Planespotting Seattle Boeing Field — KBFI
Boeing Field — officially King County International — was Seattle's main airport until Sea-Tac opened, and today it is where Boeing's products meet the sky. New 737s built in Renton make their first hop here for flight testing and delivery preparation, P-8 Poseidons and other military derivatives fly test sorties, and fresh customer liveries roll out almost daily. On top of that come UPS and other freighters, a big corporate jet scene and the scheduled commuter flights of Kenmore Air and SeaPort Air. Two parallel runways run northwest–southeast: the 10,000 ft 14R/32L handles almost everything heavy, while short 14L/32R is for light aircraft. Seattle's prevailing southerly flow means landings on 14R from over Georgetown most of the year, with 32L days in fair northerly weather. The Museum of Flight sits on the southwest corner, so you can photograph live test flights and the first 747 in the same afternoon.
- ASA504 B738 4 175 ft
- ASA1403 B738 3 900 ft
- SKW4145 E75L 3 000 ft
- N97PD C172 2 925 ft
- N431PD S22T 2 425 ft
- EJA499 E55P 1 925 ft RWY 13L
- N786SA C172 1 700 ft RWY 31L
- ASA683 B39M 1 675 ft
Conditions right now
Runways
- 13R/31L RWY 13R 3,048 × 60 m · 10,000 × 197 ft closed
- 14R/32L 3,048 × 60 m · 10,000 × 197 ft asphalt
- 14L/32R 1,131 × 30 m · 3,711 × 98 ft asphalt
- 13L/31R 1,130 × 30 m · 3,707 × 98 ft closed
Ask the sky
What flew over this morning? Where was that loud one heading? Ask in plain words — the answer comes from real recorded traffic.
Airport profile
Typical traffic by hour
Relative intensity by local hour — a typical day, not live data.Peak: 09:00
Typical traffic mix
- GA34%
- Bizjet22%
- Narrowbody16%
- Turboprop12%
- Cargo12%
- Military2%
- Widebody2%
Spotter score
Our editorial rating (0–100).Best time of year
When the interesting traffic peaks.Where to spot
The Museum of Flight (and Aviation Pavilion)
On the southwest corner of the field, the museum's buildings and outdoor Aviation Pavilion put you right beside the main runway. Inside are the first Boeing 747, an ex-British Airways Concorde, an early 787 and a former presidential VC-137; outside, the runway action continues behind them. Few places let you shoot a brand-new 737 MAX test flight and a historic prototype within minutes.
- Getting there
- 9404 East Marginal Way South. Free parking; King County Metro buses run along East Marginal Way. Paid admission, open daily 10:00–17:00 (free first Thursday evenings) — check current hours before you go.
- Best time
- Afternoon, when the sun has moved to the west behind you as you face the runway. South flow brings departures rolling past toward the southeast end.
- Lens
- 70–300 mm for runway movements; wide angle for the Pavilion aircraft.
East Marginal Way South (west side of the field)
The public road along the west side runs close to the main runway and the ramps where new Boeing jets park between test flights. Sections of sidewalk near the museum give clear views across to the runway and of taxiing aircraft, including UPS freighters.
- Getting there
- Park legally at the museum or in public spaces nearby and walk; East Marginal Way is a busy truck route, so stay on the sidewalk. Don't stop at gates or company entrances — much of the frontage belongs to Boeing and other tenants.
- Best time
- Afternoon and evening for front-lit shots looking east across the field.
- Lens
- 100–400 mm.
Ruby Chow Park (north end, runway 14R approach)
A small county park near the north end of the airport, under the final approach to 14R. In south flow, which dominates the year, everything from Cessnas to 737 MAX test aircraft and Air Force One on presidential visits passes low overhead. It's the locals' favourite place to watch landings.
- Getting there
- In the Georgetown area off Airport Way South, at the northern tip of the airfield. Street parking nearby; reachable by King County Metro buses along Airport Way. Check the exact location on a map before you go.
- Best time
- South flow (landings on 14R). Mornings and midday give the best light on the approach; late afternoon tends to backlight aircraft coming in from the north-west.
- Lens
- 24–105 mm overhead, 100–400 mm on longer final.
Respect private property, signage and the airport security perimeter. Spotterra predicts the active runway from live weather on the dashboard.
What you'll see
Boeing sets the tone: green or freshly painted 737 MAX aircraft arriving from Renton for test flights and delivery, plus P-8A Poseidons and other military derivatives in testing, and occasional flight-test widebodies. UPS runs a regional hub with 757 and 767 freighters, while Ameriflight and AirPac fly smaller cargo turboprops. Kenmore Air and SeaPort Air operate scheduled commuter flights, and the FBOs handle a steady flow of NetJets and other business jets. Presidential and VIP flights favour Boeing Field when visiting Seattle, and in early August the US Navy Blue Angels base here for Seafair. Military visits and one-off test aircraft make this one of the rarity hotspots of the West Coast.
FAQ
What's that plane over Seattle Boeing Field?
Check Spotterra's live map — test flights, freighters and bizjets around Boeing Field show up with type, registration and route as they fly. Free, no install. Some test aircraft fly under temporary or delivery registrations.
Can I see new Boeing jets at Boeing Field?
Yes. Most new 737s fly here from Renton for flight testing and delivery preparation, and they often park on the ramps visible from public roads before heading to customers.
When do the Blue Angels fly from Boeing Field?
During Seafair, usually the first week of August. Practice and show days bring heavy crowds around the airport, so arrive early.
Is the Museum of Flight good for spotting?
It's the most comfortable base on the field: free parking, runway views and a world-class collection. Pair it with a Spotterra alert for test flights so you know when something special is taxiing out.
Spotterra watches the sky over Seattle Boeing Field
A live ADS-B map of your area and smart alerts on military transports, warbirds and rare types — with 10–30 minutes lead on long-haul arrivals. Free forever, no card.
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