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DEN to KEF: distance & flight time
Denver (Denver International Airport) → Keflavik (Keflavik International Airport)
3,559 mi
5,727 km · 3,092 nm
7h 27m
estimated nonstop flight time
+6h
time difference · heading northeast
See live DEN→KEF fares Phone-only fares on this route — call free
Flight time details
3,559 miles nonstop takes roughly 7h 27m 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
- DEN — Denver International Airport · Denver, 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 DEN
- BFK · Buckley Air Force Base12 mi away
- APA · Centennial Airport22 mi away
- BJC · Rocky Mountain Metropolitan Airport24 mi away
- WBU · Boulder Municipal Airport32 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 DEN from KEF?
The flight distance from Denver (DEN) to Keflavik (KEF) is 3,559 miles (5,727 km, 3,092 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEN to KEF?
A nonstop flight takes about 7h 27m 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 Denver and Keflavik?
Keflavik is 6 hours ahead of Denver.
What is the cheapest way to fly from DEN to KEF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEN–KEF that never appear on search engines, with no booking fees.