Cheap flights from Washington, D.C. Reagan-National Airport to Rosario from $1,632

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. Reagan-National Airport to Rosario departing on 3/1. 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. Reagan-National Airport to Rosario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:50 pm - 8:30 am
DCA
-
ROS
35h 40m
3 stops
Multiple Airlines Logo
9:30 am - 10:21 am
ROS
-
DCA
26h 51m
3 stops
$1,632Multiple Airlines
Sun, Mar 1 - Fri, Mar 6
LATAM Airlines Logo
7:00 am - 6:10 am
DCA
-
ROS
21h 10m
2 stops
LATAM Airlines Logo
2:45 am - 4:27 pm
ROS
-
DCA
39h 42m
2 stops
$1,644LATAM Airlines
Sat, Feb 28 - Thu, Mar 5
GOL Logo
5:58 pm - 2:15 am
DCA
-
ROS
55h 17m
2 stops
GOL Logo
4:55 am - 10:00 am
ROS
-
DCA
30h 05m
2 stops
$1,662GOL
Sat, Mar 28 - Sat, Apr 4
LATAM Airlines Logo
6:00 pm - 1:40 am
DCA
-
ROS
53h 40m
2 stops
LATAM Airlines Logo
2:45 am - 2:00 pm
ROS
-
DCA
37h 15m
2 stops
$1,707LATAM Airlines
Sun, Mar 1 - Thu, Mar 5
Multiple Airlines Logo
9:40 am - 9:50 pm
DCA
-
ROS
34h 10m
3 stops
Multiple Airlines Logo
9:30 am - 10:21 am
ROS
-
DCA
26h 51m
3 stops
$1,792Multiple Airlines
Sat, Feb 28 - Fri, Mar 6
Multiple Airlines Logo
6:50 pm - 10:20 am
DCA
-
ROS
37h 30m
3 stops
Multiple Airlines Logo
2:45 am - 4:27 pm
ROS
-
DCA
39h 42m
2 stops
$1,795Multiple Airlines
Sat, Feb 28 - Thu, Mar 5
GOL Logo
12:25 pm - 2:00 am
DCA
-
ROS
35h 35m
2 stops
GOL Logo
2:55 am - 4:41 pm
ROS
-
DCA
39h 46m
2 stops
$1,852GOL
Sun, Mar 1 - Thu, Mar 5
Multiple Airlines Logo
6:59 am - 8:30 am
DCA
-
ROS
47h 31m
3 stops
Multiple Airlines Logo
6:20 pm - 6:45 pm
ROS
-
DCA
50h 25m
3 stops
$1,903Multiple Airlines
Sun, Mar 1 - Sat, Mar 7
GOL Logo
5:00 pm - 2:00 am
DCA
-
ROS
31h 00m
2 stops
GOL Logo
2:55 am - 3:37 pm
ROS
-
DCA
38h 42m
2 stops
$2,016GOL
Sun, Mar 1 - Fri, Mar 6
Multiple Airlines Logo
6:59 am - 11:30 am
DCA
-
ROS
50h 31m
3 stops
Multiple Airlines Logo
6:20 pm - 6:45 pm
ROS
-
DCA
50h 25m
3 stops
$2,049Multiple Airlines
Sun, Mar 1 - Sat, Mar 7

LATAM Airlines flights from Washington, D.C. Reagan-National Airport to Rosario

Our best LATAM Airlines deals on Washington, D.C. Reagan-National Airport to Rosario flight tickets
LATAM Airlines
Feb 28
DCA7:00 amWashington, D.C. Reagan-National
21h 10m
2 stops
ROS6:10 amRosario Fisherton
Mar 5
ROS2:45 amRosario Fisherton
39h 42m
2 stops
DCA4:27 pmWashington, D.C. Reagan-National
$1,644
LATAM Airlines
Mar 1
DCA6:00 pmWashington, D.C. Reagan-National
53h 40m
2 stops
ROS1:40 amRosario Fisherton
Mar 5
ROS2:45 amRosario Fisherton
37h 15m
2 stops
DCA2:00 pmWashington, D.C. Reagan-National
$1,707

GOL flights from Washington, D.C. Reagan-National Airport to Rosario

Our best GOL deals on Washington, D.C. Reagan-National Airport to Rosario flight tickets
GOL
Mar 28
DCA5:58 pmWashington, D.C. Reagan-National
55h 17m
2 stops
ROS2:15 amRosario Fisherton
Apr 4
ROS4:55 amRosario Fisherton
30h 05m
2 stops
DCA10:00 amWashington, D.C. Reagan-National
$1,662
GOL
Mar 1
DCA12:25 pmWashington, D.C. Reagan-National
35h 35m
2 stops
ROS2:00 amRosario Fisherton
Mar 5
ROS2:55 amRosario Fisherton
39h 46m
2 stops
DCA4:41 pmWashington, D.C. Reagan-National
$1,852
GOL
Mar 1
DCA5:00 pmWashington, D.C. Reagan-National
31h 00m
2 stops
ROS2:00 amRosario Fisherton
Mar 6
ROS2:55 amRosario Fisherton
38h 42m
2 stops
DCA3:37 pmWashington, D.C. Reagan-National
$2,016

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 February 13, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Rosario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sun 3/1

6:50 pm-8:30 am

3 stops35h 40m

Rosario Fisherton

Fri 3/6

9:30 am-10:21 am

3 stops26h 51m

$1,632

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sat 2/28

7:00 am-6:10 am

2 stops21h 10m

Rosario Fisherton

Thu 3/5

2:45 am-4:27 pm

2 stops39h 42m

$1,644

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sat 3/28

5:58 pm-2:15 am

2 stops55h 17m

Rosario Fisherton

Sat 4/4

4:55 am-10:00 am

2 stops30h 05m

$1,662

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sun 3/1

6:00 pm-1:40 am

2 stops53h 40m

Rosario Fisherton

Thu 3/5

2:45 am-2:00 pm

2 stops37h 15m

$1,707

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sat 2/28

9:40 am-9:50 pm

3 stops34h 10m

Rosario Fisherton

Fri 3/6

9:30 am-10:21 am

3 stops26h 51m

$1,792

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sat 2/28

6:50 pm-10:20 am

3 stops37h 30m

Rosario Fisherton

Thu 3/5

2:45 am-4:27 pm

2 stops39h 42m

$1,795

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sun 3/1

12:25 pm-2:00 am

2 stops35h 35m

Rosario Fisherton

Thu 3/5

2:55 am-4:41 pm

2 stops39h 46m

$1,852

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sun 3/1

6:59 am-8:30 am

3 stops47h 31m

Rosario Fisherton

Sat 3/7

6:20 pm-6:45 pm

3 stops50h 25m

$1,903

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sun 3/1

5:00 pm-2:00 am

2 stops31h 00m

Rosario Fisherton

Fri 3/6

2:55 am-3:37 pm

2 stops38h 42m

$2,016

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sun 3/1

6:59 am-11:30 am

3 stops50h 31m

Rosario Fisherton

Sat 3/7

6:20 pm-6:45 pm

3 stops50h 25m

$2,049

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Washington, D.C. Reagan-National Airport to Rosario

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport 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. Reagan-National Airport to Rosario (DCA to ROS) flight deals and tips

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

Fastest flight time

31h 16m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Rosario takes 31h 16m
There are no direct flights from Washington, D.C. Reagan-National Airport to Rosario. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Rosario.
  • How far is Washington, D.C. Reagan-National to Rosario Fisherton by plane?

    Washington, D.C. Reagan-National and Rosario Fisherton are 5067.7 mi apart from one another. Typically, this will take 31h 16m by plane in normal conditions.

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

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

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

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

    The travel and health documents required for your trip to Rosario Fisherton Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Rosario Fisherton Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from Washington, D.C. Reagan-National Airport to Rosario?

    Search flight deals from Washington, D.C. Reagan-National Airport to Rosario. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Washington, D.C. Reagan-National Airport to Rosario with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Rosario from Washington, D.C..

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

Yes. All flights to Rosario from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Rosario.

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

If you are not ready to book a flight from Washington, D.C. to Rosario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Rosario and let you know when they change.

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Sun 3/15
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