The only MK reg of Alaska Airlines (Horizon Air) "Milton G Koult II".
Southwest's first Scimitar 737 resting in Seattle after arriving in from Chicago's Midway.
"Skywest 4597" (SKW4597) being de-iced before its flight to LAX at gate S2.
"United 1155" (UAL1155) preparing to taxi for departure to Washington Dulles International (KIAD).
"Cactus 573" (AWE573) taxiing out for departure to PHX.