Akiachak (KKI) to St Mary's (KSM)
Flight time
≈ 1h 00m
Bearing
324° NW
Akiachak (KKI) to St Mary's (KSM) is 99 miles (160 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies KKI–KSM
US DOT T-100 · filed dataIn September 2025, Ryan Air was the only carrier flying nonstop KKI–KSM; the Cessna C206 was the most common aircraft at 100% of departures; flights ran 20% full.
Departures
1
September 2025
Seats
5
both directions
Passengers
1
both directions
Load factor
20.0%
passengers ÷ seats
Who flies KKI–KSM?
Ryan Air was the only carrier to fly nonstop KKI–KSM in September 2025 (1 departures).
- 7S
Ryan Air
1 departures · 5 seats
Share of departures100.0%20.0%
Load
What plane flies KKI–KSM?
In September 2025, the Cessna C206 flew 100% of KKI–KSM departures.
- Cessna C206
1 departures · 20.0% load
100.0%
How has KKI–KSM traffic changed?
Nonstop KKI–KSM departures held steady at about 1 a month between May 2025 and September 2025.
Monthly nonstop KKI–KSM traffic, trailing 12 months through September 2025. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
1 departures · 0 passengers
0.0%
Load
June 2025
0 departures · 0 passengers
—
Load
July 2025
0 departures · 0 passengers
—
Load
August 2025
0 departures · 0 passengers
—
Load
September 2025
1 departures · 1 passengers
20.0%
Load
Nonstop KKI–KSM traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through September 2025; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Akiachak (KKI) from St Mary's (KSM)?
KKI to KSM is 99 miles (160 km / 86 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from KKI to KSM?
A nonstop covers the 99-mile great-circle distance in roughly 1h 00m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies KKI–KSM?
In September 2025, the Cessna C206 flew the largest share of departures (100.0%).
What mileage do I earn flying KKI–KSM?
Distance-based programs credit off the 99-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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