Thailand Guide

Domestic flights and baggage

Domestic flights are a cheap hop until the bag fee. Buy the bag with the ticket. A 7 kg cabin limit is both bags together. Suvarnabhumi and Don Mueang are different airports. Use the airport you already landed at.

7 kgBKK vs DMKBuy bags now
Domestic flights and baggage
Low-cost cabin7 kg combined on AirAsia, Nok, Lion, Vietjet
Full servicePG about 20 kg checked; TG 23 kg economy typical
Bangkok airportsDMK for most LCCs; BKK for TG, PG, Vietjet
USMPrivate-concession airport. Fares run high. PG is the useful door

Domestic Thailand is two airports in Bangkok and a pile of short hops. Thai AirAsia (FD), Nok Air (DD), and Thai Lion Air (SL) live at Don Mueang. Thai Airways (TG) and Bangkok Airways (PG) live at Suvarnabhumi. Thai Vietjet (VZ) is the Suvarnabhumi low-cost. A connection that says BKK to DMK is a city transfer, not a walk.

The fare you clicked is often a seat plus 7 kg. Nok Lite and Vietjet Eco include no checked bag. Airport counters sell the same kilos for more. Excess at the belt is worse again.

What each cabin actually includes

AirlineBangkok airportCabin bagChecked bag in the fare
Thai AirAsia (FD)Don Mueang7 kg combined, two piecesNone on the cheap fare. Buy 15 to 30 kg with the ticket
Nok Air (DD)Don Mueang7 kg combined, two piecesLite 0 kg; X-Tra 15 kg; MAX 25 kg
Thai Lion Air (SL)Don Mueang7 kg, watch the piece rulesNone on the cheap fare
Thai Vietjet (VZ)Suvarnabhumi7 kg combined; SkyBoss 10 kgEco 0 kg; Deluxe often 20 kg; SkyBoss 30 kg
Bangkok Airways (PG)Suvarnabhumi, plus USM and HKT7 kg per piece; tighter on ATR72About 20 kg on standard fares. Economy on many short hops, Blue Ribbon on Airbus sets
Thai Airways (TG)Suvarnabhumi7 kg per piece typicalAbout 23 kg economy

Airports that change the plan

USM (Samui) is a private-concession field. Bangkok Airways is the useful operator. Fares look high because they are. Price the door-to-bay day against a Surat or Donsak ferry before you decide it is a scam. HKT-USM is a PG Economy hop of about 55 minutes.

Krabi, Phuket, Chiang Mai, and Chiang Rai take a mix of low-cost and full-service flights. Chumphon and Surat Thani are the Gulf-island mainland doors. Hua Hin Airport is not a Bangkok substitute. Trat Airport is for Chang and Kood, not for Samui.

Nok's own baggage page still sells extra kilos cheaper with the ticket than after purchase (15 kg domestic 600 THB with the ticket, 800 THB later, in the table we checked). Vietjet's domestic 15 kg add-on sat near 355 THB. Numbers move. Buy before you pack rocks.

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Common questions

Can you connect BKK and DMK in two hours?
On paper. In rain, no. Build three hours plus immigration if you just landed international. Better: do not.
Does Bangkok Airways include a bag to Samui?
Usually about 20 kg checked on a standard PG fare. Confirm the fare family. The ATR cabin is smaller than an A320.
Is 7 kg each bag or both?
On the LCCs it is both, combined. The laptop and the water bottle count.