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Rosario

$1,142+ 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ROS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Washington, D.C. to Rosario

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 October 30, 2025.

This Copa Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/83:45 pmBWI - ROS
1 stop30h 35mCopa Airlines
Tue 2/105:20 amROS - BWI
1 stop34h 50mCopa Airlines
Deal found 10/28$1,142
This Copa Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/83:35 pmIAD - ROS
1 stop30h 45mCopa Airlines
Tue 2/105:20 amROS - IAD
1 stop23h 55mCopa Airlines
Deal found 10/29$1,156

Cheap flight deals from Washington, D.C. to Rosario

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Rosario (ROS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,142
(Copa Airlines)
Provider with most accurate pricing for Washington, D.C. (WAS)-Rosario Fisherton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Rosario Fisherton flights.
Search Deals
From Washington, D.C. (WAS) to Rosario Fisherton
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Rosario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Rosario that are best for you.

Fly from

Washington, D.C.

Fly to

Rosario

Route

Depart

Return

Price

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Sun 2/8

3:45 pm-12:20 am

1 stop30h 35m

Rosario Fisherton

Tue 2/10

5:20 am-2:10 pm

1 stop34h 50m

$1,142

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sun 2/8

3:35 pm-12:20 am

1 stop30h 45m

Rosario Fisherton

Tue 2/10

5:20 am-3:15 am

1 stop23h 55m

$1,156

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Compare providers for flights from Washington, D.C. to Rosario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Rosario in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
  • 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.

Best time to book a flight from Washington, D.C. to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Rosario
No data available for this route at this time. Please check back soon.

Related info for your journey

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.?

    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.

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

    There are many flights that can get you from Washington, D.C. to Rosario in 30h 35m. Fly via Copa Airlines to get the fastest option. The distance from Washington, D.C. to Rosario is about 5080 mi.

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

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

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

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

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

    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.

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

    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.

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