There is not much to say about most airplane journeys. Anything remarkable must be disastrous, so you define a good flight by negatives: you didn’t get hijacked, you didn’t crash, you didn’t throw up, you weren’t late, you weren’t nauseated by the food. So you are grateful. The gratitude brings such relief, your mind goes blank, which is appropriate, for the airplane passenger is a time traveler […] And from the moment he steps into the tube and braces his knees on the seat in front, uncomfortably upright – from the moment he departs, his mind is focused on arrival.
Paul Theroux, The Old Patagonian Express: by train through the Americas (page 5)