HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rosario

$341+ Cheap flights from Newark (EWR) 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ROS
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Newark to Rosario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Newark to Rosario

Cheapest flights from Newark to Rosario
Explore the most affordable flight options available from Newark to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.

This Ovago deal was found by Cheapflights users on 2/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/192:45 pm
EWR
-
ROS
1 stop32h 35m
Copa Airlines
Tue 4/75:12 am
ROS
-
EWR
1 stop35h 53m
Copa Airlines
Deal found 2/10$1,014
This Ovago deal was found by Cheapflights users on 2/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/112:45 pm
EWR
-
ROS
1 stop32h 35m
Copa Airlines
Wed 3/185:20 am
ROS
-
EWR
1 stop35h 28m
Copa Airlines
Deal found 2/11$1,018
This Mytrip deal was found by Cheapflights users on 2/10. 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.
Thu 3/1912:00 pm
EWR
-
ROS
3 stops24h 30m
Multiple Airlines
Tue 4/74:55 am
ROS
-
EWR
3 stops34h 50m
Multiple Airlines
Deal found 2/10$1,068
This Mytrip deal was found by Cheapflights users on 2/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:55 pm
EWR
-
ROS
3 stops21h 30m
Multiple Airlines
Wed 3/186:20 pm
ROS
-
EWR
3 stops30h 15m
Multiple Airlines
Deal found 2/11$1,200
This Gotogate deal was found by Cheapflights users on 2/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:00 am
EWR
-
ROS
3 stops43h 50m
Multiple Airlines
Tue 5/128:15 pm
ROS
-
EWR
3 stops60h 53m
Multiple Airlines
Deal found 2/9$1,467
This Ovago deal was found by Cheapflights users on 2/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/268:30 am
EWR
-
ROS
2 stops46h 20m
Multiple Airlines
Sun 7/265:09 am
ROS
-
EWR
1 stop24h 48m
Multiple Airlines
Deal found 2/10$1,561
This Mytrip deal was found by Cheapflights users on 2/10. 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.
Tue 2/104:30 pm
EWR
-
ROS
2 stops23h 00m
Multiple Airlines
Mon 2/169:05 am
ROS
-
EWR
2 stops33h 27m
Multiple Airlines
Deal found 2/10$1,570
This Ovago deal was found by Cheapflights users on 2/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2611:55 pm
EWR
-
ROS
1 stop23h 17m
Copa Airlines
Sat 7/251:23 am
ROS
-
EWR
1 stop28h 34m
Copa Airlines
Deal found 2/10$1,582

Find flight deals from Newark to Rosario

Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) 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 11, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$1,014
(Ovago)

One-way from

$341
(Kiwi.com)
Provider with most accurate pricing for Newark-Rosario Fisherton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Newark-Rosario Fisherton flights.
Search Deals
From Newark to Rosario Fisherton
Search Deals
One-way flight from Newark to Rosario Fisherton
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Newark 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 11, 2026.
Use the filters below to find and compare flights from Newark Airport to Rosario that are best for you.

Fly from

Newark

Fly to

Rosario

Route

Depart

Return

Price

NewarkRosario

EWR - ROS

EWRROS

Newark

Thu 3/19

2:45 pm-12:20 am

1 stop32h 35m

Rosario Fisherton

Tue 4/7

5:12 am-4:05 pm

1 stop35h 53m

$1,014

NewarkRosario

EWR - ROS

EWRROS

Newark

Wed 3/11

2:45 pm-12:20 am

1 stop32h 35m

Rosario Fisherton

Wed 3/18

5:20 am-3:48 pm

1 stop35h 28m

$1,018

NewarkRosario

EWR - ROS

EWRROS

Newark

Thu 3/19

12:00 pm-1:30 pm

3 stops24h 30m

Rosario Fisherton

Tue 4/7

4:55 am-2:45 pm

3 stops34h 50m

$1,068

NewarkRosario

EWR - ROS

EWRROS

Newark

Wed 3/11

6:55 pm-5:25 pm

3 stops21h 30m

Rosario Fisherton

Wed 3/18

6:20 pm-11:35 pm

3 stops30h 15m

$1,200

NewarkRosario

EWR - ROS

EWRROS

Newark

Tue 5/5

11:00 am-7:50 am

3 stops43h 50m

Rosario Fisherton

Tue 5/12

8:15 pm-8:08 am

3 stops60h 53m

$1,467

NewarkRosario

EWR - ROS

EWRROS

Newark

Fri 6/26

8:30 am-7:50 am

2 stops46h 20m

Rosario Fisherton

Sun 7/26

5:09 am-4:57 am

1 stop24h 48m

$1,561

NewarkRosario

EWR - ROS

EWRROS

Newark

Fri 6/26

11:55 pm-12:12 am

1 stop23h 17m

Rosario Fisherton

Sat 7/25

1:23 am-4:57 am

1 stop28h 34m

$1,582

NewarkRosario

EWR - ROS

EWRROS

Newark

Wed 3/11

7:00 pm-6:10 am

2 stops34h 10m

Rosario Fisherton

Wed 3/18

7:45 am-10:34 am

2 stops27h 49m

$1,929

NewarkRosario

EWR - ROS

EWRROS

Newark

Sun 3/15

12:00 pm-11:15 am

2 stops22h 15m

Rosario Fisherton

Sun 3/22

7:45 am-11:30 pm

2 stops16h 45m

$2,151

NewarkRosario

EWR - ROS

EWRROS

Newark

Tue 5/5

12:00 pm-7:50 am

3 stops42h 50m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 16 results
1
2
  • Most accurate provider: When it comes to deals on Newark Airport-Rosario flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Newark Airport-Rosario flight deals on Cheapflights vs. Ovago 90-95% of the time. Price accuracy is based on data collected from Newark Airport-Rosario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Newark Airport-Rosario flights, Cheapflights users trust Ovago the most. Ovago 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 Newark 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 Newark to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Newark 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 Newark 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 Newark?

    Located just 6.6 mi from the city center, Rosario Fisherton is the airport most travelers will use when flying to Rosario from Newark. Booking flights from Newark to Fisherton (ROS) should be relatively easy as there are 0 daily inbound flights from Newark from 0 different airlines.

  • How long is the flight from Newark Airport to Rosario?

    Copa Airlines can get you from Newark Airport to Rosario in just under 32h 35m. Your travel time can differ by up to . Newark Airport and Rosario are separated by a distance of 5153 mi.

  • Can I find deals for flights from Newark to Rosario that include hotel bookings?

    Yes. In addition to deals on Newark to Rosario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Newark to Rosario?

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

  • Can I find deals for business class flights from Newark to Rosario?

    Yes. Cheapflights offers flight deals from Newark 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.