.m.-12:11 a.m.

1 stop14h 41m

Rosario Fisherton

Tue 16/6

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

1 stop21h 04m

C$ 2,235

MontrealRosario

YUL - ROS

YULROS

Montreal Pierre Elliott Trudeau Intl

Mon 2/11

10:00 p.m.-8:30 a.m.

2 stops32h 30m

Rosario Fisherton

Thu 5/11

2:55 a.m.-8:35 p.m.

2 stops19h 40m

C$ 2,331
Cheapest one-way

TorontoRosario

YYZ - ROS

YYZROS

Toronto Pearson Intl

Tue 9/6

1:40 p.m.-7:35 a.m.

3 stops40h 55m

C$ 678

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Rosario from

How to get the cheapest flight ticket from Region of Ontario to Rosario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Rosario Fisherton?

Copa Airlines is the most popular carrier operating from Ontario to Rosario Fisherton

Cheap Region of Ontario to Rosario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Rosario

Fastest flight time

32h 35m

Direct flights

None
The fastest flight from Region of Ontario to Rosario takes 32h 35m
There are no direct flights from Region of Ontario to Rosario. There are no popular flight routes from Region of Ontario to Rosario.
Search flight deals

Frequently asked questions about flying from Ontario to Rosario

  • When did momondo last update prices for flights from Ontario to Rosario Fisherton Airport?

    Prices for flights from Ontario to Rosario Fisherton Airport are updated daily.

  • How old do you have to be to fly from Ontario to Rosario Fisherton Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Rosario Fisherton Airport.

  • What documentation or ID do you need to fly to Rosario Fisherton Airport?

    The required travel and health documents for your Rosario Fisherton Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Rosario Fisherton Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Rosario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Rosario for you.

Can I find flights from Ontario to Rosario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Rosario flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Rosario?

Once all potential Ontario to Rosario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Rosario right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Rosario, momondo offers a useful price alert feature which will track prices for flights to Rosario from Ontario and alert you when they change.

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