Bangkok has two main airports: Suvarnabhumi International Airport (after the addition of two runways can handle up to 100 million passengers per year), Don Muang (in 2004 served 30 million passengers and was the 14th busiest airport in the world).
Remember that you do not have to print your ticket. Nowadays, showing tickets over the phone is also acceptable, even on low-cost airlines.
If you feel unwell before your flight, remember that there is a doctor on duty at the airport. The same situation upon arrival. Medical care is free for every traveler.
If you get lost at the airport - stop, take a breath and look for signs. Most airports are clearly marked. In a critical situation, ask someone from the staff, for example, a cleaning lady who knows every corner of the building.
Flights to Bangkok
List of popular destinations with flights arriving at Bangkok airports