ANC to KSM: Distance and Flight Time
The distance from Ted Stevens Anchorage International Airport (ANC) to St Mary's Airport (KSM) is 709 km (441 mi). A typical nonstop flight covers it in about 1h 25m, heading west. The distance is the same in either direction (KSM to ANC).
How far is it from Anchorage to St Mary's?
The great-circle distance between Ted Stevens Anchorage International Airport (ANC) and St Mary's Airport (KSM) is 709 km (441 mi, 383 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from ANC to KSM?
A nonstop flight typically takes about 1h 25m. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. KSM is roughly west of ANC.
How is the ANC to KSM route written in code?
The pair is written ANC-KSM in IATA codes and PANC-PASM in ICAO codes, the form used on a flight plan. Ted Stevens Anchorage International Airport is ANC (PANC), St Mary's Airport is KSM (PASM).
| ANC | KSM | |
|---|---|---|
| Airport | Ted Stevens Anchorage International Airport | St Mary's Airport |
| ICAO code | PANC | PASM |
| Country | United States | United States |
| Elevation | 152 ft | 312 ft |
| Rank by connections | #273 | #1475 |
Both ICAO codes start with P, the prefix ICAO assigns to the eastern Pacific and Alaska, so this is a route inside one ICAO region. How ICAO prefixes are laid out.
KSM sits 160 ft (49 m) higher than ANC, which is a real difference in air density on takeoff.
Airlines flying ANC to KSM
1 airline appear on this route in the open route dataset, 1 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| 7H | Era Alaska | ERR | Erah | Active |
A further 1 carrier sell this pair as a codeshare without operating it: AS.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Anchorage from St Mary's?
Ted Stevens Anchorage International Airport (ANC) and St Mary's Airport (KSM) are 709 km (441 mi, 383 nautical miles) apart in a straight line.
How long is the flight from ANC to KSM?
A typical nonstop flight between ANC and KSM takes about 1h 25m. Actual times vary with aircraft type, winds and routing.
What direction is KSM from ANC?
St Mary's Airport (KSM) lies roughly west of Ted Stevens Anchorage International Airport (ANC).
Which airlines fly ANC to KSM?
1 airline appear on the ANC-KSM route in the open dataset, including Era Alaska.
Related routes
Other routes from Anchorage (ANC):
ANC airport code · KSM airport code · Busiest airports worldwide