$147 Cheap United flights Washington (IAD) to Orange County (SNA)

Use the “Price (lowest to highest)” filter on Expedia to look for cheap United Airlines round-trip flights from $256 from IAD to SNA. Affordable one-way fares from $147 are available too.**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.

Look for one-way or return flights to Santa Ana in January or April. You could find lower fares with United Airlines during these off-peak times.

Begin your search one to three months before your departure to find cheaper fares on United Airlines flights from Washington Dulles Intl. Airport (IAD) to John Wayne Airport (SNA). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic flights.*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.

Enter your dates, hit search and select the “Nonstop” filter on Expedia to browse any direct flights from IAD to SNA with United Airlines or other airlines.

To find the earliest departure from IAD to SNA with United Airlines, sort your results by “Morning” and “Early Morning.” Booking an early flight usually means cancellations are less likely.**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.

John Wayne Airport (SNA) is the main Santa Ana gateway for United Airlines flights from Washington Dulles Intl. Airport (IAD).

Fly from IAD to SNA 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.

Depending on the type of fare you purchased, a fee typically applies if you cancel or reschedule your booking more than 24 hours after confirmation. To secure tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes when looking for flights. For more details on changing or canceling your reservation, head to “Trips,” select your flight and click on “Manage Booking.”