Runway 1L at KSFO
Runway 1L/19R at San Francisco International Airport (KSFO) in San Francisco is a 7,650 ft, lighted, asphalt runway oriented 028°/208°. The runway is 200 ft wide, with a 645 ft displaced threshold on the 1L end. SkyMeter has observed 65 landings and 11 departures on this runway over the last 30 days, with approximately 0.0% of arrivals resulting in a go-around. Trace data shows an average final-approach slope of 4.2°, touchdowns averaging 14,422 ft past the threshold, a typical touchdown ground speed of 62 kt, a 9.9 kt average crosswind component, a 1.7 kt average headwind.
Runway 1L/19R at San Francisco International Airport (KSFO) in San Francisco is a 7,650 ft, lighted, asphalt runway oriented 028°/208°. The runway is 200 ft wide, with a 645 ft displaced threshold on the 1L end. SkyMeter has observed 65 landings and 11 departures on this runway over the last 30 days, with approximately 0.0% of arrivals resulting in a go-around. Trace data shows an average final-approach slope of 4.2°, touchdowns averaging 14,422 ft past the threshold, a typical touchdown ground speed of 62 kt, a 9.9 kt average crosswind component, a 1.7 kt average headwind.
Runway at a Glance
Arrival Volume
65 landings observed on Runway 1L in the last 30 days, alongside 11 departures.
Peak Hour
Busiest landing window observed at 00:00 with 10 arrivals on the recent sample.
Average Touchdown Zone
Aircraft touch down on average 14,422 ft from the threshold on Runway 1L.
Prevailing Wind & Gust History
Over the past 365 days, winds at KSFO have prevailed from the west (270°), accounting for roughly 31% of windy observations. Average wind speed sits at 8.1 kt with peak gusts to 63 kt. Strong-wind days are infrequent here.
Moderate Crosswind Component
Average crosswind on landing is 9.9 kt at touchdown, measured against runway 1L alignment.
Approach Slope
Final-approach slope averages 4.2° on Runway 1L, steeper than the standard 3°.
Landing Behavior and Touchdown Performance
The metrics below are computed from ADS-B trace data observed at Runway 1L over the last 30 days. Each value is shown only when at least 10 valid samples were available; sparse cells are hidden rather than estimated.
Hourly Landing Distribution
Recent observed landings on Runway 1L grouped by hour-of-day (UTC).
Approach Types and Categories
Aircraft approach runways using different procedures based on weather conditions, visibility, and available navigation equipment. An Instrument Landing System (ILS) approach provides precision horizontal and vertical guidance using ground-based radio signals, enabling aircraft to land in low visibility conditions. Visual approaches require pilots to maintain visual contact with the runway and surrounding terrain, typically used during clear weather. Area Navigation (RNAV) approaches use GPS technology to guide aircraft along specific flight paths.
Approach Categories Explained
Category (CAT) classifications define minimum visibility and decision height requirements for instrument approaches. Higher categories enable operations in lower visibility conditions.
Wind and Environmental Factors
Wind conditions directly impact runway operations, influencing approach difficulty, landing performance, and runway selection. Runway 1L benefits from favorable wind alignment, with prevailing winds creating minimal crosswind components for most operations. Average wind speeds of 12 knots pose no operational constraints for commercial aircraft.
24-Hour Wind Pattern
Wind patterns show typical diurnal variation with stronger winds during midday hours.