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Rosario

$357+ Cheap flights from District of Columbia 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ROS
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from District of Columbia to Rosario

Keep the following information in mind while searching for District of Columbia to Rosario flight deals. Data was last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$851
(KAYAK)

One-way from

$357
(Kiwi.com)
Provider with most accurate pricing for Washington, D.C. (WAS)-Rosario Fisherton flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Rosario Fisherton flights.
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From District of Columbia to Rosario Fisherton
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One-way flight from District of Columbia to Rosario Fisherton
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Find flight deals from District of Columbia to Rosario

Cheapest flights from District of Columbia to Rosario
Explore the most affordable flight options available from District of Columbia to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This KAYAK deal was found by Cheapflights users on 1/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:45 pm
DCA
-
ROS
2 stops20h 25m
LATAM Airlines
Wed 4/87:35 am
ROS
-
DCA
2 stops27h 45m
LATAM Airlines
Deal found 1/14$851
This LATAM Airlines deal was found by Cheapflights users on 1/13. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:00 pm
IAD
-
ROS
2 stops23h 25m
LATAM Airlines
Fri 10/212:10 pm
ROS
-
IAD
2 stops24h 41m
LATAM Airlines
Deal found 1/13$851
This KAYAK deal was found by Cheapflights users on 1/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/313:35 pm
IAD
-
ROS
2 stops18h 35m
LATAM Airlines
Wed 4/87:35 am
ROS
-
IAD
2 stops17h 56m
LATAM Airlines
Deal found 1/14$894
This Copa Airlines deal was found by Cheapflights users on 1/14. 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.
Mon 3/302:20 am
IAD
-
ROS
1 stop21h 02m
Copa Airlines
Wed 4/85:12 am
ROS
-
IAD
1 stop20h 22m
Copa Airlines
Deal found 1/14$1,089
This Mytrip deal was found by Cheapflights users on 1/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/242:35 pm
IAD
-
ROS
2 stops20h 40m
Multiple Airlines
Tue 3/105:35 pm
ROS
-
IAD
3 stops21h 40m
Multiple Airlines
Deal found 1/15$1,106
This Expedia deal was found by Cheapflights users on 1/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/273:35 pm
IAD
-
ROS
2 stops17h 05m
Multiple Airlines
Sun 4/59:15 pm
ROS
-
IAD
2 stops41h 45m
Multiple Airlines
Deal found 1/14$1,229
This FlightHub deal was found by Cheapflights users on 1/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/313:25 pm
IAD
-
ROS
2 stops16h 00m
Multiple Airlines
Tue 4/71:26 am
ROS
-
IAD
1 stop14h 40m
Multiple Airlines
Deal found 1/14$1,302
This Copa Airlines deal was found by Cheapflights users on 1/14. 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.
Fri 3/279:29 am
IAD
-
ROS
1 stop17h 24m
Copa Airlines
Sun 4/55:12 am
ROS
-
IAD
1 stop20h 22m
Copa Airlines
Deal found 1/14$1,472
This Ovago deal was found by Cheapflights users on 1/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/272:55 pm
DCA
-
ROS
2 stops34h 10m
GOL
Sat 4/42:55 am
ROS
-
DCA
2 stops32h 42m
GOL
Deal found 1/14$1,495
This Gotogate deal was found by Cheapflights users on 1/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/249:40 am
DCA
-
ROS
3 stops33h 40m
Multiple Airlines
Tue 3/105:35 pm
ROS
-
DCA
3 stops51h 10m
Multiple Airlines
Deal found 1/15$1,504
This Arangrant deal was found by Cheapflights users on 1/14. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/229:29 am
IAD
-
ROS
1 stop17h 24m
Copa Airlines
Sun 4/55:12 am
ROS
-
IAD
1 stop34h 54m
Copa Airlines
Deal found 1/14$1,575
This Gurufare deal was found by Cheapflights users on 1/15. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2412:04 pm
DCA
-
ROS
2 stops35h 56m
GOL
Mon 3/92:55 am
ROS
-
DCA
2 stops36h 04m
GOL
Deal found 1/15$1,866

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 January 15, 2026.
Use the filters below to find and compare flights from District of Columbia to Rosario that are best for you.

Fly from

District of Columbia

Fly to

Rosario

Route

Depart

Return

Price

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Tue 3/31

1:45 pm-11:10 am

2 stops20h 25m

Rosario Fisherton

Wed 4/8

7:35 am-10:20 am

2 stops27h 45m

$851

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Tue 3/31

3:35 pm-11:10 am

2 stops18h 35m

Rosario Fisherton

Wed 4/8

7:35 am-12:31 am

2 stops17h 56m

$894

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Mon 3/30

2:20 am-12:22 am

1 stop21h 02m

Rosario Fisherton

Wed 4/8

5:12 am-12:34 am

1 stop20h 22m

$1,089

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Tue 2/24

2:35 pm-1:15 pm

2 stops20h 40m

Rosario Fisherton

Tue 3/10

5:35 pm-2:15 pm

3 stops21h 40m

$1,106

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Fri 3/27

3:35 pm-9:40 am

2 stops17h 05m

Rosario Fisherton

Sun 4/5

9:15 pm-2:00 pm

2 stops41h 45m

$1,229

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Tue 3/31

3:25 pm-8:25 am

2 stops16h 00m

Rosario Fisherton

Tue 4/7

1:26 am-3:06 pm

1 stop14h 40m

$1,302

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Fri 3/27

9:29 am-3:53 am

1 stop17h 24m

Rosario Fisherton

Sun 4/5

5:12 am-12:34 am

1 stop20h 22m

$1,472

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Fri 3/27

2:55 pm-2:05 am

2 stops34h 10m

Rosario Fisherton

Sat 4/4

2:55 am-10:37 am

2 stops32h 42m

$1,495

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Tue 2/24

9:40 am-9:20 pm

3 stops33h 40m

Rosario Fisherton

Tue 3/10

5:35 pm-7:45 pm

3 stops51h 10m

$1,504

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sun 3/22

9:29 am-3:53 am

1 stop17h 24m

Rosario Fisherton

Sun 4/5

5:12 am-3:06 pm

1 stop34h 54m

$1,575

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 15 results
1
2

Best time to book a flight from District of Columbia to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from District of Columbia 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 District of Columbia 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 District of Columbia 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 District of Columbia?

    Rosario Fisherton (ROS) is the airport you will fly into if you book a flight from District of Columbia to Rosario. It is only a 6.6 mi journey from Fisherton (ROS) to Rosario’s city center.

  • How long is the flight from District of Columbia to Rosario?

    For as low as $851, LATAM Airlines can have you in Rosario from District of Columbia in 20h 25m. District of Columbia and Rosario are separated by a distance of 5063 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from District of Columbia to Rosario that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Rosario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Rosario?

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

  • Can I find deals for business class flights from District of Columbia to Rosario?

    Yes. Cheapflights offers flight deals from District of Columbia 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.

See more FAQs

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