KSM

St Mary's Airport

ICAO PASM62.0605°N 163.3020°W315 ft / 96 mSmall airport
On the map

St Mary's Airport (IATA: KSM, ICAO: PASM) is a small airport in St Mary's, Alaska, United States. It has 2 runways; the longest is 6,000 ft (1,829 m). It is operated by Alaska Department of Transportation & Public Facilities. In 2025 it handled 12 thousand passengers.

Runways & airfield

Schematic · N · © OpenStreetMap
17/35182° / 002° · LIT
LENGTH6,000 ft1,829 mWIDTH150 ft46 mSURFACEGravel
07/25077° / 257° · LIT
LENGTH1,520 ft463 mWIDTH60 ft18 mSURFACEGravel

Passengers per year

2015–2025
30K
27K
26K
24K
23K
6K
9K
13K
14K
12K
12K
1516171819202122232425

Routes

5 destinations · 1 country

Straight lines are great circles; rings mark true distance from KSM. From the Wikipedia article “St. Mary's Airport (Alaska)” (revision of 6 Jul 2026), CC BY-SA 4.0.

Airlines

3 airlines · destinations from KSM
Passenger3
RYARyan Air Services4GVGrant Aviation2—Aleutian Airways1

Airlines and destinations as the Routes list above has them; the figure is how many destinations each flies from KSM. Hubs from Wikidata. All airlines

Records & rankings

Ranked among 48,075 open airports · world · region · country
Passengers12K (2025)1 · FEWER1 · FEWERMEDIAN · 64KMEDIAN · 64KMORE · 103MMORE · 103M#2,608of 3,974 · #630 North America · #436 USLongest runway6,000 ft1,829 m46 m · SHORT150 ft · SHORTMEDIAN · 975 mMEDIAN · 3,200 ftLONG · 5,300 mLONG · 17,388 ft=4,614of 29,858 · =1,310 North America · =1,036 USElevation315 ft96 m-386 m · LOW-1,266 ft · LOWMEDIAN · 240 mMEDIAN · 787 ftHIGH · 4,938 mHIGH · 16,200 ft=30,957of 43,403 · =14,324 North America · =12,056 USRunways21 · FEWER1 · FEWERMEDIAN · 1MEDIAN · 1MORE · 8MORE · 8=715of 29,978 · =435 North America · =391 US
Scale: share of airports ranked below, best on the right · ties shown as = and a band · passengers are each airport’s latest year on record

Radio frequencies

5 channels
AWOSAWOS 3128.700
CNTRANCHORAGE CNTR124.000
CTAFCTAF122.300
FSSKENAI RDO122.350
MISCTWEB23.000