Daily TSA Passenger Traffic
2024, 2025 and 2026 through equivalent datesAugust 9
Monthly SEA TSA Screened Passenger Comparison
SEA airport-only screening totals · September totals include September 1-5 for all years| Month | 2024 | 2025 | 2026 | 2026 Avg/Day |
|---|---|---|---|---|
| January | 1,269,137 | 1,316,812 | 1,350,782 | 43,574 |
| February | 1,228,912 | 1,258,515 | 1,316,789 | 47,028 |
| March | 1,489,779 | 1,471,881 | 1,514,206 | 48,845 |
| April | 1,523,976 | 1,571,742 | 1,175,768 | 39,192 |
| May | 1,690,542 | 1,702,752 | 951,064 | 31,702 |
| June | 1,912,663 | 1,928,854 | 1,593,342 | 56,905 |
| July | 2,067,522 | 2,112,362 | 2,117,054 | 68,292 |
| August | 2,091,614 | 2,134,809 | 2,109,825 | 68,059 |
| September* | 297,880 | 294,489 | 308,576 | 61,715 |
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Flightline and Flightline Intel are founded, edited and maintained by Greg Gayden, an aviation writer, author and analyst with nearly 25 years of aviation security and regulatory experience.