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KEF to ALN: distance & flight time
Keflavik (Keflavik International Airport) → Alton/St Louis (St Louis Regional Airport)
3,175 mi
5,110 km · 2,759 nm
6h 42m
estimated nonstop flight time
—
time difference · heading west
See live KEF→ALN fares Phone-only fares on this route — call free
Flight time details
3,175 miles nonstop takes roughly 6h 42m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- KEF — Keflavik International Airport · Keflavik, Iceland
- ALN — St Louis Regional Airport · Alton/St Louis, 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 ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Frequently asked questions
How far is KEF from ALN?
The flight distance from Keflavik (KEF) to Alton/St Louis (ALN) is 3,175 miles (5,110 km, 2,759 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KEF to ALN?
A nonstop flight takes about 6h 42m 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 cheapest way to fly from KEF to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KEF–ALN that never appear on search engines, with no booking fees.