Suvarnabhumi uses a single, large terminal building for arrivals and departures; international and domestic flights operate from the same terminal. Check-in, bag drop and major airline transfer desks are on the landside levels while passport control and departure gates are arranged along the airside concourses. Full-service carriers (notably Thai Airways and its group) operate their premium lounges and check-in areas here; many other international airlines also use the terminal. Basic passenger services - restaurants, shops, duty-free, transfer desks and multiple airline lounges - are available throughout the airside areas.

Because the airport is one integrated terminal, most transfers can be done airside without leaving the terminal; landside transfers (for example to nearby airport hotels) use covered walkways, shuttles or short taxi rides.

Suvarnabhumi is connected to Bangkok by the Airport Rail Link, airport buses, taxis/ride‑share and road; travel to central Bangkok is typically 25-45 minutes by train and 30-60+ minutes by car depending on traffic.

• Airport Rail Link (City Line): Connects the airport to Phaya Thai (BTS) and central rail links in ~25-30 minutes; fare is around 45 THB for the City Line. This is usually fastest during peak traffic.
• Buses & shuttle services: Public and hotel shuttle buses plus airport limousine services operate to major points in the city; schedules vary by route and operator.
• Taxis: Metered taxis depart from the official ranks on the arrivals level; expect an airport surcharge (≈50 THB) plus tolls and a typical fare of ~300-500 THB to central areas off-peak.
• Ride-share: Grab operates in Bangkok and can be used to book cars from the airport; pickup points are near the taxi/ride-share zones on the arrivals level.
• Driving: The airport is roughly 30 km from central Bangkok; drive time is typically 30-60+ minutes depending on traffic and time of day.

Suvarnabhumi offers a full range of passenger facilities: multiple airline and pay-per-entry lounges, a wide selection of food outlets and shops, free limited-time Wi‑Fi, charging points in gates and lounges, luggage services and accessible facilities throughout the terminal.

Lounges: The terminal houses airline-operated lounges for premium passengers (Thai Airways lounges for its premium customers) plus pay-per-use and contracted lounges that may accept Priority Pass or similar cards.

Food and drink: There is a mix of fast-food and sit-down restaurants both landside and airside; duty-free shopping and convenience outlets are plentiful in the departures zones.

Wi‑Fi & charging: Free airport Wi‑Fi is available (registration usually required and time-limited); charging points and power outlets are common in gates and seating areas.

Luggage & showers: Short-term luggage storage and porter services are available landside; shower facilities are offered in some lounges and at the transit hotel.

Accessibility: The terminal provides ramps/elevators, accessible toilets and assistance services; request help from airline staff or airport information desks if needed.

There are several hotels directly adjacent to the terminal and a transit hotel inside the terminal for short layovers. The most convenient full-service option is an Accor property linked to the terminal by a covered walkway; day rooms and 24-hour check-in are commonly available. For very short connections, an on-site transit hotel and airside rooms/sleep pods serve overnight and transit passengers.

• Novotel Bangkok Suvarnabhumi Airport - adjacent to the terminal and connected by a covered walkway; part of Accor. [accor.com]

Tip for long layovers: ask at the transit hotel or airline transfer desk about day rooms; the on-site transit hotel (airside) can be used without passing immigration for some connections.