Cheap flights from Phoenix to Saint Louis
Compare hundreds of airlines Phoenix–Saint Louis
Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from Phoenix to Saint Louis, 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 Phoenix to Saint Louis?
Prices vary by season; use the price calendar to find the cheapest month.
How long is the flight from Phoenix to Saint Louis?
A nonstop flight takes about 3h and covers around 2,044 km. Connecting itineraries take longer.
Are there direct flights from Phoenix to Saint Louis?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Phoenix to Saint Louis?
United Airlines, Southwest Airlines operate this route, among others. Compare them all in the results.
When should I book Phoenix–Saint Louis 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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Phoenix → Saint Louis · Live fares from 100+ sites — free, with no hidden fees.