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KEF to GRB: distance & flight time
Keflavik (Keflavik International Airport) → Green Bay (Austin Straubel International Airport)
2,805 mi
4,514 km · 2,437 nm
5h 58m
estimated nonstop flight time
-5h
time difference · heading west
See live KEF→GRB fares Phone-only fares on this route — call free
Flight time details
2,805 miles nonstop takes roughly 5h 58m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- KEF — Keflavik International Airport · Keflavik, Iceland
- 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 KEF
- RKV · Reykjavik Airport22 mi away
- GUU · Grundarfjörður Airport72 mi away
- VEY · Vestmannaeyjar Airport81 mi away
- PFJ · Patreksfjörður Airport116 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 KEF from GRB?
The flight distance from Keflavik (KEF) to Green Bay (GRB) is 2,805 miles (4,514 km, 2,437 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KEF to GRB?
A nonstop flight takes about 5h 58m 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 Keflavik and Green Bay?
Green Bay is 5 hours behind Keflavik.
What is the cheapest way to fly from KEF to GRB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KEF–GRB that never appear on search engines, with no booking fees.