I think you read my mind! My number one search term on Pinterest is "90s airport fashion" but when I see the results, I always wonder how people sit on a plane with jeans for so long. I do it occasionally when flying across Europe because the flights are generally short but long haul?! No, thank you haha. I often opt for pants made from a silky material. And a sweater that is warm but not thick is key for me. The reason for the "not thick" is that I want to be able to stuff it in my bad if need be without the bag overflowing.