Statistics

They say that one picture is worth a thousand words. And sometimes one number is worth just as many. Some interesting numbers which demonstrate the economic, social and environmental impacts of the airport to the local communities, King County and the State of Washington.

Aircraft Operations

  • 416,124 takeoffs and landings at Sea-Tac Airport in 2017 (Increase of 1 percent from 2016)
  • Average daily operations: 1,045
  • U.S. rank by operations: #9th busiest in 2017

Passengers

  • 46.9 million in 2017 (2.6 percent increase over 2016)
  • Domestic passengers: 37,960,191 (+7.7 percent, 89.8 percent of total)
  • International passengers: 4,380,346 (+11.1 percent, 10.2 percent of total)
  • U.S. rank by passenger numbers: #9 (2016 rank)
  • World ranking by passenger numbers: #40
  • Gates: 80
  • Approximately 74 percent of the airport’s passengers originate and/or terminate their itinerary at Sea-Tac

Air Cargo

  • 425,857 metric tons in 2017.
  • U.S. rank by air cargo volume: #19 in 2016

Fuel & Emissions

  • In 2016 SeaTac pumped 586,300,186 gallons of fuel
  • According to the EPA one gallon of jet fuel produces 21.1 pounds of carbon dioxide
  • Combustion of this fuel generated 12,370,933,924 pounds of carbon dioxide, which equals 5,610,400 metric tons
  • Washington State’s Top Ten Climate Polluters

Air Carriers

  • Twenty-eight airlines serve 87 nonstop domestic and 23 non-stop international cities.
  • Top carriers by passengers (percent of total): Alaska 51 percent, Delta 19.4 percent, Southwest, 7.7 percent, United 6.8 percent
  • Top carriers by domestic passengers: Alaska 50.1 percent, Delta 20 percent, Southwest 7.4 percent, United 6.3 percent
  • Top carriers by international passengers: Delta 31.9 percent, Alaska 24.2 percent, Emirates 8 percent, EVA Air 5.3 percent, Hainan Airlines 5 percent

Runways

Sea-Tac is a category IIIb certified airfield, allowing operations in all but the worst conditions. There are three runways:

  • Runway #1 16L/34R – 11,901 feet
  • Runway #2 16C/34C – 9,426 feet
  • Runway #3 16R/34L – 8,500 feet

Revenues and Taxes

Operated by the Port of Seattle, Seattle-Tacoma International Airport (SEA, KSEA) is ranked as the 9th busiest U.S. airport, serving 46.9 million passengers and more than 425,800 metric tons of air cargo in 2017. With a regional economic impact of more than $22.5 billion in business revenue, Sea-Tac generates more than 151,400 jobs (87,300 direct jobs), representing over $3.6 billion in direct earnings and more than $442 million in state and local taxes. Thirty-four airlines serve 91 non-stop domestic and 28 international destinations.