Rosario

$753+ Cheap flights from Baltimore (BWI) to Rosario (ROS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ROS
Feb 26 — Mar 51
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Rosario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Baltimore to Rosario

Cheapest flights from Baltimore to Rosario
Explore the most affordable flight options available from Baltimore to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This BusinessClass deal was found by Cheapflights users on 1/26. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/83:45 pm
BWI
-
ROS
1 stop30h 35m
Copa Airlines
Sun 3/85:20 am
ROS
-
BWI
1 stop34h 51m
Copa Airlines
Deal found 1/26$753
This Mytrip deal was found by Cheapflights users on 1/25. 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.
Sat 3/216:20 am
BWI
-
ROS
3 stops27h 35m
Multiple Airlines
Sun 4/511:00 pm
ROS
-
BWI
3 stops35h 14m
Multiple Airlines
Deal found 1/25$1,126
This BusinessClass deal was found by Cheapflights users on 1/25. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/214:45 pm
BWI
-
ROS
1 stop34h 08m
Copa Airlines
Sun 4/55:12 am
ROS
-
BWI
1 stop35h 05m
Copa Airlines
Deal found 1/25$1,296
This BusinessClass deal was found by Cheapflights users on 1/25. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/217:28 am
BWI
-
ROS
2 stops21h 42m
LATAM Airlines
Sun 4/57:35 am
ROS
-
BWI
2 stops18h 18m
LATAM Airlines
Deal found 1/25$2,231
This LATAM Airlines deal was found by Cheapflights users on 1/26. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:15 am
BWI
-
ROS
2 stops20h 55m
LATAM Airlines
Sun 3/82:45 am
ROS
-
BWI
2 stops23h 08m
LATAM Airlines
Deal found 1/26$2,681

Find flight deals from Baltimore to Rosario

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Rosario (ROS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$753
(BusinessClass)
Provider with most accurate pricing for Washington, D.C. (WAS)-Rosario Fisherton flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Rosario Fisherton flights.
From Baltimore/Washington to Rosario Fisherton

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore 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 January 27, 2026.
Use the filters below to find and compare flights from Baltimore to Rosario that are best for you.

Fly from

Baltimore

Fly to

Rosario

Route

Depart

Return

Price

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Sun 2/8

3:45 pm-12:20 am

1 stop30h 35m

Rosario Fisherton

Sun 3/8

5:20 am-3:11 pm

1 stop34h 51m

$753

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Sat 3/21

6:20 am-10:55 am

3 stops27h 35m

Rosario Fisherton

Sun 4/5

11:00 pm-9:14 am

3 stops35h 14m

$1,126

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Sat 3/21

4:45 pm-3:53 am

1 stop34h 08m

Rosario Fisherton

Sun 4/5

5:12 am-3:17 pm

1 stop35h 05m

$1,296

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Sat 3/21

7:28 am-6:10 am

2 stops21h 42m

Rosario Fisherton

Sun 4/5

7:35 am-12:53 am

2 stops18h 18m

$2,231

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Thu 3/5

6:00 am-6:10 am

2 stops22h 10m

Rosario Fisherton

Sun 3/8

2:45 am-12:53 am

2 stops23h 08m

$2,681

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Best time to book a flight from Baltimore to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Baltimore 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.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Rosario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Baltimore to Rosario?

    For as low as $2,231, Copa Airlines can have you in Rosario from Baltimore in 21h 42m. Baltimore and Rosario are separated by a distance of 5080 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Baltimore to Rosario that include hotel bookings?

    Yes. In addition to deals on Baltimore to Rosario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Rosario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Rosario.

  • Can I find deals for business class flights from Baltimore to Rosario?

    Yes. Cheapflights offers flight deals from Baltimore to Rosario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.