$146 Find Cheap Flights from Portland to Washington Dulles Airport - Compare and Save

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

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

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 Portland to Washington, D.C. Dulles Intl Airport:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $301 round-trip via New York John F Kennedy Intl (JFK), compared to $338 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 Embraer 175 (Enhanced Winglets) 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.

Connecting flights from Portland to Washington, D.C. Dulles Intl Airport most commonly pass through:

• New York John F Kennedy Intl (JFK) - 89% of one-stop connections
• Newark (EWR) - 11% of one-stop connections
Together, these airports account for 100% of one-stop bookings on this route.

Yes. Being flexible with your travel dates can save you up to 53% on the Portland to Washington, D.C. Dulles Intl Airport route. Thursday is the cheapest departure day at $309 round-trip on average, while Sunday is the most expensive at $653, a difference of $344. 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 Portland to Washington, D.C. Dulles Intl Airport flights, with 50% of flights leaving in that window. Afternoon departures account for 25%, evening flights for 25%, and night flights for 0%.

Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

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

• Earliest: departs at 5:15 am and lands at 7:13 am
• Latest: departs at 7:35 pm and lands at 9:33 pm.

The flight takes about 1h 58m.

Last-minute fares on this route - booked within 2 weeks of departure - run 38% above the route average of $337. Book 17 weeks before departure for the lowest fares.

A nonstop flight from Portland to Washington, D.C. Dulles Intl Airport takes 1h 58m, covering 492 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 $277 to $1,451. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Portland to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $180, which is 33% below the typical average for this route.

Flying via New York John F Kennedy Intl (JFK) gives the shortest average 1-stop total travel time at 4h 40m, compared with 5h 14m via Newark (EWR).

Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:
• Dollar
• Budget
• Hertz
• Sixt
• Thrifty

Round-trip flights from Portland to Washington, D.C. Dulles Intl Airport range from $269 to $440, with an average of $337 over the past 12 months. Anything below $269 counts as a good deal.

JetBlue is the only airline on the Portland to Washington, D.C. Dulles Intl Airport route offering in-flight Wi-Fi. Pricing depends on fare class.