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CSM to KEF: distance & flight time
Clinton (Clinton Sherman Airport) → Keflavik (Keflavik International Airport)
3,657 mi
5,886 km · 3,178 nm
7h 38m
estimated nonstop flight time
+5h
time difference · heading northeast
See live CSM→KEF fares Phone-only fares on this route — call free
Flight time details
3,657 miles nonstop takes roughly 7h 38m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- CSM — Clinton Sherman Airport · Clinton, 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 CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 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 CSM from KEF?
The flight distance from Clinton (CSM) to Keflavik (KEF) is 3,657 miles (5,886 km, 3,178 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CSM to KEF?
A nonstop flight takes about 7h 38m 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 Clinton and Keflavik?
Keflavik is 5 hours ahead of Clinton.
What is the cheapest way to fly from CSM to KEF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CSM–KEF that never appear on search engines, with no booking fees.