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Rosario

$1,413+ Cheap flights from Portland (PDX) 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ROS
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheap flight deals from Portland to Rosario

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 julio 3, 2025.

Round-trip from

$1,413
(LATAM Airlines)
From Portland to Rosario Fisherton
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Cheapest flights from Portland to Rosario
Explore the most affordable flight options available from Portland to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This LATAM Airlines deal was found by Cheapflights users on 7/1. 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.
mar. 10/216:30 amPDX - ROS
2 stops19h 35mLATAM Airlines
vie. 10/247:30 amROS - PDX
2 stops32h 23mLATAM Airlines
Deal found 7/1$1,413

Cheapflights Fare Finder

Customize your flight search to find flights from Portland 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 julio 3, 2025.
Use the filters below to find and compare flights from Portland to Rosario that are best for you.

Fly from

Portland

Fly to

Rosario

Route

Depart

Return

Price

PortlandRosario

PDX - ROS

PDXROS

Portland

mar. 10/21

6:30 am-6:05 am

2 stops19h 35m

Rosario Fisherton

vie. 10/24

7:30 am-11:53 am

2 stops32h 23m

$1,413

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Portland to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Portland 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 julio 3, 2025.
Get a feel of what it's like to fly with LATAM Airlines from Portland to Rosario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,805 reviews

Comfort

7.4

Food

6.7

Overall

7.5

Crew

8.1

Entertainment

7.0

Boarding

7.6

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
1,805 reviews
LATAM Airlines
7.5
Good
1,805 reviews

Comfort

7.4

Food

6.7

Overall

7.5

Crew

8.1

Entertainment

7.0

Boarding

7.6

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 Portland to Rosario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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.

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