Cheap flights from Saint Louis to Phoenix
Compare hundreds of airlines Saint Louis–Phoenix
Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from Saint Louis to Phoenix, a about 2,044 km route (around 3h nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as United Airlines, Southwest Airlines operate this route.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly Saint Louis to Phoenix?
Prices vary by season; use the price calendar to find the cheapest month.
How long is the flight from Saint Louis to Phoenix?
A nonstop flight takes about 3h and covers around 2,044 km. Connecting itineraries take longer.
Are there direct flights from Saint Louis to Phoenix?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Saint Louis to Phoenix?
United Airlines, Southwest Airlines operate this route, among others. Compare them all in the results.
When should I book Saint Louis–Phoenix flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
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Saint Louis → Phoenix · Live fares from 100+ sites — free, with no hidden fees.