> For the complete documentation index, see [llms.txt](https://resources.atriptech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.atriptech.com/help-center/popular-topics/post-booking/flight-change/flight-change-request-deadline.md).

# Flight Change Request Deadline

**The flight change request must meet the following conditions:**

1. Submitted at least 48 hours before the flight departure.
2. Follow the airline’s fare rule for flight change.