Need help booking?
Unpublished phone-only deals available
WBU to GRF: distance & flight time
Boulder (Boulder Municipal Airport) → Fort Lewis (Gray Army Air Field)
993 mi
1,598 km · 863 nm
2h 37m
estimated nonstop flight time
-1h
time difference · heading northwest
See live WBU→GRF fares Phone-only fares on this route — call free
Flight time details
993 miles nonstop takes roughly 2h 37m 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
- WBU — Boulder Municipal Airport · Boulder, 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 WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 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 WBU from GRF?
The flight distance from Boulder (WBU) to Fort Lewis (GRF) is 993 miles (1,598 km, 863 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to GRF?
A nonstop flight takes about 2h 37m 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 Boulder and Fort Lewis?
Fort Lewis is 1 hour behind Boulder.
What is the cheapest way to fly from WBU to GRF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–GRF that never appear on search engines, with no booking fees.