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The Seattle-Tacoma International (Sea-Tac) Airport had its busiest year in 2025 with 52.6 million passengers traveling between 30 different airlines.
The airport already broke its single-day record last month. On Sunday, June 22, a total of 199,000 travelers passed through TSA checkpoints—topping last summer’s records from Aug. 11 and Aug. 18.
The airport already broke its single-day record last month. On Sunday, June 22, a total of 199,000 travelers passed through TSA checkpoints—topping last summer’s records from Aug. 11 and Aug. 18.
The airport already broke its single-day record last month. On Sunday, June 22, a total of 199,000 travelers passed through TSA checkpoints—topping last summer’s records from Aug. 11 and Aug. 18.
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