Cheap flights from Portland to Denver

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Flight deals from Portland to Denver

Looking for a cheap last-minute deal or the best return flight from Portland to Denver? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Portland to Denver

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Denver flights are currently cheapest in April.

Direct flights from Portland to Denver

Portland to Denver: Flight information

The things to know before you go.
Cheapest flight found$29
Cheapest month to flyMay
Average flight time2 hrs, 33 mins
Most popular airlineSouthwest Airlines
Average flights per week121

Finding cheap flights from Portland to Denver: Frequently asked questions

There are 4 airports in Denver: Denver Arapahoe Co, Broomfield, Denver International, and Northern Colorado Regional.
The best price we found for a return flight from Portland to Denver is $64. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 33 minutes is the average flight time from Portland to Denver.
Southwest Airlines, Alaska Airlines and United fly direct from Portland to Denver.
As of February 2026, there are 121 flights per week flying from Portland to Denver.
The cheapest month to fly from Portland to Denver is usually April.
If you're flying from Portland Airport, the cheapest airport near Denver is Denver International – which is 29.9 km away from the centre of Denver. We've found flights into this airport from $64.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Denver on Saturday, 18 April 2026.
Yes – the average flight time is 2 hours and 33 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Denver but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around 0°C. July is typically the warmest month in Denver, when it usually averages around 31°C. You can expect the least rain in January. The coldest month is December, with temperatures averaging -6°C. The rainiest month is July.
Currently, Frontier Airlines offers the cheapest flight tickets to Denver.

Travelling from Portland International Airport (PDX) to Denver: what you need to know

  • Book a direct flight from Portland International Airport to Denver and you'll be travelling for an average of 2 hours 45 minutes.

  • Portland International Airport is located in Portland. Based in the UTC-6 timezone, Denver is one hour ahead of Portland.

  • The busiest route is from Portland International Airport (PDX) to Denver International Airport (DEN). There are 73 services every week between these two airports. If you want to get on your way as soon as you can, the earliest flight from PDX to DEN is the 05:00 United Airlines service. If you prefer travelling later, the final departure is at 21:35 with Alaska Airlines.

  • To avoid rushing for your PDX to Denver flight, allow plenty of time to navigate the airport and find your gate. Arriving two hours before international departures and an hour before domestic flights is the general travel rule.

  • Longer lines at security and check-in are likely if you're jetting off during high season, so give yourself some extra wiggle room. A good rule for peak times? Arrive up to four hours early for international flights and at least two hours for domestic departures.

  • Begin your journey at PDX and travel nonstop to Denver International Airport (DEN). That's where you can expect to touch down when searching for Portland International Airport to Denver tickets.

  • Popular carriers that operate direct flights from Portland International Airport to Denver include:

  • Travelling from central Portland to PDX takes around 45 minutes on public transport. If you drive, ride-share or grab a cab, you'll cover the 10 kilometres in 20 minutes or so, depending on traffic.

  • Want a stress-free start to your journey? Stay near PDX. Whether you've booked an early flight from Portland International Airport to Denver or just don't like being rushed, these hotels are worth a look:

  • 83.65% of flights departing from Portland International Airport touch down at their destination on schedule. With its solid on-time performance, you're unlikely to be delayed when jetting out of PDX.

  • You'll find PDX at 7000 NE Airport Way.

How to find the cheapest flights from Portland International Airport (PDX) to Denver

  • The lowest price we've seen for a one-way Portland International Airport to Denver flight is $29. The cheapest price for a return flight is $64. Remember fares may change due to demand at the time of booking.

  • Book one month before you travel. Pricing trends show that this is the ideal window for finding cheap flights from PDX to Denver.

  • May is the best month for scoring an incredible deal on Portland International Airport to Denver tickets. If you want to travel during a different time of year, the 'Whole month' tool will show you the lowest prices for each month.

  • Finding a cheap flight from PDX to Denver couldn't be easier with Price Alerts. All you need to do is create one of these automatic notifications and we'll notify you when a new discount appears.

  • Snag an affordable flight from Portland International Airport to Denver with the help of our filters. Select your preferred times, number of stops and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Denver

Denver International Airport (DEN)

  • Denver International Airport (DEN) is around 40 kilometres from central Denver. If you're opting for a ride-share or a cab, the drive takes about 35 minutes.

  • Getting to the centre on public transport will take you around 1 hour 30 minutes.

  • Hop off your flight from Portland International Airport to Denver and be sprawled out in your hotel bed shortly after. If you want a convenient option that's not too far from DEN, consider Baymont by Wyndham Denver International Airport.

  • Pick up a Denver International Airport rental car and explore Denver and beyond with your own set of wheels. Routes Car Rentals, Dollar and Budget are popular providers you can book with here.

  • Reserving your ride from Denver International Airport around one week in advance of your flight from PDX to Denver can help you get the lowest rate.

  • The address for DEN is 8500 Pena Boulevard.

Best time to go to Denver

  • Carefully consider your trip dates before securing your flight from Portland International Airport to Denver. The city buzzes in peak season, but hotel rates are generally higher and attractions can get crowded. Plan your trip to Denver in the low season if you prefer a more relaxed vibe.

  • The warmest month in Denver is July, with temperatures ranging between 14ºC (57ºF) and 32ºC (90ºF). Lock in your Portland International Airport to Denver plane ticket then if that's your idea of comfortable weather.

  • January sees average temperatures of between -9ºC (16ºF) and 7ºC (45ºF). Search for a cheap ticket from PDX to Denver around that time if you like travelling in cooler conditions.

More about Denver

Explore more of United States

  • You've seen Denver, now it's time to explore other parts of United States. Journey about 105 kilometres south to Colorado Springs to tick off its popular sights. From US Northern Command (USNORTHCOM) / North American Aerospace Defence Command (NORAD) Headquarters to Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA), there's plenty to keep you on the go.

  • Around 161 kilometres south of Denver, Pueblo is another favourite stop in United States. Experience the best of this destination with a visit to Pueblo Weisbrod Aircraft Museum, Rosemount Museum and Pueblo Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.