Seattle–Tacoma International Airport in April 2026

Everything we hold for Seattle–Tacoma International Airport in April 2026: 33,951 flights (arrivals + departures) (the US BTS) · 49,961 tonnes of cargo (the US BTS) · 3,888,970 passengers (the US BTS) · 4,878,961 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 33,951 30,339 / 3,612 the US BTS
Tonnes of cargo all traffic at the airport 49,961 35,245 / 14,716 the US BTS
Passengers all traffic at the airport 3,888,970 3,348,909 / 540,061 the US BTS
Seats offered all traffic at the airport 4,878,961 4,200,517 / 678,444 the US BTS

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