How early should I arrive at Suvarnabhumi airport for a domestic flight with Thai Vietjet Air?

For a domestic flight with Thai Vietjet Air from Suvarnabhumi airport, it is generally recommended to arrive at least 2 hours prior to your flight. Although check-in closes 45 minutes before departure, many travelers suggest that arriving even earlier than necessary can lead to prolonged waiting if the airport is busy. Users reported that security checks at the airport can be quite quick, sometimes taking only a few minutes. Regarding hand luggage, as long as you adhere to the weight limit of 7kg and the proper dimensions (56*36*22 cm), there should be no issues at check-in.