$634 Cheap United flights Washington (IAD) to Pisa (PSA)

You can find cheap round-trip United Airlines flights from IAD to PSA by organizing your results from “Price (lowest to highest)” on Expedia. Or search for deals from $634 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.

Browse for one-way or round-trip flights to Pisa in February or January. You could find cheaper fares with United Airlines during these off-peak travel months.

To find affordable flights from IAD to PSA with United Airlines, begin searching about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**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 see if there’s a direct route from IAD to PSA with United Airlines or another carrier, select the “Nonstop” filter when searching for flights.

Filter your results by “Early Morning” and “Morning” to find the earliest departures from IAD to PSA. Leaving 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.

United Airlines flights from Washington Dulles Intl. Airport (IAD) to Pisa arrive at Galileo Galilei Airport (PSA). This is the main entry point to this city.

A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to leave from IAD to PSA with United Airlines. Plus, when you join Expedia’s free One Key™ program, you can receive OneKeyCash™* on top of any airline loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

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