The cheapest times to fly from ROS to EWR are

  • January 15th to March 4th
  • August 6th to December 23rd (except the week of December 10th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ROS to EWR is late October to early November. Prices can be as high as $2512 for Saturday flights during early to mid July, or as low as $755 for Tuesday flights around late October to early November.


When to Fly to Newark

Flying from Rosario (ROS) to Newark, NJ (EWR) will usually cost between $787 to $1693 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October to early November with an average ticket price of $803. Due to high demand the most expensive time to fly is early to mid July, with an average price of $1897. Planning your trip to low-cost times can easily save you $1094 on economy flights and even more on first-class flights. Generally, any price below $955 can be considered a good price for a round-trip ROS to EWR flight.

See below for a graph of average weekly prices for the ROS to EWR route. All prices are for round-trip tickets in USD.

ROS to EWR Flight Prices

Compared to other flights, the ROS to EWR flight is priced close to the average and costs about as much as the average flight leaving from Rosario. The average price per mile (for a direct flight) is $0.12, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $203 (17%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $900. Return trip prices are from the EWR to ROS flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ROS to EWR can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 16 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from ROS to EWR while comparing.

Destination alternative #1: John F. Kennedy International Airport (JFK) in New York, NY

  • 21 miles (34 km) away from EWR
  • Usually 8.17% less expensive than EWR
  • 1-layover flights available

See ROS to JFK flights


Flight Hacking ROS to EWR

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ROS to EWR — but Champion Traveler does!

Hack #1: Ezeiza (ROS > EZE > EWR)

  • Price for both tickets: $903
  • Average savings: $52 (5.45%)

See ROS to AEP flights

Hack #2: Buenos Aires (ROS > AEP > EWR)

  • Price for both tickets: $932
  • Average savings: $23 (2.41%)

See ROS to EZE flights


Flight Questions Answered

Still have questions about flying from ROS to EWR? We’ve got answers.

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Aerolineas Argentinas, Air Canada, American, Avianca, Azul, COPA, Delta, Gol, JetBlue, LATAM, United, and potentially more during busy seasons.

How far away is it from Newark Liberty International Airport to Rosario Airport?

The distance between the two airports is roughly 5155 miles or 8296 kilometers.

How long does it take to fly from ROS to EWR?

The real-world flight time for a nonstop ROS to EWR flight is about 10 hour 16 minutes.

How many flights go between Rosario and Newark, NJ?

It depends on the day of the week and the date, but a typical day might have around 76 available flights from ROS to EWR.


Airport Location Info


Departing Airport

Origination code ROS
Origination airport name Rosario Airport
City Rosario
Country Argentina
Latitude -32.9
Longitude -60.8

Return Airport

Destination code EWR
Destination airport name Newark Liberty International Airport
City Newark, NJ
Country the United States
Latitude 40.7
Longitude -74.2


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.