$165 Find Cheap Flights from Denver to Portland - Compare and Save

Southwest, American, and Alaska Airlines allow small, vaccinated dogs and cats to travel in-cabin with their owners. They have specific requirements regarding pet carriers, restrictions on the number of pets allowed, and pet documentation. Their policies and fees vary depending on the size and type of pet. United Airlines allows pets to travel both in-cabin and as cargo. For pets traveling as cargo, United offers a program called PetSafe, designed to ensure the well-being and safety of the pets in transit.

Denver International Airport (DEN) and Portland International Airport (PDX) have measures in place to support passengers with reduced mobility. Including accessible parking, ramps, elevator, and accessible restrooms. Wheelchair assistance is available upon request and airport staff provide guidance. Many airlines like Southwest and United Airlines offer accessible seating options with extra legroom, aisle seats with proximity to lavatories, and boarding assistance equipment to facilitate the boarding and disembarkation process.

United Airlines provide options for upgrading like upgrade programs such as MileagePlus upgrades and paid upgrades which allow passengers to upgrade their ticket class for a fee or using frequent flyer miles. American Airlines have programs like "Upgrade with Miles" and "Systemwide Upgrades" that allow eligible passengers to upgrade their booking.

Southwest Airlines allows passengers to bring one personal item and a carry-on bag for free. Their carry-on size limit is generous allowing bigger bags. This policy can be beneficial if you prefer to have more flexibility with your carry-on items. United Airlines allows passengers to bring one personal item and one carry-on bag whose restrictions are standard. For any additional bag carried an extra cost is incurred.

Among airlines operating Denver to Portland flights:

• United Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only United Airlines operates flights between Denver and Portland.

Flights from Denver to Portland usually depart from Denver Intl (DEN) and arrive at Portland (PWM).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Denver to Portland:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $395 round-trip via New York John F Kennedy Intl (JFK), compared to $597 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737 MAX 9 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

One-stop flights from Denver to Portland most commonly connect through:

• Baltimore/Washington (BWI) - 33% of one-stop connections
• Charlotte Douglas (CLT) - 15% of one-stop connections
• Chicago O'Hare Intl (ORD) - 11% of one-stop connections
• Philadelphia (PHL) - 10% of one-stop connections

Baltimore/Washington (BWI) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 25% on the Denver to Portland route. Thursday is the cheapest departure day at $474 round-trip on average, while Sunday is the most expensive at $629, a difference of $155. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Denver to Portland flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

These are the earliest and latest flight times available from Denver to Portland:

• Earliest: departs at 9:53 am and lands at 1:48 pm
• Latest: departs at 10:11 am and lands at 2:06 pm.

The flight takes about 3h 55m.

Last-minute fares on this route - booked within 2 weeks of departure - run 14% above the route average of $511. Book 22 weeks before departure for the lowest fares.

A nonstop flight from Denver to Portland takes 3h 55m, covering 1,776 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $388 to $2,961. That means the highest observed fare was about 8x higher than the lowest one.

One-way fares from Denver to Portland are currently lower than usual. Average one-way flight prices are about $205, which is 33% below the typical average for this route.

Flying via Washington, D.C. Dulles Intl (IAD) gives the shortest average 1-stop total travel time at 6h 49m, compared with 6h 56m via Chicago Midway (MDW) and 6h 59m via Chicago O'Hare Intl (ORD).

Portland is 2 hours ahead of Denver (Eastern Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

Portland Airport (PWM) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:
• Dollar
• Budget
• Alamo
• Hertz
• Movly

Round-trip flights from Denver to Portland range from $393 to $641, with an average of $511 over the past 12 months. Anything below $393 counts as a good deal.