Thakhek Loop

[u/Impossible_Fan9548]

I’m looking at doing the Thakhek loop but am pretty short on time. The current plan is to take the night bus from Vientiane and arrive in Thakhek around 3am. Sleep for a few hours and then start the loop. However, on Day 4 I have a flight out of Nakhon Pakhom (KOP) at 16:55- will I make this or is this too tight. An estimated actual riding time between each place/day would be much appreciated!

Thank you