Seattle King County International Airport - Boeing Field (BFI)
BFI / KBFI
Official · May 2026
5,258
King County International Airport - Boeing Field handled 5,258 passengers in May 2026, up 33.6% on a year earlier, according to US Bureau of Transportation Statistics — T-100 Air Carrier Statistics.
Full count · domestic + internationalPassengers over time
Showing 53 months. Full series runs 1990–2026 (368 periods).
Domestic / International
May 2026- Domestic 99.3% 5,220
- International 0.7% 38
Against 2019 +80.4% same month, before the pandemic
International share 1% of passengers in May 2026
Series depth 36 years from 1990
The most recent periods
Open any period for the full breakdown.24 of 24
| Period | Passengers | Year on year | Source | |
|---|---|---|---|---|
| May 2026 | 5,258 | +33.6% | US Bureau of Transportation Statistics | Open this month → |
| April 2026 | 4,221 | −2.3% | US Bureau of Transportation Statistics | Open this month → |
| March 2026 | 3,711 | −34.0% | US Bureau of Transportation Statistics | Open this month → |
| February 2026 | 2,564 | −1.6% | US Bureau of Transportation Statistics | Open this month → |
| January 2026 | 3,582 | +12.5% | US Bureau of Transportation Statistics | Open this month → |
| December 2025 | 4,136 | +23.6% | US Bureau of Transportation Statistics | Open this month → |
| November 2025 | 4,428 | +10.1% | US Bureau of Transportation Statistics | Open this month → |
| October 2025 | 6,975 | +40.9% | US Bureau of Transportation Statistics | Open this month → |
| September 2025 | 5,379 | −13.2% | US Bureau of Transportation Statistics | Open this month → |
| August 2025 | 7,179 | +14.1% | US Bureau of Transportation Statistics | Open this month → |
| July 2025 | 5,231 | −23.1% | US Bureau of Transportation Statistics | Open this month → |
| June 2025 | 5,494 | +9.9% | US Bureau of Transportation Statistics | Open this month → |
| May 2025 | 3,936 | −3.3% | US Bureau of Transportation Statistics | Open this month → |
| April 2025 | 4,319 | −12.7% | US Bureau of Transportation Statistics | Open this month → |
| March 2025 | 5,622 | +18.4% | US Bureau of Transportation Statistics | Open this month → |
| February 2025 | 2,605 | −12.7% | US Bureau of Transportation Statistics | Open this month → |
| January 2025 | 3,185 | −38.4% | US Bureau of Transportation Statistics | Open this month → |
| December 2024 | 3,346 | −25.0% | US Bureau of Transportation Statistics | Open this month → |
| November 2024 | 4,021 | −20.5% | US Bureau of Transportation Statistics | Open this month → |
| October 2024 | 4,949 | −7.2% | US Bureau of Transportation Statistics | Open this month → |
| September 2024 | 6,196 | −8.0% | US Bureau of Transportation Statistics | Open this month → |
| August 2024 | 6,290 | +11.5% | US Bureau of Transportation Statistics | |
| July 2024 | 6,799 | +9.1% | US Bureau of Transportation Statistics | |
| June 2024 | 5,001 | −2.8% | US Bureau of Transportation Statistics |
Also tracked here: aircraft movements (through May 2026), tonnes of cargo (through May 2026).