The contributors of Flight-Report published 3 reviews on 1 airlines on the route London - London Stansted (STN) → Cologne - Cologne Bonn (CGN). The airline with the best average rating is Ryanair with 5.9/10. The average flight time is 1 hours and 38 minutes.
Airlines on this route are:
London has an another airport to go to Cologne : London - Gatwick (LGW)