# Distance from Washington (IAD) to Portsmouth (PSM)

> 728 km · estimated flight time 2h · Short-haul route.

## Summary

- **Distance**: 728 km / 452 mi / 393 nm
- **Estimated flight time**: 2h
- **Heading**: 48° (northeast)
- **Return heading**: 233° (southwest)
- **Classification**: Short-haul
- **Type**: Domestic (United States)
- **Time difference**: +0h (When it's 03:37 in Washington, it's 03:37 in Portsmouth)
- **Elevation difference**: 212 ft (PSM is lower than IAD)

## Airports

### [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)

- City: Washington, United States
- ICAO: KIAD
- Timezone: America/New_York
- Coordinates: 38.900000, -77.500000
- Elevation: 312 ft

### [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

## Route notes

This is a short-haul route typically served by narrow-body aircraft such as the Boeing 737 or Airbus A320 family. In-flight service is usually limited to drinks and light snacks.

## Related

- [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)
- [Portsmouth International At Pease Airport (PSM)](https://www.flightduration.online/airport/psm-portsmouth-portsmouth-international-at-pease-airport/1ef266df-33b1-6488-97e8-06bb2780ed98)
- [Flight duration calculator](/#calculator)