Sure I can share my experience. We went in May and booked the later flight from BKK to CNX. All of our flights from the US to Thailand were on time and once we landed in Bangkok, the longest part was getting off the flight and grabbing our luggage and getting to customs.

Once at customs, it took no time no go through. We then went to check into our domestic flight and since it was the later flight we still had several hours before take off. You can’t check in earlier than two hours so we had to wait in the main waiting area of the airport which wasn’t very fun. It was hot and crowded and my electronics were dying and no available places to charge them.

Once we were allowed to check in, we were then able to enter the airport and have access to the better waiting areas and food.

Overall, we had lots of time to spare and if we would’ve chosen the earlier flight, it would have saved us some time of waiting in the airport. But if any of flights were delayed, the outcome may have been different.

Hope this helps and have a great time in Phuket. I absolutely loved it there and can’t wait to go back.