Direct flights from Portland to Denver PDX → DEN
Alaska Airlines, Frontier Airlines, Southwest Airlines and United Airlines operate nonstop flights from Portland (PDX) to Denver (DEN). The nonstop flight takes around ~1h 59m, covering 989 miles (1,592 km). Updated 28 June 2026.
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Alaska Airlines
AS
Frontier Airlines
F9
Southwest Airlines
WN
United Airlines
UA
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Frequently asked questions
Is there a direct flight from Portland to Denver?
Yes, Alaska Airlines, Frontier Airlines and 2 more airlines operate nonstop flights from Portland (PDX) to Denver (DEN).
Which airlines fly direct from Portland to Denver?
Alaska Airlines, Frontier Airlines, Southwest Airlines, United Airlines operate nonstop flights from Portland to Denver.
How long is the flight from Portland to Denver?
The nonstop flight from Portland to Denver takes ~1h 59m (approximately 1592 km).