Cheap flights from Saint Louis to Phoenix
Travel > North America > United States > Saint Louis to Phoenix flights
Travel tip: The Superstition Mountain in Arizona, east of Phoenix was created 29 million years ago and it is the main character of many ancient Native American and more modern legends. Several tribes have different myths about the mountain, according to the Pima and Apache beliefs, the mountain is the home of evil spirits that make the loud rumbling noise that is coming from the mountain. The Pima Indians do not cross the mountain. There are several modern legends about the gold of the Aztecs, a lost...Check our current prices for flights from Saint Louis to Phoenix. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Saint Louis to Phoenix, you will need to run a search below.
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Cheap Phoenix airfares from $138/RT are provided by Cheapoair.com. Outbound flight is leaving on 02/21/2025, 06:59 pm from St. Louis Intl (STL) airport and arrives at Phoenix Intl (PHX) at 05:01 pm. The flight time is 22 hours and 2 minutes. The Returning flight departes on 03/03/2025, 10:53 pm (other return dates are also available). Date posted: 28 Dec 2024
Price evolution for flights From Saint Louis To Phoenix

Recent Deals on Flights from Saint Louis to Phoenix:Roundtrip / Oneway
- $138
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Saint Louis, MO (STL) Phoenix, AZ (PHX) 02/21/2025 06:59 pm Phoenix, AZ (PHX) Saint Louis, MO (STL) 03/03/2025 10:53 pm - $200
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Saint Louis, MO (STL) Phoenix, AZ (PHX) 03/28/2025 07:03 pm Phoenix, AZ (PHX) Saint Louis, MO (STL) 04/04/2025 08:52 pm - We are sorry but currently there are no oneway offers for flights from Saint Louis to Phoenix.
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