Oct. 12, 2025 just prior to high season kicking off, Suvarnabhumi International Airport is extremely busy.
The good news is the airport has tried to streamline processes in the immigration lines and other areas.
A good tip if you are traveling, 24 hours prior to your flight, book your boarding passes online and skip the madness at the check in counters.
Thai Airways and other airlines have check in kiosks, where if you have pre-booked, you can print your bordering passes right out at the kiosks.