Travel Paine Field: What to expect when ‘Seattle’s second airport’ opens March 4 February 27, 2019February 28, 2019Harriet Baskas, Special to USA TODAYComments Off on Paine Field: What to expect when ‘Seattle’s second airport’ opens March 4 The two-gate terminal feels more like a swank lounge than a regional airport, and offers great plane spotting thanks to the Boeing factory next door.