Gate-side in Terminal 1, King Power Duty Free is the main place to offload remaining baht before your DMK departure. It sits airside after security, serving international flights from early morning through late-night departures, so you can shop right up to boarding calls.
Cosmetics, skincare, and perfume dominate the front of the store, with mid-range brands often tagged with “Duty Free Price” signs showing 5–20% below typical Bangkok mall pricing. Tobacco and liquor sit further inside; there are clear 1-liter and carton allowance signs for common destinations, which helps if you’re heading to places like Japan or Singapore with tighter rules.
Thai souvenirs are here too: boxed durian chips, dried mango, and coconut rolls usually run around 150–350 THB per pack, while gift-ready boxes of Thai snacks and tea are closer to 400–700 THB. If you forgot last-minute presents, you can cover most needs in a single 10-minute lap of the shop.
Electronics and travel gadgets live near the rear: power banks, charging cables, and adapters priced slightly higher than in central Bangkok, but still useful if your only other option is the airport convenience store. Prices are clearly in both THB and duty-free equivalent where relevant, so you can gauge value before committing.
Tip: DMK security and immigration can move fast; you may have 20–30 minutes spare at the gate. Do a quick price check on your phone using the free airport Wi‑Fi before buying larger-ticket cosmetics or liquor here.