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Rock Springs

$294+ Cheap flights from Portland to Rock Springs (PDX - RKS)

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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — RKS
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Find flight deals from Portland to Rock Springs

One-way flights from Portland to Rock Springs
Search for one-way flight options from Portland to Rock Springs. Find affordable one-way fares based on user searches. Data last updated August 20, 2025.

This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:00 amPDX - RKS
1 stop7h 23mUnited Airlines
Deal found 8/18$294

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Rock Springs 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 20, 2025.
Use the filters below to find and compare flights from Portland to Rock Springs that are best for you.

Fly from

Portland

Fly to

Rock Springs

Route

Depart

Return

Price

PortlandRock Springs

PDX - RKS

PDXRKS

Portland

Mon 9/29

5:00 am-1:23 pm

1 stop7h 23m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Portland to Rock Springs

Have a flexible travel schedule? Discover the best time to fly to Rock Springs 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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Rock Springs

What is the cheapest time of day to fly from PDX to RKS?

Find hourly flight availability from Portland to Rock Springs. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Rock Springs as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Portland to Rock Springs. 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 Rock Springs that include hotel bookings?

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

  • How can I find direct flights from Portland to Rock Springs?

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

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

    Yes. Cheapflights offers flight deals from Portland to Rock Springs 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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