$336+ Cheap flights from District of Columbia to Rosario (ROS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ROS
Jan 2 — Jan 91
1 adult, Economy
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1. Tell us where you want to go
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Best flights from District of Columbia to RosarioDiscover carefully curated flight deals from District of Columbia to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 3, 2025.
Discover carefully curated flight deals from District of Columbia to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 3, 2025.
This KAYAK deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/132:21 amIAD - ROS
1 stop20h 54mCopa Airlines
Thu 4/305:12 amROS - IAD
1 stop24h 10mCopa Airlines
Deal found 12/1![Copa Airlines logo]()
$884
This Mytrip deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:45 amIAD - ROS
3 stops28h 25mMultiple Airlines
Thu 4/308:20 amROS - IAD
3 stops30h 40mMultiple Airlines
Deal found 12/1![Multiple Airlines logo]()
$979
This American Airlines deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/195:52 pmIAD - ROS
2 stops55h 13mAmerican Airlines
Sun 3/222:55 amROS - IAD
2 stops38h 36mAmerican Airlines
Deal found 12/1![American Airlines logo]()
$1,113
This Copa Airlines deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:18 amIAD - ROS
1 stop21h 02mCopa Airlines
Sun 3/221:26 amROS - IAD
1 stop27h 49mCopa Airlines
Deal found 11/30![Copa Airlines logo]()
$952
Find flight deals from District of Columbia to Rosario
Keep the following information in mind while searching for District of Columbia to Rosario flight deals. Data was last updated December 3, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $884 (Copa Airlines) |
One-way from | $336 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from District of Columbia 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, Cheapflights users made 2,558,603 searches. Data last updated December 3, 2025.
Use the filters below to find and compare flights from District of Columbia to Rosario that are best for you.
Fly from
District of Columbia
Fly to
Rosario
Route
Depart
Return
Price
Washington, D.C.Rosario
IAD - ROS
IADROS
Washington, D.C. Dulles Intl
Mon 4/13
2:21 am-12:15 am
1 stop20h 54m
Rosario Fisherton
Thu 4/30
5:12 am-4:22 am
1 stop24h 10m
$884
Washington, D.C.Rosario
IAD - ROS
IADROS
Washington, D.C. Dulles Intl
Wed 3/18
2:18 am-12:20 am
1 stop21h 02m
Rosario Fisherton
Sun 3/22
1:26 am-4:15 am
1 stop27h 49m
$952
Washington, D.C.Rosario
IAD - ROS
IADROS
Washington, D.C. Dulles Intl
Tue 4/14
5:45 am-11:10 am
3 stops28h 25m
Rosario Fisherton
Thu 4/30
8:20 am-2:00 pm
3 stops30h 40m
$979
Washington, D.C.Rosario
IAD - ROS
IADROS
Washington, D.C. Dulles Intl
Thu 3/19
5:52 pm-2:05 am
2 stops55h 13m
Rosario Fisherton
Sun 3/22
2:55 am-4:31 pm
2 stops38h 36m
$1,113
Washington, D.C.Rosario
IAD - ROS
IADROS
Washington, D.C. Dulles Intl
Tue 1/13
2:35 pm-12:05 pm
3 stops19h 30m
$336
Washington, D.C.Rosario
DCA - ROS
DCAROS
Washington, D.C. Reagan-National
Tue 1/13
10:15 am-6:10 am
2 stops17h 55m
$375
Washington, D.C.Rosario
IAD - ROS
IADROS
Washington, D.C. Dulles Intl
Tue 1/13
9:00 am-6:10 am
2 stops19h 10m
$375
Washington, D.C.Rosario
IAD - ROS
IADROS
Washington, D.C. Dulles Intl
Tue 1/13
8:25 am-12:20 am
1 stop13h 55m
$466
Best time to book a flight from District of Columbia to Rosario
Have a flexible travel schedule? Discover the best time to fly to Rosario from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from District of Columbia to Rosario
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