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Rosario

$970+ Cheap flights from Los Angeles (LAX) 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ROS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$1,047
(Copa Airlines)

Popular in

December

Cheapest in

September

Average price

$1,059
From Los Angeles to Rosario Fisherton
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($242 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2811:30 amLAX - ROS
1 stop14h 35mLATAM Airlines
Fri 9/127:30 amROS - LAX
1 stop15h 25mLATAM Airlines
Deal found 8/11$970
This Copa Airlines deal was found by Cheapflights users on 8/11. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:47 amLAX - ROS
1 stop21h 57mCopa Airlines
Mon 11/101:21 amROS - LAX
1 stop19h 44mCopa Airlines
Deal found 8/11$1,025
This Copa Airlines deal was found by Cheapflights users on 8/13. 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 8/262:01 amLAX - ROS
1 stop18h 13mCopa Airlines
Fri 8/291:22 amROS - LAX
1 stop15h 08mCopa Airlines
Deal found 8/13$1,047
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:50 pmLAX - ROS
3 stops33h 02mMultiple Airlines
Thu 9/111:22 amROS - LAX
1 stop15h 08mMultiple Airlines
Deal found 8/11$1,081
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2812:05 pmLAX - ROS
1 stop32h 09mCopa Airlines
Thu 9/111:22 amROS - LAX
1 stop25h 40mCopa Airlines
Deal found 8/11$1,101
This Gotogate deal was found by Cheapflights users on 8/13. 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 8/139:25 pmLAX - ROS
1 stop28h 40mLATAM Airlines
Wed 8/207:30 amROS - LAX
1 stop15h 25mLATAM Airlines
Deal found 8/13$1,144
This Expedia deal was found by Cheapflights users on 8/13. 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 8/133:21 pmLAX - ROS
2 stops34h 44mMultiple Airlines
Wed 8/207:30 amROS - LAX
1 stop15h 25mMultiple Airlines
Deal found 8/13$1,166
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Tue 8/261:46 amLAX - ROS
1 stop18h 28mMultiple Airlines
Sat 8/303:05 pmROS - LAX
2 stops19h 55mMultiple Airlines
Deal found 8/13$1,242

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 August 14, 2025.
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

Tue 8/26

2:01 am-12:14 am

1 stop18h 13m

Rosario Fisherton

Fri 8/29

1:22 am-12:30 pm

1 stop15h 08m

$1,047

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Sun 9/28

3:15 pm-7:20 pm

2 stops24h 05m

Rosario Fisherton

Sun 10/5

10:15 pm-6:25 am

2 stops36h 10m

$1,185

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Tue 8/26

1:46 am-12:14 am

1 stop18h 28m

Rosario Fisherton

Sat 8/30

3:05 pm-7:00 am

2 stops19h 55m

$1,242

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Mon 9/15

9:25 pm-6:05 am

1 stop28h 40m

Rosario Fisherton

Tue 9/23

1:05 pm-12:30 pm

3 stops27h 25m

$1,382

Los AngelesRosario

LAX - ROS

LAXROS

Los Angeles

Fri 12/26

2:05 pm-6:05 am

2 stops35h 00m

Rosario Fisherton

Sat 1/10

2:45 am-6:00 pm

2 stops44h 15m

$1,514

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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.

Cheapflights Insights

Everything you need to know about your flight from Los Angeles to Rosario

What is the cheapest time of day to fly from LAX to ROS?

Find hourly flight availability from Los Angeles to Rosario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

It’s optimal to fly from Los Angeles to Rosario at noon. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the morning.

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

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 August 14, 2025.
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
1,840 reviews

Comfort

7.4

Entertainment

7.0

Crew

8.0

Food

6.7

Boarding

7.6

Overall

7.5

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
LATAM Airlines
7.5
Good
1,840 reviews
LATAM Airlines
7.5
Good
1,840 reviews

Comfort

7.4

Entertainment

7.0

Crew

8.0

Food

6.7

Boarding

7.6

Overall

7.5

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Copa Airlines
7.5
Good
1,509 reviews
LATAM Airlines
7.5
Good
1,840 reviews

Comfort

7.4

Entertainment

7.0

Crew

8.0

Food

6.7

Boarding

7.6

Overall

7.5

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

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.

  • 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 $535. Another option worth looking into is Copa Airlines, starting at $804 round trip. These flights start at 57% 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$535Average$1,371FlexibilityNo cancel feeOn-time81%
Copa AirlinesCheapest$804Average$1,243FlexibilityNo cancel feeOn-time70%

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