The practice of reserving two separate airline itineraries concurrently, often involving different airlines or routes, can serve various purposes. For instance, a traveler might reserve a flight from City A to City B on Airline X and another from City B to City C on Airline Y, both departing around the same time. This could be to take advantage of lower fares on separate tickets, or to ensure a backup option in case of delays or cancellations.
Reserving multiple concurrent itineraries has become more prevalent with the rise of online travel agencies and budget airlines. While offering potential cost savings and flexibility, this strategy can present challenges such as missed connections if the first flight is delayed. Careful planning and consideration of potential risks are essential for successful implementation. Historically, booking such overlapping itineraries was less common due to higher ticket prices and limited access to real-time flight information.