How reliable is Singapore Changi Airport?
Month-by-month weather risk and connection guidance for Singapore Changi Airport. We don’t yet have on-time performance history here — see why below.
On-time performance data isn’t available for SIN yet
Our historical on-time and cancellation record currently covers the US, UK, Brazil, and Australia, so we don’t score departure reliability at Singapore Changi Airport yet. Connection guidance below comes from curated or observed connection data and still applies.
Weather by month
Weather history isn’t available for SIN yet
PlaneSane shows month-by-month airport weather once enough historical METAR/IEM observations are loaded for the airport. This does not mean the airport has no weather data forever; it means the current climatology table has no monthly coverage for Singapore Changi Airport.
Connecting through SIN
How much layover you really need
Allow at least this between domestic flights at SIN. Below it, one small delay risks a misconnect.
Based on 79 sellable international itineraries seen through Google Flights. Median observed layover: 95 min.
Observed windows come from normalized SearchAPI / Google Flights itineraries. They are not official airport MCTs. We score every connecting itinerary against conservative connection floors.
The read on SIN
What the numbers say about flying through Singapore Changi Airport
PlaneSane doesn't yet have on-time and cancellation history for Singapore Changi Airport, so it isn't scored for departure reliability here — that record currently covers the US, UK, Brazil, and Australia. The weather and connection context below comes from separate global sources and still applies.
If you're connecting through SIN, give yourself room. A domestic connection wants at least about 60 minutes, and international transfers around 65 minutes once immigration and a bag recheck are in the mix. Those are floors, not comfortable buffers — one inbound delay can erase them, so add margin when the connection matters.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Singapore, read how we weigh it all in how the Peace of Mind Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about SIN
- How much layover time do you need at SIN?
- Allow at least about 60 minutes for a domestic connection and about 65 minutes for an international one as a floor. These are minimums, not comfortable buffers — a single inbound delay can wipe them out, so add margin when you can.
Peace of Mind
Where to stay in Singapore
Hotels scored on cleanliness, location, price fairness, and trust — not just stars.
Reliability guides
Planning a trip through Singapore?
Score real flights to and from SIN on reliability, weather, and connection safety — not just price.
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