# Distance between Redmond, OR (RDM) and Portsmouth, NH (PSM)

Flight distance from Redmond to Portsmouth (Roberts Field – Portsmouth International Airport at Pease) is 2483 miles / 3996 kilometers / 2158 nautical miles. Estimated flight time is 5 hours 12 minutes.

Driving distance from Redmond (RDM) to Portsmouth (PSM) is 3050 miles / 4908 kilometers and travel time by car is about 52 hours 11 minutes.

## Map of flight path and driving directions from Redmond to Portsmouth.

Shortest flight path between Roberts Field (RDM) and Portsmouth International Airport at Pease (PSM).

## How far is Portsmouth from Redmond?

There are several ways to calculate distances between Redmond and Portsmouth. Here are two common methods:

Vincenty's formula (applied above)
• 2483.293 miles
• 3996.473 kilometers
• 2157.923 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 2476.572 miles
• 3985.656 kilometers
• 2152.082 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

## Airport information

A Roberts Field
City: Redmond, OR
Country: United States
IATA Code: RDM
ICAO Code: KRDM
Coordinates: 44°15′14″N, 121°9′0″W

B Portsmouth International Airport at Pease
City: Portsmouth, NH
Country: United States
IATA Code: PSM
ICAO Code: KPSM
Coordinates: 43°4′40″N, 70°49′23″W

## Time difference and current local times

The time difference between Redmond and Portsmouth is 3 hours. Portsmouth is 3 hours ahead of Redmond.

PST

EST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 273 kg (602 pounds).

## Frequent Flyer Miles Calculator

Redmond (RDM) → Portsmouth (PSM).

Distance:
2483
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
2483

Round trip?