What is an airport terminal transfer?

What does a terminal transfer mean for a connection?

An airport terminal transfer sits in the middle of a connecting journey: the passenger lands at one terminal and departs from another, and has to get from the first to the second between the two flights. The term covers two quite different situations. In an airside transfer the passenger stays within the airport's transit area the whole time and never presents a passport at immigration. In a landside transfer the passenger leaves the transit area, so the country's normal entry rules sit between the two flights.

The distinction usually matters more than the distance between buildings. A connection that can be completed inside the transit area mainly needs enough time to reach the onward gate and pass any security check, while one that leaves the transit area also needs the traveller to be admissible to the country and to allow time for immigration and for re-checking bags.

Whether someone is treated as a transit passenger is settled by the airport's own conditions rather than by the airline's. At Singapore Changi Airport, travellers must have both flights booked in the same booking itinerary and their check-in luggage tagged through from the origin airport to their final destination in order to qualify as transit passengers. [2] A booking that fails those conditions changes the route completely: Changi says travellers with booked flights that require them to enter Singapore to collect tickets or baggage and check in again for their connecting flight must also meet all necessary public health and entry criteria. [2]

When does a transfer mean leaving security?

Whether a transfer pushes a passenger out of the secure area depends on how the airport has arranged its departure process. At Changi, screening is not skipped just because the traveller is connecting: passengers are required to go through security screening before heading to the boarding gate of the onward flight. [2]

The walking route varies with paperwork. A passenger who arrives already holding the onward flight's boarding pass follows the directional signs to the designated boarding gates for the next flight. [2] A passenger without one first follows the signs to the designated transfer desk area to obtain the boarding pass, and then follows the signs to the boarding gates. [2] In both cases the security check comes before the gate. [2]

Leaving the transit area is a separate decision with separate consequences. Changi notes that travellers who intend to clear arrival immigration to enter Singapore during their layover will need to fulfil all public health and entry requirements to ensure a smooth journey into Singapore. [2] The same applies to travellers whose bookings require them to go out, collect tickets or baggage, and check in again. [2]

How do ticketing and layover length change the plan?

Ticketing decides whether the airport will treat the traveller as a transit passenger at all. One itinerary with through-tagged bags keeps the passenger on the transit route, [2] while arrangements that require the traveller to collect baggage and check in again push them through entry formalities. [2]

The length of the stop then decides how much of the airport, or of the city, is usable. Changi sets out what can be done without clearing immigration: transit hotels can be booked without clearing immigration, pay-per-use lounges and free-to-use rest areas with snooze lounges are available, and shower and spa services are offered. [2] For longer stops, transit travellers from eligible countries, including India and the People's Republic of China (PRC), holding valid onward air tickets may qualify for a 96-hour Visa Free Transit, permitting a stay of up to 96 hours in Singapore as of 18 October 2026; entry eligibility is assessed by Immigration and Checkpoints Authority (ICA) officers at the point of entry. [2]

Put in order, the questions a traveller has to answer are: does the ticket and baggage arrangement qualify as a transit journey, [2] does the onward flight need a new boarding pass or a new security check, [2] and does the plan involve leaving the transit area, in which case the country's entry rules apply. [2]

Exceptions and limits

• The visa-free facility is discretionary. Changi describes the 96-hour Visa Free Transit as something eligible travellers "may qualify" for, with entry eligibility assessed by ICA officers at the point of entry. [2]
• Any exit triggers entry rules, not only the 96-hour facility. Travellers who clear arrival immigration to enter Singapore during a layover need to fulfil all public health and entry requirements. [2]
• Separate tickets break the transit route. Where the booking requires entering Singapore to collect tickets or baggage and check in again, the traveller must meet all necessary public health and entry criteria. [2]
• No onward boarding pass means a detour first. The passenger must reach the designated transfer desk area before going to the gate, and still passes through security screening afterwards. [2]
• Rest is possible without immigration. Transit hotels can be booked without clearing immigration, which keeps a long connection inside the transit area. [2]

Frequently asked questions

Do you have to clear security again when transferring at Changi Airport?

Yes. Changi says passengers are required to go through security screening before heading to the boarding gate of the onward flight, whether they already hold the onward boarding pass or collect it at a transfer desk. [2]

Can you stay inside the terminal during a layover at Changi Airport?

You can if you qualify as a transit passenger, meaning both flights are in one booking itinerary and check-in luggage is tagged through to the final destination. Transit hotels, pay-per-use lounges, free rest areas and shower facilities are available without clearing immigration. [2]

What do you do if you do not have a boarding pass for the next flight?

Follow the directional signs to the designated transfer desk area to obtain the boarding pass, then follow the signs to the boarding gates and pass through security screening on the way. [2]

How long can you leave the airport during a layover in Singapore?

Transit travellers from eligible countries, including India and the PRC, holding valid onward air tickets may qualify for a 96-hour Visa Free Transit, allowing a stay of up to 96 hours as of 18 October 2026, with eligibility assessed by ICA officers at the point of entry. [2]

When does a connecting passenger need to meet Singapore's entry requirements?

When they clear arrival immigration to enter Singapore during the layover, or when their booking requires them to enter Singapore to collect tickets or baggage and check in again for the connecting flight. [2]

Related pages

This entry belongs to the glossary of frequent flyer terms, which is the best starting point if you are reading the encyclopedia for the first time. The same term index links onward to the vocabulary of award tickets, transit conditions and airport procedures that surround a connection, and the full list of terms is the place to check a word you meet on a ticket or in an airport. [2]

Sources

Sources accessed on 18 October 2026. It covers the published transit guidance of Singapore Changi Airport; transfer rules at other airports and the connecting policies of individual airlines are not covered here, so check the glossary for the terms that are.

1. Changi Airport transit guide, checked 18 October 2026