Direct (nonstop) flights from Portland to Denver
4 airlines fly nonstop from Portland International (PDX) to Denver International (DEN). It's 991 miles (1,595 km), about 2h 38m in the air. Operated by Alaska Airlines, Frontier Airlines, United Airlines and others.
Alaska Airlines
Frontier Airlines
United Airlines
Southwest Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
AS
Alaska Airlines
F9
Frontier Airlines
UA
United Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Portland to Denver with one stop · direct emits 167 kg CO₂ per passenger
Looking for the return flight?
DEN → PDX: Flights from Denver to PortlandOther direct flights from Portland
Direct flights from Denver (DEN)
Frequently Asked Questions
How long is the direct flight from Portland to Denver?
A nonstop flight from Portland (PDX) to Denver (DEN) takes approximately 2 hours and 38 minutes. The distance is 991 miles (1,595 km).
Which airlines fly nonstop from Portland to Denver?
4 airlines: Alaska Airlines, Frontier Airlines, United Airlines, Southwest Airlines.
Is there a nonstop flight from Portland to Denver?
Yes. 4 airlines: Alaska Airlines, Frontier Airlines, United Airlines, Southwest Airlines.
How far is Portland from Denver?
The flight distance from Portland to Denver is 991 miles (1,595 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Portland to Denver?
At 2h 38m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Portland to Denver?
Roughly 167 kg CO2 per passenger one-way. That's about the same as driving 835 km.
Is the return flight from Denver to Portland also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Portland to Denver?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Portland International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.