Can you travel between terminal 1 and 3?

There are no physical airside connections between any of the other terminals. Inter-terminal connections between terminals 1, 2, and 3, and between them and the other terminals, require passengers to exit security, then walk or use a shuttle-bus to get to the other terminal, then re-clear security.



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The estimated time taken to travel between the terminals using the transit shuttle bus is as follows: T4 to T1: 18mins. T1 to T3: 6mins.

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At least two hours is recommended. Just remain in the transit area. You won't need to clear arrival immigration and check in again for your connecting flight, so you won't need a visa to enter Singapore.

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You'll need to clear customs and immigration. Next, you'll recheck your luggage for the domestic flight. Finally, you'll need to go through Transportation Security Administration screening. This may include a physical inspection of your luggage and personal items with a metal detector or a full-body scan.

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The airport shuttle bus runs every 20 to 30 minutes and transports passengers between terminals. Buses operate outside of the secure area, so passengers need to re-clear security on arrival at the connecting terminal.

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The terminals are arranged in a circular format that is referred to as The Terminal Loop. Terminals 1, 2, and 3 serve primarily domestic flights, while the International Terminal serves (you guessed it!)

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By Skytrain Terminals 1, 2 and 3 are connected by a complimentary Skytrain service in both the public and transit areas.

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Terminal 1 is connected to Terminal 3 with a landside connection only, so if you're walking between these terminals, you'll need to re-clear security on the other end. Passengers can ride an airside shuttle bus for flight connections between these terminals.

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Inter-terminal connections between terminals 1, 2, and 3, and between them and the other terminals, require passengers to exit security, then walk or use a shuttle-bus to get to the other terminal, then re-clear security.

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For international layover flights booked on one airline, two hours is often recommended to make your connection. For international flights on different airlines, the connection time will need to be even greater as you may have to change terminals between the two flights.

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The recommended layover time for domestic flights is normally one hour. However, as previously stated, you may require longer if your flights are booked with two different airlines, if you are traveling to a very busy airport or if you require special assistance.

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The recommended layover time for international flights is generally longer, as you will have to go through customs and immigration before boarding your next flight. In most cases, a 30-minute layover for domestic flights and an hour for international flights is considered a minimum, or short, layover.

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