Afterwords

I wonder how the Ajira crew did after leaving the island. How do you explain being in an airplane that disappeared, and now having passengers that weren't in the original Ajira flight to begin with. Plus, having a couple passengers from the famous 815 flight. Not to mention ones that were supposed to have died according to the Oceanic 6 survivors story. I would imagine they got into some issues after finding an airport to land in. Which must have raised slot of questions also.