Yes, you can smoke after security at Singapore Changi Airport (SIN): all four terminals have designated smoking areas inside the Departure Transit Lounges, enclosed indoor rooms in Terminals 2 and 3 and open-air garden terraces and decks, so a smoker can connect through Changi without re-clearing screening. Singapore’s anti-smoking law is strict — fines of up to SGD $1,000 for smoking outside a designated area, plus an outright ban on vapes since 2018 — so stay inside the marked areas here and everywhere else in the country, and leave the vape at home.
How Singapore Airport Smoking Works
Singapore’s national tobacco law bans smoking in most enclosed public spaces, with substantial fines for violations. Changi Airport implements:
- Indoor smoking rooms airside: enclosed, ventilated rooms inside the Departure Transit Lounges — the Sanctuary and Pavilion lounges in T2, the areas opposite the Butterfly Garden and at the Garden Terrace in T3
- Outdoor airside gardens: open-air terraces post-security at every terminal, including T1’s Cactus Garden and T2’s Sunflower Garden
- Outdoor landside areas: marked spots outside the terminals, such as the one by the T1 entrance next to the coach stands and the one outside T3 by Door 8
- The rest of the terminal: smoke-free, and enforced
The garden terraces are planted and seated, part of Changi’s wider airside garden network; smoking stays inside the marked portions.
Changi Terminal-by-Terminal
Terminal 1. Cactus Garden in the Departure Transit Lounge West (Level 3), the central lounge by the snooze lounge (Level 3), the West Outdoor Deck (Level 2), and areas near Gate D36 and Gate C16 (Level 2). Landside, there is a marked spot by the T1 entrance next to the coach stands, shared with Jewel Changi.
Terminal 2. Sunflower Garden in the Departure Transit Lounge South (Level 3), the Sanctuary Lounge on the north finger pier and the Pavilion Lounge on the south finger pier (Level 2), plus areas by the Children’s Play Area and next to the GST refund counters (Level 2).
Terminal 3. Singapore Airlines and Star Alliance hub: the Garden Terrace by Gates A1 to A8 and the Koi Pond with an indoor area and an outdoor terrace, the indoor area opposite the Butterfly Garden next to Harry’s Bar, and outdoor spots opposite Gate B10 and beside Gate A21, all on Level 2. Landside, there is a marked area outside T3 by Door 8.
Terminal 4. Areas in Departure Transit North near Gate G4 and by the Heritage Zone, on the north pier near Gate G16 (Level 2), and near Lift Lobby 10/11 on Level 2M.
(Jewel Changi, the iconic shopping/leisure complex connecting the terminals, is entirely smoke-free indoors.)
The Vape Warning
This must be flagged: vapes and e-cigarettes are illegal in Singapore. Importation, sale, possession, and use are all banned under the Tobacco and Vaporisers Control Act, which replaced the Tobacco (Control of Advertisements and Sale) Act name on 1 May 2026 and raised the penalties: possession or use now carries a fine of up to SGD $10,000 (the ceiling was $2,000 until 30 April 2026), repeat users have been sent to a rehabilitation programme since 1 September 2025, and etomidate-laced devices carry up to SGD $20,000 or ten years in prison. Singapore enforces aggressively — customs scans for vapes on arrival. Cigarettes themselves are legal.
Tips for Smokers at Singapore Changi
- Every terminal has designated airside smoking areas, enclosed rooms or garden terraces, so a transit smoke needs no re-screening
- DO NOT bring vapes to Singapore — confiscation and fines
- Singapore gives no duty-free allowance for tobacco — declare and pay duty on any cigarettes you bring in
- Heat-not-burn devices (IQOS) are also restricted — treat the same as vapes
- Outdoor smoking landside (e.g., when leaving for the city) means staying inside the marked smoking areas
Singapore Airports Compared: Indoor, Outdoor & After Security
| Airport | After security | Indoor room | Outdoor area |
|---|---|---|---|
| Changi Airport (SIN) | Yes | Yes | Yes |