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$1,493+ Cheap flights from Oregon 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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ROS
Mar 22 — Mar 291
Sun 3/22
Sun 3/29
1 adult, Economy
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Cheap flight deals from Oregon to Rosario

Cheapest flights from Oregon to Rosario
Explore the most affordable flight options available from Oregon to Rosario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2026.

This Ovago deal was found by Cheapflights users on 2/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/189:30 pm
PDX
-
ROS
2 stops27h 35m
Multiple Airlines
Fri 1/17:35 am
ROS
-
PDX
2 stops20h 19m
Multiple Airlines
Deal found 2/18$1,493
This LATAM Airlines deal was found by Cheapflights users on 2/19. 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 8/187:15 am
BOI
-
ROS
2 stops19h 50m
LATAM Airlines
Fri 8/2112:10 pm
ROS
-
BOI
2 stops29h 51m
LATAM Airlines
Deal found 2/19$1,691

Find flight deals from Oregon to Rosario

Keep the following information in mind while searching for Oregon to Rosario flight deals. Data was last updated February 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,691
(LATAM Airlines)
Provider with most accurate pricing for Portland-Rosario Fisherton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Rosario Fisherton flights.
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From Oregon to Rosario Fisherton
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Oregon 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 20, 2026.
Use the filters below to find and compare flights from Oregon to Rosario that are best for you.

Fly from

Oregon

Fly to

Rosario

Route

Depart

Return

Price

BoiseRosario

BOI - ROS

BOIROS

Boise Air Term. Gowen Fld

Tue 8/18

7:15 am-6:05 am

2 stops19h 50m

Rosario Fisherton

Fri 8/21

12:10 pm-3:01 pm

2 stops29h 51m

$1,691

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Best time to book a flight from Oregon to Rosario

Have a flexible travel schedule? Discover the best time to fly to Rosario from Oregon 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 Oregon to Rosario
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Oregon to Rosario. 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 into for flights to Rosario from Oregon?

    Most people fly into Rosario Fisherton (ROS) if they book a flight to Rosario from Oregon. Fisherton is conveniently located just 6.6 mi from Rosario’s city center.

  • How long is the flight from Oregon to Rosario?

    There are many flights that can get you from Oregon to Rosario in 19h 50m. Fly via LATAM Airlines to get the fastest option. The distance between Oregon and Rosario is about 6330 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oregon 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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