$122 Cheap Alaska Airlines flights Palm Springs (PSP) to Washington (IAD)

Use the "Price (lowest to highest)" filter on Expedia to find cheap Alaska Airlines round-trip flights from PSP to IAD. Affordable one-way fares from $122 are also on offer.**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.

To find cheap Alaska Airlines fares from Palm Springs Intl. Airport (PSP) to Washington Dulles Intl. Airport (IAD), 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 is generally the cheapest, 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.

Filter your results by "Early Morning" and "Morning" to see the earliest departures from PSP to IAD. Setting off early means you're 20% 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.

Flying from PSP to IAD with Alaska Airlines means enjoying a variety of perks, such as top-tier customer service and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That's on top of the Mileage Plan points you can earn with Alaska Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.