Airport Gate Competition Act

This bill requires large airports (handling 0.25%+ of national flights with 2 or fewer carriers controlling 50%+ of passengers) to ensure at least 25% of terminal facilities (like gates and ticket counters) are available for common use by multiple airlines, while capping exclusive use by a single carrier at 50%. It mandates that airport owners seek federal approval for lease agreements affecting these facilities to maintain competition, and requires new terminal projects starting in 2026 to incorporate these access rules. The law directly affects major U.S. airports dominated by a few airlines, aiming to increase competition for gate access. Key definitions clarify "reasonable access" and "terminal facilities" to implement these requirements.