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WBU to FSI: distance & flight time
Boulder (Boulder Municipal Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
528 mi
850 km · 459 nm
1h 37m
estimated nonstop flight time
+1h
time difference · heading southeast
See live WBU→FSI fares Phone-only fares on this route — call free
Flight time details
528 miles nonstop takes roughly 1h 37m gate to gate, flying southeast. 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
- WBU — Boulder Municipal Airport · Boulder, United States
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, 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 FSI
- LAW · Lawton Fort Sill Regional Airport6 mi away
- DUC · Halliburton Field28 mi away
- HBR · Hobart Regional Airport44 mi away
- SPS · Sheppard Air Force Base-Wichita Falls Municipal Airport46 mi away
Frequently asked questions
How far is WBU from FSI?
The flight distance from Boulder (WBU) to Fort Sill (FSI) is 528 miles (850 km, 459 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to FSI?
A nonstop flight takes about 1h 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 Sill?
Fort Sill is 1 hour ahead of Boulder.
What is the cheapest way to fly from WBU to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–FSI that never appear on search engines, with no booking fees.