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Rosario

$348+ Cheap flights from Baltimore (BWI) 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.
BWI — ROS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Baltimore to Rosario

One-way flights from Baltimore to Rosario
Search for one-way flight options from Baltimore to Rosario. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

This eDestinos deal was found by Cheapflights users on 12/10. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/134:45 pmBWI - ROS
2 stops37h 45mMultiple Airlines
Deal found 12/10$348
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/46:18 pmBWI - ROS
3 stops37h 17mMultiple Airlines
Deal found 12/10$440
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/43:37 pmBWI - ROS
1 stop30h 43mCopa Airlines
Deal found 12/10$542
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/133:37 pmBWI - ROS
1 stop30h 43mCopa Airlines
Deal found 12/10$579
This American Airlines deal was found by Cheapflights users on 12/10. 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.
Sun 1/46:49 pmBWI - ROS
2 stops29h 11mAmerican Airlines
Deal found 12/10$641

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars
Provider with most accurate pricing for Washington, D.C. (WAS)-Rosario Fisherton flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Rosario Fisherton flights.
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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 December 12, 2025.
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

Tue 1/13

4:45 pm-8:30 am

2 stops37h 45m

$348

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Sun 1/4

6:18 pm-9:35 am

3 stops37h 17m

$440

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Sun 1/4

3:37 pm-12:20 am

1 stop30h 43m

$542

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Tue 1/13

3:37 pm-12:20 am

1 stop30h 43m

$579

BaltimoreRosario

BWI - ROS

BWIROS

Baltimore/Washington

Sun 1/4

6:49 pm-2:00 am

2 stops29h 11m

$641

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

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.

  • 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.

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