The cheapest times to fly from ROS to LAS are

  • January 15th to February 11th
  • March 12th to June 10th (except the week of April 2nd)
  • July 30th to August 12th
  • November 5th to November 25th (except the week of November 12th)

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 LAS is late May to early June. Prices can be as high as $2286 for Friday flights during early January, or as low as $760 for Monday flights around late May to early June.


When to Fly to Las Vegas

Flying from Rosario (ROS) to Las Vegas, NV (LAS) will usually cost between $760 to $1535 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late May to early June with an average ticket price of $798. Due to high demand the most expensive time to fly is early January, with an average price of $1555. Planning your trip to low-cost times can easily save you $757 on economy flights and even more on first-class flights. Generally, any price below $1052 can be considered a good price for a round-trip ROS to LAS flight.

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

ROS to LAS Flight Prices

Compared to other flights, the ROS to LAS 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 $0.11, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to LAS, and Tuesday the cheapest day to fly back into ROS. Fridays 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 $205 (14%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $1020. Return trip prices are from the LAS 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 LAS can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 11 hour 38 minutes may not be realistic.


Flight Hacking ROS to LAS

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 LAS — but Champion Traveler does!

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

  • Price for both tickets: $832
  • Average savings: $221 (20.96%)

See ROS to SCL flights

Hack #2: Santiago (ROS > SCL > LAS)

  • Price for both tickets: $870
  • Average savings: $182 (17.3%)

See ROS to EZE flights

Hack #3: Lima (ROS > LIM > LAS)

  • Price for both tickets: $879
  • Average savings: $174 (16.49%)

See ROS to LIM flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Aerolineas Argentinas, Aeromexico, Alaska, American, Azul, COPA, Delta, Gol, LATAM, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from McCarran International Airport to Rosario Airport?

The distance between the two airports is roughly 5918 miles or 9524 kilometers.

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

The real-world flight time for a nonstop ROS to LAS flight is about 11 hour 38 minutes.

How many flights go between Rosario and Las Vegas, NV?

It depends on the day of the week and the date, but a typical day might have around 14 available flights from ROS to LAS.


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 LAS
Destination airport name McCarran International Airport
City Las Vegas, NV
Country the United States
Latitude 36.1
Longitude -115.2


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.