ill definitely defer to JotaJota's scheduling answer as I have only been online for <2 months. CAN to Thailand is easy. I go there a lot. Thai Airways and China Southern are both Star Alliance (orbitz.com). You can fly to Bangkok and get a good connection (usually under 2 hours) to anywhere in Thailand. The company reimburses 10k per year in travel expenses. The company travel, including Hainan Airlines, is not very useful for the pilots I know. You can jumpseat unlimited on Hainan and Capitol, but again it is only domestic and not a lot of frequency.
Depending on where you want to go, you can also take a bus to the HK airport. More flights at half the price of GZ.