The opposite side of the world from Hangzhou (HGH)
Hangzhou Xiaoshan International Airport — 30.24°N, 120.43°E
Exact antipodal point
30.24°S, 59.57°W
Nearest airport to that point
Parana, Argentina PRA
General Urquiza Airport
This is a genuinely close pairing — the airport sits just 194 km from the exact antipodal point.
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Of the maximum possible
99%
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.