DFW Airport is about 2.1 times smaller than Manhattan.

Manhattan is approximately 55 km² (21 sq mi), while DFW Airport is approximately 27 km² (10 sq mi), making DFW Airport 48.59% the size of Manhattan.
Tip: This to-scale comparison of Manhattan vs. DFW Airport uses the Mercator projection, which distorts the size of regions near the poles.
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