IAD - ROS

$1,239 Find Cheap Flights from Washington Dulles Airport to Rosario

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Rosario departing on 2/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Rosario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Rosario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Rosario, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$1,239
Copa Airlines
Sat 2/7Tue 2/10
IAD - ROS • 1 stop
Cheapest one-way
Multiple Airlines
Wed 11/19
IAD - ROS • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Rosario!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Dulles Intl to Rosario (IAD-ROS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Rosario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Rosario

Sat, Feb 7 - Tue, Feb 10
Copa Airlines Logo
1:18 am - 12:20 amIAD-ROS
21h 02m1 stop
Copa Airlines Logo
5:20 am - 2:00 pmROS-IAD
34h 40m1 stop
$1,239Copa Airlines
Find Deal
Sun, Feb 8 - Tue, Feb 10
Copa Airlines Logo
3:35 pm - 12:20 amIAD-ROS
30h 45m1 stop
Copa Airlines Logo
5:20 am - 3:15 amROS-IAD
23h 55m1 stop
$1,384Copa Airlines
Find Deal
Sat, Feb 7 - Tue, Feb 10
Copa Airlines Logo
1:18 am - 12:20 amIAD-ROS
21h 02m1 stop
Copa Airlines Logo
5:20 am - 3:15 amROS-IAD
23h 55m1 stop
$1,451Copa Airlines
Find Deal
Sat, Feb 7 - Mon, Feb 9
Copa Airlines Logo
1:18 am - 12:20 amIAD-ROS
21h 02m1 stop
Copa Airlines Logo
1:34 am - 3:15 amROS-IAD
27h 41m1 stop
$1,471Copa Airlines
Find Deal
Sun, Feb 8 - Tue, Feb 10
Avianca Logo
5:45 am - 1:15 pmIAD-ROS
29h 30m2 stops
Avianca Logo
8:15 pm - 1:15 pmROS-IAD
43h 00m2 stops
$1,504Avianca
Find Deal
Sat, Feb 7 - Mon, Feb 9
Copa Airlines Logo
1:18 am - 12:20 amIAD-ROS
21h 02m1 stop
Copa Airlines Logo
1:34 am - 3:15 amROS-IAD
27h 41m1 stop
$1,506Copa Airlines
Find Deal
Sat, Feb 7 - Tue, Feb 10
Copa Airlines Logo
1:18 am - 12:20 amIAD-ROS
21h 02m1 stop
Copa Airlines Logo
5:20 am - 3:15 amROS-IAD
23h 55m1 stop
$1,571Copa Airlines
Find Deal
Sat, Mar 21 - Sat, Apr 4
Copa Airlines Logo
2:18 am - 12:20 amIAD-ROS
21h 02m1 stop
Copa Airlines Logo
1:34 am - 12:30 amROS-IAD
23h 56m1 stop
$3,495Copa Airlines
Find Deal
Sun, Mar 22 - Sun, Apr 5
LATAM Airlines Logo
7:59 pm - 1:40 amIAD-ROS
52h 41m2 stops
LATAM Airlines Logo
7:30 am - 9:11 amROS-IAD
26h 41m2 stops
$4,547LATAM Airlines
Find Deal
Sun, Mar 22 - Sun, Apr 5
LATAM Airlines Logo
7:59 pm - 1:40 amIAD-ROS
52h 41m2 stops
LATAM Airlines Logo
7:30 am - 12:07 amROS-IAD
17h 37m2 stops
$5,234LATAM Airlines
Find Deal
Useful Info

Good to know

Cheapest flight$1,239
Flight from Washington Dulles Airport to Rosario

When to book flights from Dulles Intl to Rosario

Are your dates flexible? Find out the best times to travel from Dulles Intl to Rosario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Rosario flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Rosario?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Rosario was $1,239 for a round-trip ticket.

  • Do I need a passport to fly between Washington Dulles Airport and Rosario?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Rosario.

  • Which airports will I be using when flying from Washington Dulles Airport to Rosario?

    On your way to Rosario, you’ll fly out from Washington, D.C. Dulles Intl. You’ll be landing at Rosario Fisherton.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Rosario?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Rosario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Rosario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Rosario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Rosario from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Rosario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Rosario with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and ROS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Rosario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Rosario from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Dulles Intl to Rosario

Information on your arrival and departure airports

Washington Dulles Airport (IAD)
Rosario (ROS)