We would like to know how big the Anchorage Airport is, say in comparison to Detroit or Tampa, etc. What we really want to know is how long on a Sunday night will it take us to return our car, get through security and get to our gate? We weren't sure if the gates were spread out or how efficient the car return process is. We want to enjoy every last minute of our Alaska vacation doing something other than sitting in the airport so we don't want to be too early or be too rushed either. Thanks.