Cheap flights from Phoenix to St. Louis from $140

Travelers frequently search for route combinations, such as Phoenix and Guadalajara, Calgary, Vancouver, Mexico City, Los Angeles, Dallas, Las Vegas, Edmonton, Toronto, San Francisco, Seattle, Chicago, London, Salt Lake City, Cancún, Atlanta, San Diego, Denver, Orlando, Portland.

Travelers frequently search for route combinations, such as St. Louis and Denver, Orlando, Las Vegas, Los Angeles, London, Dallas, Fort Lauderdale, Bogotá, Mexico City, Tokyo, Frankfurt, Cebu, San Francisco, Athens, Amsterdam, Naples, Cancún, Portland, Washington, D.C., San Diego.

Phoenix is mainly served by Phoenix Sky Harbor International. But there are other airports nearby, including Phoenix–Mesa Gateway, Phoenix Deer Valley Airport.

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.

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

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

If you don’t have specific dates for your trip between Phoenix and St. Louis, 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 Phoenix and St. Louis, 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 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