Need help booking?
Unpublished phone-only deals available
LHR to KEF: distance & flight time
London (London Heathrow Airport) → Keflavik (Keflavik International Airport)
1,177 mi
1,895 km · 1,023 nm
3h 2m
estimated nonstop flight time
-1h
time difference · heading northwest
See live LHR→KEF fares Phone-only fares on this route — call free
Flight time details
1,177 miles nonstop takes roughly 3h 2m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- LHR — London Heathrow Airport · London, United Kingdom
- 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 LHR
- LGW · London Gatwick Airport25 mi away
- NHT · RAF Northolt6 mi away
- HYC · Wycombe Air Park18 mi away
- FAB · Farnborough Airport19 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 LHR from KEF?
The flight distance from London (LHR) to Keflavik (KEF) is 1,177 miles (1,895 km, 1,023 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LHR to KEF?
A nonstop flight takes about 3h 2m 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 London and Keflavik?
Keflavik is 1 hour behind London.
What is the cheapest way to fly from LHR to KEF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LHR–KEF that never appear on search engines, with no booking fees.