Cheap Flights from Portland to Denver from US$52

Frequently Asked Questions

• What are the cheapest flights from Portland to Denver (PDX-DEN)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$52 on Cheapest nonstop routes (e.g. PDX to DEN on Sat, Sep 5), while Frontier Airlines offers Cheapest nonstop round-trips from US$126 departing on Thu, Oct 22 and returning on Sun, Oct 25.

• Which airlines offer direct flights from Portland to Denver?

  At the moment, you can catch a nonstop flight from Portland to Denver with the following airlines, including: Frontier Airlines Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Portland to Denver?

  It takes about 2 hours 55 minutes to fly from Portland to Denver.

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

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to Denver 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 many flights are there per week from Portland to Denver?

  Based on Trip.com data in the past 4 weeks, there is 61 flight per week flying from Portland to Denver. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS684 (07:39)

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

  To find best deals on flights from Portland to Denver, 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 Sat, Sep 5, with one-way flights priced at just US$52.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier 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 Denver travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Portland (PDX) to Denver (DEN) the cheapest?

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

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

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Portland to Denver on September 11, 2026 with Frontier Airlines, with prices starting at US$127.

• Which airports fly into Denver from Portland?

  You can land at any one of the following hubs in Denver: Rocky Mountain Metropolitan Airport (BJC), and Denver International Airport (DEN). Flying from Portland International Airport to Denver International Airport (PDX-DEN) is by far the most common option on this route.

• Is there any time difference between Portland and Denver?

  The time difference between Denver and Portland is 1h.

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

  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.

• What is the average cost of a one-way flight from Portland to Denver?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Portland to Denver is US$168. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Portland to Denver?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Portland to Denver is US$278. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Portland to Denver on Trip.com?

  Enter Portland and Denver, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the Portland to Denver route?

  Frontier Airlinesare the most popular budget airlines flying from Portland to Denver. Check baggage, seat and payment fees before comparing the final price.