Nonstop flights from St. Louis to Phoenix

2 airlines fly this route, with up to 6 flights a day.

STLSt. Louis Lambert International

1,259 mi · 35 flights a week

PHXPhoenix Sky Harbor International

STLPHX

When they leave

St. Louis time

6:00a8:45pFirst departure 6:00 AM, last 8:45 PM

Six in the morning, 6:00 AM to 11:50 AM, then one afternoon flight at 2:29 PM, then three in the evening, 5:00 PM to 8:45 PM.

Every flight

Earliest first

6:00 AM→7:15 AMSouthwest AirlinesBoeing 737Mon, Thu, Fri, Sat, Sun
6:15 AM→7:30 AMSouthwest AirlinesBoeing 737-700Sat, Sun
7:35 AM→8:50 AMSouthwest AirlinesBoeing 737-700Tue, Wed
8:00 AM→9:18 AMAmerican AirlinesBoeing 737Daily
8:30 AM→9:40 AMSouthwest AirlinesBoeing 737-700Sun
11:50 AM→1:00 PMSouthwest AirlinesBoeing 737Mon, Tue, Wed, Thu, Fri, Sat
2:29 PM→3:48 PMAmerican AirlinesBoeing 737Sun
5:00 PM→6:15 PMSouthwest AirlinesBoeing 737-700Tue, Wed
6:00 PM→7:15 PMSouthwest AirlinesBoeing 737-700Mon, Thu, Fri
8:45 PM→9:55 PMSouthwest AirlinesBoeing 737 MAX 8Mon, Tue, Wed, Thu, Fri, Sun

Schedules last checked Sep 21, 2026. Times are local.

Flying from St. Louis to Phoenix

Southwest Airlines flies most often, 3 to 4 times a day on the Boeing 737-700, Boeing 737 and Boeing 737 MAX 8. American Airlines flies 1 to 2 times a day on the Boeing 737.

Flights run every day of the week, from 4 on Saturdays to 6 on Sundays. The first arrival in Phoenix is at 7:15 AM and the last at 9:55 PM. The flight covers 1,259 miles.

Flying back, Phoenix to St. Louis has 38 nonstop flights a week.

Return flights

Phoenix to St. LouisView

Find the cheapest day to fly from St. Louis to Phoenix.

Schedules as of Oct 9, 2026.