$599 Cheap Air China flights Washington (IAD) to Changsha (CSX)

You'll discover cheap round-trip Air China flights from $1,133 from IAD to CSX by organizing your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $599 for a one-way trip.**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 flights from IAD to CSX with Air China, begin your search 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 good tip? Booking on Sunday can lead to 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.

Filter your results by "Morning" and "Early Morning" to see the earliest flights from IAD to CSX. Heading off 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.

Top-tier customer service and the ability to rack up points through PhoenixMiles are the start of the reasons to jet off from IAD to CSX with Air China. Plus, when you sign up to Expedia's free One Key™ program, you can receive OneKeyCash™* on top of Air China's 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.