How do I get Price Alerts for flights from Washington, D.C. Dulles Intl Airport to Rosario?

Confirm your travel details to search for the latest offers for flights from Washington, D.C. Dulles Intl Airport to Rosario . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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

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

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

The travel and health documents you'll need for your trip to Rosario Fisherton Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Rosario Fisherton Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$894 Cheap Flights from Washington, D.C. Dulles Intl Airport to Rosario in 2026

1 adult

0 bags

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Rosario

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:20 pm - 6:05 am

IAD

ROS

39h 45m

2 stops

7:35 am - 12:09 am

ROS

IAD

17h 34m

2 stops

$894Multiple Airlines

Wed, May 6 - Tue, Jul 7

6:45 am - 9:30 am

IAD

ROS

25h 45m

2 stops

9:00 pm - 4:20 am

ROS

IAD

32h 20m

3 stops

$926Multiple Airlines

Fri, Mar 20 - Fri, Mar 27

6:45 am - 9:30 am

IAD

ROS

25h 45m

3 stops

7:30 pm - 4:20 am

ROS

IAD

33h 50m

3 stops

$957Multiple Airlines

Fri, Mar 20 - Fri, Mar 27

6:45 am - 9:30 am

IAD

ROS

25h 45m

2 stops

9:00 pm - 2:15 pm

ROS

IAD

18h 15m

2 stops

$1,036Multiple Airlines

Fri, Mar 20 - Fri, Mar 27

3:35 pm - 8:30 am

IAD

ROS

15h 55m

2 stops

3:05 pm - 5:20 am

ROS

IAD

39h 15m

2 stops

$1,241Multiple Airlines

Sat, Mar 21 - Sun, Apr 5

2:18 am - 12:20 am

IAD

ROS

21h 02m

1 stop

9:40 pm - 5:20 am

ROS

IAD

32h 40m

2 stops

$1,306Multiple Airlines

Fri, Mar 20 - Sun, Apr 5

9:29 am - 12:20 am

IAD

ROS

13h 51m

1 stop

1:26 am - 3:00 pm

ROS

IAD

14h 34m

1 stop

$1,444Copa Airlines

Fri, Mar 20 - Thu, Mar 26

9:48 am - 7:50 am

IAD

ROS

21h 02m

3 stops

8:15 pm - 5:20 am

ROS

IAD

34h 05m

2 stops

$1,745Multiple Airlines

Wed, May 6 - Tue, Jul 7

4:38 pm - 12:27 am

IAD

ROS

30h 49m

1 stop

1:23 am - 6:41 pm

ROS

IAD

18h 18m

2 stops

$1,833Copa Airlines

Wed, May 6 - Mon, Jul 6

2:18 am - 12:20 am

IAD

ROS

21h 02m

1 stop

5:12 am - 12:34 am

ROS

IAD

20h 22m

1 stop

$1,944Copa Airlines

Fri, Mar 20 - Sun, Apr 5

Copa Airlines flights from Washington, D.C. Dulles Intl Airport to Rosario

Our best Copa Airlines deals on Washington, D.C. Dulles Intl Airport to Rosario flight tickets

Copa Airlines

Mar 20

IAD9:29 amWashington, D.C. Dulles Intl

13h 51m

1 stop

ROS12:20 amRosario Fisherton

Mar 26

ROS1:26 amRosario Fisherton

14h 34m

1 stop

IAD3:00 pmWashington, D.C. Dulles Intl

$1,444

Copa Airlines

May 6

IAD4:38 pmWashington, D.C. Dulles Intl

30h 49m

1 stop

ROS12:27 amRosario Fisherton

Jul 6

ROS1:23 amRosario Fisherton

18h 18m

2 stops

IAD6:41 pmWashington, D.C. Dulles Intl

$1,833

Copa Airlines

Mar 20

IAD2:18 amWashington, D.C. Dulles Intl

21h 02m

1 stop

ROS12:20 amRosario Fisherton

Apr 5

ROS5:12 amRosario Fisherton

20h 22m

1 stop

IAD12:34 amWashington, D.C. Dulles Intl

$1,944

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

Wed 5/6

1:20 pm-6:05 am

2 stops39h 45m

Rosario Fisherton

Tue 7/7

7:35 am-12:09 am

2 stops17h 34m

$894

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Fri 3/20

6:45 am-9:30 am

2 stops25h 45m

Rosario Fisherton

Fri 3/27

9:00 pm-4:20 am

3 stops32h 20m

$926

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Fri 3/20

6:45 am-9:30 am

3 stops25h 45m

Rosario Fisherton

Fri 3/27

7:30 pm-4:20 am

3 stops33h 50m

$957

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Fri 3/20

6:45 am-9:30 am

2 stops25h 45m

Rosario Fisherton

Fri 3/27

9:00 pm-2:15 pm

2 stops18h 15m

$1,036

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sat 3/21

3:35 pm-8:30 am

2 stops15h 55m

Rosario Fisherton

Sun 4/5

3:05 pm-5:20 am

2 stops39h 15m

$1,241

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Fri 3/20

2:18 am-12:20 am

1 stop21h 02m

Rosario Fisherton

Sun 4/5

9:40 pm-5:20 am

2 stops32h 40m

$1,306

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Fri 3/20

9:29 am-12:20 am

1 stop13h 51m

Rosario Fisherton

Thu 3/26

1:26 am-3:00 pm

1 stop14h 34m

$1,444

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Wed 5/6

9:48 am-7:50 am

3 stops21h 02m

Rosario Fisherton

Tue 7/7

8:15 pm-5:20 am

2 stops34h 05m

$1,745

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Wed 5/6

4:38 pm-12:27 am

1 stop30h 49m

Rosario Fisherton

Mon 7/6

1:23 am-6:41 pm

2 stops18h 18m

$1,833

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Fri 3/20

2:18 am-12:20 am

1 stop21h 02m

Rosario Fisherton

Sun 4/5

5:12 am-12:34 am

1 stop20h 22m

$1,944

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Washington, D.C. Dulles Intl Airport to Rosario

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

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

Fastest flight time	25h 45m
Direct flights	None

The fastest flight from Washington, D.C. Dulles Intl Airport to Rosario takes 25h 45m

There are no direct flights from Washington, D.C. Dulles Intl Airport to Rosario. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Rosario.

Search flight deals

How far is Washington, D.C. Dulles Intl to Rosario Fisherton by plane?
The straight-line distance from Washington, D.C. Dulles Intl to Rosario Fisherton is 5079.7 mi. A reasonable flight in good conditions will take 25h 45m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Rosario Fisherton Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Rosario Fisherton Airport were last updated today.
How old do you have to be to fly from Washington, D.C. Dulles Intl 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. Dulles Intl Airport to Rosario Fisherton Airport.
What documentation or ID do you need to fly to Rosario Fisherton Airport?
The travel and health documents you'll need for your trip to Rosario Fisherton Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Rosario Fisherton Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from Washington, D.C. Dulles Intl Airport to Rosario?
Confirm your travel details to search for the latest offers for flights from Washington, D.C. Dulles Intl Airport to Rosario. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Washington, D.C. Dulles Intl Airport to Rosario with momondo?
By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

Finding the right flight to Rosario from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Rosario quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Rosario from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Washington, D.C. to Rosario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Rosario from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.