Airlines generally limit carry-on bags to between 20 to 22 inches (approx. 56 x 36 x 23 cm) with a maximum weight of 7–10 kg. The 24-inch size is too large for the overhead compartment and often exceeds the weight limit. For low-cost airlines, travelers should purchase checked baggage weight in advance to save costs.

Travel between Don Mueang (DMK) and Suvarnabhumi (BKK) for free! The Airport Shuttle Bus service is strictly for connecting flight passengers on the same day. Find departure times and mandatory requirements here.

Thai Airways announces a major change to its baggage policy! Shifting from Weight Concept to Piece Concept, effective Nov 25, 2025 (for travel from March 2, 2026). bbag summarizes new allowances by cabin class for international and domestic routes, plus the crucial 158 cm dimension rule. Don't miss out! Get ready to pack smart before your next flight.