American Airlines, Frontier Airlines and Southwest Airlines operate nonstop flights from Phoenix (PHX) to St Louis (STL). The nonstop flight takes around ~2h 32m, covering 1,259 miles (2,026 km) and operates multiple daily. Updated 29 June 2026.
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Scheduled departures over the next 7 days · Updated 24d ago
Yes, American Airlines, Frontier Airlines and 1 more airline operate nonstop flights from Phoenix (PHX) to St Louis (STL).
American Airlines, Frontier Airlines, Southwest Airlines operate nonstop flights from Phoenix to St Louis.
The nonstop flight from Phoenix to St Louis takes ~2h 32m (approximately 2026 km).
Nonstop flights from Phoenix to St Louis operate multiple daily.