Flights from Bangkok either operate from Don Muang airport or Suvarnabhumi airport. Currently, Don Muang is exclusively used for domestic flights from Bangkok to destinations within Thailand. Nok Air and One-Two Go are airlines operating flights from Don Muang. The airport to the north of Bangkok. It’s IATA aiport code is DMK. Suvarnabhumi airport is the major gateways from Bangkok to the world and handles both domestic flights within Thailand as well as all international flights to and from Bangkok. It lies on the Bangkok-Trad highway to the South-West of Bangkok. The IATA airport code is BKK. Suvarnabhumi airport just has one terminal of it’s easy to get around and also to connect between flights, even if the flights are operated by different airlines.

The biggest airline in Bangkok is of course Thai Airways, Thailand’s national carrier. TG is offering many flights to destinations within Thailand as well as abroad. Other big operators include Bangkok Airways, Thai Air Asia and Cathay Pacific.

Passengers to and from Bangkok usually have a choice between flights operated by low-cost airlines or flights operated by full service airlines. Fares are low on both types of airlines. And because most passengers to/from Bangkok are leisure passengers, also Business Class fares are reasonable.
 
Flights are hardly delayed in Bangkok. Unlike Hong Kong or other major airports in Asia, Bangkok usually does not see any typhoons or other severe weather conditions. Tropical thunderstands do visit Bangkok during the rainy season (May to September) then can lead to flights being delayed.

Thailand's policy towards avaition is pretty liberal. Any airline that wishes to operate flights into Bangkok will have no problems securing the relevent traffic rights that will enable them to operate domestic or international filghts into Bangkok.
 
Air traffic congestion is a growing problem. although Suvarnabhumi has only been in operation for a few years, the airport is already reaching its limit on daily flights. Already now, during peak hours of the day (e.g. around midnight), Bangkok's major international airport is no longer able to accommodate new flights.