Between steep fares and crowded terminals, flying during the holidays isn’t fun. But on Friday, December 15, a special Alaska Airlines promotion will ease boarding stress and transform packed planes into mile-high ugly sweater parties, in honor of National Ugly Christmas Sweater Day. As the Los Angeles Times reports, the airline will offer free early boarding to travelers willing to don their holiday worst at the airport.

The promotion is good for all Alaska Airlines flights in the airline’s 115-city network, and for flights offered by Virgin America and Horizon Air (both of which are operated by Alaska Airlines). In addition to escaping the waiting crowds, passengers who share the most festive knitted looks will be featured on Alaska Air's social media pages if they tag their photos and videos using the hashtags #UglySweaterDay and #MostWestCoast. And since no plane aisle-turned-catwalk is complete without a soundtrack, “festive holiday-themed boarding music will play all month long to help get guests into the holiday spirit,” according to a press release.

Worried you’ll be the only person on the plane wearing a sequined Rudolph cardigan? Even if other passengers don’t get the memo, airline crew will also be wearing ugly sweaters—so feel free to unleash your inner Chevy Chase from National Lampoon's Christmas Vacation.

[h/t Los Angeles Times]