$127 Cheap United flights Portland (PWM) to Washington (DCA)

View $127 flight on Wed, Oct 22, 2025Opens in a new window

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$127 Cheap United flights Portland (PWM) to Washington (DCA)

Prices were available within the past 7 days and start at $127 for one-way flights and $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Sep 18 - Tue, Sep 23
PWM
Portland
DCA
Washington
$209 Roundtrip, found 2 hours ago
$209
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Sep 18 from Portland to Washington, returning Tue, Sep 23, priced at $209 found 2 hours ago
United
Fri, Jan 16 - Wed, Jan 21
PWM
Portland
DCA
Washington
$213 Roundtrip, found 3 days ago
$213
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from Portland to Washington, returning Wed, Jan 21, priced at $213 found 3 days ago
United
Fri, Jan 16 - Wed, Jan 21
PWM
Portland
DCA
Washington
$218 Roundtrip, found 3 days ago
$218
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from Portland to Washington, returning Wed, Jan 21, priced at $218 found 3 days ago
United
Sat, Sep 13 - Tue, Sep 16
PWM
Portland
DCA
Washington
$224 Roundtrip, found 19 hours ago
$224
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Sep 13 from Portland to Washington, returning Tue, Sep 16, priced at $224 found 19 hours ago
United
Thu, Feb 26 - Sun, Mar 1
PWM
Portland
DCA
Washington
$239 Roundtrip, found 19 hours ago
$239
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Feb 26 from Portland to Washington, returning Sun, Mar 1, priced at $239 found 19 hours ago
Flights from Portland (PWM) to Washington (DCA)
Origin airport
Portland Intl. Jetport
Destination airport
Ronald Reagan Washington National
Airlines serving
American Airlines, Delta, JetBlue Airways, Southwest Airlines, United
Popular airline
American Airlines
Distance
481 mi
Average flight time
1 hour 49 mins

Frequently asked questions

How much is a United Airlines flight from Portland Intl. Jetport Airport (PWM) to Ronald Reagan Washington National Airport (DCA)?
You can discover cheap round-trip United Airlines flights from $209 from PWM to DCA by organizing your results from "Price (lowest to highest)" on Expedia. Or look for deals from $127 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from PWM to DCA with United Airlines?
January is one of the cheapest months to travel to Washington with United Airlines. You could also find great prices on return and one-way tickets in February.
What is the cheapest time to book flights from Portland Intl. Jetport Airport (PWM) to Ronald Reagan Washington National Airport (DCA) with United Airlines?
To find cheap United Airlines fares from Portland Intl. Jetport Airport (PWM) to Ronald Reagan Washington National Airport (DCA), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the overall price. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Portland Intl. Jetport Airport (PWM) to Ronald Reagan Washington National Airport (DCA)?
To figure out if there's a direct journey from PWM to DCA with United Airlines or any other airlines, select the "Nonstop" filter when looking for tickets.
What is the earliest United Airlines flight from PWM to DCA?
Browse United Airlines's earliest flights from PWM to DCA by checking our "Morning" and "Early Morning" filters. Not only will you get to where you're going sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Washington?
United Airlines flights from Portland Intl. Jetport Airport (PWM) to Washington come in to land at Ronald Reagan Washington National Airport (DCA). This is the main gateway to this city.
Why fly with United Airlines from PWM to DCA?
Offering a rewarding loyalty program, United Airlines is a popular choice for many travelers journeying from PWM to DCA. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Portland Intl. Jetport Airport (PWM) to Ronald Reagan Washington National Airport (DCA)?
Changes are usually free within 24 hours of making your booking, but your airline may charge a fee after that time. For more details about altering your flights, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to make changes without additional charges, tick the "Changes included" and "No cancel fee" filters when organizing your next adventure.

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