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.

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).

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

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

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

Rosario Fisherton (ROS) is the airport you will fly into if you book a flight from Washington, D.C. Reagan-National to Rosario. You should not have trouble finding flights to Fisherton from Washington, D.C. Reagan-National; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National 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. Reagan-National. It is only a 6.6 mi journey from Fisherton (ROS) to Rosario’s city center.

Can I find deals for flights from Reagan-National to Rosario that include hotel bookings?

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

How can I find direct flights from Reagan-National to Rosario?

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

Can I find deals for business class flights from Reagan-National to Rosario?

Yes. Cheapflights offers flight deals from Reagan-National 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.

$909+ Flights from Washington, D.C. Reagan-National Airport to Rosario

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Cheapest flights from Reagan-National to Rosario
Explore the most affordable flight options available from Reagan-National to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

mar. 11/187:00 amDCA - ROS

2 stops21h 05mLATAM Airlines

vie. 11/287:50 amROS - DCA

2 stops28h 32mLATAM Airlines

Deal found 7/28

$909

mié. 11/196:59 pmDCA - ROS

2 stops33h 06mMultiple Airlines

vie. 11/287:50 amROS - DCA

2 stops33h 29mMultiple Airlines

Deal found 7/28

$917

Best flights from Reagan-National to Rosario
Discover carefully curated flight deals from Reagan-National to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 30, 2025.

mar. 11/187:00 amDCA - ROS

2 stops21h 05mLATAM Airlines

vie. 11/287:50 amROS - DCA

2 stops28h 32mLATAM Airlines

Deal found 7/28

$909

mié. 11/196:59 pmDCA - ROS

2 stops33h 06mMultiple Airlines

vie. 11/287:50 amROS - DCA

2 stops33h 29mMultiple Airlines

Deal found 7/28

$917

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Rosario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

mar. 11/18

7:00 am-6:05 am

2 stops21h 05m

Rosario Fisherton

vie. 11/28

7:50 am-10:22 am

2 stops28h 32m

$909

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

mié. 11/19

6:59 pm-6:05 am

2 stops33h 06m

Rosario Fisherton

vie. 11/28

7:50 am-3:19 pm

2 stops33h 29m

$917

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Reagan-National to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Reagan-National 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

What airport do you fly into for flights to Rosario from Washington, D.C. Reagan-National?
Rosario Fisherton (ROS) is the airport you will fly into if you book a flight from Washington, D.C. Reagan-National to Rosario. You should not have trouble finding flights to Fisherton from Washington, D.C. Reagan-National; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National 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. Reagan-National. It is only a 6.6 mi journey from Fisherton (ROS) to Rosario’s city center.
Can I find deals for flights from Reagan-National to Rosario that include hotel bookings?
Yes. In addition to deals on Reagan-National to Rosario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Rosario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Rosario.
Can I find deals for business class flights from Reagan-National to Rosario?
Yes. Cheapflights offers flight deals from Reagan-National 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.

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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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Rosario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Reagan-National to Rosario

Cheapest flights from Reagan-National to Rosario
Explore the most affordable flight options available from Reagan-National to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

Explore the most affordable flight options available from Reagan-National to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

Best flights from Reagan-National to Rosario
Discover carefully curated flight deals from Reagan-National to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 30, 2025.

Discover carefully curated flight deals from Reagan-National to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Rosario that are best for you.

Best time to book a flight from Reagan-National to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Reagan-National with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

Can I find deals for flights from Reagan-National to Rosario that include hotel bookings?

How can I find direct flights from Reagan-National to Rosario?

Can I find deals for business class flights from Reagan-National to Rosario?

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.

Alternative routes for Reagan-National to Rosario

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Reagan-National and Rosario flights

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$909+ Cheap flights from Reagan-National (DCA) 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Rosario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Reagan-National to Rosario

Cheapest flights from Reagan-National to RosarioExplore the most affordable flight options available from Reagan-National to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

Explore the most affordable flight options available from Reagan-National to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Rosario that are best for you.

Best time to book a flight from Reagan-National to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Reagan-National with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

Can I find deals for flights from Reagan-National to Rosario that include hotel bookings?

How can I find direct flights from Reagan-National to Rosario?

Can I find deals for business class flights from Reagan-National to Rosario?

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.

Alternative routes for Reagan-National to Rosario

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Reagan-National to Rosario
Explore the most affordable flight options available from Reagan-National to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.