My plane will land in Kunming at 23:10. Shall I have subway or bus to get to the city ?

Although metro line 6 leads to the town, I am sorry that it will stop service at midnight. Then you can take shuttle bus line 1 to the terminus: Xiao Xi Men. The buses operate until 2:00, so you can catch it. Upon arrival, take a taxi to the hotel for around CNY 10.

Thank you Lily ! How long will be the trip, half an hour, one hour ? Would you recommend another hotel for this late arrival ?

The trip takes about 30-40 minutes. You may consider the Nanjiang Hotel at No. 241, West Dongfeng Road. It is adjacent to the Xiao Xi Men Station, so you can easily find it. Have a nice trip! :)

Thank you very much Lily, I'll think about it !