Expensive oil=expensive fuel=expensive tickets...
Travel (leisure), is sort of an elastic good...people could live without it, to a certain extent...and if the prices are high, the demand will probably slump
Now, with that said, if the war is a prolonged effort, with other players being drawn in...there may be a further need for more pilots, to cover for those that die in the conflict...which in turn may level out the field for the furloughees...???
I don't know, how was it during GW1?