Need help booking?
Unpublished phone-only deals available
SPF to KEF: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Keflavik (Keflavik International Airport)
3,271 mi
5,264 km · 2,842 nm
6h 53m
estimated nonstop flight time
+6h
time difference · heading northeast
See live SPF→KEF fares Phone-only fares on this route — call free
Flight time details
3,271 miles nonstop takes roughly 6h 53m 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
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, 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 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 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 SPF from KEF?
The flight distance from Spearfish-South Dakota (SPF) to Keflavik (KEF) is 3,271 miles (5,264 km, 2,842 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to KEF?
A nonstop flight takes about 6h 53m 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 Keflavik?
Keflavik is 6 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to KEF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–KEF that never appear on search engines, with no booking fees.