The opposite side of the world from Madrid (MAD)
Adolfo Suárez Madrid–Barajas Airport — 40.49°N, 3.57°W
Exact antipodal point
40.49°S, 176.43°E
Nearest airport to that point
Palmerston North, New Zealand PMR
Palmerston North Airport
This is a genuinely close pairing — the airport sits just 71 km from the exact antipodal point.
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Of the maximum possible
99.6%
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.