Cheap flights from St. Louis to Phoenix

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Travelers usually depart from St. Louis Lambert International, or St. Louis Union Station when they travel from St. Louis to Phoenix. Book your trip to arrive at Phoenix Sky Harbor International, Phoenix–Mesa Gateway, Phoenix, AZ Greyhound Bus stop, Phoenix, AZ - Tufesa, or Phoenix, AZ - Sky Train Station. The distance between St. Louis and Phoenix is 2029 km. The most popular airlines for this route are Allegiant Air, American Airlines, Delta Air Lines, United Airlines, and Spirit Airlines. St. Louis and Phoenix have 297 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights3333-33
Fly direct with

American Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Spirit Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from St. Louis to Phoenix

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Allegiant AirAAYG4NoOpens 24 days before flight
Closes 1 hours before flight
American AirlinesAALAAYesNo
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight

Frequently asked questions

How long does it take to travel from St. Louis to Phoenix?
A one-way nonstop (direct) flight between St. Louis and Phoenix takes around 3.6 hours.
What is the flight distance between St. Louis and Phoenix?
The flight distance between St. Louis and Phoenix is 2029 km.
What airlines offer nonstop (direct) flights between St. Louis and Phoenix?
Several carriers operate flights between St. Louis and Phoenix. Airlines offering nonstop (direct) flights include Spirit Airlines, American Airlines.
What are the most popular routes to and from St. Louis?
Travelers frequently search for route combinations, such as St. Louis and Las Vegas, Los Angeles, Denver, Orlando, Atlanta, Minneapolis, San Diego, San Francisco, London, Seattle, Houston, Sacramento, New York, Cancún, Washington, D.C., Fort Lauderdale, Oakland, Tampa, Paris, Dallas.
What are the most popular routes to and from Phoenix?
Travelers frequently search for route combinations, such as Phoenix and Chicago, Denver, Detroit, Washington, D.C., Atlanta, Las Vegas, Cleveland, Minneapolis, Los Angeles, Orlando, Houston, Portland, Milwaukee, Salt Lake City, Cincinnati, San Diego, Philadelphia, Raleigh, New York, Seattle.
What airports are near St. Louis?
The main airport in St. Louis is St. Louis Lambert International. It is also served by St. Louis Lambert International, Central Illinois Regional, General Wayne A. Downing Peoria International, Quincy Regional, Williamson County Regional, MidAmerica St. Louis, Evansville Regional, Abraham Lincoln Capital, Decatur, Waynesville-St. Robert Regional.
What airports are near Phoenix?
The main airport in Phoenix is Phoenix Sky Harbor International. It is also served by Tucson International, Show Low Regional, Flagstaff Pulliam, Ernest A. Love Field, Marana Regional Airport.
What buses and trains depart from St. Louis?
A number of bus and train companies depart from St. Louis, including Burlington Trailways.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between St. Louis and Phoenix?
Yes, it's possible to combine different modes of transport between St. Louis and Phoenix thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between St. Louis and Phoenix can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
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What time do nonstop (direct) flights between St. Louis and Phoenix depart?
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What time do flights between St. Louis and Phoenix depart?
What time do flights between St. Louis and Phoenix arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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