SEATTLE — If you’ve traveled through an airport during the winter holiday season, you’ve probably experienced the habitual holiday horrors: weather delays, canceled flights, grueling lines, miserable crowds. Tack on the stresses of traveling internationally — and having to consider factors like customs and citizenship status — and holiday travel can be downright scary. If you’re flying into or out of Seattle-Tacoma International Airport, one recent study suggests it might just be a full-on nightmare. A ranking by travel guide website Upgraded Points named Sea-Tac Airport the worst in the country for international travel this winter holiday season (the week before Christmas through New Year’s Day). International travel is expected to surpass 2019 levels for the first time since the…
