American Airlines and United Airlines operate nonstop flights from Chicago (ORD) to St Louis (STL). The nonstop flight takes around ~0h 31m, covering 258 miles (415 km) and operates multiple daily. Updated 29 June 2026.
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Yes, American Airlines and United Airlines operate nonstop flights from Chicago (ORD) to St Louis (STL).
American Airlines, United Airlines operate nonstop flights from Chicago to St Louis.
The nonstop flight from Chicago to St Louis takes ~0h 31m (approximately 415 km).
Nonstop flights from Chicago to St Louis operate multiple daily.