Cheap flights from Washington, D.C. to Rosario from $925

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 10/29. 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.
LATAM Airlines Logo
2:55 pm - 11:10 am
DCA
-
ROS
19h 15m
2 stops
LATAM Airlines Logo
12:10 pm - 6:14 pm
ROS
-
DCA
32h 04m
2 stops
$925LATAM Airlines
Thu, Oct 29 - Mon, Nov 2
LATAM Airlines Logo
7:00 am - 11:10 am
DCA
-
ROS
27h 10m
2 stops
LATAM Airlines Logo
12:10 pm - 10:54 am
ROS
-
DCA
24h 44m
2 stops
$975LATAM Airlines
Thu, Oct 29 - Mon, Nov 2
Multiple Airlines Logo
5:17 pm - 6:05 am
IAD
-
ROS
35h 48m
2 stops
Multiple Airlines Logo
7:35 am - 3:52 pm
ROS
-
IAD
33h 17m
2 stops
$975Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Delta Logo
8:30 pm - 11:40 am
DCA
-
ROS
38h 10m
2 stops
Delta Logo
12:40 pm - 10:26 am
ROS
-
DCA
22h 46m
2 stops
$980Delta
Wed, Sep 16 - Wed, Sep 23
LATAM Airlines Logo
6:10 pm - 6:05 am
BWI
-
ROS
34h 55m
2 stops
LATAM Airlines Logo
7:35 am - 12:16 am
ROS
-
BWI
17h 41m
2 stops
$1,006LATAM Airlines
Wed, Sep 16 - Wed, Sep 23
Copa Airlines Logo
3:37 pm - 3:53 am
BWI
-
ROS
34h 16m
1 stop
Copa Airlines Logo
5:20 am - 2:10 pm
ROS
-
BWI
34h 50m
1 stop
$1,158Copa Airlines
Wed, Nov 4 - Tue, Nov 10
Multiple Airlines Logo
2:55 pm - 11:10 am
DCA
-
ROS
42h 15m
2 stops
Multiple Airlines Logo
4:45 pm - 10:48 pm
ROS
-
DCA
32h 03m
2 stops
$1,159Multiple Airlines
Thu, Nov 5 - Tue, Nov 10
Multiple Airlines Logo
5:15 pm - 2:33 am
IAD
-
ROS
32h 18m
2 stops
Multiple Airlines Logo
7:35 am - 3:55 pm
ROS
-
IAD
33h 20m
3 stops
$1,295Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Copa Airlines Logo
6:25 am - 12:11 am
IAD
-
ROS
16h 46m
1 stop
Copa Airlines Logo
1:23 am - 3:05 pm
ROS
-
IAD
14h 42m
1 stop
$1,312Copa Airlines
Sat, Jun 20 - Fri, Jun 26
Copa Airlines Logo
9:35 am - 12:17 am
IAD
-
ROS
13h 42m
1 stop
Copa Airlines Logo
1:23 am - 3:04 pm
ROS
-
IAD
14h 41m
1 stop
$1,335Copa Airlines
Wed, Sep 16 - Tue, Sep 22

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

Our best LATAM Airlines deals on Washington, D.C. to Rosario flight tickets
LATAM Airlines
Oct 29
DCA2:55 pmWashington, D.C. Reagan-National
19h 15m
2 stops
ROS11:10 amRosario Fisherton
Nov 2
ROS12:10 pmRosario Fisherton
32h 04m
2 stops
DCA6:14 pmWashington, D.C. Reagan-National
$925
LATAM Airlines
Oct 22
IAD12:30 pmWashington, D.C. Dulles Intl
22h 10m
2 stops
ROS11:40 amRosario Fisherton
Oct 26
ROS12:10 pmRosario Fisherton
24h 42m
2 stops
IAD11:52 amWashington, D.C. Dulles Intl
$975
LATAM Airlines
Sep 16
BWI6:10 pmBaltimore/Washington
34h 55m
2 stops
ROS6:05 amRosario Fisherton
Sep 23
ROS7:35 amRosario Fisherton
17h 41m
2 stops
BWI12:16 amBaltimore/Washington
$1,006

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

Our best Copa Airlines deals on Washington, D.C. to Rosario flight tickets
Copa Airlines
Nov 4
BWI3:37 pmBaltimore/Washington
34h 16m
1 stop
ROS3:53 amRosario Fisherton
Nov 10
ROS5:20 amRosario Fisherton
34h 50m
1 stop
BWI2:10 pmBaltimore/Washington
$1,158
Copa Airlines
Jun 20
IAD6:25 amWashington, D.C. Dulles Intl
16h 46m
1 stop
ROS12:11 amRosario Fisherton
Jun 26
ROS1:23 amRosario Fisherton
14h 42m
1 stop
IAD3:05 pmWashington, D.C. Dulles Intl
$1,312
Copa Airlines
Sep 16
IAD9:35 amWashington, D.C. Dulles Intl
13h 42m
1 stop
ROS12:17 amRosario Fisherton
Sep 22
ROS1:23 amRosario Fisherton
14h 41m
1 stop
IAD3:04 pmWashington, D.C. Dulles Intl
$1,335

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 May 10, 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

Cheapest round-trip

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Thu 10/29

2:55 pm-11:10 am

2 stops19h 15m

Rosario Fisherton

Mon 11/2

12:10 pm-6:14 pm

2 stops32h 04m

$925

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Thu 10/29

7:00 am-11:10 am

2 stops27h 10m

Rosario Fisherton

Mon 11/2

12:10 pm-10:54 am

2 stops24h 44m

$975

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Wed 9/16

5:17 pm-6:05 am

2 stops35h 48m

Rosario Fisherton

Wed 9/23

7:35 am-3:52 pm

2 stops33h 17m

$975

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Wed 9/16

8:30 pm-11:40 am

2 stops38h 10m

Rosario Fisherton

Wed 9/23

12:40 pm-10:26 am

2 stops22h 46m

$980

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Wed 9/16

6:10 pm-6:05 am

2 stops34h 55m

Rosario Fisherton

Wed 9/23

7:35 am-12:16 am

2 stops17h 41m

$1,006

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Wed 11/4

3:37 pm-3:53 am

1 stop34h 16m

Rosario Fisherton

Tue 11/10

5:20 am-2:10 pm

1 stop34h 50m

$1,158

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Thu 11/5

2:55 pm-11:10 am

2 stops42h 15m

Rosario Fisherton

Tue 11/10

4:45 pm-10:48 pm

2 stops32h 03m

$1,159

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Wed 9/16

5:15 pm-2:33 am

2 stops32h 18m

Rosario Fisherton

Wed 9/23

7:35 am-3:55 pm

3 stops33h 20m

$1,295

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sat 6/20

6:25 am-12:11 am

1 stop16h 46m

Rosario Fisherton

Fri 6/26

1:23 am-3:05 pm

1 stop14h 42m

$1,312
Quickest round-trip

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Wed 9/16

9:35 am-12:17 am

1 stop13h 42m

Rosario Fisherton

Tue 9/22

1:23 am-3:04 pm

1 stop14h 41m

$1,335

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

Can stopping save me money on Washington, D.C. to Rosario flights?

You could potentially save up to 48% on your flight if you consider stops on a Washington, D.C. to Rosario flight.

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

16h 46m

Direct flights

None
The fastest flight from Washington, D.C. to Rosario takes 16h 46m
There are no direct flights from Washington, D.C. to Rosario. There are no popular flight routes from Washington, D.C. to Rosario.

Frequently asked questions about flying 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 16h 46m.

  • 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.

  • What is the most popular airline from Washington, D.C. to Rosario?

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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.

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