Search flights from Saint Louis (STL) to Phoenix (PHX)

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Cheapest flights to Phoenix

The cheapest flights available in the next 60 days – prices are updated regularly

Flying from Saint Louis to Phoenix: things to know

The most popular route is from Lambert - St. Louis International Airport in Saint Louis to Phoenix Sky Harbor International Airport in Phoenix. On average this flight takes 4 hours 56 minutes one-way and costs $610 round-trip.

Most popular route
Lambert - St. Louis International Airport (STL) to Phoenix Sky Harbor International Airport (PHX)
Average flight time
4 hours 56 minutes
Average round-trip price
$610
Fly from Saint Louis to Phoenix
6 airlines

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Airlines that fly from Saint Louis to Phoenix

Airline options may vary according to recently booked flights and your search terms

  • American Airlines
  • Frontier Airlines
  • United Airlines
  • Spirit Airlines
  • Southwest Airlines
  • Southern Airways Express

Frequently asked questions

Fly to more destinations from Saint Louis

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