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- Passengers: 19,760 (36.3% of all passengers)
- Top carriers:
--- #1. Air Wisconsin Airlines Corp: 10,562
--- #2. SkyWest Airlines: 9,198

#2. Chicago O'Hare International (Chicago, IL)

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- Passengers: 34,592 (63.5% of all passengers)
- Top carriers:
--- #1. Piedmont Airlines: 34,592

This story features data reporting by Rob Powell, writing by Jaimie Etkin, and is part of a series utilizing data automation across 199 metros.

#1. Charlotte Douglas International (Charlotte, NC)