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FNL to GRB: distance & flight time
Fort Collins (Northern Colorado Regional Airport) → Green Bay (Austin Straubel International Airport)
902 mi
1,452 km · 784 nm
2h 26m
estimated nonstop flight time
+1h
time difference · heading northeast
See live FNL→GRB fares Phone-only fares on this route — call free
Flight time details
902 miles nonstop takes roughly 2h 26m gate to gate, flying northeast. 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
- FNL — Northern Colorado Regional Airport · Fort Collins, United States
- GRB — Austin Straubel International Airport · Green Bay, 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 FNL
- DEN · Denver International Airport45 mi away
- GXY · Greeley–Weld County Airport20 mi away
- WBU · Boulder Municipal Airport31 mi away
- BJC · Rocky Mountain Metropolitan Airport38 mi away
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
Frequently asked questions
How far is FNL from GRB?
The flight distance from Fort Collins (FNL) to Green Bay (GRB) is 902 miles (1,452 km, 784 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FNL to GRB?
A nonstop flight takes about 2h 26m 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 Collins and Green Bay?
Green Bay is 1 hour ahead of Fort Collins.
What is the cheapest way to fly from FNL to GRB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FNL–GRB that never appear on search engines, with no booking fees.