Cheap flights from St. Louis to Phoenix from $109

Travelers frequently search for route combinations, such as St. Louis and Las Vegas, Cancún, Orlando, Los Angeles, San Francisco, Denver, Mexico City, Tuxtla Gutiérrez, Toronto, Ottawa, Lima, Buenos Aires, Cali, Sydney, Warsaw, San José, Washington, D.C., Reykjavik, Fort Lauderdale, Melbourne.

Travelers frequently search for route combinations, such as Phoenix and Los Angeles, Chicago, Dallas, Seattle, Vancouver, Portland, Las Vegas, Calgary, San Francisco, Minneapolis, Salt Lake City, Sacramento, Mexico City, Denver, Orlando, Guadalajara, New York, Detroit, Washington, D.C., Edmonton.

The main airport in St. Louis is St. Louis Lambert International. It is also served by St. Louis Lambert International, Evansville Regional, General Wayne A. Downing Peoria International, Abraham Lincoln Capital, Columbia Regional, MidAmerica St. Louis, Central Illinois Regional, Waynesville-St. Robert Regional, Cape Girardeau Regional, Quincy Regional.

The main airport in Phoenix is Phoenix Sky Harbor International. It is also served by Tucson International, Show Low Regional, Ernest A. Love Field, Flagstaff Pulliam.

Currently, you can fly between St. Louis and Phoenix with Frontier Airlines, United Airlines, Allegiant Air, BREEZE, Alaska Airlines.

If you don’t have specific dates for your trip between St. Louis and Phoenix, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between St. Louis and Phoenix, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around St. Louis. The main one is St. Louis Lambert International and other nearby airports include St. Louis Lambert International, Evansville Regional, General Wayne A. Downing Peoria International, Abraham Lincoln Capital, Columbia Regional, MidAmerica St. Louis, Central Illinois Regional, Waynesville-St. Robert Regional, Cape Girardeau Regional, Quincy Regional

There are a number of airports in and around Phoenix. The main one is Phoenix Sky Harbor International and other nearby airports include Tucson International, Show Low Regional, Ernest A. Love Field, Flagstaff Pulliam.