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$1,463+ Cheap flights from O'Hare Intl (ORD) to Rosario (ROS)

This is the cheapest round-trip 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.
ORD — ROS
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Cheap 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 November 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,463
(Copa Airlines)
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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Find flight deals from O'Hare Intl to Rosario

Best flights from O'Hare Intl to Rosario
Discover carefully curated flight deals from O'Hare Intl to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 12, 2025.

This Copa Airlines deal was found by Cheapflights users on 11/9. 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.
Sun 2/87:34 amORD - ROS
1 stop13h 46mCopa Airlines
Tue 2/105:20 amROS - ORD
1 stop21h 44mCopa Airlines
Deal found 11/9$1,463
This KAYAK deal was found by Cheapflights users on 11/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/227:34 amORD - ROS
1 stop13h 46mCopa Airlines
Wed 2/251:34 amROS - ORD
1 stop25h 30mCopa Airlines
Deal found 11/11$2,231
This KAYAK deal was found by Cheapflights users on 11/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/229:05 amORD - ROS
2 stops37h 55mAmerican Airlines
Wed 2/252:55 amROS - ORD
2 stops44h 00mAmerican Airlines
Deal found 11/11$5,959

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 November 12, 2025.
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

Sun 2/8

7:34 am-12:20 am

1 stop13h 46m

Rosario Fisherton

Tue 2/10

5:20 am-12:04 am

1 stop21h 44m

$1,463

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Sun 2/22

7:34 am-12:20 am

1 stop13h 46m

Rosario Fisherton

Wed 2/25

1:34 am-12:04 am

1 stop25h 30m

$2,231

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Sun 2/22

9:05 am-2:00 am

2 stops37h 55m

Rosario Fisherton

Wed 2/25

2:55 am-7:55 pm

2 stops44h 00m

$5,959

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Compare providers for flights from O'Hare Intl to Rosario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Rosario in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Rosario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago O'Hare Intl Airport-Rosario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 can get you from Chicago O'Hare Intl Airport to Rosario in just under 13h 46m. Your travel time can differ by up to . The distance between Chicago O'Hare Intl Airport and Rosario is about 5449 mi.

  • 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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