Need help booking?
Unpublished phone-only deals available
GRF to PSM: distance & flight time
Fort Lewis (Gray Army Air Field) → Portsmouth (Portsmouth International at Pease Airport)
2,494 mi
4,014 km · 2,167 nm
5h 21m
estimated nonstop flight time
+3h
time difference · heading east
See live GRF→PSM fares Phone-only fares on this route — call free
Flight time details
2,494 miles nonstop takes roughly 5h 21m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- GRF — Gray Army Air Field · Fort Lewis, United States
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near GRF
- SEA · Seattle Tacoma International Airport29 mi away
- TCM · McChord Air Force Base6 mi away
- TIW · Tacoma Narrows Airport13 mi away
- OLM · Olympia Regional Airport17 mi away
Near PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 mi away
Frequently asked questions
How far is GRF from PSM?
The flight distance from Fort Lewis (GRF) to Portsmouth (PSM) is 2,494 miles (4,014 km, 2,167 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRF to PSM?
A nonstop flight takes about 5h 21m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Fort Lewis and Portsmouth?
Portsmouth is 3 hours ahead of Fort Lewis.
What is the cheapest way to fly from GRF to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRF–PSM that never appear on search engines, with no booking fees.