Airlines reservation systems consolidate flight data - flight schedules, seat availability, flight fares, and reservations - from all airlines and provide real-time inventory and rates for customers and travel agents to book flight tickets online using global distribution systems.

An airline booking engine also shows dynamic packages like airline + hotel, hotels + holiday packages, and hotels + cars. It is capable of handling a large number of booking transactions in a short period of time.

Other benefits that make the flight reservation system even more useful include faster execution, real-time flight schedules, fares, fare tariffs, and ease of booking. The internet-based reservation system reduces the need for manual intervention.