The observed direct connection between Portland International Airport (PDX) and Denver International Airport (DEN) covers approximately 989 mi. The estimated flight time is around 2h 30m. Alaska Airlines, Delta Air Lines, Frontier Airlines, SkyWest Airlines, Southwest Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
How far is Portland from Denver by air?
The great-circle distance between Portland International Airport and Denver International Airport is approximately 989 mi.
How long is the flight from Portland to Denver?
Based on the distance, the estimated flight time is about 2h 30m. This is an estimate, not a schedule.
Is there a direct connection from Portland to Denver?
Yes, a direct connection between PDX and DEN has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Alaska Airlines, Delta Air Lines, Frontier Airlines, SkyWest Airlines, Southwest Airlines and United Airlines.
How often is there a flight from Portland to Denver?
On average around 11.5 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 3,897 observed flights. Mainly United Airlines, Southwest Airlines, Alaska Airlines. That is an observation, not a timetable.
What is the current time difference between Portland and Denver?
Denver is currently 1 hour ahead of Portland.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.