$119 Cheap Delta flights Portland (PWM) to Washington (DCA)

Finding cheap one-way Delta Air Lines flights from PWM to DCA from $119 on Expedia is easy — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $189 for your next exciting adventure.**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.

Delta Air Lines flights to Washington are typically cheaper in the quieter months of January and February. Whether you’re searching for a round-trip or one-way ticket, you could find a better deal then.

Look for cheap Delta Air Lines flights from Portland Intl. Jetport Airport (PWM) to Ronald Reagan Washington National Airport (DCA) one to three months before your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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.

Simply enter your dates, press search and check the “Nonstop” filter on Expedia to browse any direct flights from PWM to DCA with Delta Air Lines or another carrier.

Sort your results by “Early Morning” and “Morning” to see the earliest departures from PWM to DCA. Setting off early means you’re less likely to experience cancellations.**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.

Ronald Reagan Washington National Airport (DCA) is the main Washington gateway for Delta Air Lines flights from Portland Intl. Jetport Airport (PWM).

Delta Air Lines makes traveling from PWM to DCA more comfortable with a rewarding loyalty program and an excellent in-flight experience. You may even earn points with Delta SkyMiles. Don’t forget to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of fare you purchased, a fee typically applies if you cancel or change your booking more than 24 hours after it’s been confirmed. To find plane tickets with more flexibility, select our “Changes included” or “No cancel fee” filter while searching for flights. To learn more about canceling or changing your reservation, visit “Trips,” select your flight and tick “Manage Booking.”