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RKS to GRF: distance & flight time
Rock Springs (Southwest Wyoming Regional Airport) → Fort Lewis (Gray Army Air Field)
766 mi
1,233 km · 666 nm
2h 8m
estimated nonstop flight time
-1h
time difference · heading northwest
See live RKS→GRF fares Phone-only fares on this route — call free
Flight time details
766 miles nonstop takes roughly 2h 8m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- RKS — Southwest Wyoming Regional Airport · Rock Springs, United States
- GRF — Gray Army Air Field · Fort Lewis, 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 RKS
- FBR · Fort Bridger Airport71 mi away
- VEL · Vernal Regional Airport83 mi away
- LND · Hunt Field86 mi away
- BPI · Miley Memorial Field87 mi away
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
Frequently asked questions
How far is RKS from GRF?
The flight distance from Rock Springs (RKS) to Fort Lewis (GRF) is 766 miles (1,233 km, 666 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RKS to GRF?
A nonstop flight takes about 2h 8m 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 Rock Springs and Fort Lewis?
Fort Lewis is 1 hour behind Rock Springs.
What is the cheapest way to fly from RKS to GRF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RKS–GRF that never appear on search engines, with no booking fees.