$49+ Cheap flights from St. Louis (STL) to Phoenix

Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Phoenix from St. Louis. Booking flights from Lambert-St Louis (STL) to Phoenix should be relatively easy as there are 3 daily outbound flights to Phoenix from 6 different airlines.

Airlines like United Airlines and Southwest fly from St. Louis to Phoenix in about 4h 50m. The time it takes to get you to your destination can typically vary by up to 1h 09m. The distance from St. Louis to Phoenix is about 1258 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

Currently priced at $94, Frontier will fly you from St. Louis to Phoenix and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Delta - these airlines can fly you to your destination from $121 and $169, respectively. These flights start at 74% lower than the current average price 3 months from now.

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $59. Users have also found prices from $143 and $148 on Southwest and American Airlines, respectively.

No one likes to see their flight delayed. When booking a flight from St. Louis to Phoenix consider choosing Frontier (88%), American Airlines (79%) or Alaska Airlines (79%) as they are the most reliable in getting you off to your destination on time.

While on average a flight from St. Louis to Phoenix is generally $833, our data shows the cheapest flight currently is $79. When looking at the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl), you can expect to pay $163 for that flight.

Yes. In addition to deals on St. Louis to Phoenix flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Phoenix.

Yes. Cheapflights offers flight deals from St. Louis to Phoenix by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Currently, October is the cheapest month in which you can book a flight from St. Louis to Phoenix (average of $107). Flying from St. Louis to Phoenix in June is currently the most expensive (average of $235). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.