The contributors of Flight-Report published 4 reviews on 2 airlines on the route London - Heathrow (LHR) → Reykjavík - Keflavík Airport (KEF). The airline with the best average rating is Icelandair with 7.3/10. The average flight time is 2 hours and 55 minutes.
Airlines on this route are:
Frequent travelers recommend "Aer Lingus Gold Circle Lounge" at LHR for comfort and services.
London has an another airport to go to Reykjavík : London - Gatwick (LGW)