What does United have farelock? is an ideal option for tourists as it offers a stress-free way to compare prices without needing to book a reservation straight away. Imagine yourself finding a great flight price but you are not quite ready to book it. Enter FareLock to get your peaceful ticket. For a nominal charge, you can retain your reservation and fare for a duration of three or seven days providing you with the necessary time to finalize your arrangements, liaise with fellow travelers or just relish in the splendor of your discovery. This function comes in very useful when organizing complicated travel schedules or waiting for permission.