Airports · St Mary's Airport
Flights from St Mary's (KSM)
Airlines flew 3,290 departures out of St Mary's Airport (KSM) carrying 6,118 passengers over the 12 months through April 2026. Here's what actually flew — the busiest routes, the carriers, and the aircraft — from US DOT T-100 filings.
What flies from St Mary's
US DOT T-100 · filed dataWhat airlines actually flew out of St Mary's — departures, seats, and passengers filed with the US DOT (T-100) over the trailing 12 months, not a schedule.
Departures
3,290
April 2026
Seats flown
23,989
Passengers
6,118
Load factor
25.5%
passengers ÷ seats
Busiest routes from St Mary's
Where flights from St Mary's go most, by departures over the trailing 12 months.
1,496 departures · 748 passengers
7.8%
Load
836 departures · 2,779 passengers
42.8%
Load
557 departures · 1,661 passengers
36.8%
Load
100 departures · 223 passengers
32.1%
Load
39 departures · 73 passengers
25.4%
Load
36 departures · 73 passengers
30.4%
Load
36 departures · 195 passengers
26.9%
Load
29 departures · 75 passengers
33.6%
Load
28 departures · 51 passengers
22.4%
Load
24 departures · 77 passengers
38.3%
Load
14 departures · 0 passengers
0.0%
Load
12 departures · 4 passengers
5.3%
Load
12 departures · 39 passengers
39.4%
Load
11 departures · 20 passengers
23.0%
Load
11 departures · 36 passengers
36.4%
Load
Airlines at St Mary's
Ranked by seats flown — the capacity each carrier actually operated out of St Mary's.
- K2
/ Airlift Alaska d/b/a/ Yute Commuter Service
10,578 seats · 8.5% load
44.1%
Share
- GV
Grant Aviation
6,869 seats · 48.2% load
28.6%
Share
- 6F
Fox Aircraft
4,692 seats · 34.1% load
19.6%
Share
- 7S
Ryan Air
1,101 seats · 10.3% load
4.6%
Share
- 7H
NEW PACIFIC AIRLINES
580 seats · 24.8% load
2.4%
Share
- 5V
36 seats · 25.0% load
0.2%
Share
- 8E
Bering Air
36 seats · 50.0% load
0.2%
Share
- 8V
Wright Air Service
36 seats · 0.0% load
0.2%
Share
- V8
Iliamna Air Taxi
27 seats · 7.4% load
0.1%
Share
- KAT
Katmai Air
18 seats · 27.8% load
0.1%
Share
Aircraft flown from St Mary's
Aircraft types by share of departures — what actually operated, not what's based here.
Cessna C206
1,880 departures · 9.7% load
57.1%
Share
Cessna 208 Caravan
766 departures · 45.5% load
23.3%
Share
Piper PA-31
426 departures · 35.1% load
13.0%
Share
Gipps Aero Ga8 Airvan
105 departures · 37.3% load
3.2%
Share
Cessna C208B
56 departures · 22.2% load
1.7%
Share
De Havilland DHC8-100 Dash-8
20 departures · 24.8% load
0.6%
Share
Pilatus PC-12
19 departures · 32.8% load
0.6%
Share
De Havilland DHC2 Beaver
13 departures · 0.0% load
0.4%
Share
Cessna 172 Skyhawk
4 departures · 8.3% load
0.1%
Share
Beech 1900 A
1 departures · 75.0% load
0.0%
Share
Monthly departures from St Mary's
Monthly departures from St Mary's, trailing 12 months through April 2026. Bars scale to the busiest month.
May 2025
254 departures · 564 passengers
26.6%
Load
June 2025
243 departures · 511 passengers
28.1%
Load
July 2025
308 departures · 536 passengers
24.9%
Load
August 2025
246 departures · 442 passengers
24.9%
Load
September 2025
382 departures · 826 passengers
29.2%
Load
October 2025
290 departures · 599 passengers
28.9%
Load
November 2025
221 departures · 488 passengers
29.4%
Load
December 2025
223 departures · 383 passengers
23.4%
Load
January 2026
334 departures · 472 passengers
19.8%
Load
February 2026
270 departures · 424 passengers
22.9%
Load
March 2026
348 departures · 622 passengers
24.9%
Load
April 2026
171 departures · 251 passengers
21.0%
Load
Source: US DOT Bureau of Transportation Statistics, T-100 Segment. Data through April 2026. The DOT publishes roughly three months in arrears.