Saint Mary's Airport (PASM), Alaska
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
St Mary's Airport (PASM) is a public-use, non-towered field in western Alaska serving general and business aviation traffic. It offers two gravel runways and relies on nearby PAOM for customs clearance, as no customs service is available onsite.
Runways
Saint Mary's Airport has two unpaved runways. The longest, 17/35, is 6,008 ft long and 150 ft wide, with a gravel surface.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Saint Mary's Airport does not clear customs. The nearest port of entry is Nome (PAOM), 158 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Saint Mary's Airport recorded 510 business aviation movements in 2025. Traffic peaks in July. Business aviation traffic at St Mary's Airport (PASM) concentrates in the summer months, peaking in July and September.
Business jet movements, FAA TFMSC count. Peak month July, 84 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Operating constraints
Saint Mary's Airport has published operating constraints in three categories: access, runway notes and other notes.
Snow and ice removal and hazard reporting occur during duty hours. After-hours service requires prior permission in writing from the airport manager.
The airport is closed to operations requiring passenger screening.
REIL, PAPI on runways 17 and 35, HIRL on runway 17/35, and MIRL on runway 06/24 are pilot-activated via CTAF.
Runway drifting snow and poor braking conditions are possible. Condition reports are available during daylight operations only.
A weather camera is available online at https://weathercams.faa.gov.
Source: FAA Chart Supplement.
Nearby airfields
Saint Mary's Airport has two airfields within 38 NM. The closest is Mountain Village (PAMO), 10.90 NM west.
Source: Skystar calculation from official coordinates.
Skystar at PASM
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 PASM.
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
Does PASM have onsite customs clearance?
St Mary's Airport (PASM) has no onsite customs service. The nearest customs facility is PAOM, located about 158 nautical miles away, so international arrivals must plan clearance there in advance.
What runways are available at St Mary's Airport?
St Mary's Airport (PASM) has two gravel runways: 17/35 at 6,008 feet by 150 feet, and 06/24 at 1,520 feet by 60 feet. Neither runway is paved, and lighting includes REIL, PAPI, and HIRL on 17/35, with MIRL on 06/24, all pilot-activated via CTAF.
What are the attended hours at KSM?
KSM (St Mary's Airport) is attended year-round from 0700 to 1530, seven days a week in winter and Monday through Friday in summer. Snow and ice removal and hazard reporting occur during these duty hours, with after-hours service requiring prior written permission from the airport manager.