i suggest you hold off on ticketing as long as possible because the 3p and 4:35p flights are on different airlines and i really think you'll be able to make the earlier flight. if the flights aren't heavily booked, you should have no problem buying a ticket at the airport or from a ta in wuhan. btw, in order to get discounts greater than 20%, it's usually necessary to buy your tickets from your departing city (either airline office or TA). however, last i checked, both flights were closed out of the cheaper inventories (that will probably change closer to your day of travel, but there is no guarantee).