Anchorage (ANC) to St Mary's (KSM)
Flight time
≈ 1h 41m
Bearing
284° W
Anchorage (ANC) to St Mary's (KSM) is 441 miles (709 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ANC–KSM
US DOT T-100 · filed dataIn April 2026, Ryan Air was the only carrier flying nonstop ANC–KSM; the Cessna 208 Caravan was the most common aircraft at 100% of departures; flights ran 61% full.
Departures
2
April 2026
Seats
18
both directions
Passengers
11
both directions
Load factor
61.1%
passengers ÷ seats
Who flies ANC–KSM?
Ryan Air was the only carrier to fly nonstop ANC–KSM in April 2026 (2 departures).
- 7S
Ryan Air
2 departures · 18 seats
Share of departures100.0%61.1%
Load
What plane flies ANC–KSM?
In April 2026, the Cessna 208 Caravan flew 100% of ANC–KSM departures.
- Cessna 208 Caravan
2 departures · 61.1% load
100.0%
How has ANC–KSM traffic changed?
Nonstop ANC–KSM departures fell from 27 in May 2025 to 2 in April 2026.
Monthly nonstop ANC–KSM traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
27 departures · 179 passengers
22.9%
Load
June 2025
8 departures · 61 passengers
26.3%
Load
July 2025
2 departures · 0 passengers
0.0%
Load
August 2025
0 departures · 0 passengers
—
Load
September 2025
2 departures · 2 passengers
11.1%
Load
October 2025
0 departures · 0 passengers
—
Load
November 2025
0 departures · 0 passengers
—
Load
December 2025
2 departures · 14 passengers
77.8%
Load
January 2026
8 departures · 44 passengers
61.1%
Load
February 2026
10 departures · 51 passengers
56.7%
Load
March 2026
6 departures · 18 passengers
33.3%
Load
April 2026
2 departures · 11 passengers
61.1%
Load
By direction
The DOT files each direction separately — they rarely match.
ANC → KSM
77.8% full
1 departures · 7 passengers
KSM → ANC
44.4% full
1 departures · 4 passengers
Nonstop ANC–KSM traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Anchorage
US
Ted Stevens Anchorage International Airport
Coordinates
61.18°N, 149.99°W
Hemisphere
N · W
Frequently asked
How far is Anchorage (ANC) from St Mary's (KSM)?
ANC to KSM is 441 miles (709 km / 383 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ANC to KSM?
A nonstop covers the 441-mile great-circle distance in roughly 1h 41m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ANC–KSM?
In April 2026, the Cessna 208 Caravan flew the largest share of departures (100.0%).
What mileage do I earn flying ANC–KSM?
Distance-based programs credit off the 441-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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