You show up with a valid passport and a boarding pass, and the airline still says no. This happens every day at airports, and it almost always comes down to one rule: your passport must be valid for long enough after you arrive. The frustrating part is that it is not an airline rule you can negotiate at the counter.
Discover which airline loyalty perks have disappeared, even for elite flyers, from upgrades to lounge access, and learn how changing airline policies affect frequent travelers today worldwide flights programs trends.