Cheap flights from Phoenix to St. Louis

Choose between Allegiant Air, American Airlines, or Frontier Airlines to find the best price

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Travelers usually depart from Phoenix Sky Harbor International, Phoenix–Mesa Gateway, Phoenix, AZ Greyhound Bus stop, Phoenix, AZ - Tufesa, or Phoenix Airport when they travel from Phoenix to St. Louis. Book your trip to arrive at St. Louis Lambert International, or St. Louis Union Station. The distance between Phoenix and St. Louis is 2029 km. The most popular airlines for this route are Allegiant Air, American Airlines, Frontier Airlines, and United Airlines. Phoenix and St. Louis have 346 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Number of flights74494764-4270
Fly direct with

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

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

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Allegiant AirAAYG4NoOpens 24 days before flight
Closes 1 hours before flight
American AirlinesAALAAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo

Frequently asked questions

How long does it take to travel from Phoenix to St. Louis?
A one-way nonstop (direct) flight between Phoenix and St. Louis takes around 3.0 hours.
What is the flight distance between Phoenix and St. Louis?
The flight distance between Phoenix and St. Louis is 2029 km.
What airlines offer nonstop (direct) flights between Phoenix and St. Louis?
Several carriers operate flights between Phoenix and St. Louis. Airlines offering nonstop (direct) flights include American Airlines.
What are the most popular routes to and from Phoenix?
Travelers frequently search for route combinations, such as Phoenix and London, Edmonton, Detroit, Las Vegas, Winnipeg, Calgary, San Francisco, Manchester, San Jose, Austin, Minneapolis, Washington, D.C., Portland, Houston, Chicago, New York, Denver, Paris, Boston, Orlando.
What are the most popular routes to and from St. Louis?
Travelers frequently search for route combinations, such as St. Louis and London, Manchester, New York, Cebu, Atlanta, San Jose, Los Angeles, Orlando, Edinburgh, Houston, San Francisco, Seattle, Portland, Denver, Dallas, Glasgow, Washington, D.C., Paris, Charlotte, Reykjavik.
Which airports are there in Phoenix?
Phoenix is mainly served by Phoenix Sky Harbor International. But there are other airports nearby, including Phoenix–Mesa Gateway, Phoenix Deer Valley Airport.
What airports are near Phoenix?
The main airport in Phoenix is Phoenix Sky Harbor International. It is also served by Tucson International, Flagstaff Pulliam, Show Low Regional, Marana Regional Airport, Ernest A. Love Field.
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, General Wayne A. Downing Peoria International, Waynesville-St. Robert Regional, Central Illinois Regional, MidAmerica St. Louis, Quincy Regional, Williamson County Regional, Evansville Regional, Decatur, Abraham Lincoln Capital.
What buses and trains depart from Phoenix?
A number of bus and train companies depart from Phoenix, including Greyhound.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Phoenix and St. Louis?
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Which airlines fly between Phoenix and St. Louis?
When's the best time to travel between Phoenix and St. Louis?
What flights operate between Phoenix and St. Louis?
How many airports are there near Phoenix?
How many airports are there near St. Louis?
Is it possible to reach Phoenix by bus or train?
What time do nonstop (direct) flights between Phoenix and St. Louis depart?
What time do nonstop (direct) flights between Phoenix and St. Louis arrive?
What time do flights between Phoenix and St. Louis depart?
What time do flights between Phoenix and St. Louis arrive?

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