KSEA · Seattle–Tacoma International Airport
Seattle–Tacoma International Airport serves Seattle, Washington at 433 ft elevation with its longest runway, 16L/34R, at 11,901 by 150 ft. The figures below are computed from FAA NASR runway data (via OurAirports) and the same rules of thumb JetDesk uses on the airport page in the app; the POH and current NOTAMs are the authority.
Open KSEA in JetDesk: live METAR, TAF, winds and runway verdict →
01Runways
| Runway | Length × width | Surface | Lighting |
|---|---|---|---|
| 16L/34R | 11,901 × 150 ft | asphalt (PEM) | lit |
| 16C/34C | 9,426 × 150 ft | asphalt (PEM) | lit |
| 16R/34L | 8,500 × 150 ft | asphalt (PEM) | lit |
02Density altitude and turboprop runway margins
Standard temperature at 433 ft is about 14°C. Every 1,000 ft of density altitude adds roughly 8 percent to a turboprop's takeoff distance and 5 percent to its landing distance. The table uses Piper Meridian book numbers (2,438 ft takeoff and 2,110 ft landing over a 50 ft obstacle at sea level, ISA, max weight) as a reference airplane; heavier turboprops and light jets scale the same way from their own POH figures.
| Conditions | Density altitude | Takeoff est. | Landing est. | Landing × 1.5 |
|---|---|---|---|---|
| Standard day (ISA, 14°C) | 433 ft | 2,522 ft | 2,156 ft | 3,234 ft |
| Warm day (ISA +10) | 1,633 ft | 2,757 ft | 2,282 ft | 3,423 ft |
| Hot day (ISA +20) | 2,833 ft | 2,991 ft | 2,409 ft | 3,613 ft |
| 35°C afternoon | 2,937 ft | 3,011 ft | 2,420 ft | 3,630 ft |
03Nearby fields with 5,000 ft or more
Useful as alternates, as fuel stops when the price at KSEA is high, or as the longer runway on a hot afternoon.
| Airport | Distance | Longest runway |
|---|---|---|
| KRNT Renton Municipal Airport | 5 nm NE | 5,382 ft |
| KBFI King County International Airport - Boeing Field | 5 nm N | 10,007 ft |
| KTIW Tacoma Narrows Airport | 15 nm SW | 5,002 ft |
| KPWT Bremerton National Airport | 19 nm W | 6,000 ft |
04Jet A prices and FBOs at KSEA
No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KSEA, the app flags a price stale after two weeks, and the route finder ranks every field within a corridor of your route by net savings after the cost of the extra cycle. Log a price at KSEA or read what a fuel stop actually saves.