Add Yahoo as a preferred source to see more of our stories on Google. Passengers check in at O'Hare International Airport in Chicago. (Scott Olson/Getty Images) (Scott Olson via Getty Images) There ...

In short, the average cost to upgrade to premium economy at check-in typically ranges from $150 to $450 for long-haul ...

A major airline is changing its check-in policy to require earlier passenger arrivals. Starting June 3, United Airlines will require customers without checked bags to check in for domestic flights at ...

"Check-in chicken" is a strategy where travelers wait until the last minute to check in, hoping for a better seat assignment. The only guaranteed way to get a preferred seat is to pay for a seat ...