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GRF to IDA: distance & flight time
Fort Lewis (Gray Army Air Field) → Idaho Falls (Idaho Falls Regional Airport)
566 mi
912 km · 492 nm
1h 42m
estimated nonstop flight time
+1h
time difference · heading east
See live GRF→IDA fares Phone-only fares on this route — call free
Flight time details
566 miles nonstop takes roughly 1h 42m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- GRF — Gray Army Air Field · Fort Lewis, United States
- IDA — Idaho Falls Regional Airport · Idaho Falls, 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 IDA
- PIH · Pocatello Regional Airport49 mi away
- JAC · Jackson Hole Airport67 mi away
- WYS · Yellowstone Airport94 mi away
- BYI · Burley Municipal Airport109 mi away
Frequently asked questions
How far is GRF from IDA?
The flight distance from Fort Lewis (GRF) to Idaho Falls (IDA) is 566 miles (912 km, 492 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRF to IDA?
A nonstop flight takes about 1h 42m 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 Idaho Falls?
Idaho Falls is 1 hour ahead of Fort Lewis.
What is the cheapest way to fly from GRF to IDA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRF–IDA that never appear on search engines, with no booking fees.