On this page, you can book flights from St. Louis to Phoenix. The 2,048 km route is served regularly, with approximately 12 flights per week on this direction.
Flights are operated by airlines such as American Airlines, Frontier, and Alaska Airlines. Ticket prices are dynamic, so use the low-price calendar to find the best deal. For logistical planning, you can find information on how to get to the airport in St. Louis and how to get from the Phoenix airport.
The table shows direct flights St. Louis → Phoenix on the selected date. The flight takes approximately 3 h 14 min. Regular flights are operated by American Airlines, Frontier Airlines and Alaska Airlines. Departures from Lambert-St. Louis International Airport airports, arrivals at Phoenix Sky Harbor International Airport and Phoenix-Mesa Gateway Airport.
For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.
Below is a calendar of the lowest flight ticket prices for St. Louis — Phoenix by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 399 in ,, and the most expensive are around AED 966 in a. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.
St. Louis → Phoenix, average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | AED 663 | medium | May | AED 549 | low | Sep | AED 526 | low |
| Feb | AED 686 | medium | Jun | AED 869 | high | Oct | AED 503 | low |
| Mar | AED 846 | high | Jul | AED 891 | high | Nov | AED 526 | low |
| Apr | AED 823 | high | Aug | AED 709 | medium | Dec | AED 731 | medium |
Some values are estimated based on seasonality.
The climate in Phoenix is characterized by extremely hot summers, with average highs reaching 41.5°C in July. The coolest period is January, with an average low of around 5.6°C, while the majority of precipitation occurs in February and March.
The most budget-friendly flights are available in July, with prices starting AED 324. Ticket prices peak in March, when the minimum fare increases to AED 975, due to high seasonal demand.
April or October are considered the optimal times to visit in terms of balancing price and weather. During the summer months, the intense heat should be taken into account, even though flights are cheapest during this period.
Three airlines operate flights from St. Louis to Phoenix, with American Airlines and Frontier being the primary carriers. Both direct flights and connecting options are available on this route, with a total frequency of up to 12 flights per week. A detailed daily schedule and fare conditions for each operator are provided in the list below.
Flights St. Louis — Phoenix depart from Lambert-St. Louis International Airport and arrive at Phoenix Sky Harbor International Airport and Phoenix-Mesa Gateway Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.
A direct flight between these cities takes an average of 2 hours and 30 minutes, covering a flight distance of approximately 2,048 km.
Regular flights are operated by airlines such as American Airlines, Frontier, and Alaska Airlines.
Ticket prices change constantly based on demand; you can see the current minimum in the low-price calendar on this page.
Most flights from St. Louis (STL) are served at the main international airport, Phoenix Sky Harbor (PHX).
The best deals usually appear when booking 1.5–2 months before the planned departure date.
Where travelers fly most — pick a route and check prices
