Cheap flights from Washington, D.C. to Rosario from $1,582

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Rosario departing on 3/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Rosario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Copa Airlines Logo
2:18 am - 3:53 am
IAD
-
ROS
24h 35m
1 stop
Copa Airlines Logo
5:12 am - 4:22 am
ROS
-
IAD
24h 10m
1 stop
$1,582Copa Airlines
Sat, Mar 21 - Sun, Apr 5
LATAM Airlines Logo
7:15 am - 6:10 am
BWI
-
ROS
20h 55m
2 stops
LATAM Airlines Logo
2:45 am - 12:53 am
ROS
-
BWI
23h 08m
2 stops
$2,681LATAM Airlines
Thu, Mar 5 - Sun, Mar 8
LATAM Airlines Logo
6:00 am - 6:10 am
BWI
-
ROS
22h 10m
2 stops
LATAM Airlines Logo
2:45 am - 12:53 am
ROS
-
BWI
23h 08m
2 stops
$2,691LATAM Airlines
Thu, Mar 5 - Sun, Mar 8
Copa Airlines Logo
2:18 am - 3:53 am
IAD
-
ROS
24h 35m
1 stop
Copa Airlines Logo
5:12 am - 4:22 am
ROS
-
IAD
24h 10m
1 stop
$2,746Copa Airlines
Sat, Mar 21 - Sun, Apr 5
Multiple Airlines Logo
3:35 pm - 9:30 am
IAD
-
ROS
16h 55m
2 stops
Multiple Airlines Logo
11:00 pm - 5:20 am
ROS
-
IAD
31h 20m
2 stops
$3,919Multiple Airlines
Sun, Mar 22 - Sun, Apr 5
LATAM Airlines Logo
7:59 pm - 1:40 am
IAD
-
ROS
52h 41m
2 stops
LATAM Airlines Logo
7:35 am - 12:27 am
ROS
-
IAD
17h 52m
2 stops
$4,652LATAM Airlines
Sun, Mar 22 - Sun, Apr 5
Multiple Airlines Logo
11:30 pm - 7:20 pm
IAD
-
ROS
18h 50m
2 stops
Multiple Airlines Logo
5:12 am - 12:34 am
ROS
-
IAD
20h 22m
1 stop
$8,822Multiple Airlines
Sun, Mar 22 - Sun, Apr 5

LATAM Airlines flights from Washington, D.C. to Rosario

Our best LATAM Airlines deals on Washington, D.C. to Rosario flight tickets
LATAM Airlines
Mar 5
BWI7:15 amBaltimore/Washington
20h 55m
2 stops
ROS6:10 amRosario Fisherton
Mar 8
ROS2:45 amRosario Fisherton
23h 08m
2 stops
BWI12:53 amBaltimore/Washington
$2,681
LATAM Airlines
Mar 5
BWI6:00 amBaltimore/Washington
22h 10m
2 stops
ROS6:10 amRosario Fisherton
Mar 8
ROS2:45 amRosario Fisherton
23h 08m
2 stops
BWI12:53 amBaltimore/Washington
$2,691
LATAM Airlines
Mar 22
IAD7:59 pmWashington, D.C. Dulles Intl
52h 41m
2 stops
ROS1:40 amRosario Fisherton
Apr 5
ROS7:35 amRosario Fisherton
17h 52m
2 stops
IAD12:27 amWashington, D.C. Dulles Intl
$4,652

Copa Airlines flights from Washington, D.C. to Rosario

Our best Copa Airlines deals on Washington, D.C. to Rosario flight tickets
Copa Airlines
Mar 21
IAD2:18 amWashington, D.C. Dulles Intl
24h 35m
1 stop
ROS3:53 amRosario Fisherton
Apr 5
ROS5:12 amRosario Fisherton
24h 10m
1 stop
IAD4:22 amWashington, D.C. Dulles Intl
$1,582
Copa Airlines
Mar 21
IAD2:18 amWashington, D.C. Dulles Intl
24h 35m
1 stop
ROS3:53 amRosario Fisherton
Apr 5
ROS5:12 amRosario Fisherton
24h 10m
1 stop
IAD4:22 amWashington, D.C. Dulles Intl
$2,746

momondo 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, momondo users made 832,500 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. 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

Sat 3/21

2:18 am-3:53 am

1 stop24h 35m

Rosario Fisherton

Sun 4/5

5:12 am-4:22 am

1 stop24h 10m

$1,582

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Thu 3/5

7:15 am-6:10 am

2 stops20h 55m

Rosario Fisherton

Sun 3/8

2:45 am-12:53 am

2 stops23h 08m

$2,681

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Thu 3/5

6:00 am-6:10 am

2 stops22h 10m

Rosario Fisherton

Sun 3/8

2:45 am-12:53 am

2 stops23h 08m

$2,691

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sat 3/21

2:18 am-3:53 am

1 stop24h 35m

Rosario Fisherton

Sun 4/5

5:12 am-4:22 am

1 stop24h 10m

$2,746

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sun 3/22

3:35 pm-9:30 am

2 stops16h 55m

Rosario Fisherton

Sun 4/5

11:00 pm-5:20 am

2 stops31h 20m

$3,919

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sun 3/22

7:59 pm-1:40 am

2 stops52h 41m

Rosario Fisherton

Sun 4/5

7:35 am-12:27 am

2 stops17h 52m

$4,652

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sun 3/22

11:30 pm-7:20 pm

2 stops18h 50m

Rosario Fisherton

Sun 4/5

5:12 am-12:34 am

1 stop20h 22m

$8,822

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Rosario from

How to get the cheapest flight ticket from Washington, D.C. to Rosario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Rosario?

The flight from Washington, D.C. to Rosario depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Washington, D.C. (a popular airport in Washington, D.C.) to Rosario (the most popular airport in Rosario), then the flight time is 22h 15m on average. If you fly from Baltimore (another popular airport in Washington, D.C.) to Rosario, then the average flight time is 27h 35m.

When to book flights from Washington, D.C. to Rosario

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Rosario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Rosario (WAS to ROS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Rosario

Fastest flight time

19h 20m

Direct flights

None
The fastest flight from Washington, D.C. to Rosario takes 19h 20m
There are no direct flights from Washington, D.C. to Rosario. There are no popular flight routes from Washington, D.C. to Rosario.
  • How far is Washington, D.C. to Rosario Fisherton by plane?

    A flight from Washington, D.C. to Rosario Fisherton will travel around 5071.3 mi. A reasonable flight in good conditions will take 19h 20m.

  • When did momondo last update prices for flights from Washington, D.C. to Rosario Fisherton Airport?

    Prices for flights from Washington, D.C. to Rosario Fisherton Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. to Rosario Fisherton Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Rosario Fisherton Airport.

  • What documentation or ID do you need to fly to Rosario Fisherton Airport?

    The necessary travel and health documents for your Rosario Fisherton Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Rosario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Rosario for you.

Can I find flights from Washington, D.C. to Rosario with flexible booking policies on momondo?

Flights from Washington, D.C. to Rosario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Rosario?

momondo helps you find the best flight between Washington, D.C. and Rosario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Rosario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Rosario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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