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$549+ Cheap flights from Rosario (ROS) to California

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
ROS — LAX
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Rosario to California

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

This Copa Airlines 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/115:20 am
ROS
-
LAX
1 stop22h 09m
Copa Airlines
Tue 3/172:01 am
LAX
-
ROS
1 stop18h 19m
Copa Airlines
Deal found 1/24$898
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:45 am
ROS
-
LAX
1 stop28h 05m
LATAM Airlines
Wed 3/1810:59 pm
LAX
-
ROS
2 stops22h 41m
LATAM Airlines
Deal found 1/24$905
This SmartFares deal was found by Cheapflights users on 1/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/175:12 am
ROS
-
LAX
1 stop22h 07m
Copa Airlines
Sun 5/32:02 am
LAX
-
ROS
1 stop18h 10m
Copa Airlines
Deal found 1/27$924
This SmartFares deal was found by Cheapflights users on 1/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:20 am
ROS
-
LAX
1 stop15h 43m
Copa Airlines
Thu 4/162:37 am
LAX
-
ROS
1 stop17h 38m
Copa Airlines
Deal found 1/27$951
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/111:26 am
ROS
-
LAX
1 stop26h 13m
Copa Airlines
Thu 3/1912:19 pm
LAX
-
ROS
1 stop35h 34m
Copa Airlines
Deal found 1/26$968
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/102:45 am
ROS
-
LAX
2 stops23h 10m
Multiple Airlines
Wed 3/1810:59 pm
LAX
-
ROS
2 stops22h 41m
Multiple Airlines
Deal found 1/24$972
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/111:26 am
ROS
-
LAX
1 stop26h 13m
Multiple Airlines
Wed 3/182:06 am
LAX
-
ROS
2 stops19h 34m
Multiple Airlines
Deal found 1/26$1,003
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:55 am
ROS
-
LAX
2 stops49h 03m
American Airlines
Thu 9/2410:01 pm
LAX
-
ROS
2 stops48h 04m
American Airlines
Deal found 1/25$1,016
This Copa 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:09 am
ROS
-
LAX
1 stop21h 49m
Copa Airlines
Wed 9/231:51 am
LAX
-
ROS
1 stop21h 56m
Copa Airlines
Deal found 1/26$1,047
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Fri 3/137:30 pm
ROS
-
SFO
3 stops32h 10m
Multiple Airlines
Thu 3/192:35 am
SFO
-
ROS
3 stops26h 55m
Multiple Airlines
Deal found 1/27$1,080
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.
Fri 9/1112:10 pm
ROS
-
LAX
2 stops23h 40m
LATAM Airlines
Thu 9/2411:35 am
LAX
-
ROS
1 stop14h 30m
LATAM Airlines
Deal found 1/26$1,083
This Copa Airlines 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:26 am
ROS
-
SFO
1 stop26h 14m
Copa Airlines
Sun 5/311:12 am
SFO
-
ROS
1 stop22h 30m
Copa Airlines
Deal found 1/25$1,112

Find flight deals from Rosario to California

Keep the following information in mind while searching for Rosario to California flight deals. Data was last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$898
(Copa Airlines)

One-way from

$549
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$1,138
Provider with most accurate pricing for Rosario Fisherton-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rosario Fisherton-Los Angeles flights.
Search Deals
From Rosario Fisherton to California
Search Deals
One-way flight from Rosario Fisherton to California
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rosario to California 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 Rosario to California that are best for you.

Fly from

Rosario

Fly to

California

Route

Depart

Return

Price

RosarioLos Angeles

ROS - LAX

ROSLAX

Rosario Fisherton

Wed 3/11

5:20 am-11:29 pm

1 stop22h 09m

Los Angeles

Tue 3/17

2:01 am-12:20 am

1 stop18h 19m

$898

RosarioLos Angeles

ROS - LAX

ROSLAX

Rosario Fisherton

Wed 3/11

7:45 am-7:50 am

1 stop28h 05m

Los Angeles

Wed 3/18

10:59 pm-1:40 am

2 stops22h 41m

$905

RosarioLos Angeles

ROS - LAX

ROSLAX

Rosario Fisherton

Sat 3/28

5:20 am-5:03 pm

1 stop15h 43m

Los Angeles

Thu 4/16

2:37 am-12:15 am

1 stop17h 38m

$951

RosarioLos Angeles

ROS - LAX

ROSLAX

Rosario Fisherton

Wed 3/11

1:26 am-11:39 pm

1 stop26h 13m

Los Angeles

Thu 3/19

12:19 pm-3:53 am

1 stop35h 34m

$968

RosarioLos Angeles

ROS - LAX

ROSLAX

Rosario Fisherton

Tue 3/10

2:45 am-9:55 pm

2 stops23h 10m

Los Angeles

Wed 3/18

10:59 pm-1:40 am

2 stops22h 41m

$972

RosarioSan Francisco

ROS - SFO

ROSSFO

Rosario Fisherton

Fri 3/13

7:30 pm-11:40 pm

3 stops32h 10m

San Francisco

Thu 3/19

2:35 am-9:30 am

3 stops26h 55m

$1,080

RosarioLos Angeles

ROS - LAX

ROSLAX

Rosario Fisherton

Fri 4/17

7:35 am-6:50 pm

1 stop15h 15m

Los Angeles

Mon 5/4

9:30 pm-11:10 am

2 stops33h 40m

$1,098

RosarioSan Francisco

ROS - SFO

ROSSFO

Rosario Fisherton

Wed 3/11

1:26 am-11:40 pm

1 stop26h 14m

San Francisco

Thu 3/19

8:42 pm-12:20 am

1 stop23h 38m

$1,133

RosarioSan Francisco

ROS - SFO

ROSSFO

Rosario Fisherton

Wed 3/11

5:20 am-11:40 pm

1 stop22h 20m

San Francisco

Wed 3/18

8:42 pm-12:20 am

1 stop23h 38m

$1,133

RosarioSan Francisco

ROS - SFO

ROSSFO

Rosario Fisherton

Sun 4/26

5:12 am-11:40 pm

1 stop22h 28m

San Francisco

Fri 5/29

1:12 am-12:12 am

1 stop19h 00m

$1,154

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 23 results
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Best time to book a flight from Rosario to California

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

Cheapflights Insights

Everything you need to know about your flight from Rosario to California

What is the cheapest month to book a flight from Rosario to California?

Currently, April is the cheapest month in which you can book a flight from Rosario to California (average of $896). Flying from Rosario to California in October is currently the most expensive (average of $1,411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Rosario to California?

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. 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 California. Reviews last updated January 27, 2026.
Read through reviews of airlines operating flights from Rosario to California, such as LATAM Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,912 reviews

Food

6.7

Boarding

7.6

Entertainment

7.0

Comfort

7.3

Overall

7.5

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken
LATAM Airlines
7.5
Good
1,912 reviews
LATAM Airlines
7.5
Good
1,912 reviews

Food

6.7

Boarding

7.6

Entertainment

7.0

Comfort

7.3

Overall

7.5

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

Related info for your journey

Find useful and relevant information for your journey from Rosario to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Rosario to California?

    Located just 6.6 mi from the city center, Rosario Fisherton (ROS) is the airport most travelers will use when flying to California from Rosario.

  • How long is the flight from Rosario to California?

    Airlines like Copa Airlines and LATAM Airlines fly from Rosario to California in about 22h 09m. The time it takes to get you to your destination can typically vary by up to 5h 56m. The distance between Rosario and California is about 5938 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Rosario to California?

    The most popular route from Rosario to California is Rosario Fisherton - San Francisco. You may also consider Rosario Fisherton - Los Angeles or Rosario Fisherton - Sacramento Intl.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Rosario to California?

    Currently, April is the cheapest month in which you can book a flight from Rosario to California (average of $896). Flying from Rosario to California in October is currently the most expensive (average of $1,411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Rosario to California

Discover the top airline that operate flights from Rosario to California. 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 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$904Average$1,138FlexibilityNo cancel feeOn-time81%

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