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FCS to KEF: distance & flight time
Fort Carson (Butts AAF (Fort Carson) Air Field) → Keflavik (Keflavik International Airport)
3,629 mi
5,841 km · 3,154 nm
7h 35m
estimated nonstop flight time
+6h
time difference · heading northeast
See live FCS→KEF fares Phone-only fares on this route — call free
Flight time details
3,629 miles nonstop takes roughly 7h 35m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- FCS — Butts AAF (Fort Carson) Air Field · Fort Carson, United States
- KEF — Keflavik International Airport · Keflavik, Iceland
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 FCS
- COS · City of Colorado Springs Municipal Airport9 mi away
- PUB · Pueblo Memorial Airport30 mi away
- DEN · Denver International Airport82 mi away
- APA · Centennial Airport62 mi away
Near KEF
- RKV · Reykjavik Airport22 mi away
- GUU · Grundarfjörður Airport72 mi away
- VEY · Vestmannaeyjar Airport81 mi away
- PFJ · Patreksfjörður Airport116 mi away
Frequently asked questions
How far is FCS from KEF?
The flight distance from Fort Carson (FCS) to Keflavik (KEF) is 3,629 miles (5,841 km, 3,154 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FCS to KEF?
A nonstop flight takes about 7h 35m 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 Carson and Keflavik?
Keflavik is 6 hours ahead of Fort Carson.
What is the cheapest way to fly from FCS to KEF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FCS–KEF that never appear on search engines, with no booking fees.