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GRB to WBU: distance & flight time
Green Bay (Austin Straubel International Airport) → Boulder (Boulder Municipal Airport)
924 mi
1,488 km · 803 nm
2h 29m
estimated nonstop flight time
-1h
time difference · heading west
See live GRB→WBU fares Phone-only fares on this route — call free
Flight time details
924 miles nonstop takes roughly 2h 29m gate to gate, flying west. 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
- GRB — Austin Straubel International Airport · Green Bay, United States
- WBU — Boulder Municipal Airport · Boulder, 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 GRB
- ATW · Appleton International Airport25 mi away
- OSH · Wittman Regional Airport41 mi away
- MNM · Menominee Regional Airport50 mi away
- SBM · Sheboygan County Memorial Airport51 mi away
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
Frequently asked questions
How far is GRB from WBU?
The flight distance from Green Bay (GRB) to Boulder (WBU) is 924 miles (1,488 km, 803 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRB to WBU?
A nonstop flight takes about 2h 29m 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 Green Bay and Boulder?
Boulder is 1 hour behind Green Bay.
What is the cheapest way to fly from GRB to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRB–WBU that never appear on search engines, with no booking fees.