$157 Cheap Delta flights Seattle (SEA) to Portland (PWM)

You’ll discover affordable round-trip Delta Air Lines flights from $313 from SEA to PWM by organizing your results from “Price (lowest to highest)” on Expedia. Or look for options from $157 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.

Delta Air Lines flights to Portland tend to be more affordable in the low-season months of January and February. Whether you’re after a one-way or a return ticket, you could land a better deal then.

For cheap Delta Air Lines fares from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Jetport Airport (PWM), 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 how much you pay. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip 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.

To figure out if there’s a direct route from SEA to PWM with Delta Air Lines or any other carriers, select the “Nonstop” filter when browsing for flights.

Find Delta Air Lines’s earliest flights from SEA to PWM by selecting the “Morning” and “Early Morning” filters. Not only will you get to where you’re going sooner, early departures are also 20% less likely to be 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.

Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Portland arrive at Portland Intl. Jetport Airport (PWM). This is the main gateway here.

Taking off from SEA to PWM with Delta Air Lines comes with a host of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to spend on select future travel purchases. That’s on top of the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You can usually change or cancel your flight, although additional charges may apply if your booking was made more than 24 hours ago. Prefer to keep your options open? Make use of Expedia’s “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you need to revise your plans. To modify your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for further information.