Atlanta Airport is about 1.2 times bigger than Mackinac Island.

Mackinac Island is approximately 9.54 km² (3.68 sq mi), while Atlanta Airport is approximately 11 km² (4.39 sq mi), making Atlanta Airport 19% larger than Mackinac Island.
Tip: This to-scale comparison of Mackinac Island vs. Atlanta Airport uses the Mercator projection, which distorts the size of regions near the poles.
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