There are most likely no direct flights on the Portland — Denver route
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A non-stop flight is the most convenient and comfortable way to fly from Portland to Denver, despite the fact that sometimes flights with transfers can cost significantly less.
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There are most likely no direct flights on the Portland — Denver route
Portland — Denver
09/09/2026
Departure
Direct flight
UA459
starting at $273
Portland — Denver
09/11/2026
Departure
Direct flight
AS6849
starting at $132
Portland — Denver
09/12/2026
Departure
Direct flight
WN4156
starting at $230
Portland — Denver
09/13/2026
Departure
Direct flight
UA1411
starting at $397
starting at $273
starting at $132
starting at $230
starting at $135
The route Portland — Denver is served by many carriers — 4 in total, including United Airlines, Alaska Airlines, Southwest Airlines, and Frontier Airlines. This gives passengers wide opportunities: from finding the lowest fare (from $132) to selecting flights by schedule or service class. Our service aggregates data from multiple booking systems so you can compare offers in one place. This saves time and money: no need to check dozens of sites — just pick the right option and book online.
The cheapest one-way flight from Portland to Denver departs on 09/11/2026, is operated by Alaska Airlines and costs $132
The cheapest roundtrip flight from Portland to Denver departs on 10/26/2026, is operated by Frontier Airlines and costs $243
Fastest flight from Portland to Denver takes 2h 48m
There are direct flights on this route 4 days a week: Su, We, Fr, and Sa
The distance between Portland and Denver is 1578km (978 miles). There are 110 direct flights from Portland to Denver. The time difference between Portland and Denver is 1h. Flights from Portland begin at 5:00 AM. The latest flight from Portland departs at 8:00 PM
The cheapest flight ticket from Portland to Denver according to data for the last 48 hours costs $132
Often the best time to buy tickets from Portland to Denver is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Portland to Denver can be found flying in these months: September, August.
The fastest flights from Portland to Denver start from 2 hours 48 minutes in the air.
The following airlines operate direct flights on the route Portland — Denver: United Airlines, Alaska Airlines, Southwest Airlines
In different months, ticket prices from Portland to Denver vary: minimum — $73 (September 2026), maximum — $157 (August 2026). Typically, the flight costs $115–$157.
We couldn't find any special offers for flights from Portland to Denver