Nope. You can use NWA.com for most KL/AF/NW flights. CO is pretty good for CO/CM/CS, and they have some AF as well. OK can be searched with seatcounter.com, KVS or ExpertFlyer. KVS also will put a different UI on the NWA.com search. KE, SU and the others are not searchable through any interface that I know of.