Atmautluak (ATT) to St Mary's (KSM)
Flight time
≈ 0h 59m
Bearing
338° N
Atmautluak (ATT) to St Mary's (KSM) is 89 miles (144 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ATT–KSM
US DOT T-100 · filed dataIn March 2026, / Airlift Alaska d/b/a/ Yute Commuter Service was the only carrier flying nonstop ATT–KSM; the Cessna C206 was the most common aircraft at 100% of departures; flights ran 0% full.
Departures
1
March 2026
Seats
6
both directions
Passengers
0
both directions
Load factor
0.0%
passengers ÷ seats
Who flies ATT–KSM?
/ Airlift Alaska d/b/a/ Yute Commuter Service was the only carrier to fly nonstop ATT–KSM in March 2026 (1 departures).
- K2
/ Airlift Alaska d/b/a/ Yute Commuter Service
1 departures · 6 seats
Share of departures100.0%0.0%
Load
What plane flies ATT–KSM?
In March 2026, the Cessna C206 flew 100% of ATT–KSM departures.
- Cessna C206
1 departures · 0.0% load
100.0%
How has ATT–KSM traffic changed?
Nonstop ATT–KSM departures fell from 4 in May 2025 to 1 in March 2026.
Monthly nonstop ATT–KSM traffic, trailing 12 months through March 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
4 departures · 0 passengers
0.0%
Load
June 2025
1 departures · 2 passengers
33.3%
Load
July 2025
2 departures · 0 passengers
0.0%
Load
August 2025
2 departures · 0 passengers
0.0%
Load
September 2025
4 departures · 0 passengers
0.0%
Load
October 2025
2 departures · 1 passengers
14.3%
Load
November 2025
7 departures · 0 passengers
0.0%
Load
December 2025
0 departures · 0 passengers
—
Load
January 2026
3 departures · 0 passengers
0.0%
Load
February 2026
2 departures · 0 passengers
0.0%
Load
March 2026
1 departures · 0 passengers
0.0%
Load
Nonstop ATT–KSM traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through March 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Atmautluak (ATT) from St Mary's (KSM)?
ATT to KSM is 89 miles (144 km / 78 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ATT to KSM?
A nonstop covers the 89-mile great-circle distance in roughly 0h 59m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ATT–KSM?
In March 2026, the Cessna C206 flew the largest share of departures (100.0%).
What mileage do I earn flying ATT–KSM?
Distance-based programs credit off the 89-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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