Passengers can buy or exchange points for seats with extra legroom such as the front rows or the emergency exit rows.
Passengers will get a 20% discount off if pay for excess or oversized baggage in advance.
Passengers taking Hainan airlines non-stop flight from Beijing to Haikou/
Shenzhen/Guangzhou/Sanya, from Haikou to Beijing, from Xi'an to Pairs/Roman/
Sydney/Melbourne are allowed to book meals in advance.