Changi terminal transfers: what connects T1–T4 and Jewel, airside and landside

Changi publishes its terminal connections as prose, spread across a few pages, and the single most consequential fact is buried in it: Terminal 4 is not on the Skytrain. This is the same information as a sortable grid — every pair among T1, T2, T3, T4 and Jewel, 20 rows, split by whether you are staying airside or have cleared immigration. Where the airport publishes no figure, the row says so instead of guessing: that is 1 of the 20.

Snapshot 2026-08-31. Every hour, frequency and journey time below is quoted from Changi Airport Group — “Transfer Between Terminals & Jewel”, checked on 2026-08-31. The four traps further down are our reading of those figures, not the operator’s wording.

The four things people get wrong

Our editorial reading of the operator’s figures — the reason this grid is worth having at all.

1. Terminal 4 is not on the Skytrain
The Skytrain covers T1, T2 and T3 only. Every T4 transfer is a bus, in both the transit and the public area. If your connection assumes a two-minute train ride to T4, it is wrong.
2. The landside T4 shuttle does not stop at midnight — it changes shape
The direct run to T4 works 6:00AM to 12:00AM. From 12:00AM to 6:00AM the same service becomes a loop, T2/MRT - T3/MRT - T1/Jewel - T4, roughly every 19 mins. So T4 stays reachable all night landside, but on a longer ride and a wider gap than the daytime service — plan a night connection around the loop rather than around a shuttle that has stopped.
3. Airside to T4 is the slower direction, not the faster one
The operator puts the public-area T4 run at about 10 minutes and publishes the airside legs separately: 19 mins between T4 and T1, 12 mins between T4 and T2 or T3. Staying airside saves you the immigration queue, but the bus itself is slower — by a couple of minutes from T2 and T3, and by about nine from T1.
4. Jewel costs a border crossing on a layover
Jewel is in the public area, between T2 and T3. A transit passenger must clear arrival immigration to enter Singapore and visit Jewel — so "popping into Jewel" during a connection means clearing immigration twice, not a five-minute detour.

The grid

Staying airside (transit area)

You have not cleared immigration. Jewel is unreachable without doing so, and the T4 shuttle is the slow leg.

From	To	What carries you	Hours	Every	Journey	On foot instead
T1	T2	Skytrain	5:00AM - 2:00AM	—	—	Inter-terminal travellators in the Departure Transit areas
T1	T3	Skytrain	5:00AM - 2:00AM	—	—	Inter-terminal travellators in the Departure Transit areas
T2	T3	Skytrain	5:00AM - 2:00AM	—	—	Inter-terminal travellators in the Departure Transit areas
T1	T4	Shuttle bus	All day	~8 mins	~19 min	—
T2	T4	Shuttle bus	All day	~8 mins	~12 min	—
T3	T4	Shuttle bus	All day	~8 mins	~12 min	—
T1	Jewel	Not possible without immigration	—	—	—	—
T2	Jewel	Not possible without immigration	—	—	—	—
T3	Jewel	Not possible without immigration	—	—	—	—
T4	Jewel	Not possible without immigration	—	—	—	—

Landside (public area)

You have cleared immigration, or you never boarded. The direct T4 run ends two hours before the Skytrain does, then keeps going as an overnight loop.

From	To	What carries you	Hours	Every	Journey	On foot instead
T1	T2	Skytrain	5:00AM - 2:00AM	—	—	link bridge at JEWEL Level 3
T1	T3	Skytrain	5:00AM - 2:00AM	—	—	link bridge at JEWEL Level 3
T2	T3	Skytrain	5:00AM - 2:00AM	—	—	link bridge at Mezzanine Level
T1	T4	Shuttle bus	6:00AM to 12:00AM	7 to 9 mins	~10 min	—
T2	T4	Shuttle bus	6:00AM to 12:00AM	5 mins	~10 min	—
T3	T4	Shuttle bus(operator publishes no figure)	6:00AM to 12:00AM	—	~10 min	—
T2	Jewel	Walk	—	—	5–10 min	—
T3	Jewel	Walk	—	—	5–10 min	—
T1	Jewel	Walk	—	—	—	—
T4	Jewel	Shuttle bus	6:00AM to 12:00AM	7 to 9 mins	~10 min	—

Download the full table

The same 20 rows as CSV, with the operator quote behind each one and an operator_states column so you can filter out what Changi does not publish: changi-terminal-transfers.csv.

Frequently asked questions

Is Terminal 4 connected to the Changi Skytrain?

No. The operator's wording is "Terminals 1, 2 and 3 are connected by a complimentary Skytrain service" — Terminal 4 is not on it. Every T4 transfer is "a complimentary shuttle bus services at both public and transit areas", so it is a bus whether you are airside or landside.

How long does it take to get to Terminal 4 at Changi?

Changi Airport Group puts the public-area run at "about 10 minutes" and publishes the airside legs separately: "19 mins" between T4 and T1, "12 mins" between T4 and T2 or T3. The airside route is the slower of the two, which catches people out: staying in transit saves the immigration queue but costs a couple of minutes from T2 and T3, and about nine from T1.

What time does the last shuttle to Terminal 4 leave?

There is no last one: the direct public-area run is listed as "6:00AM to 12:00AM", and from "12:00AM to 6:00AM" the service continues as a loop, "T2/MRT - T3/MRT - T1/Jewel - T4", about every "19 mins". So T4 stays reachable landside through the night, on a longer ride and a wider gap than by day. The transit-area shuttle is listed as "All day".

Can I visit Jewel during a layover without clearing immigration?

No. Jewel sits in the "public area, between T2 and T3", and a transit passenger "must clear arrival immigration to enter Singapore and visit Jewel". From Terminal 1 it is barely a journey — the "North entrance is connected to the Arrival Hall of T1, Level 1" — but you still have to cross the border to use it. From T2 and T3 the operator gives a "5 to 10 minute walk".

How do I get between terminals when the Skytrain has stopped?

On foot. Airside there are "Inter-terminal travellators located throughout the Departure Transit areas"; landside the T2–T3 link bridge is at "Mezzanine Level" and the T1 bridge to T2/T3 runs "at JEWEL Level 3".

How we built this

Every figure is quoted from the operator’s own page, dated above. We did not measure walking or bus times ourselves, and we did not fill the gaps: Changi lists the landside T4 shuttle from T1/Jewel and from T2 but not from T3, so 1 of the 20 rows carries no published frequency and says so rather than a number we invented. By day you reach T4 via T2; the overnight loop calls at T3 on its way. If you are working to a tight connection, confirm with changiairport.com — construction around Terminal 5 will move some of this.