PDX - RKS

$388 Find Cheap Flights from Portland to Rock Springs - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$388
Typical prices: $383-$393
United Airlines
Tue 1/30Fri 2/2
PDX - RKS • 1 stop
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Flight Deals

Cheap Flights from Portland to Rock Springs (PDX-RKS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Rock Springs

Sat, Jan 30 - Tue, Feb 2
United Airlines Logo
5:15 am - 1:30 pmPDX  Portland-RKS Rock Springs Sweetwater County
7h 15m1 stop Denver Intl
United Airlines Logo
5:25 am - 9:40 amRKS  Rock Springs Sweetwater County-PDX Portland
5h 15m1 stop Denver Intl
$388United Airlines
Sat, Jan 30 - Mon, Feb 1
United Airlines Logo
12:40 pm - 10:01 pmPDX  Portland-RKS Rock Springs Sweetwater County
8h 21m1 stop Denver Intl
United Airlines Logo
5:25 am - 9:40 amRKS  Rock Springs Sweetwater County-PDX Portland
5h 15m1 stop Denver Intl
$388United Airlines
Sat, Jan 30 - Mon, Feb 1
United Airlines Logo
7:30 am - 10:01 pmPDX  Portland-RKS Rock Springs Sweetwater County
13h 31m2 stops San Francisco Denver Intl
United Airlines Logo
2:05 pm - 8:49 pmRKS  Rock Springs Sweetwater County-PDX Portland
7h 44m1 stop Denver Intl
$394United Airlines
Sat, Jan 30 - Tue, Feb 2
United Airlines Logo
4:05 pm - 10:01 pmPDX  Portland-RKS Rock Springs Sweetwater County
4h 56m1 stop Denver Intl
United Airlines Logo
5:25 am - 6:31 pmRKS  Rock Springs Sweetwater County-PDX Portland
14h 06m2 stops Denver Intl San Francisco
$394United Airlines
Sat, Jan 30 - Tue, Feb 2
United Airlines Logo
7:30 am - 10:01 pmPDX  Portland-RKS Rock Springs Sweetwater County
13h 31m2 stops San Francisco Denver Intl
United Airlines Logo
5:25 am - 8:33 pmRKS  Rock Springs Sweetwater County-PDX Portland
16h 08m2 stops Denver Intl San Francisco
$399United Airlines
Booking Insights

Price, demand and travel trends for Portland to Rock Springs flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Portland to Rock Springs with more confidence.

How much is a round-trip flight from Portland to Rock Springs?

Round-trip flights from Portland to Rock Springs start at $388. Prices are typical for this route right now, with typical round-trip fares ranging from $383 to $393. The lowest price found in the past 5 days was $388 on United Airlines.

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Key details for Portland to Rock Springs flights

Cheapest flight

$388
Flight from Portland to Rock Springs

When to book flights from Portland to Rock Springs

Are your dates flexible? Find out the best times to travel from Portland to Rock Springs based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Portland to Rock Springs flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Portland to Rock Springs?

    Flights from Portland to Rock Springs usually depart from Portland (PDX) and arrive at Rock Springs Sweetwater County (RKS).

  • What cabin classes can I book on flights from Portland to Rock Springs?

    Only Economy Class is available on flights from Portland to Rock Springs.

  • Which airports do connecting flights from Portland to Rock Springs pass through?

    Most connecting flights from Portland to Rock Springs pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

  • Can I save money by using flexible dates for flights from Portland to Rock Springs?

    Yes. Being flexible with your travel dates can save you up to 54% on the Portland to Rock Springs route. Wednesday is the cheapest departure day at $388 round-trip on average, while Monday is the most expensive at $843, a difference of $455. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • Do I need a passport to fly from Portland to Rock Springs?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Portland to Rock Springs changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $388 to $527. That means the highest observed fare was about 35% higher than the lowest one.

  • What is the time difference between Portland and Rock Springs?

    Rock Springs is 1 hour ahead of Portland (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • How much should I expect to pay for a Portland to Rock Springs flight?

    Round-trip flights from Portland to Rock Springs range from $383 to $393, with an average of $388 over the past 12 months. Anything below $383 counts as a good deal.

Your guide to booking Portland to Rock Springs flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Monday. On this route, Wednesday flights average $388 - about $455 less than Monday (54% savings) based on the last 12 months.

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

Information on your arrival and departure airports

Portland (PDX)
Rock Springs (RKS)