Although it might not be the complete answer you're looking for, I've one tip...
Say for instance you're looking for the inbound session of the first outbound one listed in your table. In that case, do a...
"show datapath session table | include 49490"
This will match anything with that source port, which actually shows what I think you're looking for more often that not.
For example, I just did the below on one of my controllers setup similarly to what you likely will have. In this case, matching port 59211, after I looked at client 172.16.10.84 sessions...
(WLCBSA001) #show datapath session table | include 59211
172.16.10.84 67.215.65.132 6 59211 1352 0/0 0 0 1 tunnel 43 17 0 0 SYC
67.215.65.132 194.x.x.x 6 1352 59211 0/0 0 0 1 tunnel 43 17 0 0 NY
194.x.x.x is my ouside interface.