In 2026, Southwest Airlines' EarlyBird Check-In® typically costs between $15 and $25 per passenger, per direction. The price is dynamic and depends on the length of the flight and the popularity of the route. This service automatically checks you in 36 hours before departure—12 hours before general check-in opens—which usually secures you a better boarding position (typically in the mid-to-late 'A' group or early 'B' group). It is important to remember that EarlyBird does not guarantee an 'A' boarding position, as "Business Select" passengers and "A-List" elite members are always checked in first. For many travelers, the $15–$25 investment is considered "worth it" because Southwest does not assign seats; a better boarding position means a much higher chance of snagging a window or aisle seat and finding overhead bin space for your carry-on. You can purchase EarlyBird at the time of booking or add it later through the app, but since it is sold on a first-come, first-served basis, buying it as early as possible is the best strategy to maximize your boarding advantage.