# Distance from Portsmouth (PSM) to St Louis (STL)

> 1,707 km · estimated flight time 3h · Medium-haul route.

## Summary

- **Distance**: 1,707 km / 1,061 mi / 922 nm
- **Estimated flight time**: 3h
- **Heading**: 260° (west)
- **Return heading**: 67° (east northeast)
- **Classification**: Medium-haul
- **Type**: Domestic (United States)
- **Time difference**: -1h (When it's 04:17 in Portsmouth, it's 03:17 in St Louis)
- **Elevation difference**: 517 ft (STL is higher than PSM)

## Airports

### [Portsmouth International At Pease Airport (PSM)](https://www.flightduration.online/airport/psm-portsmouth-portsmouth-international-at-pease-airport/1ef266df-33b1-6488-97e8-06bb2780ed98)

- City: Portsmouth, United States
- ICAO: KPSM
- Timezone: America/New_York
- Coordinates: 43.080000, -70.820000
- Elevation: 100 ft

### [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)

- City: St Louis, United States
- ICAO: KSTL
- Timezone: America/Chicago
- Coordinates: 38.750000, -90.370000
- Elevation: 617 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 04:17 in Portsmouth, it's 03:17 in St Louis.

## Related

- [Portsmouth International At Pease Airport (PSM)](https://www.flightduration.online/airport/psm-portsmouth-portsmouth-international-at-pease-airport/1ef266df-33b1-6488-97e8-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)