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SPF to GRB: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Green Bay (Austin Straubel International Airport)
770 mi
1,240 km · 670 nm
2h 8m
estimated nonstop flight time
+1h
time difference · heading east
See live SPF→GRB fares Phone-only fares on this route — call free
Flight time details
770 miles nonstop takes roughly 2h 8m 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
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, 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 SPF
- RCA · Ellsworth Air Force Base41 mi away
- RAP · Rapid City Regional Airport47 mi away
- GCC · Gillette Campbell County Airport87 mi away
- CDR · Chadron Municipal Airport119 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 SPF from GRB?
The flight distance from Spearfish-South Dakota (SPF) to Green Bay (GRB) is 770 miles (1,240 km, 670 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to GRB?
A nonstop flight takes about 2h 8m 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 Spearfish-South Dakota and Green Bay?
Green Bay is 1 hour ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to GRB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–GRB that never appear on search engines, with no booking fees.