Direct flights from St Louis to Phoenix STL → PHX
American Airlines, Frontier Airlines and Southwest Airlines operate nonstop flights from St Louis (STL) to Phoenix (PHX). The nonstop flight takes around ~2h 32m, covering 1,259 miles (2,026 km). Updated 28 June 2026.
STL
→
PHX
Round trip
1 adult
Economy
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American Airlines
AA
Frontier Airlines
F9
Southwest Airlines
WN
Departure Schedule next 7 days
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Frequently asked questions
Is there a direct flight from St Louis to Phoenix?
Yes, American Airlines, Frontier Airlines and 1 more airline operate nonstop flights from St Louis (STL) to Phoenix (PHX).
Which airlines fly direct from St Louis to Phoenix?
American Airlines, Frontier Airlines, Southwest Airlines operate nonstop flights from St Louis to Phoenix.
How long is the flight from St Louis to Phoenix?
The nonstop flight from St Louis to Phoenix takes ~2h 32m (approximately 2026 km).