King County International Airport - Boeing Field frequencies

King County International Airport - Boeing Field (BFI · KBFI) in Seattle, WA is a towered field, staffed 24 hours. Every frequency below is in the order you tune it, from the first call to the handoff on climb out. · Open on the map

All of King County International Airport - Boeing Field — runways, frequencies, charts and live weather

Before taxi Boeing

ATIS 127.75: A recorded loop of the field's weather, active runway and any notices, updated hourly or whenever conditions change. Listen before your first call, and tell the controller which letter you have so they do not read it to you again.
Clearance 132.4: Clearance delivery issues your IFR clearance, and at busier fields your VFR departure instructions and squawk code. Call before you request taxi, with the ATIS letter and your intended direction of flight.

Taxi & takeoff Boeing

Ground 121.9: Ground control owns every taxiway and inactive runway on the field. Call for taxi with your position and destination on the field. You need an explicit clearance to cross any runway, including one that is not in use.
Tower 118.3 (RWY 14L/32R), 120.6 (RWY 14R/32L & ALL IFR): Tower owns the active runways and the surrounding surface area. Call before entering the surface area inbound, and hold short until you are cleared to take off or to cross.

Departure & arrival Seattle

App/Dep 119.2 (017-079 SEA, RWY 32 · KENT · NRVNA RNAV departures), 120.1 (223-289 SEA, RWY 14), 120.4 (301-340 SEA. RWY 32 · CBAIN RNAV · NEEDLE departures), 125.9 (080-125 SEA, RWY 32), 126.5 (126-222 SEA, RWY 32), 128.5 (302-016 SEA, RWY 32): One radar controller working both arrivals and departures — normal at a smaller TRACON. The same frequency takes your climb out and your inbound call.

Arrival Seattle

Approach 125.9 (initial contact): Approach control is the radar facility sequencing arrivals into the area. Call inbound for flight following or an instrument approach, with your position, altitude and request.

Also

UNICOM 122.95: A ground station run by the FBO rather than the FAA, for fuel, parking and airport services. Use it for services. Where the field has no separate CTAF, the same frequency doubles as the advisory frequency.
Flight service 122.5: Flight Service handles briefings, flight plans and en route advisories, reached here through a remote outlet. Open and close VFR flight plans, and get updated weather in the air. 1-800-WX-BRIEF reaches the same specialists from the ground.

By procedure & sector (16 more)

119.2	CLASS B (017-079 SEA, RWY 32), CLASS B (028-160 SEA RWY 14), KENT DP, NRVNA RNAV DP
120.1	CLASS B (223-289 SEA, RWY 14), CLASS B (223-301 SEA, RWY 32)
120.4	CBAIN RNAV DP, NEEDLE DP
123.9	GLASR STAR
125.6	JAWBN STAR, OLYMPIA STAR
125.9	CLASS B (080-125 SEA RWY 32), CLASS B (290-315 SEA RWY 14)
126.5	CLASS B (126-222 SEA, RWY 32), CLASS B (161-222 SEA, RWY 14)
128.5	CLASS B (302-016 SEA, RWY 32), CLASS B (316-027 SEA, RWY 14)
257.8	LCL/P
269.125	APCH/P DEP/P (301-340 SEA, RWY 32), CBAIN RNAV DP, NEEDLE DP
273.45	JAWBN STAR, OLYMPIA STAR
284.7	APCH/P DEP/P (017-079 SEA, RWY 32), APCH/P DEP/P (028-160 SEA, RWY 14), CLASS B (017-079 SEA RWY 32), CLASS B (028-160 SEA RWY 14), KENT DP, NRVNA RNAV DP
290.9	APCH/P DEP/P (080-125 SEA, RWY 32), APCH/P DEP/P (290-315 SEA, RWY 14), CLASS B (080-125 SEA, RWY 32), CLASS B (223-289 SEA, RWY 14), CLASS B (223-301 SEA, RWY 32), CLASS B (290-315 SEA, RWY 14)
306.9	APCH/P DEP/P (302-016 SEA, RWY 32), APCH/P DEP/P (316-027 SEA, RWY 14), APCH/P IC, CLASS B (302-016 SEA, RWY 32), CLASS B (316-027 SEA, RWY 14)
338.2	GLASR STAR
377.15	APCH/P DEP/P (126-222 SEA, RWY 32), APCH/P DEP/P (161-222 SEA, RWY 14), CLASS B (126-222 SEA, RWY 32), CLASS B (161-222 SEA, RWY 14)

Every KBFI frequency, as one table

ATIS	127.75
Clearance	132.4
Ground	121.9
Tower	118.3 (RWY 14L/32R), 120.6 (RWY 14R/32L & ALL IFR)
UNICOM	122.95
Flight service	122.5
Approach	125.9 · initial contact
App/Dep	119.2 · 017-079 SEA, RWY 32 · KENT · NRVNA RNAV departures
App/Dep	120.1 · 223-289 SEA, RWY 14
App/Dep	120.4 · 301-340 SEA. RWY 32 · CBAIN RNAV · NEEDLE departures
App/Dep	125.9 · 080-125 SEA, RWY 32
App/Dep	126.5 · 126-222 SEA, RWY 32
App/Dep	128.5 · 302-016 SEA, RWY 32

Frequently asked

What is the tower frequency at KBFI?

King County International Airport - Boeing Field tower is 118.3 (RWY 14L/32R), 120.6 (RWY 14R/32L & ALL IFR), calling "Boeing Tower". The tower is staffed 24 hours.

What is the ground frequency at KBFI?

Ground control at King County International Airport - Boeing Field is 121.9. You need an explicit clearance from ground to cross any runway while taxiing, including one that is not in use.

What is the ATIS frequency at KBFI?

ATIS at King County International Airport - Boeing Field is 127.75. Listen before your first call and report the letter you have.

What is the approach frequency for KBFI?

Approach for King County International Airport - Boeing Field is 125.9, working as "Seattle" (initial contact). Call inbound for flight following or to begin an instrument approach.

Where do I get my clearance at KBFI?

Clearance delivery at King County International Airport - Boeing Field is 132.4. Call before requesting taxi, with the current ATIS letter and your direction of flight.

More about KBFI

Frequencies from FAA NASR. For planning and education only; always verify against official sources.