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KEF to CYS: distance & flight time
Keflavik (Keflavik International Airport) → Cheyenne (Cheyenne Regional Jerry Olson Field)
3,489 mi
5,614 km · 3,031 nm
7h 18m
estimated nonstop flight time
-6h
time difference · heading west
See live KEF→CYS fares Phone-only fares on this route — call free
Flight time details
3,489 miles nonstop takes roughly 7h 18m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- KEF — Keflavik International Airport · Keflavik, Iceland
- CYS — Cheyenne Regional Jerry Olson Field · Cheyenne, 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 CYS
- LAR · Laramie Regional Airport46 mi away
- DEN · Denver International Airport90 mi away
- FNL · Northern Colorado Regional Airport50 mi away
- GXY · Greeley–Weld County Airport51 mi away
Frequently asked questions
How far is KEF from CYS?
The flight distance from Keflavik (KEF) to Cheyenne (CYS) is 3,489 miles (5,614 km, 3,031 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KEF to CYS?
A nonstop flight takes about 7h 18m 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 Cheyenne?
Cheyenne is 6 hours behind Keflavik.
What is the cheapest way to fly from KEF to CYS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KEF–CYS that never appear on search engines, with no booking fees.