Cheap Flights from Portland (PDX) to Boulder (WBU)

Popular airlines from Portland International Airport (PDX) to Boulder, CO (WBU-Boulder Municipal)

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Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Boulder, CO (WBU-Boulder Municipal) cost?
Secure a cheap one-way flight or cheap return flight from Portland Intl. Airport (PDX) to Boulder, CO (WBU-Boulder Municipal) 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 Boulder, CO (WBU-Boulder Municipal)?
is the cheapest month to fly from PDX to WBU. Timing your trip outside of the busy season is often the key to landing a great deal.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Boulder, CO (WBU-Boulder Municipal)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest PDX to WBU flight.
How many flights per day from Portland Intl. Airport (PDX) to Boulder, CO (WBU-Boulder Municipal)?
Direct flights from Portland Intl. Airport (PDX) to Boulder, CO (WBU-Boulder Municipal) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PDX to WBU?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Boulder, CO (WBU-Boulder Municipal)?
To avoid possible delays on the Portland Intl. Airport (PDX) to Boulder, CO (WBU-Boulder Municipal) route, travel before 3 PM. Departures after this hour 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 Boulder from Portland Intl. Airport (PDX)?
If you're boarding a direct flight from Portland Intl. Airport (PDX) to Boulder, Denver Intl. Airport (DEN) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Boulder, CO (WBU-Boulder Municipal) last-minute?
Booking your flight from PDX to WBU 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 WBU flight and hotel package?
Opting for a PDX to WBU flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Choose from our impressive range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Boulder, CO (WBU-Boulder Municipal)?
In most instances, you can reschedule or cancel your PDX to WBU flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like more details, go to our Customer Service portal.

Travel information

Origin airport
Portland Intl.
Destination airport
Boulder Municipal
Distance
957 mi

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Portland to Boulder Flights

The cheapest times to fly from Portland to Boulder

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 Boulder are during the month of . You can find some of the cheapest flights from Portland to Boulder with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Boulder

Sunday is one of the best days to book for cheap flights from Portland to Boulder: 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 Boulder

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 Boulder in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Boulder 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 Boulder 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 Boulder Flights

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*Available to One Key members.