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Rosario

$1,079+ Cheap flights from San Francisco (SFO) 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ROS
Feb 24 — Mar 31
Tue 2/24
Tue 3/3
1 adult, Economy
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Cheap flight deals from San Francisco to Rosario

Cheapest flights from San Francisco to Rosario
Explore the most affordable flight options available from San Francisco to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 25, 2026.

This BusinessClass deal was found by Cheapflights users on 1/24. 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.
Tue 6/301:12 am
SFO
-
ROS
1 stop22h 31m
Copa Airlines
Fri 7/311:23 am
ROS
-
SFO
1 stop26h 17m
Copa Airlines
Deal found 1/24$1,079
This Gurufare deal was found by Cheapflights users on 1/24. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/11:51 pm
SFO
-
ROS
2 stops36h 14m
Multiple Airlines
Sat 8/112:10 pm
ROS
-
SFO
2 stops28h 27m
Multiple Airlines
Deal found 1/24$1,776
This Gurufare deal was found by Cheapflights users on 1/24. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/14:15 pm
SFO
-
ROS
2 stops33h 50m
LATAM Airlines
Sat 8/112:45 pm
ROS
-
SFO
3 stops27h 14m
LATAM Airlines
Deal found 1/24$2,228

Find flight deals from San Francisco to Rosario

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,079
(BusinessClass)
Provider with most accurate pricing for San Francisco-Rosario Fisherton flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Rosario Fisherton flights.
Search Deals
From San Francisco to Rosario Fisherton
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 25, 2026.
Use the filters below to find and compare flights from San Francisco to Rosario that are best for you.

Fly from

San Francisco

Fly to

Rosario

Route

Depart

Return

Price

San FranciscoRosario

SFO - ROS

SFOROS

San Francisco

Tue 6/30

1:12 am-3:43 am

1 stop22h 31m

Rosario Fisherton

Fri 7/31

1:23 am-11:40 pm

1 stop26h 17m

$1,079

San FranciscoRosario

SFO - ROS

SFOROS

San Francisco

Wed 7/1

1:51 pm-6:05 am

2 stops36h 14m

Rosario Fisherton

Sat 8/1

12:10 pm-12:37 pm

2 stops28h 27m

$1,776

San FranciscoRosario

SFO - ROS

SFOROS

San Francisco

Wed 7/1

4:15 pm-6:05 am

2 stops33h 50m

Rosario Fisherton

Sat 8/1

12:45 pm-11:59 am

3 stops27h 14m

$2,228

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Compare providers for flights from San Francisco 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 San Francisco to Rosario in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*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 San Francisco-Rosario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Rosario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Rosario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-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 San Francisco-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 San Francisco to Rosario

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

Reviews of airlines servicing Rosario

Get insights into the airlines that provide service to Rosario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Rosario. Reviews last updated January 25, 2026.
See what other customers who have flown with Copa Airlines from San Francisco to Rosario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,558 reviews

Comfort

7.4

Overall

7.6

Boarding

7.8

Entertainment

6.8

Crew

8.1

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.
Copa Airlines
7.6
Good
1,558 reviews
Copa Airlines
7.6
Good
1,558 reviews

Comfort

7.4

Overall

7.6

Boarding

7.8

Entertainment

6.8

Crew

8.1

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

Related info for your journey

Find useful and relevant information for your journey from San Francisco 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 San Francisco to Rosario?

    A quick flight from San Francisco to Rosario can take about 22h 31m. Copa Airlines provides one of the quickest options available for as low as $1,079. The distance from San Francisco to Rosario is about 6274 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from San Francisco to Rosario round-trip?

    Currently priced at $993, Copa Airlines will fly you from San Francisco to Rosario and back. In addition to Copa Airlines, many other airlines offer competitively priced options for your trip.

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

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

  • How can I find direct flights from San Francisco to Rosario?

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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

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Top airline flying from San Francisco to Rosario

Discover the top airline that operate flights from San Francisco to Rosario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$993Average$1,367FlexibilityNo cancel feeOn-time70%

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