Oil price is decreasing 5 times than previous ? will that cause to decrease plane fare?

The decrease of oil fare is certainly a good news for plane travellers.Thats is a good news not because the air ticket fare will be decreased , but the bunker adjustment factor would hopefully be reduced. That may sounds confusing to you and I will explain it a bit.
Airline pricing strategy is complicated and it don't just simply change according to the oil price which is the cost.For example , Delta airline generally would drop their ticket fees on Tuesday but then raise a bit on Thursday with the reason behind has nothing to do with the cost but the amount of passenger travel. So the flight ticket may not be cheaper , and in most of the time , since airlines ( e.g. Cathay Pacific ) will buy oils future contract , the drop of oil price do lower their cost , but the effect won't be really acting the airliners to lower the ticket fees.

However as a traveller , you don't just pay for the ticket ,you have to pay a bunch of tax and additional fees which actually a big part of the money you paid.The decrease in oil price may eventually allows airline to lower their BAF and so a traveller may pay lesser at the end.

As a conclusion , oil price decreasing is a good thing for plane travellers and the airliners but plane ticket may be still expensive.