@cneumann81 thanks for trying tripdelta. A few examples that might explain what we do differently.

-We find hidden flights by combining rival airlines (https://tripdelta.com/results/SFO/LON/28-10-15)

-Our smart area search looks at every airport near your start and destination and checks every single combination to find better alternatives (https://tripdelta.com/results/FKB/BOH/01-10-15/ )

-We split your return flights into open jaw tickets (https://tripdelta.com/results/SFO/YVR/11-09-15/YVR/SFO/13-09... )

-Wanna do a short world trip? Better check this one out (https://tripdelta.com/results/SFO/BER/18-09-15/BER/DXB/25-09...)

I hope this explains what we do ;).. If you have any more questions, let me know