Introduction Booking flights online has never been more convenient—but selecting the perfect seat and upgrading to a more comfortable cabin can sometimes feel like navigating a maze. If you’ve booked with Expedia and wondered how to secure your preferred seat or move up to a premium class, you’re in the right place. In this guide, we’ll walk you through everything you need to know about Expedia Seat Selection & Upgrades , explain the process, clarify what’s included and what