$973 Cheap China Southern Airlines flights Boston (BOS) to Changsha (CSX)

Set the "Price (lowest to highest)" filter on Expedia to find cheap China Southern Airlines round-trip flights from BOS to CSX. Affordable one-way fares from $973 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.

Getting the best China Southern Airlines deals from BOS to CSX often comes down to timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better still, you can pocket 17% on average by buying your fare on a Sunday rather than a Friday, which is often the most expensive day to book.* It's a good idea to start checking out flights about one month before you want to travel.*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 browse the earliest departures from BOS to CSX. Setting 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.

With a 4-star airline rating and an excellent in-flight experience, China Southern Airlines is the leading choice for many travelers flying from BOS to CSX. What's more, if you're a China Southern Sky Pearl Club and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.