Cheap flights from Chicago O'Hare Intl Airport to Rosario from $944

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Rosario departing on 9/7. 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 Chicago O'Hare Intl Airport to Rosario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:30 am - 10:45 am
ORD
-
ROS
27h 15m
2 stops
Multiple Airlines Logo
3:39 am - 11:12 am
ROS
-
ORD
33h 33m
1 stop
$944Multiple Airlines
Mon, Sep 7 - Thu, Sep 24
Multiple Airlines Logo
12:12 pm - 3:35 pm
ORD
-
ROS
25h 23m
2 stops
Multiple Airlines Logo
3:39 am - 11:12 am
ROS
-
ORD
33h 33m
1 stop
$1,046Multiple Airlines
Sat, Sep 12 - Thu, Sep 24
Multiple Airlines Logo
6:45 am - 11:15 am
ORD
-
ROS
26h 30m
2 stops
Multiple Airlines Logo
3:39 am - 11:12 am
ROS
-
ORD
33h 33m
1 stop
$1,088Multiple Airlines
Fri, Sep 11 - Thu, Sep 24
Multiple Airlines Logo
11:20 pm - 2:33 am
ORD
-
ROS
25h 13m
2 stops
Multiple Airlines Logo
3:39 am - 9:20 pm
ROS
-
ORD
43h 41m
2 stops
$1,205Multiple Airlines
Wed, Sep 9 - Tue, Sep 22
Delta Logo
1:15 pm - 6:10 am
ORD
-
ROS
38h 55m
2 stops
Delta Logo
12:40 pm - 10:00 am
ROS
-
ORD
23h 20m
2 stops
$1,307Delta
Sun, Sep 6 - Mon, Sep 21
Multiple Airlines Logo
9:26 am - 11:40 am
ORD
-
ROS
24h 14m
2 stops
Multiple Airlines Logo
3:39 am - 11:12 am
ROS
-
ORD
33h 33m
1 stop
$1,308Multiple Airlines
Thu, Sep 10 - Thu, Sep 24
Multiple Airlines Logo
8:01 am - 6:10 am
ORD
-
ROS
20h 09m
2 stops
Multiple Airlines Logo
3:39 am - 11:12 am
ROS
-
ORD
33h 33m
1 stop
$1,315Multiple Airlines
Tue, Sep 8 - Thu, Sep 24
Multiple Airlines Logo
7:35 am - 11:40 am
ORD
-
ROS
26h 05m
2 stops
Multiple Airlines Logo
3:39 am - 11:12 am
ROS
-
ORD
33h 33m
1 stop
$1,379Multiple Airlines
Sun, Sep 6 - Thu, Sep 24
LATAM Airlines Logo
8:15 am - 11:40 am
ORD
-
ROS
25h 25m
2 stops
LATAM Airlines Logo
7:40 am - 10:00 am
ROS
-
ORD
28h 20m
2 stops
$1,399LATAM Airlines
Fri, Sep 18 - Sun, Sep 27
Avianca Logo
11:20 pm - 11:55 am
ORD
-
ROS
34h 35m
2 stops
Avianca Logo
2:10 am - 9:20 pm
ROS
-
ORD
45h 10m
2 stops
$1,426Avianca
Fri, Sep 18 - Sat, Sep 26

Copa Airlines flights from Chicago O'Hare Intl Airport to Rosario

Our best Copa Airlines deals on Chicago O'Hare Intl Airport to Rosario flight tickets
Copa Airlines
Sep 9
ORD8:01 amChicago O'Hare Intl
17h 46m
1 stop
ROS3:47 amRosario Fisherton
Sep 22
ROS1:23 amRosario Fisherton
25h 39m
1 stop
ORD1:02 amChicago O'Hare Intl
$1,609
Copa Airlines
Jun 14
ORD3:21 pmChicago O'Hare Intl
30h 50m
1 stop
ROS12:11 amRosario Fisherton
Jun 17
ROS1:23 amRosario Fisherton
14h 43m
1 stop
ORD2:06 pmChicago O'Hare Intl
$3,310
Copa Airlines
Sep 25
ORD10:25 amChicago O'Hare Intl
15h 22m
2 stops
ROS3:47 amRosario Fisherton
Oct 3
ROS1:23 amRosario Fisherton
14h 36m
1 stop
ORD1:59 pmChicago O'Hare Intl
$3,428

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 832,500 searches. Data last updated May 23, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Mon 9/7

5:30 am-10:45 am

2 stops27h 15m

Rosario Fisherton

Thu 9/24

3:39 am-11:12 am

1 stop33h 33m

$944

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Sat 9/12

12:12 pm-3:35 pm

2 stops25h 23m

Rosario Fisherton

Thu 9/24

3:39 am-11:12 am

1 stop33h 33m

$1,046

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Fri 9/11

6:45 am-11:15 am

2 stops26h 30m

Rosario Fisherton

Thu 9/24

3:39 am-11:12 am

1 stop33h 33m

$1,088

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Wed 9/9

11:20 pm-2:33 am

2 stops25h 13m

Rosario Fisherton

Tue 9/22

3:39 am-9:20 pm

2 stops43h 41m

$1,205

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Sun 9/6

1:15 pm-6:10 am

2 stops38h 55m

Rosario Fisherton

Mon 9/21

12:40 pm-10:00 am

2 stops23h 20m

$1,307

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Thu 9/10

9:26 am-11:40 am

2 stops24h 14m

Rosario Fisherton

Thu 9/24

3:39 am-11:12 am

1 stop33h 33m

$1,308
Quickest round-trip

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Tue 9/8

8:01 am-6:10 am

2 stops20h 09m

Rosario Fisherton

Thu 9/24

3:39 am-11:12 am

1 stop33h 33m

$1,315

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Sun 9/6

7:35 am-11:40 am

2 stops26h 05m

Rosario Fisherton

Thu 9/24

3:39 am-11:12 am

1 stop33h 33m

$1,379

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Fri 9/18

8:15 am-11:40 am

2 stops25h 25m

Rosario Fisherton

Sun 9/27

7:40 am-10:00 am

2 stops28h 20m

$1,399

ChicagoRosario

ORD - ROS

ORDROS

Chicago O'Hare Intl

Fri 9/18

11:20 pm-11:55 am

2 stops34h 35m

Rosario Fisherton

Sat 9/26

2:10 am-9:20 pm

2 stops45h 10m

$1,426

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Rosario from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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

Can stopping save me money on Chicago O'Hare Intl Airport to Rosario flights?

You could potentially save up to 18% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Rosario flight.

When to book flights from Chicago O'Hare Intl Airport to Rosario

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Rosario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Rosario (ORD to ROS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Rosario

Fastest flight time

61h 20m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Rosario takes 61h 20m
There are no direct flights from Chicago O'Hare Intl Airport to Rosario. There are no popular flight routes from Chicago O'Hare Intl Airport to Rosario.

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Rosario

  • How far is Chicago O'Hare Intl to Rosario Fisherton by plane?

    Chicago O'Hare Intl and Rosario Fisherton are 5454.6 mi apart from one another. In terms of flight time, this usually takes a little over 61h 20m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Rosario Fisherton Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Rosario Fisherton Airport refresh daily.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Rosario Fisherton Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport 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 Chicago to Rosario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Rosario from Chicago.

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

momondo does allow users to show only those flights to Rosario from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Chicago to Rosario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Chicago to Rosario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Rosario and let you know when they change.

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1 adult
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