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Flights from Rock Springs to Portland

Find the cheapest flight options from Rock Springs to Portland over the next three months. Book one-way tickets from €201 and round-trip tickets from €256.

      • RKS 05:15
        5h 30m
        1 stop
        PDX 09:45
        Rock Springs - Portland | Thu, Jan 22 | United Airlines
        PDX 05:00
        7h 28m
        1 stop
        RKS 13:28
        Portland - Rock Springs | Thu, Jan 29 | United Airlines
        €256 €617
        59% OFF
        59% OFF
        €617 €256
      • RKS 05:15
        5h 23m
        1 stop
        PDX 09:38
        Rock Springs - Portland | Wed, Dec 10 | United Airlines
        PDX 16:02
        4h 57m
        1 stop
        RKS 21:59
        Portland - Rock Springs | Sun, Dec 14 | United Airlines
        €283 €617
        54% OFF
        54% OFF
        €617 €283
      • RKS 05:15
        9h 22m
        1 stop
        PDX 13:37
        Rock Springs - Portland | Tue, Dec 16 | United Airlines
        PDX 12:54
        8h 5m
        1 stop
        RKS 21:59
        Portland - Rock Springs | Sat, Dec 20 | United Airlines
        €417 €617
        32% OFF
        32% OFF
        €617 €417
      • RKS 14:18
        9h 41m
        1 stop
        PDX 22:59
        Rock Springs - Portland | Thu, Dec 18 | United Airlines
        PDX 05:00
        7h 28m
        1 stop
        RKS 13:28
        Portland - Rock Springs | Mon, Dec 22 | United Airlines
        €470
        24% OFF
        €617 €470
      • RKS 05:15
        5h 46m
        1 stop
        PDX 10:01
        Rock Springs - Portland | Wed, Dec 24 | United Airlines
        PDX 12:54
        8h 5m
        1 stop
        RKS 21:59
        Portland - Rock Springs | Sun, Dec 28 | United Airlines
        €494
        20% OFF
        €617 €494
      • RKS 05:15
        5h 46m
        1 stop
        PDX 10:01
        Rock Springs - Portland | Sun, Dec 21 | United Airlines
        PDX 05:00
        7h 28m
        1 stop
        RKS 13:28
        Portland - Rock Springs | Thu, Dec 25 | United Airlines
        €550
        11% OFF
        €617 €550
      • RKS 13:00
        17h 25m
        1 stop
        PDX Invalid Date
        Rock Springs - Portland | Fri, Dec 12 | Normal Airline
        PDX 15:00
        6h
        Direct
        RKS 16:00
        Portland - Rock Springs | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights

Displayed flight fares from Rock Springs to Portland are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Rock Springs to Portland

The distance between Rock Springs and Portland is 1,174.93km. Based on Trip.com's data, travel demand peaks in September. The off-season for travel is November.

Cheapest one-way flight price€201
Cheapest return ticket price€256
Off-season travel monthNovember
Peak season for travelSeptember
Flight distance1,174.93km

Find the best time to fly from Rock Springs to Portland

The cheapest time for Rock Springs to Portland flights: Jan 11 to Jan 18 — one way flight prices from €201.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Rock Springs to Portland, calculated over the upcoming 10 weeks.

Flight FAQs

  • Which airlines offer the cheapest flights from Rock Springs (RKS) to Portland (PDX)?

    Based on Trip.com data, United Airlines offers one-way fares as low as €201 on Cheapest nonstop routes (e.g. RKS to PDX on Wed, Jan 14), while United Airlines offers Cheapest nonstop round-trips from €256 departing on Thu, Jan 22 and returning on Thu, Jan 29.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Rock Springs to Portland is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Rock Springs to Portland, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Jan 14, with one-way flights priced at just €201.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Portland travel is around September.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Rock Springs to Portland is November, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Rock Springs to Portland on December 10, 2025 with United Airlines, with prices starting at €282.
  • The time difference between Portland and Rock Springs is 1h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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