I'm looking at flights from Hanoi to Mumbai in Jan '23. VietJet Air looks to be the only direct flight between the two cities. From the VietJet website and Google flights, it looks like VietJet flies that route directly Mon/Wed/Fri for $196/pp in Deluxe throughout November and December, but the price significantly rises starting 1/1/24 (to $487/pp). Even prior to November, prices seem to be <$200/pp but starting in Jan they rise to >$400/pp. Is it likely that the price will change to reflect how it is throughout Nov and Dec? Is it just too far in advance to book for a good price?