Originally Posted by
jphripjah
I'm a US citizen, I book a lot of flights to the US. The airline website often has prompts to enter passport details and says these must be entered 72 hours before the flight.
What happens if someone doesn't do it? Are people, including US citizens, being barred from travel to the USA when they arrive at the airport because they didn't enter their passport details 72 hours in advance?
I book most of my flights to the US within 72 hours of travel. Often enough my passport info is not in the booking until I check-in. As a US citizen on a US passport, I've not been prevented from flying to the US because of this.