Cheap flights from District of Columbia to Rosario from $420

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Rosario departing on 6/16. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
2:00 pm - 11:40 am
DCA
-
ROS
20h 40m
2 stops
LATAM Airlines Logo
12:40 pm - 2:05 pm
ROS
-
DCA
26h 25m
2 stops
$871LATAM Airlines
Tue, Aug 25 - Sat, Aug 29
Multiple Airlines Logo
10:18 pm - 11:15 am
IAD
-
ROS
35h 57m
2 stops
Multiple Airlines Logo
1:23 am - 9:22 pm
ROS
-
IAD
20h 59m
2 stops
$897Multiple Airlines
Thu, Oct 1 - Mon, Oct 12
LATAM Airlines Logo
12:27 pm - 6:10 am
DCA
-
ROS
16h 43m
2 stops
LATAM Airlines Logo
12:40 pm - 2:05 pm
ROS
-
DCA
26h 25m
2 stops
$926LATAM Airlines
Tue, Aug 25 - Sat, Aug 29
LATAM Airlines Logo
6:00 am - 6:10 am
IAD
-
ROS
23h 10m
2 stops
LATAM Airlines Logo
7:40 am - 10:01 am
ROS
-
IAD
27h 21m
2 stops
$926LATAM Airlines
Sat, Aug 29 - Wed, Sep 2
LATAM Airlines Logo
7:00 am - 6:10 am
DCA
-
ROS
22h 10m
2 stops
LATAM Airlines Logo
7:40 am - 10:09 am
ROS
-
DCA
27h 29m
2 stops
$940LATAM Airlines
Sun, Jul 12 - Sun, Jul 19
Copa Airlines Logo
2:25 am - 12:17 am
IAD
-
ROS
20h 52m
1 stop
Copa Airlines Logo
1:23 am - 3:04 pm
ROS
-
IAD
14h 41m
1 stop
$1,313Copa Airlines
Wed, Sep 30 - Mon, Oct 12
Multiple Airlines Logo
6:50 am - 6:10 am
IAD
-
ROS
22h 20m
3 stops
Multiple Airlines Logo
7:40 am - 5:20 am
ROS
-
IAD
22h 40m
2 stops
$1,549Multiple Airlines
Thu, Oct 1 - Tue, Oct 13
Copa Airlines Logo
6:25 am - 3:43 am
IAD
-
ROS
20h 18m
1 stop
Copa Airlines Logo
1:23 am - 4:21 am
ROS
-
IAD
27h 58m
1 stop
$1,595Copa Airlines
Sat, Jul 11 - Fri, Jul 17
Multiple Airlines Logo
6:50 am - 6:10 am
IAD
-
ROS
22h 20m
3 stops
Multiple Airlines Logo
7:40 am - 3:19 pm
ROS
-
IAD
32h 39m
3 stops
$1,599Multiple Airlines
Thu, Oct 1 - Tue, Oct 13
Multiple Airlines Logo
7:35 pm - 6:10 am
IAD
-
ROS
33h 35m
3 stops
Multiple Airlines Logo
12:40 pm - 2:15 pm
ROS
-
IAD
26h 35m
3 stops
$1,769Multiple Airlines
Sat, Jul 11 - Sat, Jul 18

LATAM Airlines flights from District of Columbia to Rosario

Our best LATAM Airlines deals on District of Columbia to Rosario flight tickets
LATAM Airlines
Aug 25
DCA2:00 pmWashington, D.C. Reagan-National
20h 40m
2 stops
ROS11:40 amRosario Fisherton
Aug 29
ROS12:40 pmRosario Fisherton
26h 25m
2 stops
DCA2:05 pmWashington, D.C. Reagan-National
$871
LATAM Airlines
Aug 25
DCA12:27 pmWashington, D.C. Reagan-National
16h 43m
2 stops
ROS6:10 amRosario Fisherton
Aug 29
ROS12:40 pmRosario Fisherton
26h 25m
2 stops
DCA2:05 pmWashington, D.C. Reagan-National
$926
LATAM Airlines
Jun 1
DCA2:47 pmWashington, D.C. Reagan-National
38h 03m
2 stops
ROS5:50 amRosario Fisherton
Jun 6
ROS12:40 pmRosario Fisherton
26h 25m
2 stops
DCA2:05 pmWashington, D.C. Reagan-National
$939

Copa Airlines flights from District of Columbia to Rosario

Our best Copa Airlines deals on District of Columbia to Rosario flight tickets
Copa Airlines
Sep 30
IAD2:25 amWashington, D.C. Dulles Intl
20h 52m
1 stop
ROS12:17 amRosario Fisherton
Oct 12
ROS1:23 amRosario Fisherton
14h 41m
1 stop
IAD3:04 pmWashington, D.C. Dulles Intl
$1,313
Copa Airlines
Jul 11
IAD6:25 amWashington, D.C. Dulles Intl
20h 18m
1 stop
ROS3:43 amRosario Fisherton
Jul 17
ROS1:23 amRosario Fisherton
27h 58m
1 stop
IAD4:21 amWashington, D.C. Dulles Intl
$1,595
Copa Airlines
Jun 1
IAD4:38 pmWashington, D.C. Dulles Intl
30h 33m
1 stop
ROS12:11 amRosario Fisherton
Jun 6
ROS5:09 amRosario Fisherton
20h 24m
1 stop
IAD12:33 amWashington, D.C. Dulles Intl
$1,600

momondo 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, momondo users made 832,500 searches. Data last updated May 30, 2026.
Use the filters below to find and compare flights from District of Columbia 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

Tue 8/25

2:00 pm-11:40 am

2 stops20h 40m

Rosario Fisherton

Sat 8/29

12:40 pm-2:05 pm

2 stops26h 25m

$871

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Thu 10/1

10:18 pm-11:15 am

2 stops35h 57m

Rosario Fisherton

Mon 10/12

1:23 am-9:22 pm

2 stops20h 59m

$897

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Tue 8/25

12:27 pm-6:10 am

2 stops16h 43m

Rosario Fisherton

Sat 8/29

12:40 pm-2:05 pm

2 stops26h 25m

$926

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sat 8/29

6:00 am-6:10 am

2 stops23h 10m

Rosario Fisherton

Wed 9/2

7:40 am-10:01 am

2 stops27h 21m

$926

Washington, D.C.Rosario

DCA - ROS

DCAROS

Washington, D.C. Reagan-National

Sun 7/12

7:00 am-6:10 am

2 stops22h 10m

Rosario Fisherton

Sun 7/19

7:40 am-10:09 am

2 stops27h 29m

$940
Quickest round-trip

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Wed 9/30

2:25 am-12:17 am

1 stop20h 52m

Rosario Fisherton

Mon 10/12

1:23 am-3:04 pm

1 stop14h 41m

$1,313

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Thu 10/1

6:50 am-6:10 am

3 stops22h 20m

Rosario Fisherton

Tue 10/13

7:40 am-5:20 am

2 stops22h 40m

$1,549

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sat 7/11

6:25 am-3:43 am

1 stop20h 18m

Rosario Fisherton

Fri 7/17

1:23 am-4:21 am

1 stop27h 58m

$1,595

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Thu 10/1

6:50 am-6:10 am

3 stops22h 20m

Rosario Fisherton

Tue 10/13

7:40 am-3:19 pm

3 stops32h 39m

$1,599

Washington, D.C.Rosario

IAD - ROS

IADROS

Washington, D.C. Dulles Intl

Sat 7/11

7:35 pm-6:10 am

3 stops33h 35m

Rosario Fisherton

Sat 7/18

12:40 pm-2:15 pm

3 stops26h 35m

$1,769

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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How to get the cheapest flight ticket from District of Columbia 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 District of Columbia to Rosario flights?

You could potentially save up to 18% on your flight if you consider stops on a District of Columbia to Rosario flight.

Cheap District of Columbia to Rosario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Rosario

Fastest flight time

18h 04m

Direct flights

None
The fastest flight from District of Columbia to Rosario takes 18h 04m
There are no direct flights from District of Columbia to Rosario. There are no popular flight routes from District of Columbia to Rosario.

Frequently asked questions about flying from District of Columbia to Rosario

  • When did momondo last update prices for flights from District of Columbia to Rosario Fisherton Airport?

    Prices for flights from District of Columbia to Rosario Fisherton Airport refresh daily.

  • How old do you have to be to fly from District of Columbia to Rosario Fisherton Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia 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.

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Rosario?

It is quick and easy to find District of Columbia to Rosario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Rosario that suits you.

Can I find flights from District of Columbia to Rosario with flexible booking policies on momondo?

All flight searches from District of Columbia to Rosario on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from District of Columbia to Rosario?

momondo helps you find the best flight between District of Columbia and Rosario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from District of Columbia to Rosario right now. Can momondo alert me if prices change?

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1 adult
Mon 6/29
Mon 7/6

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