Seattle–Tacoma International Airport in December 2025

Everything we hold for Seattle–Tacoma International Airport in December 2025: 33,900 flights (arrivals + departures) (the US BTS) · 44,088 tonnes of cargo (the US BTS) · 3,998,040 passengers (the US BTS) · 4,874,221 seats offered (the US BTS). Each figure carries the body that published it and how it was measured.

Day by day in this month

No day-level counts for this month.

Figure

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How it is measuredFigure Domestic / InternationalSource
Flights (arrivals + departures) all traffic at the airport 33,900 30,293 / 3,607 the US BTS
Tonnes of cargo all traffic at the airport 44,088 29,386 / 14,701 the US BTS
Passengers all traffic at the airport 3,998,040 3,456,298 / 541,742 the US BTS
Seats offered all traffic at the airport 4,874,221 4,203,123 / 671,098 the US BTS

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