# Distance from St Mary'S (KSM) to Seattle (SEA)

> 3,017 km · estimated flight time 5h · Medium-haul route.

## Summary

- **Distance**: 3,017 km / 1,874 mi / 1,629 nm
- **Estimated flight time**: 5h
- **Heading**: 103° (east southeast)
- **Return heading**: 318° (northwest)
- **Classification**: Medium-haul
- **Type**: Domestic (United States)
- **Time difference**: +1h (When it's 23:21 in St Mary'S, it's 00:21 in Seattle)
- **Elevation difference**: 118 ft (SEA is higher than KSM)

## Airports

### [St Mary's Airport (KSM)](https://www.flightduration.online/airport/ksm-st-marys-st-marys-airport/1ef266df-8810-6b14-99ba-06bb2780ed98)

- City: St Mary'S, United States
- ICAO: PASM
- Timezone: America/Nome
- Coordinates: 62.060000, -163.300000
- Elevation: 314 ft

### [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)

- City: Seattle, United States
- ICAO: KSEA
- Timezone: America/Los_Angeles
- Coordinates: 47.450000, -122.310000
- Elevation: 432 ft

## Route notes

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

Time-zone information: When it's 23:21 in St Mary'S, it's 00:21 in Seattle.

## Related

- [St Mary's Airport (KSM)](https://www.flightduration.online/airport/ksm-st-marys-st-marys-airport/1ef266df-8810-6b14-99ba-06bb2780ed98)
- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Flight duration calculator](/#calculator)