The opposite side of the world from Singapore (SIN)
Singapore Changi Airport — 1.35°N, 103.99°E
Exact antipodal point
1.35°S, 76.01°W
Nearest airport to that point
Coca, Ecuador OCC
Francisco De Orellana Airport
This is a genuinely close pairing — the airport sits just 147 km from the exact antipodal point.
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Of the maximum possible
99.3%
No two points on Earth can be more than about 20,015 km apart.
The antipode is found by negating the latitude and shifting the longitude by 180°. Distances use the haversine formula on a sphere of mean radius 6,371.0088 km. Airport coordinates come from the public-domain OurAirports dataset.