American Airlines and United Airlines operate nonstop flights from St Louis (STL) to Chicago (ORD). The nonstop flight takes around ~0h 31m, covering 258 miles (415 km). Updated 28 June 2026.
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Yes, American Airlines and United Airlines operate nonstop flights from St Louis (STL) to Chicago (ORD).
American Airlines, United Airlines operate nonstop flights from St Louis to Chicago.
The nonstop flight from St Louis to Chicago takes ~0h 31m (approximately 415 km).