$51 Cheap Flights from Portland (PDX) to Denver (DEN)

View $51 flight on Tue, Nov 4, 2025Opens in a new window

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

Cheap Flights from Portland to Denver (PDX-DEN)

Prices were available within the past 7 days and start at $51 for one-way flights and $100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Oct 25 - Tue, Oct 28
PDX
Portland
DEN
Denver
$100 Roundtrip, just found
$100
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Oct 25 from Portland to Denver, returning Tue, Oct 28, priced at $100 just found
Frontier Airlines
Sat, Nov 8 - Sat, Nov 15
PDX
Portland
DEN
Denver
$102 Roundtrip, found 1 hour ago
$102
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Nov 8 from Portland to Denver, returning Sat, Nov 15, priced at $102 found 1 hour ago
Frontier Airlines
Thu, Oct 23 - Tue, Oct 28
PDX
Portland
DEN
Denver
$112 Roundtrip, just found
$112
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 23 from Portland to Denver, returning Tue, Oct 28, priced at $112 just found
Frontier Airlines
Fri, Oct 31 - Sat, Nov 8
PDX
Portland
DEN
Denver
$113 Roundtrip, found 1 hour ago
$113
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Oct 31 from Portland to Denver, returning Sat, Nov 8, priced at $113 found 1 hour ago
Frontier Airlines
Sat, Nov 8 - Mon, Nov 10
PDX
Portland
DEN
Denver
$115 Roundtrip, just found
$115
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Nov 8 from Portland to Denver, returning Mon, Nov 10, priced at $115 just found
Frontier Airlines
Sat, Oct 11 - Tue, Oct 21
PDX
Portland
DEN
Denver
$117 Roundtrip, found 22 hours ago
$117
Roundtrip
found 22 hours ago
Select Frontier Airlines flight, departing Sat, Oct 11 from Portland to Denver, returning Tue, Oct 21, priced at $117 found 22 hours ago
Southwest Airlines
Sat, Oct 25 - Tue, Oct 28
PDX
Portland
DEN
Denver
$130 Roundtrip, just found
$130
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Oct 25 from Portland to Denver, returning Tue, Oct 28, priced at $130 just found
Alaska Airlines
Sat, Nov 1 - Sat, Nov 8
PDX
Portland
DEN
Denver
$139 Roundtrip, just found
$139
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Nov 1 from Portland to Denver, returning Sat, Nov 8, priced at $139 just found
American Airlines
Sat, Oct 25 - Tue, Oct 28
PDX
Portland
DEN
Denver
$177 Roundtrip, just found
$177
Roundtrip
just found
Select American Airlines flight, departing Sat, Oct 25 from Portland to Denver, returning Tue, Oct 28, priced at $177 just found
Sun Country Airlines
Tue, Nov 25 - Mon, Dec 1
PDX
Portland
DEN
Denver
$343 Roundtrip, just found
$343
Roundtrip
just found
Select Sun Country Airlines flight, departing Tue, Nov 25 from Portland to Denver, returning Mon, Dec 1, priced at $343 just found

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.

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 $208
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $208

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN) cost?
Snag a cheap one-way flight from $51 or cheap return flight from $100 from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN)?
The cheapest month to fly from PDX to DEN is October, when there's less demand. Off-peak season is often when airlines offer lower prices between these airports.
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 Portland Intl. Airport (PDX) to Denver Intl. Airport (DEN)?
The cheapest airline to offer flights between Portland Intl. Airport (PDX) and Denver Intl. Airport (DEN) can change depending on your travel plans. Alaska Airlines and Frontier Airlines are just some of the choices offering reasonable prices. Use Expedia's filters to compare airlines in one place and find the right PDX to DEN flight that fits your budget.
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.

Travel information

Travel information

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
$100
Distance
989 mi
Average flight time
3 hours 27 mins

Book with confidence

Book with confidence

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 $51 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.

 

Portland to Denver Flights

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Explore a world of travel with Expedia

*Available to One Key members.