Cheap flights from London to Keflavík (LHR–KEF)
United Kingdom
Iceland
British Airways and Icelandair fly London to Keflavík (LHR–KEF) nonstop and back, a great-circle distance of 1,900 km (1,180 mi).
Compare all 2 London–Keflavík airport pairs
- From
- LHR
- London
- To
- KEF
- Keflavík
- Nonstop
- Yes · 2 airlines
- Airlines
- BA · FI
- Cheapest fare found
- £76 one-way
- Distance
- 1,900 km (1,180 mi)
- Time difference
- Keflavík 1 hour behind
- Most flights
- Icelandair
- Time in the air
- 2h 32m · 2h 36m back
- On time (Touchdown Index)
- 87.3%
- Flights a week
- BA ~6 · FI ~12
- Aircraft seen
- Airbus A320neo · Boeing 767-300 · Airbus A321neo
Checked against sources:· How we verify
London to Keflavík fares by month
Cheapest one-way fare found: £76 for December 2026 on Icelandair, nonstop. Nonstop from £76.
- Oct ’26£113nonstop £150
- Nov ’26£84
- Dec ’26£76
- Jan ’27£88
- Apr ’27£194
- May ’27£163
- Jun ’27£131
- Jul ’27£193nonstop £219
Cheapest one-way fares per month of departure in the Aviasales price cache, found . Fares change by the hour: the live fare is shown when you search.
When to fly LHR–KEF
For London Heathrow (LHR) to Keflavík (KEF), December 2026 had the lowest fare found (£76). Set your watch 1 hour back on landing at KEF.
London to Keflavík: frequently asked questions
Fares: Aviasales price cache, 8 October 2026; tracked flights between 6 September and 3 October 2026, from public ADS-B data.
How much is a flight from London Heathrow (LHR) to Keflavík (KEF)?
From £76 one-way, the cheapest fare found for December 2026 on Icelandair, nonstop; nonstop from £76 (found 8 October 2026).
How long is the LHR–KEF flight?
2h 32m wheels-up to wheels-down, the median of 68 tracked flights; KEF–LHR took 2h 36m.
Which airlines fly LHR–KEF direct?
British Airways and Icelandair.
What is the cheapest month to fly LHR–KEF?
December 2026, at £76; the dearest month found was £194.
What is the time difference between London and Keflavík?
Keflavík is 1 hour behind London: a LHR departure at noon is 11:00 local time in KEF.
Is LHR–KEF usually on time?
87.3% of 142 LHR–KEF flights landed within 15 minutes of their usual time; 1.4% were over an hour late.
How many LHR–KEF flights a week?
British Airways 6 and Icelandair 12 each way.
What aircraft fly LHR–KEF?
Airbus A320neo, Boeing 767-300 and Airbus A321neo.
Keflavík to London: the return flight (KEF–LHR)
All 2 airlines also fly KEF–LHR nonstop.
The return takes 2h 36m in the air (median of 72 tracked flights).
Airlines flying LHR–KEF nonstop
| Airline | Usually takes off (LHR time) | Type | Alliance | Notes |
|---|---|---|---|---|
 British Airways BA | 07:35–08:08 | full-service | oneworld | — |
 Icelandair FI | 13:22–21:53 | full-service | — | — |
One-stop alternatives to flying LHR–KEF nonstop
One airline on both legs; check it's sold as one ticket.
- Via Düsseldorf (DUS) with
Eurowings: 2,710 km (1,690 mi) flown, 43% further than nonstop.
LHR–KEF route map
More from London and Keflavík
Explore the airlines’ route maps
Departure
London Heathrow Airport
Heathrow (LHR), London. In our data, 81 airlines fly nonstop from LHR to 213 destinations.
View LHR airport guide →Arrival
Keflavik International Airport
2 ways into Keflavík, fastest from 45 min:
- Flybus 45 min–1h · 3,899–4,999 ISK
- Strætó bus 55 1h–1h 20m · 2,400 ISK
Weather in Keflavík vs London
Keflavík is cooler than London in every month, by 5–10°C; the biggest gap is in June (13°C against 22°C). In October it averages 8°C in Keflavík and 16°C in London.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Keflavík | 3° | 3° | 4° | 7° | 10° | 13° | 14° | 14° | 11° | 8° | 5° | 4° |
| London | 9° | 9° | 12° | 16° | 19° | 22° | 24° | 23° | 21° | 16° | 12° | 9° |
Average daily highs. Climate normals from Keflavík and Climate of London (Wikipedia, CC BY-SA), which cite the national weather services.
Other nonstop airport pairs, London to Keflavík
London and Keflavík are connected nonstop from more than one airport. Compare the pairs by airline count:
Onward from Keflavík
Places you can't fly to nonstop from LHR, but can from KEF — for a stopover or a second leg.
Related routes
Sources
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- mediacentre.britishairways.com — Gatwick–Bangkok year-round from 2026
- en.wikipedia.org — current destination list, cross-checked 2026-09-25 (terminated routes removed)
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
Flight tracking: adsb.lol community ADS-B data (CC0), 6 September – 3 October 2026. Times are median wheels-up to wheels-down; add taxiing for gate-to-gate.
Report a change — seen something different at the airport or on the airline's site? We re-check and log corrections publicly.