Increasingly the indian rupee is crashing against the US dollar, oil prices are increasing, so many indian airlines are making losses
It appears that the prices during the peak travel season are the highest, while during the off season, the prices are fairly low.
In July 2018, it was observed that the number of fliers to goa was fairly low.
So the rates offered by the airlines were some of the best in the market, as they do not wish to lose customers to train, buses
The reason for the decline in air travelers to goa is not known.