Hello, my flight arrives to Kunming Airport at 21:25.

I want to catch a night train to Dali which departs at 23:55 at the KM Railway Station.

As the Coach line 6 stops operating at 21:30, is it worth to take the subway to the KM Railway Station? I heard I would have to walk a little, and I don't want to be late. Should I take a taxi better?

And also, should I prebook the night train or is it fine if I just take the ticket once I arrive to the Train Station?

Thanks for your advice!