How to Change a Flight on Expedia Airlines: A Comprehensive Guide Changing a flight can be a stressful experience, but Expedia Airlines aims to make the process as straightforward as possible. Whether you need to reschedule due to unexpected events, or you simply found a better flight option, this guide will walk you through the steps and considerations for changing your flight on Expedia Airlines. Understanding Expedia Airlines' Change Policy Before diving into the process, it?s essential to understand Expedia Airlines? change policy. Here are some key points: Same-Day Change: For a nominal fee, Expedia Airlines offers the option to change your flight on the same day of travel. This can be beneficial if you need a last-minute change.