Distance From Castle Airport to Singapore Changi Airport, MER - SIN Distance

The distance from Castle Airport (MER) to Singapore Changi Airport (SIN) is 8532 miles or 13731 kilometers or 7409 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Merced ( United States ) to Singapore ( Singapore )?

A one-way nonstop (direct) flight between Merced and Singapore takes around 19 hours 36 minutes.

Estimated flight time from Castle Airport, Merced, United States to Singapore Changi Airport, Singapore, Singapore is 19 hours 36 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • MER - SIN

Kilometers		13731 km
Statute Miles		8532 miles
Nautical Miles		7409 nm
Avg. Time of Flight		19 hours 36 minutes

Castle Airport to Singapore Changi Airport Flight Route Map - MER to SIN Flight Path

Location of Castle Airport & Singapore Changi Airport is given below.
Click the map to view Merced to Singapore nonstop flight path and travel direction.

Click to see flight route on Google Map between Merced, United States and Singapore, Singapore. .

Nonstop flight route between Merced, United States and Singapore, Singapore.

Time Difference Between the Airports • MER - SIN

Time difference between Merced (United States) and Singapore (Singapore) is 16 Hours.
Singapore time is 16 Hours ahead of Merced.

Location	Local Time
Merced (United States)	2025-12-16, 04:02:55 PST
Singapore (Singapore)	2025-12-16, 20:02:55 +08

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Castle Airport (MER / KMER) Merced, United States

Destination

Singapore Changi Airport (SIN / WSSS) Singapore, Singapore