Singapore Airport (SIN) — Direct Flights, Airlines, THB Fares

Changi Airport (SIN, ICAO WSSS) is in Singapore, Singapore. It is the based hub of Singapore Airlines, Scoot and Jetstar Asia. In the SiamFlights catalogue, SIN is served by 6 airlines across 4 routes (0 outbound, 4 inbound).

Airport at a glance

Our catalogue records 0 outbound and 4 inbound corridors at Changi Airport (SIN / ICAO WSSS), serving Singapore, Singapore, across 6 carriers with 3 of them based here. Time zone Asia/Singapore. Frequency across the corridors touching this field totals about 210 departures a week.

A base changes the outcome when things break. Singapore Airlines, Scoot and Jetstar Asia are based at SIN, meaning aircraft, crew and operations staff sit on site. When a flight is cancelled the odds of a seat on the next rotation, or of a spare airframe, are far better at a base than at an outstation the carrier touches once a day. It is why the leg departing an airline’s own base usually recovers faster than the one returning to it.

Coordinates are for checking, not decoration. SIN sits at 1.35019, 103.994. That is genuinely useful when booking a room or a transfer, because “near the airport” is claimed to wildly different standards. In a large city, map distance and real travel time in peak hours diverge sharply — read the travel time for the hour you will actually move, not the kilometre figure.

Airlines serving SIN

6 carriers appear at SIN in our catalogue and we hold an airline row for 5 of them, with baseline baggage spanning 7 to 30 kg. Alliances present: Star Alliance. 3 of them are based here. The field runs on Asia/Singapore, ICAO WSSS.

“Serves” is not “flies daily”. This list covers every carrier appearing on a corridor into or out of SIN in our catalogue. Some fly seasonally, some a few times a week, and some sell as the marketing carrier on a partner’s aircraft. The number that matters to your plan is how many actually quote your dates — usually fewer than the full list.

The 7–30 kg range is two business models under one roof. The low end comes from unbundled fares that sell hold baggage separately; the high end from full-service carriers that include it. At the same airport those two desks price excess weight on different scales and by different methods. Connect between the two on separate tickets and a bag that cleared the first sector may not clear the second.

SIN route overview

SIN has 0 outbound corridors in our catalogue, roughly 0 departures a week All figures are estimates of the standard schedule. 6 carriers appear at SIN, 3 of them based at the field. Frequency across the corridors touching this field totals about 210 departures a week.

Inbound

This field sits in our catalogue as a destination. We record 4 inbound corridors into it, splitting 4 short-haul (<4h), and no outbound guides — we build route pages only for journeys starting in Thailand. Departures from here exist; they simply have no page in this set yet. Read the carrier’s own schedule for the return.

Outbound and inbound are asymmetric because this is a catalogue boundary. We record 0 outbound and 4 inbound corridors for SIN. The gap reflects which route guides we chose to build — weighted to what travellers from Thailand search — not one-way service. The return flights exist whether or not we have published a page for them yet.

Corridors & fares from SIN

The 4 corridors at SIN break down as 4 short-haul (<4h), serving mainly ASEAN & regional leisure. We hold a cached fare for 3 of 4 routes, the lowest ฿4,350 on HKT–SIN. The field runs on Asia/Singapore, ICAO WSSS.

Most SIN corridors here serve ASEAN & regional leisure travellers. The mix is 4 short hops (under 4 h). Fares are shown in Thai baht (THB), and each route guide below carries live cached prices.

Everything is shown in baht, and that matters more than it looks. Fares are converted to THB so they compare on one page, but the underlying prices are set in the currency of the market that issues the ticket. The same corridor can price differently issued in different countries, and the exchange rate moves between our capture passes. Read these as a ranking, not as accounting figures.

Why some rows have no price. We capture lows in passes, and not every corridor returns a value each time. Seasonal routes, thin routes and routes sold through narrow channels report irregularly. An empty cell means no capture succeeded in the latest pass — not that the route is closed or expensive. We leave it blank rather than interpolate, because plausible-looking estimates are exactly what makes a table untrustworthy.

Direct flights to SIN — 4 routes

Our catalogue records 4 inbound corridors into SIN from 1 country, block times 1.9 to 3.0 hours. Frequency figures are estimates combining every carrier on the corridor. 6 carriers appear at SIN, 3 of them based at the field. Frequency across the corridors touching this field totals about 210 departures a week.

• BKK → SIN — 126×/wk, 2.4 h, low ฿5,130
• HKT → SIN — 42×/wk, 1.9 h, low ฿4,350
• DMK → SIN — 28×/wk, 2.5 h, low ฿6,234
• CNX → SIN — 14×/wk, 3.0 h

The destination country sets the rules, not the departure airport. The corridors here span 1 country, each with its own aviation regulator, visa regime and transit conditions. What you are owed changes with the destination and the direction of travel, not with the airport you left from. The route guides carry the detail per corridor.

How to read this list usefully. The frequency figure describes the risk in your plan, not the quality of the route: several departures a day gives you options when something breaks, a few a week means building in a spare day. We hold a cached fare on 3 of the 4 corridors here; the rest have no successful capture yet, which does not mean they cost more.

Destination context

The 4 corridors at SIN break down as 4 short-haul (<4h), serving mainly ASEAN & regional leisure. We hold a cached fare for 3 of 4 routes, the lowest ฿4,350 on HKT–SIN. Our catalogue records 0 outbound and 4 inbound corridors here.

Singapore is a cluster D (ASEAN & regional leisure) destination for Thai travellers. Local currency SGD. Visa for Thai passports: visa-free 30 days (ASEAN). Verify current visa rules at mfa.go.th before buying a ticket.

Everything is shown in baht, and that matters more than it looks. Fares are converted to THB so they compare on one page, but the underlying prices are set in the currency of the market that issues the ticket. The same corridor can price differently issued in different countries, and the exchange rate moves between our capture passes. Read these as a ranking, not as accounting figures.

Why some rows have no price. We capture lows in passes, and not every corridor returns a value each time. Seasonal routes, thin routes and routes sold through narrow channels report irregularly. An empty cell means no capture succeeded in the latest pass — not that the route is closed or expensive. We leave it blank rather than interpolate, because plausible-looking estimates are exactly what makes a table untrustworthy.

Time zone and connecting at SIN

SIN runs on Asia/Singapore, 1h ahead of Bangkok. The gap is constant year-round. Every time printed on a boarding pass is local to that airport rather than an elapsed duration, so subtracting one from the other gives you the wrong number.

International-to-domestic is a full re-entry. At most airports that connection means clearing immigration, reclaiming the bag for customs, then checking in and passing security again — even on a single ticket. It takes materially longer than an international-to-international transfer. Plan around the actual steps rather than the gap printed on the itinerary.

Offsets make overnight flights deceptive. With SIN 1h ahead of Bangkok, a late-night departure can arrive the same morning or the next one on paper for identical flying time. That is the single most common reason transfers and first hotel nights get booked on the wrong date. Read the date on the final sector’s boarding pass, then confirm anything on the ground.

Minimum connection time is not in our data. Every airport publishes one, and the figure differs for domestic-to-domestic, international-to-international and terminal-change connections. A booking system will not sell you less than that on a single ticket — but it will happily let you build less than that yourself across two tickets. That is where passengers most often create risk without realising it.

FAQ

Where is SIN airport located?

SIN (ICAO WSSS) is in Singapore, Singapore.

Which airlines serve SIN?

6 airlines serve SIN, including Singapore Airlines, Scoot, Jetstar Asia and Thai Airways. Compare baggage and alliances in the table above.

How many routes run from/to SIN?

The SiamFlights catalogue lists 0 outbound and 4 inbound routes for SIN.

Is SIN an airline hub?

SIN is a primary hub for Singapore Airlines, Scoot and Jetstar Asia.

Do Thai passports need a visa for Singapore?

Visa for Thai passports: visa-free 30 days (ASEAN). Check the latest at mfa.go.th.

What is the difference between SIN and WSSS?

SIN is the three-letter IATA code used on tickets and bag tags; WSSS is the four-letter ICAO code used in flight plans and operational documents. They are different systems, not an inconsistency.

How far is SIN from Bangkok time?

SIN runs on Asia/Singapore, 1h ahead of Bangkok. It does not change clocks seasonally, so the gap is constant.

Why do some SIN corridors show no fare?

Because no capture succeeded in the latest pass of our cache. Seasonal and low-frequency corridors report irregularly. A blank is not a closed route or an expensive one.

Related

• BKK → SIN
• HKT → SIN
• DMK → SIN
• CNX → SIN