O'Hare Airport is around the same size as DFW Airport.

DFW Airport is approximately 27 km² (10 sq mi), while O'Hare Airport is approximately 27 km² (11 sq mi), making O'Hare Airport 3% larger than DFW Airport.
Tip: This to-scale comparison of DFW Airport vs. O'Hare Airport uses the Mercator projection, which distorts the size of regions near the poles.
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