Cheap Flights from Rock Springs to Portland from US$234

Frequently Asked Questions

• What are the cheapest flights from Rock Springs to Portland (RKS-PDX)?

  Based on Trip.com data, United Airlines offers one-way fares as low as US$234 on Cheapest nonstop routes (e.g. RKS to PDX on Wed, Jan 14), while United Airlines offers Cheapest nonstop round-trips from US$298 departing on Thu, Jan 22 and returning on Thu, Jan 29.

• When is the best time to book flights from Rock Springs to Portland?

  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.

• How can I find the best deals on flights from Rock Springs to Portland?

  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 US$234.
  · 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.

• When are flight tickets from Rock Springs (RKS) to Portland (PDX) the cheapest?

  The cheapest months to fly from Rock Springs to Portland is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Rock Springs to Portland on?

  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 US$328.

• Is there any time difference between Rock Springs and Portland?

  The time difference between Portland and Rock Springs is 1h.

• How do I change or cancel my ticket from Rock Springs to Portland?

  Tickets can only be changed or canceled 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.