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Thai Domestic Airlines (7 kg Carry-On), SRT Sleeper Train & High-Speed Island Ferry Luggage Checker

Verify bag weight and size limits across Thai AirAsia, Nok Air, Thai VietJet, Bangkok Airways, Thai Airways, SRT CNR sleeper racks, and Lomprayah/Phi Phi ferries.

By the ThailandStarter Editorial Team · Fact-checked · Updated

Crucial Thailand Domestic Flight & Island Ferry Baggage Rules

  • Low-Cost Carriers at Don Mueang (DMK) & Suvarnabhumi (BKK): Thai AirAsia, Nok Air, Thai VietJet, and Thai Lion Air strictly enforce the 7 kg combined cabin carry-on limit (56×36×23 cm). Pre-booking a 20 kg checked bag online costs ฿450–฿650 vs. ฿1,100–฿1,500 at the airport counter.
  • Bangkok Airways (PG) Advantage: Every Economy ticket on Bangkok Airways includes 20 kg checked baggage free plus complimentary boutique lounge snacks at BKK, CNX, HKT, and USM!
  • SRT CNR Sleeper Trains: Under-seat racks at every lower berth hold suitcases up to 65×45×30 cm free of charge (up to 30–40 kg).

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