The opposite side of the world from Xiamen (XMN)
Xiamen Gaoqi International Airport — 24.54°N, 118.13°E
Exact antipodal point
24.54°S, 61.87°W
Nearest airport to that point
San Salvador de Jujuy, Argentina JUJ
Gobernador Horacio Guzman International Airport
This is a genuinely close pairing — the airport sits just 327 km from the exact antipodal point.
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Of the maximum possible
98.4%
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.