I am trying to figure a way to get from Vang Vieng to Chiang Mai. There are several options, but the option I like the best is the direct bus from Vang Vieng to Udon Thani, and then a flight from Udon Thani to Chiang Mai.
There is a cheap flight that leaves in the evenings from Udon Thani to Chiang Mai at 6:15PM. It appears that there is a direct bus that leaves Vang Vieng at 9:30 or 10:00AM. If I take this bus, will I safely make a 6:15 plane to Chiang Mai? Or is there another mode of transportation that will get me to Udon Thani earlier so I can make this flight?
Any help is appreciated.

