1 piece checkin luggage only
Terrible experience with Hainan airlines. Their checkin luggage allowance is limited to 1 piece rather than total weight. I wanted to checkin a small suitcase (12kg) and a bag (7kg) and was rejected. They said that I can only check-in 1 item and if I want to checkin both I need to pay ¥1500 (equivalent to £160) for additional luggage. This is very mean for long-haul international flights of 11.5 hours. This reminds me of Ryanair's luggage policy.