Auburn Municipal (S50), Washington
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Auburn Municipal (S50) is a single-runway public-use airport south of Seattle in Auburn, Washington. It sits within a dense cluster of regional fields, with Seattle-Tacoma International just over 8 nautical miles away. The airport is non-towered and handles a modest volume of business aviation traffic each year.
Runways
Auburn Municipal has one paved runway, 17/35, 3,842 ft long and 75 ft wide, with an asphalt surface.
Source: FAA Form 5010.
Fuel and airfield services
Auburn Municipal has Jet A and 100LL available on the field. Fueling is available from 8am to 5pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Auburn Municipal does not clear customs. The nearest port of entry is Seattle-Tacoma International (KSEA), 8 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Auburn Municipal recorded 322 business aviation movements in 2025. Traffic peaks in August. Business aviation traffic at S50 climbs in the second half of the year, peaking in August and November according to FAA TFMSC data.
Business jet movements, FAA TFMSC count. Peak month August, 41 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Auburn Municipal has published operating constraints in five categories: access, runway notes, noise procedures, environmental and other notes.
A 20:1 approach slope applies due to an 80-foot east-west power line located 1,804 feet north of the threshold.
Ultralight operations are not authorized. Overflight of the residential area east of the airport is not authorized. Traffic pattern instructions are available from the airport manager.
For clearance delivery, contact Seattle Approach.
Runway edge identifier lights (REIL) for Runway 17 and 35, and medium intensity runway lighting (MIRL) for Runway 17/35, are pilot-controlled via CTAF. PAPI for Runway 17 and 35 operates continuously.
Calm wind runway.
Catalogued obstructions include parking lot light poles.
Calm wind runway: 35.
Avoid Runway DLA when the traffic pattern is active.
Helicopter touchdown running landings and takeoffs are prohibited on Taxiway Alpha and Runway 17/35.
Refer to the airport website for traffic pattern information and noise abatement procedures.
Birds and wildlife are present in the vicinity of the airport.
PAPI is unusable beyond 10 degrees right of centerline.
Winter weather is reported Monday through Friday, 0800 to 1700.
A weather report is available by keying the microphone four times on frequency 122.8.
Pilot-controlled lighting is available 24 hours a day, seven days a week.
Source: FAA Chart Supplement.
Nearby airfields
Auburn Municipal has five airfields within 15 NM. The closest is Seattle-Tacoma International (KSEA), 8.12 NM northwest.
Part of the Seattle area.
Source: Skystar calculation from official coordinates.
Skystar at S50
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 S50.
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
What runway does S50 offer?
Auburn Municipal (S50) has one paved runway, 17/35, measuring 3,842 feet long and 75 feet wide with an asphalt surface. There is no crosswind runway, so calm-wind operations use Runway 35.
Is customs clearance available at Auburn Municipal (S50)?
Auburn Municipal (S50) has no onsite customs service. The nearest customs facility is at Seattle-Tacoma International (KSEA), located approximately 8.12 nautical miles away.
What obstacles affect approaches at S50?
Auburn Municipal (S50) has an 80-foot east-west power line located 1,804 feet north of the runway threshold, associated with a 20:1 approach slope. Parking lot light poles near the field are also catalogued obstructions.