T'Way Air enforces specific baggage rules where standard economy passengers are permitted a combined carry-on limit of 10 kilograms covering both a main cabin bag and a personal item. Checked baggage allowances vary strictly by fare category, ranging from zero free checked baggage on basic promotional tiers to 15 kilograms on smart fares, 20 kilograms on normal fares, and up to 30 kilograms for business class tickets.