Bethel (BET) to St Mary's (KSM)
Flight time
≈ 1h 00m
Bearing
332° NW
Bethel (BET) to St Mary's (KSM) is 101 miles (162 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BET–KSM
Filed traffic dataIn June 2026, Grant Aviation operated the most departures, one of 5 carriers flying nonstop BET–KSM; the Cessna C206 was the most common aircraft at 48% of departures; flights ran 41% full.
Departures
147
June 2026
Seats
1,079
both directions
Passengers
447
both directions
Load factor
41.4%
RPM ÷ ASM
Who flies BET–KSM?
Grant Aviation operated the most nonstop BET–KSM departures in June 2026 (72), one of 5 carriers on the route.
- GV
Grant Aviation
72 departures · 591 seats
Share of departures49.0%54.5%
Load
- K2
Yute Commuter Service
43 departures · 281 seats
Share of departures29.3%24.2%
Load
- 6F
Fox Aircraft
28 departures · 195 seats
Share of departures19.0%28.7%
Load
- 7S
Ryan Air
3 departures · 6 seats
Share of departures2.0%0.0%
Load
- 3AQ
Maritime Helicopters
1 departures · 6 seats
Share of departures0.7%16.7%
Load
What plane flies BET–KSM?
In June 2026, the Cessna C206 flew 48% of BET–KSM departures — more than any other aircraft type.
- Cessna C206
70 departures · 26.7% load
47.6% - Cessna 208 Caravan
56 departures · 55.8% load
38.1% - Piper PA-31
10 departures · 25.6% load
6.8% - Gipps Aero Ga8 Airvan
9 departures · 48.1% load
6.1% - Bht 206 L4 Long Ranger
1 departures · 16.7% load
0.7% - Cessna C208B
1 departures · 55.6% load
0.7%
How has BET–KSM traffic changed?
Nonstop BET–KSM departures rose from 146 in July 2025 to 147 in June 2026.
Monthly nonstop BET–KSM traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
146 departures · 517 passengers
45.1%
Load
August 2025
153 departures · 534 passengers
44.0%
Load
September 2025
250 departures · 912 passengers
46.9%
Load
October 2025
177 departures · 653 passengers
47.0%
Load
November 2025
121 departures · 471 passengers
48.6%
Load
December 2025
121 departures · 402 passengers
41.5%
Load
January 2026
131 departures · 406 passengers
39.2%
Load
February 2026
116 departures · 284 passengers
34.3%
Load
March 2026
168 departures · 478 passengers
38.6%
Load
April 2026
69 departures · 133 passengers
26.1%
Load
May 2026
163 departures · 468 passengers
38.2%
Load
June 2026
147 departures · 447 passengers
41.4%
Load
By direction
Each direction is filed separately — they rarely match.
BET → KSM
39.7% full
81 departures · 232 passengers
KSM → BET
43.4% full
66 departures · 215 passengers
Nonstop BET–KSM traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Bethel (BET) from St Mary's (KSM)?
BET to KSM is 101 miles (162 km / 88 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BET to KSM?
A nonstop covers the 101-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 BET–KSM?
In June 2026, the Cessna C206 flew the largest share of departures (47.6%), followed by the Cessna 208 Caravan (38.1%).
What mileage do I earn flying BET–KSM?
Distance-based programs credit off the 101-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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