I booked tickets flying into and out of Bangkok from New York. I am taking round trip flights from BKK to Chiang Mai, BKK to Siem Reap, and BKK to Ko Sumai. My question is should I book these flights in advance before leaving New York or can I show up at the airport and book the same day? Will there be flights available same day and which would be more economical? Book the same day or in advance? I'm traveling in March.
Thanks for any advice!!