Q: E

Most accurate provider : When it comes to deals on Washington, D.C.-Rosario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Rosario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Rosario flight searches over the past month and is updated monthly.

Q: E

Most trusted provider : When it comes to deals on Washington, D.C.-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 Washington, D.C.-Rosario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Question 1

How long is the flight from Washington, D.C. to Rosario?

Accepted Answer

There are many flights that can get you from Washington, D.C. to Rosario in 13h 51m. Fly via Copa Airlines or LATAM Airlines to get the fastest option. The distance from Washington, D.C. to Rosario is about 5075 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

Question 2

E

Accepted Answer

In terms of precipitation, rainfall in Rosario ranges from 1.2 - 5.9 inches per month. March is typically the wettest month, when rainfall can reach 5.9 in. July is typically the driest time to visit Rosario when rainfall is around 1.2 in.

Question 3

E

Accepted Answer

If weather is an important factor for your trip to Rosario, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 50.0 F).

Question 4

What are the most popular routes from Washington, D.C. to Rosario?

Accepted Answer

The most popular route from Washington, D.C. to Rosario is Washington, D.C. Dulles Intl - Rosario Fisherton. You may also consider Baltimore/Washington - Rosario Fisherton or Washington, D.C. Reagan-National - Rosario Fisherton.

Question 5

What is the cheapest time of day to fly from WAS to ROS?

Accepted Answer

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Rosario as you normally would.

Question 6

E

Accepted Answer

Most accurate provider: When it comes to deals on Washington, D.C.-Rosario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Rosario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Rosario flight searches over the past month and is updated monthly.

Question 7

E

Accepted Answer

Most trusted provider: When it comes to deals on Washington, D.C.-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 Washington, D.C.-Rosario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Question 8

What airport do you fly into for flights to Rosario from Washington, D.C.?

Accepted Answer

Rosario Fisherton (ROS) is the airport you will fly into if you book a flight from Washington, D.C. to Rosario. You should not have trouble finding flights to Fisherton from Washington, D.C.; the airport handles an average of 0 inbound flights from Washington, D.C. per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Rosario airport from Washington, D.C.. It is only a 6.6 mi journey from Fisherton (ROS) to Rosario’s city center.

Question 9

Can I find deals for flights from Washington, D.C. to Rosario that include hotel bookings?

Accepted Answer

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

Question 10

How can I find direct flights from Washington, D.C. to Rosario?

Accepted Answer

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

Question 11

Can I find deals for business class flights from Washington, D.C. to Rosario?

Accepted Answer

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,511 (AranGrant)

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

$1,511+ Cheap flights from Washington, D.C. (WAS) 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 3/22. Fares are subject to change and may not be available on all flights or dates of travel.

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Best flights from Washington, D.C. to RosarioDiscover carefully curated flight deals from Washington, D.C. to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Discover carefully curated flight deals from Washington, D.C. to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

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Find useful and relevant information for your journey from Washington, D.C. 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 Washington, D.C.?

How long is the flight from Washington, D.C. to Rosario?

What are the most popular routes from Washington, D.C. to Rosario?

Can I find deals for flights from Washington, D.C. to Rosario that include hotel bookings?

How can I find direct flights from Washington, D.C. to Rosario?

Can I find deals for business class flights from Washington, D.C. to Rosario?

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Best flights from Washington, D.C. to Rosario
Discover carefully curated flight deals from Washington, D.C. to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.