The Federal Aviation Administration scheduled an arrival delay program for Seattle-Tacoma International Airport on Sunday evening, Nov. 8. The FAA advisory estimates delays averaging 31 minutes, with assignments as long as 86 minutes. It covers flights scheduled to arrive from 6:30 p.m. through 10:59 p.m. Pacific time.

The program applies to Sea-Tac-bound flights from the contiguous United States and five Canadian airports: Calgary, Edmonton, Kelowna, Vancouver and Victoria. The FAA can hold affected flights at their departure airports to space out arrivals. The 31-minute figure is the program average, so travelers should check their airline for their own departure time, especially if they have a connection in Seattle.

The FAA cited the closure of Sea-Tac’s center runway and limited air traffic control operations at nearby Boeing Field. The Port of Seattle lists the center runway closure as part of a scheduled project. King County said controllers at Boeing Field are working from a temporary tower during emergency repairs. The airports share airspace, and the county warned that Boeing Field’s restrictions could also reduce the number of arrivals Sea-Tac can handle.

Passengers can check Sea-Tac’s flight board by flight number and look up revisions to the program on the FAA’s airport status page. If you have a tight connection, check the airline’s updated arrival estimate before changing your plans.