$193 Find Cheap Flights from Washington Dulles Airport to Portland - Compare and Save

Among airlines operating Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport and Portland.

Flights from Washington, D.C. Dulles Intl Airport to Portland usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Portland (PDX).

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

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

Three cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Portland:

• Economy Class
• Premium Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $314 round-trip via Las Vegas Harry Reid Intl (LAS), compared to $482 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 737-800 Passenger/BBJ2 (winglets) variants.

One-stop flights from Washington, D.C. Dulles Intl Airport to Portland most commonly connect through:

• Seattle/Tacoma Intl (SEA) - 40% of one-stop connections
• Chicago O'Hare Intl (ORD) - 15% of one-stop connections
• Denver Intl (DEN) - 13% of one-stop connections
• Dallas/Fort Worth (DFW) - 8% of one-stop connections

Seattle/Tacoma Intl (SEA) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 21% on the Washington, D.C. Dulles Intl Airport to Portland route. Wednesday is the cheapest departure day at $439 round-trip on average, while Sunday is the most expensive at $549, a difference of $110. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Evening is the busiest departure period on Washington, D.C. Dulles Intl Airport to Portland flights, with 100% of flights leaving in that window. Morning departures account for 0%, afternoon flights for 0%, and night flights for 0%.

Some of the most popular sights in Portland are Moda Center, Oregon Convention Center and OHSU Center for Health and Healing. These are among the most viewed places in Portland on KAYAK.

These are the earliest and latest flight times available from Washington, D.C. Dulles Intl Airport to Portland:

• Earliest: departs at 5:19 pm and lands at 11:07 pm
• Latest: departs at 5:33 pm and lands at 11:21 pm.

The flight takes about 5h 48m.

Last-minute fares on this route - booked within 2 weeks of departure - run 72% above the route average of $478. Book 20 weeks before departure for the lowest fares.

A nonstop flight from Washington, D.C. Dulles Intl Airport to Portland takes 5h 48m, covering 2,320 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 $313 to $2,354. That means the highest observed fare was about 8x higher than the lowest one.

One-way fares from Washington, D.C. Dulles Intl Airport to Portland are currently lower than usual. Average one-way flight prices are about $228, which is 23% below the typical average for this route.

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 7h 28m, compared with 7h 32m via Denver Intl (DEN) and 7h 36m via Salt Lake City (SLC).

Portland is 3 hours behind Washington, D.C. Dulles Intl Airport (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Portland Airport (PDX) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:
• Thrifty
• Dollar
• Hertz
• Sixt
• Payless

Round-trip flights from Washington, D.C. Dulles Intl Airport to Portland range from $380 to $598, with an average of $478 over the past 12 months. Anything below $380 counts as a good deal.