Singapore Changi Airport Terminal Guide

Singapore Changi Airport (SIN) – Terminal Information, Passenger Services, and Transport Options

Changi Airport Terminal Layout

Singapore Changi Airport is made up of four main passenger terminals: Terminal 1, Terminal 2, Terminal 3, and Terminal 4. All four handle international flights every day and together they support tens of millions of passengers per year. Terminals 1, 2, and 3 are physically linked to each other and to Jewel Changi Airport, allowing travelers to move easily between check-in areas, immigration, dining, and shopping. Terminal 4 is a separate terminal with its own departure hall and is connected by a free shuttle service.

Changi Airport’s current operating capacity is around 90 million passengers annually across these four terminals, and the airport is already expanding with a future Terminal 5 to meet growing global demand for air travel.

Changi is known not only for efficiency, but also for experience. Travelers can access Jewel Changi Airport — a retail, dining, and attractions complex featuring the world-famous Rain Vortex indoor waterfall — directly from Terminals 1, 2, and 3 via link bridges.

Inside the Terminals at Singapore Changi Airport

Each terminal at Singapore Changi Airport is designed to handle both arrivals and departures with clear wayfinding, automated immigration, and fast security. Changi is also testing biometric clearance systems that let many passengers clear immigration in seconds using facial, fingerprint, and iris recognition, reducing queues and speeding up border control.

Typical services available in the terminals include:

Check-in counters and self-service bag drop
Immigration and security screening
Duty-free shopping and luxury retail
Food courts, cafés, bars, and international restaurants
Money exchange, ATMs, medical assistance, and pharmacy
Baggage services and lost & found support for delayed or damaged luggage
These facilities are organized to keep walking distances reasonable and make tight connections easier, especially for transit passengers who do not enter Singapore.

Changi Airport is also famous for comfort features you don’t normally see in an airport: themed indoor gardens, quiet rest zones, free movie theater areas, children’s play spaces, an airside swimming pool, and even climbing and entertainment zones.

Wi-Fi, Lounges, and Relaxation Spaces

Passengers at Singapore Changi Airport have access to free Wi-Fi throughout the terminals, making it easy to work, message family, or confirm onward travel. Lounges are available in Terminals 1, 2, 3, and 4, including both airline lounges and pay-per-use lounges. Many lounges offer showers, hot food, quiet seating, and business facilities for travelers who want to rest before a long-haul flight.

Transit hotels are also located inside the secure (airside) area. For example, Aerotel Transit Hotel in Terminal 1 is known for offering private rooms, 24/7 service, and access to a rooftop outdoor swimming pool, jacuzzi, gym, and bar — one of the most unique airport facilities in the world. Non-staying passengers can often pay for pool access during a layover.

For travelers who want a traditional full-service hotel connected directly to the terminal, the Crowne Plaza Changi Airport is linked to Terminal 3 and gives direct access to the terminals, Jewel, and the city via MRT or taxi. Rooms are soundproofed and designed for overnight rest between flights or early-morning departures.

FAQs

How many terminals does Singapore Changi Airport have?

Changi Airport currently operates four main passenger terminals: T1, T2, T3, and T4. Terminals 1–3 are connected to each other and to Jewel Changi Airport, while Terminal 4 is reached by a free shuttle bus.

Is there free Wi-Fi in the terminals?

Yes. Free Wi-Fi is available throughout Singapore Changi Airport, including transit areas and waiting zones, so passengers can get online while waiting for a flight or during a layover.

Can I sleep at the airport between flights?

Yes. You have two main options:

Book a room in a transit hotel (for example Aerotel in Terminal 1 or Ambassador Transit Hotel in other terminals) and stay airside without clearing immigration.
Book a room at the Crowne Plaza Changi Airport, which is connected to Terminal 3 landside.

Are there airport lounges in every terminal?

Yes. You’ll find both airline lounges and pay-per-use lounges in Terminals 1, 2, 3, and 4. Even if you’re not flying business class, you can often buy access to showers, food, and quiet seating.

Can I swim at Changi Airport?

Yes. The airside Aerotel Transit Hotel in Terminal 1 features an outdoor rooftop pool and jacuzzi overlooking the runway — a rare service for a major international airport. Day access is available for a fee, even if you’re not staying overnight.

Is there free entertainment for long layovers?

Changi offers attractions like Jewel’s Rain Vortex and indoor forest, butterfly gardens, themed zones, cinema areas, and interactive family spaces in the terminals, which is why the airport is repeatedly described as one of the best in the world for transit passengers.