$159 Cheap United flights Washington (IAD) to Palm Springs (PSP)

Apply the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines round-trip flights from $289 from IAD to PSP. Affordable one-way fares from $159 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.

For cheap United Airlines fares from Washington Dulles Intl. Airport (IAD) to Palm Springs Intl. Airport (PSP), start searching one to three months before your intended 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 impact the price 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.

The earliest United Airlines flight from IAD to PSP takes off at 9:00AM UTC-5, landing at 11:42AM UTC-8. If you prefer to head off later, the last United Airlines flight leaves IAD at 9:00AM UTC-5 and lands at PSP at 11:42AM UTC-8. Flying before noon is often a smart option as morning and mid-morning flights are 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.

Travel from IAD to PSP with United Airlines and you'll enjoy a range of perks starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.