I am travelling northern Thailand in July with a Thai friend who needs to get back to work by the 24th, so I was going to buy him a seat on a domestic out of Chiang Rai to Bangkok on the 23rd. As I am out of the country, I am guessing he will have to buy the ticket himself given ID, Thai name etc. I know nothing about domestic flights in Thailand - their reliability in terms of last minute cancellations or how heavily booked they will be at that time of year. Looking for some advice.
TLDR : Answer Summary
Traveling in northern Thailand with a Thai friend in July, who needs to return to work, raises questions about booking a domestic flight from Chiang Rai to Bangkok. Several expats suggest that booking domestic flights in Thailand is straightforward, with many airlines operating multiple flights daily. It's advised that the friend books the ticket himself for ease, using apps or websites like Thai Airways, AirAsia, or Traveloka. Minor cancellations are rare, and flight availability is generally high, although weekends and holidays may see fuller airlines. Providing necessary ID details and confirming the airport is crucial for smooth booking.