San Carlos Airport (KSQL), California
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
San Carlos Airport (KSQL) is a towered public-use field in San Mateo County, California, sitting close to San Francisco International and other Bay Area airports. Business aviation activity accounts for the bulk of the roughly 6,100 annual operations recorded at the field.
Runways
San Carlos Airport has one paved runway, 12/30, 2,621 ft long and 75 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Source: FAA Form 5010.
Fuel and airfield services
San Carlos Airport has Jet A, Jet A+, 100LL and UL94 available on the field. Fueling is available from 8am to 6pm, daily, and the airport has an operating control tower.
Source: FAA Form 5010 / NASR.
Customs
San Carlos Airport does not clear customs. The nearest port of entry is San Francisco International (KSFO), 9 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
San Carlos Airport recorded 4,280 business aviation movements in 2025. Traffic peaks in September. Business aviation traffic at KSQL is somewhat concentrated, with September, March, and November posting the highest monthly operations counts in 2025.
Business jet movements, FAA TFMSC count. Peak month September, 425 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
San Carlos Airport averages 4.2 days above 90°F in September and 2.6 freeze days in December. July is the warmest month, with average highs of 81.0°F, and December the coldest, at 58.6°F.
Weather station is 2.2 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
San Carlos Airport has published operating constraints in five categories: access, runway notes, noise procedures, environmental and other notes.
A 7-foot lighted dike is located in the runway safety area at the approach end of runway 30.
For clearance delivery when the control tower is closed, contact NorCal Approach.
When the control tower is closed, pilots must activate MIRL runway 12/30 and REIL runway 12/30 on frequency 119.0.
A 7-foot lighted dike is located 100 feet east of the centerline at the threshold, extending to 60 feet east of the centerline at the end of the primary surface.
Calm wind runway is 12.
100-foot steel transmission towers and powerlines are located 750 feet west of and parallel to runway 12/30.
Noise-sensitive areas lie south through northeast of the airport. Contact the airport manager for noise abatement procedures.
Migratory bird activity occurs on and in the vicinity of the airport.
The visual glide slope indicator is unusable beyond 8 degrees left of centerline.
Touch-and-go and stop-and-go landings are not permitted when the control tower is closed.
Rabbit Aviation operates on frequency 130.00.
Large helicopters should avoid overflight of the dirt infield areas.
Source: FAA Chart Supplement.
Nearby airfields
San Carlos Airport has five airfields within 12 NM. The closest is Palo Alto (KPAO), 7.09 NM southeast.
Part of the San Francisco Bay Area area.
Source: Skystar calculation from official coordinates.
Skystar at KSQL
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.
$600.00 catering order at KSQL.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
The $75 minimum applies below $862.50.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
Is there customs clearance available at KSQL?
San Carlos Airport (KSQL) does not have onsite customs service. The nearest customs facility is at San Francisco International, about 8.78 nautical miles away, for crews needing to clear customs near San Carlos.
What fuel is available at San Carlos Airport?
KSQL offers 100LL, Jet A, Jet A+, and UL94. The field is attended daily from 0800 to 1800 local, which is the window for fuel service and other ground support at San Carlos Airport.
How long is the runway at KSQL?
San Carlos Airport has a single paved runway, 12/30, measuring 2,621 feet long and 75 feet wide with an asphalt surface. This length is a key planning factor for operators evaluating aircraft performance at KSQL.