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Rosario

$1,036+ Cheap flights from Boston (BOS) 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ROS
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find flight deals from Boston to Rosario

Best flights from Boston to Rosario
Discover carefully curated flight deals from Boston to Rosario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2025.

This Travelocity deal was found by Cheapflights users on 10/28. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/113:50 pmBOS - ROS
2 stops37h 20mLATAM Airlines
Wed 3/187:45 amROS - BOS
2 stops24h 39mLATAM Airlines
Deal found 10/28$1,036
This Copa Airlines deal was found by Cheapflights users on 10/28. 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 3/118:44 amBOS - ROS
1 stop14h 36mCopa Airlines
Tue 3/171:26 amROS - BOS
1 stop22h 44mCopa Airlines
Deal found 10/28$1,198
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Wed 3/119:55 amBOS - ROS
1 stop15h 20mMultiple Airlines
Wed 3/187:45 amROS - BOS
2 stops24h 50mMultiple Airlines
Deal found 10/28$1,198

Cheap flight deals from Boston to Rosario

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 October 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,036
(Travelocity)
Provider with most accurate pricing for Boston Logan Intl-Rosario Fisherton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Rosario Fisherton flights.
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From Boston Logan Intl to Rosario Fisherton
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 October 29, 2025.
Use the filters below to find and compare flights from Boston to Rosario that are best for you.

Fly from

Boston

Fly to

Rosario

Route

Depart

Return

Price

BostonRosario

BOS - ROS

BOSROS

Boston Logan Intl

Wed 3/11

3:50 pm-6:10 am

2 stops37h 20m

Rosario Fisherton

Wed 3/18

7:45 am-7:24 am

2 stops24h 39m

$1,036

BostonRosario

BOS - ROS

BOSROS

Boston Logan Intl

Wed 3/11

8:44 am-12:20 am

1 stop14h 36m

Rosario Fisherton

Tue 3/17

1:26 am-11:10 pm

1 stop22h 44m

$1,198

BostonRosario

BOS - ROS

BOSROS

Boston Logan Intl

Wed 3/11

9:55 am-2:15 am

1 stop15h 20m

Rosario Fisherton

Wed 3/18

7:45 am-7:35 am

2 stops24h 50m

$1,198

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Compare providers for flights from Boston to Rosario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Rosario in October.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Rosario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Rosario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Rosario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Rosario flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Rosario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Rosario

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

    For as low as $1,198, LATAM Airlines can have you in Rosario from Boston in 14h 36m. Boston and Rosario are separated by a distance of 5237 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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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