Boeing Field / King County International (KBFI), Washington
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Boeing Field / King County International (KBFI) is a towered, public-use airport in Seattle, Washington, sitting just over a mile from the metro core and ranked among the busiest business aviation fields in the FAA's tier-one traffic category. The field offers both 100LL and Jet A fuel, onsite CBP inspection services, and a long primary runway capable of supporting a wide range of jet traffic, all within a dense airspace environment shared with Seattle-Tacoma International and several other regional fields nearby.
Runways
Boeing Field / King County International has two paved runways. The longest, 14R/32L, is 10,007 ft long and 200 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
Boeing Field / King County International has Jet A and 100LL available on the field. Fueling is available 24 hours a day, every day, and the airport has an operating control tower.
Source: FAA Form 5010 / NASR.
Customs
Boeing Field / King County International has US Customs and Border Protection clearance available onsite, with general clearance for international arrivals. A USDA compliance agreement is in place.
Source: CBP list of ports of entry.
Business aviation traffic
Boeing Field / King County International recorded 44,991 business aviation movements in 2025. Traffic peaks in August. Traffic at KBFI is concentrated in the summer and early fall months, with operations peaking in August and remaining elevated through October before tapering off over the winter.
Business jet movements, FAA TFMSC count. Peak month August, 4,576 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Boeing Field / King County International averages 1.5 days above 90°F in July and 7.9 freeze days in December. August is the warmest month, with average highs of 77.4°F, and December the coldest, at 47.8°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Boeing Field / King County International has published operating constraints in seven categories: access, weight restrictions, runway notes, noise procedures, environmental, pavement strength and other notes.
For Museum of Flight transient aircraft parking, prior permission is required; contact Museum of Flight Security.
Taxiway Zulu and the 880-foot special use pavement area are available with prior permission required 72 hours in advance. Contact Airport Operations.
For Boeing Military Flight Center ramp permission, contact the Ramp Coordinator; 72 hours prior permission is required, extending to 96 hours if ordnances or munitions are installed or if ordnance or munitions storage is required. Limited LOX service meeting MIL-PRF-27210J, Type II, is available for Military Flight Center transient aircraft; contact 96 hours prior with needed volume and aircraft type. Prior to arrival onto the Boeing Commercial Airplane ramp, contact Boeing Seattle on the applicable frequency. Advanced permission to access the Boeing Commercial Airplane ramp only requires contact Monday through Friday, 1600 to 0000 Zulu.
For clearance delivery when the tower is closed, contact Seattle Approach.
Taxiway A1 and Taxiway A between A1 and A3 are restricted to aircraft up to 150,000 pounds and with a wingspan of less than 108 feet.
Taxiways A2, A4, A6, and B2 are restricted to aircraft up to 12,500 pounds. Taxiway A9 is restricted to aircraft up to 60,000 pounds.
The high intensity runway lighting on Runway 14R/32L operates from dusk to dawn. The medium intensity runway lighting on Runway 14L/32R is not operating from 0600 to 1500 Zulu and beyond.
Runway 14L/32R is not available for Part 121 or Part 380 operations involving scheduled passenger carrying flights with more than 9 passenger seats, or non-scheduled passenger carrying flights with more than 30 passenger seats.
The visual glide slope indicator is unusable beyond 4 degrees to the right of the runway centerline.
The approach slope is 40:1 to the displaced threshold.
The approach ratio is 27:1 from the displaced threshold.
Traffic pattern altitude for Runway 14L/32R is 1,000 feet MSL; for Runway 14R/32L it is 800 feet MSL.
A marked and lighted 14-foot antenna is located 230 feet from the Runway 14L end, 125 feet to the right.
The tower stands 80 feet above ground level, located 1,200 feet north and 900 feet west of the Runway 14R threshold.
For noise abatement procedures, contact the Noise Office.
Bird flocks are present in the airport vicinity. Pilots should check local advisories.
PCR VALUE: 310/F/B/X/T
PCR VALUE: 770/R/C/W/T
A fence, road, poles, and railroad tracks lie within the east edge of the primary surface.
Touch and go landings are prohibited between 2200 and 0700.
Flight notification service (ADCUS) is available.
General aviation itinerant and transient parking is available. Contact Airport Operations.
There is extensive helicopter training activity on Taxiway B.
Emergency frequency 121.5 is not monitored at the tower.
VFR pilots should review and expect VFR procedures prior to arrival or departure.
Source: FAA Chart Supplement.
Nearby airfields
Boeing Field / King County International has five airfields within 20 NM. The closest is Renton Municipal (KRNT), 4.14 NM southeast.
Part of the Seattle area.
Source: Skystar calculation from official coordinates.
Skystar at KBFI
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$2,400.00 catering order at KBFI.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
What runways are available at KBFI?
Boeing Field / King County International operates two paved asphalt runways. Runway 14R/32L is the primary runway at 10,007 feet long and 200 feet wide, capable of handling large jet traffic. Runway 14L/32R is shorter, at 3,709 feet long and 100 feet wide. That secondary runway is not available for Part 121 or Part 380 scheduled passenger operations carrying more than 9 seats, or non-scheduled operations carrying more than 30 seats. Both runways are lit, with the main runway's lighting operating dusk to dawn.
Are there customs services available at KBFI?
Yes, Boeing Field / King County International has onsite CBP inspection services along with a USDA compliance agreement. A flight notification service, ADCUS, is also available for arranging customs clearance in advance. Because BFI sits on the US-Canada border traffic corridor tracked by the FAA, cross-border figures reported for this field reflect FAA TFMSC data rather than total airport activity. Crews planning international arrivals should coordinate through the standard notification channels ahead of landing.
What is the business aviation traffic volume at KBFI?
KBFI recorded 44,991 business aviation operations in 2025 out of 60,702 total annual operations, according to FAA TFMSC data. Traffic is not evenly distributed across the year: volumes are noticeably concentrated in the summer and early fall months, peaking in August at 4,576 operations. Winter months see comparatively lighter activity, with February recording the lowest count at 3,036 operations. Dispatchers should expect the busiest period at this Seattle-area field to run from mid-summer through October.
Are there taxiway weight or wingspan restrictions at Boeing Field / King County International?
Yes, several taxiways at Boeing Field / King County International carry specific weight and wingspan limits. Taxiway A1 and Taxiway A between A1 and A3 are restricted to aircraft up to 150,000 pounds with a wingspan under 108 feet. Taxiways A2, A4, A6, and B2 are limited to aircraft up to 12,500 pounds, while Taxiway A9 is restricted to aircraft up to 60,000 pounds. Dispatchers routing larger aircraft through the field should confirm taxiway assignments against these limits before filing a ground plan.
What wildlife or operational hazards should pilots know about at KBFI?
Bird flocks are reported in the vicinity of Boeing Field / King County International, and pilots are advised to check local advisories before operating in the area. Extensive helicopter training activity also takes place on Taxiway B, which VFR pilots should anticipate when planning arrivals and departures. Touch and go landings are prohibited between 2200 and 0700 local. The airport also notes a marked and lighted 14-foot antenna located near the Runway 14L end, requiring attention during low approaches on that runway.