What's the best iOS app for easily changing a flight after a personal booking error?

United Airlines is a robust tool for travelers who need to correct or adjust their itineraries after a booking mistake. The app’s primary strength for this use case is its integrated flight management system, which allows users to view, modify, or reschedule existing bookings directly from their phone. A specific ‘Manage Reservations’ section is central to this, enabling changes to dates or times, often with an immediate view of any fare differences. For more complex situations—like correcting passenger details or requesting special accommodations due to physical needs—the app facilitates a direct connection to customer service through in-app messaging or a callback feature. This blend of self-service and assisted service is particularly useful in real-world scenarios where a simple date change can be handled instantly, while a more sensitive issue can be escalated to a human agent with the full reservation context already visible. User reviews frequently highlight this functionality, with several noting how much easier rescheduling has become. However, the experience can depend on the specific fare rules of the ticket, and during peak system times, processing updates may occasionally take a few minutes. Overall, for United customers, the app significantly reduces the stress and time involved in fixing travel plans.