Flights from London Heathrow to Reykjavik Keflavik

Our cheapest offers for flights from London Heathrow to Reykjavik Keflavik

Here you can compare cheap flights from London Heathrow (LHR) to Reykjavik Keflavik (KEF) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Reykjavik Keflavik. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
London Heathrow
Reykjavik-Keflavik
Outbound
15/09/25
1 Stopover (OSL)
SK0802, SK4785
06h 05min
Return
-
SAS Scandinavian Airlines
£409
Best option
London Heathrow
Reykjavik-Keflavik
Outbound
08/12/25
direct
BA0894
03h 20min
Return
24/12/25
direct
BA0895
03h 10min
British Airways
£188
London Heathrow
Reykjavik-Keflavik
Outbound
08/12/25
1 Stopover (CPH)
SK1508, SK0595
15h 15min
Return
24/12/25
1 Stopover (CPH)
SK0596, SK1501
10h 10min
SAS Scandinavian Airlines
£237
London Heathrow
Reykjavik-Keflavik
Outbound
08/12/25
direct
BA0894
03h 20min
Return
24/12/25
direct
BA0895
03h 10min
British Airways
£190
London Heathrow
Reykjavik-Keflavik
Outbound
08/12/25
direct
BA0894
03h 20min
Return
24/12/25
direct
BA0895
03h 10min
British Airways
£198
London Heathrow
Reykjavik-Keflavik
Outbound
08/12/25
direct
BA0894
03h 20min
Return
24/12/25
direct
BA0895
03h 10min
British Airways
£200
London Heathrow
Reykjavik-Keflavik
Outbound
08/12/25
1 Stopover (CPH)
SK1508, SK0595
15h 15min
Return
24/12/25
1 Stopover (CPH)
SK0596, SK1501
10h 10min
SAS Scandinavian Airlines ?
£209
London Heathrow
Reykjavik-Keflavik
Outbound
28/08/25
1 Stopover (OSL)
SK0812, SK4787
12h 15min
Return
04/09/25
1 Stopover (OSL)
SK4788, SK0815
09h 30min
SAS Scandinavian Airlines
£210
found 3 days ago
London Heathrow
Reykjavik-Keflavik
Outbound
28/08/25
1 Stopover (OSL)
SK0810, SK4787
14h 35min
Return
04/09/25
1 Stopover (OSL)
SK4788, SK0811
06h 45min
SAS Scandinavian Airlines
£212
found 3 days ago
London Heathrow
Reykjavik-Keflavik
Outbound
28/08/25
1 Stopover (OSL)
SK0810, SK4787
14h 35min
Return
04/09/25
1 Stopover (OSL)
SK4788, SK0815
09h 30min
SAS Scandinavian Airlines
£214
found 3 days ago
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London Heathrow to Reykjavik Keflavik

Favourite airline: British Airways
Most travellers looking for flights on the route from London Heathrow to Reykjavik-Keflavik decide to book with British Airways.
British Airways
51 %
Icelandair
27 %
SAS
12 %
Cheapest weekday: Saturday
On this route, flights are cheapest on Saturday when a ticket costs £157.00 on average.
Direct flights are cheaper
Flights with a stopover are on average £94.00 more expensive than direct flights.
non stop flight
1 stop
2 stops
03h 05min
28h 20min
17h 35min
£157
£251
£589
The favourite connection is non-stop
Direct flights are especially popular on this route. 85 % of travellers will book a non-stop flight.
Route
bookings
Direct flights
03h 05min, from £157
85 %
1 stopover Copenhagen
14h 15min, from £317
7 %
1 stopover Oslo-Gardermoen
28h 20min, from £251
5 %

Important flight information

Flight information: London Heathrow - Reykjavik-Keflavik

Cheapest outbound flight from £408.01
Outbound and return from £187.99
Flight duration min. 03:10 / max. 03:15
Return flight duration min. 03:05/ max. 03:20
Distance 1897 km
Flights per week 29
Departure airport Airport London Heathrow (LHR)
Arrival airport Airport Reykjavik-Keflavik International (KEF)
Destination country Flights to Iceland
Alternative flights to Reykjavik-Keflavik
Flight destinations with a similar price