Cheap flights from Portland to Denver

One-way fares from $158 · PDX → DEN · prices found by travellers in the last 48 hours

Compare all dates Denver → Portland
Cheapest fare
$158

Frontier Airlines · Mon, Nov 16

Cheapest month
November

from $158

Direct flights
Not recently

Usually 1+ stop

Quickest trip
5h 02m

1,580 km

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Cheapest month to fly from Portland to Denver

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $158

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart11:06 Mon, Nov 16PDX → DEN 5h 02m · 1 stop
$158one way, per person
View deal
Frontier Airlines
Depart11:06 Thu, Nov 12PDX → DEN 5h 02m · 1 stop
$174one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Denver

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in DenverCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in DenverTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in DenverPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in DenverCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Portland to Denver

Portland (PDX) and Denver (DEN) are about 1,580 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 5h 02m. Over the next few months, one-way fares start from $158, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Portland to Denver?

The cheapest one-way fare we've seen recently is $158 with Frontier Airlines, departing Monday, November 16, 2026.

What is the cheapest month to fly from Portland to Denver?

November 2026 currently has the lowest fares, from $158 one way.

Are there direct flights from Portland to Denver?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Portland to Denver?

The quickest journey we've seen takes about 5h 02m. Portland and Denver are around 1,580 km apart.

Which airlines fly from Portland to Denver?

Recent fares on this route were with Frontier Airlines.

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