$68 Cheap Flights from Portland (PDX) to Denver (DEN)

View $68 flight on Sat, Sep 13, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Denver Intl. Airport (DEN)

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Cheap Flights from Portland to Denver (PDX-DEN)

Prices were available within the past 7 days and start at $68 for one-way flights and $109 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Oct 21 - Wed, Oct 29
PDX
Portland
DEN
Denver
$109 Roundtrip, found 18 hours ago
$109
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Tue, Oct 21 from Portland to Denver, returning Wed, Oct 29, priced at $109 found 18 hours ago
Frontier Airlines
Thu, Oct 2 - Tue, Oct 21
PDX
Portland
DEN
Denver
$111 Roundtrip, found 4 days ago
$111
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Oct 2 from Portland to Denver, returning Tue, Oct 21, priced at $111 found 4 days ago
Frontier Airlines
Tue, Oct 7 - Sun, Oct 19
PDX
Portland
DEN
Denver
$112 Roundtrip, found 4 days ago
$112
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, Oct 7 from Portland to Denver, returning Sun, Oct 19, priced at $112 found 4 days ago
Frontier Airlines
Thu, Oct 2 - Sun, Oct 19
PDX
Portland
DEN
Denver
$117 Roundtrip, found 4 days ago
$117
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Oct 2 from Portland to Denver, returning Sun, Oct 19, priced at $117 found 4 days ago
Frontier Airlines
Fri, Oct 3 - Tue, Oct 21
PDX
Portland
DEN
Denver
$127 Roundtrip, found 4 days ago
$127
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Fri, Oct 3 from Portland to Denver, returning Tue, Oct 21, priced at $127 found 4 days ago
Frontier Airlines
Tue, Sep 9 - Wed, Sep 17
PDX
Portland
DEN
Denver
$130 Roundtrip, found 18 hours ago
$130
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Tue, Sep 9 from Portland to Denver, returning Wed, Sep 17, priced at $130 found 18 hours ago
United
Tue, Oct 21 - Wed, Oct 29
PDX
Portland
DEN
Denver
$145 Roundtrip, found 18 hours ago
$145
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Oct 21 from Portland to Denver, returning Wed, Oct 29, priced at $145 found 18 hours ago
Alaska Airlines
Wed, Aug 27 - Tue, Sep 2
PDX
Portland
DEN
Denver
$148 Roundtrip, found 2 hours ago
$148
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Wed, Aug 27 from Portland to Denver, returning Tue, Sep 2, priced at $148 found 2 hours ago
Southwest Airlines
Sat, Aug 30 - Tue, Sep 2
PDX
Portland
DEN
Denver
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Aug 30 from Portland to Denver, returning Tue, Sep 2, priced at $157 just found
American Airlines
Sat, Oct 18 - Tue, Oct 21
PDX
Portland
DEN
Denver
$177 Roundtrip, found 2 hours ago
$177
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Oct 18 from Portland to Denver, returning Tue, Oct 21, priced at $177 found 2 hours ago

Find the cheapest month to fly from Portland (PDX) to Denver (DEN)

February is typically the cheapest month to fly

From $48 - $277 per traveler.

Graph displaying average flight prices per month

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $165
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $165
Flights from Portland (PDX) to Denver (DEN)
Origin airport
Portland Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$106
Distance
989 mi
Average flight time
3 hours 32 mins

Portland to Denver Flights

The cheapest times to fly from Portland to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Denver are during the month of October. You can find some of the cheapest flights from Portland to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Denver

Sunday is one of the best days to book for cheap flights from Portland to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $68 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN) cost?
You can score cheap return flights from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN) starting at $110. Grab a seat and take off on your trip. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving PDX on August 19 2025 and touching down at DEN. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from PDX to DEN?
The cheapest flights from PDX to DEN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN)?
Avoid the detours and fly nonstop from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN) with 4 airlines, including:

  • United Airlines
  • Southwest Airlines
  • Frontier Airlines

What is the cheapest airline that flies from PDX to DEN?
With fares starting at $62 for a one-way flight from PDX to DEN, Frontier Airlines is currently the cheapest carrier for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PDX on September 25 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN)?
Each day, an average of 9 direct flights operate from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN). Select the departure time that works for you.
What are the most popular departure times for flights from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN)?
The 12 PM departures from PDX to DEN are typically the busiest. Prices can be higher for these popular slots. If you want to save money, book during off-peak hours.
What day of the week has the most flights from PDX to DEN?
Fly on a Friday if you're searching for the best choice of flights from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN).
What is the earliest flight from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN)?
Portland Intl. Airport (PDX)'s first flight to Denver Intl. Airport (DEN) is at approximately 5:00AM UTC-8. With a total journey time of 2h 32m, you'll arrive at around 8:32AM UTC-7.
How long does it take to fly from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN)?
The average flight duration from PDX to DEN is 2 hours and 31 minutes, covering a total distance of 990 mi.
What airline has the least delays from PDX to DEN?
Sun Country Airlines has the best performance for on-time direct flights from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN), with an on-time score of 100%. Use the Expedia App to look up your flight schedule before you head off and get immediate updates about any trip changes.
What is the best time to fly from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN)?
To avoid possible delays on the Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN) route, aim to travel before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Denver from Portland Intl. Airport (PDX)?
Denver Intl. Airport (DEN) is the only airport in Denver with direct flights from Portland Intl. Airport (PDX). Consider your options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN) last-minute?
Booking your ticket from PDX to DEN just before your journey is generally more expensive. However, if there's some wiggle room with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a PDX to DEN flight and hotel package?
You can save money by booking a PDX to DEN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your ideal flights and accommodations, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN)?
In most instances, you're able to cancel or reschedule your PDX to DEN flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want more details, visit our Customer Service portal.

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