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

Copa Airlines can get you from Washington, D.C. Dulles Intl Airport to Rosario in just under 13h 51m. Your travel time can differ by up to . The distance between Washington, D.C. Dulles Intl Airport and Rosario is about 5075 mi.

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 IAD 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. Dulles Intl Airport to Rosario as you normally would.

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

Rosario Fisherton (ROS), located 6.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Rosario. 0 airlines have flights to Fisherton from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Rosario Fisherton should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.

Can I find deals for flights from Dulles Intl to Rosario that include hotel bookings?

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

How can I find direct flights from Dulles Intl to Rosario?

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

Can I find deals for business class flights from Dulles Intl to Rosario?

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$591+ Flights from Washington, D.C. Dulles Intl Airport to Rosario

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Cheap flight deals from Dulles Intl to Rosario

Round-trip from	$1,247 (Copa Airlines)
One-way from	$591 (Copa Airlines)

From Washington, D.C. Dulles Intl to Rosario Fisherton

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One-way flight from Washington, D.C. Dulles Intl to Rosario Fisherton

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Find flight deals from Dulles Intl to Rosario

Cheapest flights from Dulles Intl to Rosario
Explore the most affordable flight options available from Dulles Intl to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Thu 9/1112:35 pmIAD - ROS

2 stops16h 30mMultiple Airlines

Sun 9/147:30 amROS - IAD

2 stops56h 55mMultiple Airlines

Deal found 9/10

$904

Thu 9/1110:07 amIAD - ROS

2 stops18h 58mLATAM Airlines

Sun 9/147:30 amROS - IAD

3 stops41h 43mLATAM Airlines

Deal found 9/10

$1,190

Thu 9/119:35 amIAD - ROS

1 stop13h 38mCopa Airlines

Sat 9/131:22 amROS - IAD

1 stop27h 58mCopa Airlines

Deal found 9/10

$1,479

Best flights from Dulles Intl to Rosario
Discover carefully curated flight deals from Dulles Intl to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Sun 2/88:29 amIAD - ROS

1 stop13h 51mCopa Airlines

Mon 2/91:34 amROS - IAD

1 stop23h 58mCopa Airlines

Deal found 9/10

$1,247

Last-minute flights from Dulles Intl to Rosario
Discover last-minute flight deals from Dulles Intl to Rosario. Data last updated September 11, 2025 and is based on user searches.

Thu 9/1112:35 pmIAD - ROS

2 stops16h 30mMultiple Airlines

Sun 9/147:30 amROS - IAD

2 stops56h 55mMultiple Airlines

Deal found 9/10

$904

Thu 9/1110:07 amIAD - ROS

2 stops18h 58mLATAM Airlines

Sun 9/147:30 amROS - IAD

3 stops41h 43mLATAM Airlines

Deal found 9/10

$1,190

Thu 9/119:35 amIAD - ROS

1 stop13h 38mCopa Airlines

Sat 9/131:22 amROS - IAD

1 stop27h 58mCopa Airlines

Deal found 9/10

$1,479

One-way flights from Dulles Intl to Rosario
Search for one-way flight options from Dulles Intl to Rosario. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Thu 9/182:25 amIAD - ROS

1 stop20h 48mCopa Airlines

Deal found 9/10

$591

Fri 9/197:00 amIAD - ROS

2 stops19h 52mMultiple Airlines

Deal found 9/10

$1,109

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sun 2/8

8:29 am-12:20 am

1 stop13h 51m

Rosario Fisherton

Mon 2/9

1:34 am-11:32 pm

1 stop23h 58m

$1,247

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Thu 9/18

2:25 am-12:13 am

1 stop20h 48m

$591

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Fri 9/19

7:00 am-3:52 am

2 stops19h 52m

$1,109

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Dulles Intl to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Dulles Intl 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. Dulles Intl?
Rosario Fisherton (ROS), located 6.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Rosario. 0 airlines have flights to Fisherton from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Rosario Fisherton should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.
How long is the flight from Washington, D.C. Dulles Intl Airport to Rosario?
Copa Airlines can get you from Washington, D.C. Dulles Intl Airport to Rosario in just under 13h 51m. Your travel time can differ by up to . The distance between Washington, D.C. Dulles Intl Airport and Rosario is about 5075 mi.
Can I find deals for flights from Dulles Intl to Rosario that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Rosario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Rosario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Rosario.
Can I find deals for business class flights from Dulles Intl to Rosario?
Yes. Cheapflights offers flight deals from Dulles Intl 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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$591+ Cheap flights from Dulles Intl (IAD) 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Rosario with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from Dulles Intl to Rosario

Round-trip from

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Find flight deals from Dulles Intl to Rosario

Cheapest flights from Dulles Intl to RosarioExplore the most affordable flight options available from Dulles Intl to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Dulles Intl to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Dulles Intl to Rosario

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

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

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

Can I find deals for flights from Dulles Intl to Rosario that include hotel bookings?

How can I find direct flights from Dulles Intl to Rosario?

Can I find deals for business class flights from Dulles Intl to Rosario?

Browse thousands of different options on Cheapflights for your next trip

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Cheapest flights from Dulles Intl to Rosario
Explore the most affordable flight options available from Dulles Intl to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.