Airport Comparison
| IAD | PSM | |
|---|---|---|
| Airport Name | Washington Dulles International Airport | Portsmouth International At Pease Airport |
| IATA Code | IAD | PSM |
| ICAO Code | KIAD | KPSM |
| City | Washington | Portsmouth |
| Country | United States | United States |
| Timezone | America/New_York | America/New_York |
| Elevation | 312 ft | 100 ft |
| Coordinates | 38.900000, -77.500000 | 43.080000, -70.820000 |
Washington (IAD) to Portsmouth (PSM) Flight Distance
The flight distance from Washington Dulles International Airport (IAD) in Washington, United States to Portsmouth International At Pease Airport (PSM) in Portsmouth, United States is 728 kilometers (452 miles / 393 nautical miles). The estimated flight time for this route is approximately 2h, flying northeast at a heading of 48°.
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.
This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation.
Time zone information: When it's 03:56 in Washington, it's 03:56 in Portsmouth.
The return flight from Portsmouth (PSM) to Washington (IAD) follows a heading of 233° (southwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.
For more information about these airports, visit the Washington Dulles International Airport (IAD) and Portsmouth International At Pease Airport (PSM) detail pages, or use our flight duration calculator to compare other routes.