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Story summary
- Seattle-Tacoma International Airport rose to No. 11 in J.D. Power’s 2025-2026 survey, most improved.
- The survey collected responses from 25,000 U.S. and Canadian travelers who flew between July 2025 and July 2026.
- The $399 million C Concourse expansion raised space to 225,000 sq ft, completing in June.
- A $546 million renovation of the main terminal’s north end finished earlier this year.
- Port of Seattle will begin a $2.5 billion S Concourse renovation in 2027, targeting completion by 2034.