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Rosario

$838+ Cheap flights from O'Hare Intl (ORD) to Rosario (ROS)

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ROS
Mar 10 — Mar 171
Tue 3/10
Tue 3/17
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Rosario

Cheapest flights from O'Hare Intl to Rosario
Explore the most affordable flight options available from O'Hare Intl to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 8, 2026.

This Mytrip deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2310:55 am
ORD
-
ROS
3 stops27h 25m
Multiple Airlines
Mon 3/309:00 pm
ROS
-
ORD
3 stops28h 40m
Multiple Airlines
Deal found 2/5$999
This Expedia deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2311:10 am
ORD
-
ROS
2 stops41h 00m
LATAM Airlines
Mon 3/3012:10 pm
ROS
-
ORD
2 stops31h 00m
LATAM Airlines
Deal found 2/5$1,256
This Mytrip deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:45 am
ORD
-
ROS
2 stops26h 25m
Multiple Airlines
Sat 8/292:55 am
ROS
-
ORD
2 stops20h 25m
Multiple Airlines
Deal found 2/5$1,301
This Copa Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/238:34 am
ORD
-
ROS
1 stop13h 46m
Copa Airlines
Mon 3/305:12 am
ROS
-
ORD
1 stop21h 57m
Copa Airlines
Deal found 2/5$1,429
This LATAM Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:00 am
ORD
-
ROS
2 stops39h 40m
LATAM Airlines
Sun 3/82:45 am
ROS
-
ORD
2 stops23h 09m
LATAM Airlines
Deal found 2/7$1,706
This Copa Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:02 am
ORD
-
ROS
1 stop14h 11m
Copa Airlines
Sun 8/305:09 am
ROS
-
ORD
1 stop21h 53m
Copa Airlines
Deal found 2/5$1,985

Find flight deals from O'Hare Intl to Rosario

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Rosario (ROS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$999
(Mytrip)

One-way from

$838
(KAYAK)
Provider with most accurate pricing for Chicago O'Hare Intl-Rosario Fisherton flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Rosario Fisherton flights.
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From Chicago O'Hare Intl to Rosario Fisherton
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One-way flight from Chicago O'Hare Intl to Rosario Fisherton
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Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 2,558,603 searches. Data last updated February 8, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Rosario that are best for you.

Fly from

O'Hare Intl

Fly to

Rosario

Route

Depart

Return

Price

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Mon 3/23

10:55 am-4:20 pm

3 stops27h 25m

Rosario Fisherton

Mon 3/30

9:00 pm-11:40 pm

3 stops28h 40m

$999

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Mon 3/23

8:34 am-12:20 am

1 stop13h 46m

Rosario Fisherton

Mon 3/30

5:12 am-1:09 am

1 stop21h 57m

$1,429

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Fri 3/6

7:00 am-1:40 am

2 stops39h 40m

Rosario Fisherton

Sun 3/8

2:45 am-11:54 pm

2 stops23h 09m

$1,706

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Tue 3/10

8:34 am-3:53 am

1 stop17h 19m

Rosario Fisherton

Wed 3/18

5:20 am-1:04 am

1 stop21h 44m

$2,683

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Tue 3/10

8:34 am-3:53 am

1 stop17h 19m

Rosario Fisherton

Fri 3/20

5:20 am-1:04 am

1 stop21h 44m

$2,683

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Tue 3/10

11:55 am-2:00 am

2 stops36h 05m

Rosario Fisherton

Thu 3/19

2:55 am-6:00 pm

2 stops41h 05m

$4,860

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Tue 3/10

1:57 pm-2:00 am

2 stops34h 03m

Rosario Fisherton

Wed 3/18

2:55 am-1:52 pm

2 stops36h 57m

$4,860

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Tue 3/10

8:34 am-3:53 am

1 stop17h 19m

Rosario Fisherton

Wed 3/18

1:26 am-1:31 pm

1 stop14h 05m

$4,912

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Tue 8/4

12:10 pm-6:05 am

2 stops15h 55m

$838

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Tue 8/4

11:20 pm-9:25 am

2 stops32h 05m

$859

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 11 results
1
2
  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Rosario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Rosario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Rosario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Rosario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Rosario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from O'Hare Intl 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.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 Chicago O'Hare Intl?

    Rosario Fisherton (ROS), located 6.6 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Rosario. 0 airlines have flights to Fisherton from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Rosario Fisherton should not be difficult; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day.

  • How long is the flight from Chicago O'Hare Intl Airport to Rosario?

    Copa Airlines and LATAM Airlines can get you from Chicago O'Hare Intl Airport to Rosario in just under 13h 46m. Your travel time can differ by up to 25h 54m. The distance between Chicago O'Hare Intl Airport and Rosario is about 5449 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from O'Hare Intl to Rosario that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Rosario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Rosario?

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

  • Can I find deals for business class flights from O'Hare Intl to Rosario?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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.

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