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SKF to KEF: distance & flight time
San Antonio (Lackland Air Force Base) → Keflavik (Keflavik International Airport)
3,990 mi
6,422 km · 3,468 nm
8h 17m
estimated nonstop flight time
+5h
time difference · heading northeast
See live SKF→KEF fares Phone-only fares on this route — call free
Flight time details
3,990 miles nonstop takes roughly 8h 17m 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
- SKF — Lackland Air Force Base · San Antonio, 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 SKF
- SSF · Stinson Municipal Airport7 mi away
- SAT · San Antonio International Airport12 mi away
- RND · Randolph Air Force Base21 mi away
- AUS · Austin Bergstrom International Airport78 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 SKF from KEF?
The flight distance from San Antonio (SKF) to Keflavik (KEF) is 3,990 miles (6,422 km, 3,468 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SKF to KEF?
A nonstop flight takes about 8h 17m 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 San Antonio and Keflavik?
Keflavik is 5 hours ahead of San Antonio.
What is the cheapest way to fly from SKF to KEF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SKF–KEF that never appear on search engines, with no booking fees.