HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rosario

$430+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ROS
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Los Angeles to Rosario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 12, 2026.

This LATAM Airlines deal was found by Cheapflights users on 2/11. 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 11/310:45 pm
LAX
-
ROS
2 stops35h 40m
LATAM Airlines
Fri 11/67:35 am
ROS
-
LAX
1 stop15h 25m
LATAM Airlines
Deal found 2/11$684
This Copa Airlines deal was found by Cheapflights users on 2/9. 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.
Mon 3/232:06 am
LAX
-
ROS
1 stop18h 14m
Copa Airlines
Tue 5/265:09 am
ROS
-
LAX
1 stop22h 27m
Copa Airlines
Deal found 2/9$1,001
This Copa Airlines deal was found by Cheapflights users on 2/9. 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.
Thu 3/262:01 am
LAX
-
ROS
1 stop18h 19m
Copa Airlines
Fri 4/35:12 am
ROS
-
LAX
1 stop15h 56m
Copa Airlines
Deal found 2/9$1,155
This Mytrip deal was found by Cheapflights users on 2/9. 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.
Tue 3/248:15 am
LAX
-
ROS
3 stops31h 10m
Multiple Airlines
Tue 5/268:15 pm
ROS
-
LAX
3 stops30h 25m
Multiple Airlines
Deal found 2/9$1,239
This Mytrip deal was found by Cheapflights users on 2/9. 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 3/2711:30 pm
LAX
-
ROS
3 stops31h 00m
Multiple Airlines
Fri 4/38:05 pm
ROS
-
LAX
3 stops39h 08m
Multiple Airlines
Deal found 2/9$1,260

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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,001
(Copa Airlines)

One-way from

$430
(KAYAK)
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

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 February 12, 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

Mon 3/23

2:06 am-12:20 am

1 stop18h 14m

Rosario Fisherton

Tue 5/26

5:09 am-11:36 pm

1 stop22h 27m

$1,001

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Thu 3/26

2:01 am-12:20 am

1 stop18h 19m

Rosario Fisherton

Fri 4/3

5:12 am-5:08 pm

1 stop15h 56m

$1,155

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Tue 3/24

8:15 am-7:25 pm

3 stops31h 10m

Rosario Fisherton

Tue 5/26

8:15 pm-10:40 pm

3 stops30h 25m

$1,239

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Fri 3/27

11:30 pm-10:30 am

3 stops31h 00m

Rosario Fisherton

Fri 4/3

8:05 pm-7:13 am

3 stops39h 08m

$1,260

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Wed 3/11

2:06 am-1:40 am

2 stops19h 34m

Rosario Fisherton

Thu 3/19

4:10 am-7:20 am

1 stop31h 10m

$1,338

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Wed 2/18

11:59 pm-1:25 pm

2 stops32h 26m

$430

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Mon 3/23

11:30 pm-6:10 am

2 stops26h 40m

$434

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Wed 3/25

5:55 am-3:53 am

2 stops17h 58m

$440

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Tue 2/17

1:01 am-12:20 am

1 stop18h 19m

$467

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Sun 3/22

2:01 am-3:53 am

1 stop21h 52m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 12 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 February.
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

*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 February 12, 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
1,920 reviews

Boarding

7.5

Overall

7.5

Food

6.7

Crew

8.0

Entertainment

7.0

Comfort

7.3

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
1,920 reviews
LATAM Airlines
7.5
Good
1,920 reviews

Boarding

7.5

Overall

7.5

Food

6.7

Crew

8.0

Entertainment

7.0

Comfort

7.3

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
1,559 reviews
LATAM Airlines
7.5
Good
1,920 reviews

Boarding

7.5

Overall

7.5

Food

6.7

Crew

8.0

Entertainment

7.0

Comfort

7.3

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 14m. There are 5938 mi between Los Angeles and Rosario.

  • 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.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$449Average$1,322FlexibilityNo cancel feeOn-time81%
Copa AirlinesCheapest$997Average$1,096FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.