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Rosario

$411+ Cheap flights from Los Angeles (LAX) 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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ROS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Los Angeles to Rosario

Cheapest flights from Los Angeles to Rosario
Explore the most affordable flight options available from Los Angeles to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This LATAM Airlines 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:59 pm
LAX
-
ROS
2 stops34h 26m
LATAM Airlines
Fri 11/67:35 am
ROS
-
LAX
1 stop15h 25m
LATAM Airlines
Deal found 1/27$684
This LATAM Airlines 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:20 pm
LAX
-
ROS
2 stops33h 50m
LATAM Airlines
Sun 4/267:35 am
ROS
-
LAX
1 stop15h 25m
LATAM Airlines
Deal found 1/27$958
This Copa Airlines 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/142:09 am
LAX
-
ROS
1 stop18h 06m
Copa Airlines
Sat 4/251:26 am
ROS
-
LAX
1 stop15h 34m
Copa Airlines
Deal found 1/27$969
This Gotogate deal was found by Cheapflights users on 1/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:35 am
LAX
-
ROS
2 stops23h 50m
LATAM Airlines
Mon 11/912:10 pm
ROS
-
LAX
2 stops23h 40m
LATAM Airlines
Deal found 1/28$978
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:30 pm
LAX
-
ROS
1 stop28h 40m
LATAM Airlines
Tue 3/32:45 am
ROS
-
LAX
2 stops33h 05m
LATAM Airlines
Deal found 1/27$991

Find flight deals from Los Angeles to Rosario

Discover tips and strategies to find the most affordable flight options for your journey from Los Angeles (LAX) 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 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$958
(LATAM Airlines)

One-way from

$411
(Kiwi.com)

Popular in

December

Cheapest in

September
Provider with most accurate pricing for Los Angeles-Rosario Fisherton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Rosario Fisherton flights.
Search Deals
From Los Angeles to Rosario Fisherton
Search Deals
One-way flight from Los Angeles to Rosario Fisherton
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($330 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($52 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Los Angeles 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 29, 2026.
Use the filters below to find and compare flights from Los Angeles to Rosario that are best for you.

Fly from

Los Angeles

Fly to

Rosario

Route

Depart

Return

Price

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Wed 4/15

9:20 pm-11:10 am

2 stops33h 50m

Rosario Fisherton

Sun 4/26

7:35 am-7:00 pm

1 stop15h 25m

$958

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Tue 4/14

2:09 am-12:15 am

1 stop18h 06m

Rosario Fisherton

Sat 4/25

1:26 am-1:00 pm

1 stop15h 34m

$969

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Wed 2/25

8:30 pm-6:10 am

1 stop28h 40m

Rosario Fisherton

Tue 3/3

2:45 am-6:50 am

2 stops33h 05m

$991

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Wed 2/18

9:08 pm-12:20 am

1 stop22h 12m

Rosario Fisherton

Wed 4/29

1:26 am-1:00 pm

1 stop15h 34m

$1,021

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Sat 2/14

9:08 pm-12:20 am

1 stop22h 12m

Rosario Fisherton

Sun 2/22

5:20 am-10:39 pm

1 stop22h 19m

$1,021

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Sun 3/15

10:55 pm-6:10 am

2 stops51h 15m

Rosario Fisherton

Sun 4/12

7:35 am-9:19 pm

2 stops41h 44m

$1,051

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Tue 2/24

10:30 am-6:10 am

1 stop14h 40m

Rosario Fisherton

Tue 3/10

2:45 am-7:50 am

2 stops33h 05m

$1,107

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Sat 3/14

11:40 pm-11:00 am

3 stops31h 20m

Rosario Fisherton

Sat 4/18

8:20 am-10:52 pm

3 stops42h 32m

$1,134

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Sat 3/14

12:25 am-8:30 am

3 stops52h 05m

$411

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Thu 3/12

2:01 am-8:30 am

3 stops50h 29m

$427

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 20 results
1
2

Compare providers for flights from Los Angeles 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 Los Angeles to Rosario in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust 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 Los Angeles-Rosario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Los Angeles-Rosario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Los Angeles-Rosario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Los Angeles-Rosario flights, Cheapflights users trust FlightHub the most. FlightHub 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 Los Angeles-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 Los Angeles to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Los Angeles 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 29, 2026.
Read reviews from past customers who have flown LATAM Airlines and Copa Airlines from Los Angeles to Rosario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,918 reviews

Entertainment

7.0

Crew

8.0

Comfort

7.3

Overall

7.5

Boarding

7.5

Food

6.7

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.
LATAM Airlines
7.5
Good
1,918 reviews
LATAM Airlines
7.5
Good
1,918 reviews

Entertainment

7.0

Crew

8.0

Comfort

7.3

Overall

7.5

Boarding

7.5

Food

6.7

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.
Copa Airlines
7.5
Good
1,560 reviews
LATAM Airlines
7.5
Good
1,918 reviews

Entertainment

7.0

Crew

8.0

Comfort

7.3

Overall

7.5

Boarding

7.5

Food

6.7

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

Related info for your journey

Find useful and relevant information for your journey from Los Angeles 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 Los Angeles to Rosario?

    Departing from Los Angeles to Rosario will take you 18h 06m. There are 5938 mi between Los Angeles and Rosario. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Los Angeles to Rosario round-trip?

    Flying on LATAM Airlines is currently your cheapest option to Rosario, with prices starting at $449. Another option worth looking into is Copa Airlines, starting at $997 round trip. These flights start at 64% lower than the current average price 3 months from now.

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

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

  • How can I find direct flights from Los Angeles to Rosario?

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

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

    Yes. Cheapflights offers flight deals from Los Angeles 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 2 airlines flying from Los Angeles to Rosario

Discover the top 2 airlines that operate flights from Los Angeles 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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$449Average$1,322FlexibilityNo cancel feeOn-time81%
Copa AirlinesCheapest$997Average$1,106FlexibilityNo cancel feeOn-time70%

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