- Fastest outbound flight
- Fastest inbound flight
- non-stop flights
- 40x / week
- Flight distance
- 2,029 km
- Time difference
- Most popular airlines
- Southwest Airlines
- American Airlines
- Southwest Airlines
Flight schedule from St. Louis (STL) to Phoenix - Sky Harbor (PHX)
Select a travel date in the flight schedule for the route from St. Louis (STL) to Phoenix - Sky Harbor (PHX) and compare affordable flight deals.
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Matching outbound flightsSTL–PHX · 21 of 21
fromto
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durationstopovers
- September 13 – 19, 2026
- September 20 – 26, 2026
- Sep 27 – Oct 3, 2026
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
- STLPHXnonstop
Tips and tricks to help you find cheap flights from St. Louis to Phoenix Sky Harbor
Favorite airline: Spirit Airlines
Spirit Airlines is the most popular airline for flights from St. Louis to Phoenix - Sky Harbor.
Spirit Airlines
30 %
Frontier Airlines
22 %
American Airlines
14 %
Important flight information
Frequently Asked Questions (FAQ)
How long is the flight from St. Louis to Phoenix - Sky Harbor?
A nonstop flight from St. Louis to Phoenix - Sky Harbor typically takes around 3 hours 25 minutes. This makes the nonstop service the fastest and most convenient way to travel between St. Louis and Phoenix - Sky Harbor. It is worth checking flight times when searching, as they can vary by airline and travel date.
Are there nonstop flights from St. Louis to Phoenix - Sky Harbor?
Yes, there are nonstop flights from St. Louis to Phoenix - Sky Harbor, averaging around 5 to 6 flights per day, operated by, among others, Southwest and American Airlines. If you want to fly without a layover, it is worth filtering specifically for nonstop flights when searching.
Which airlines fly from St. Louis to Phoenix - Sky Harbor?
Direct flights from St. Louis to Phoenix - Sky Harbor are operated by, among others, Southwest and American Airlines. These flights take you to Phoenix - Sky Harbor nonstop, making them especially practical for short trips or weekend getaways. It is still worth comparing departure times and airline policies, as baggage rules and fees can vary.
On which days are there nonstop flights from St. Louis to Phoenix - Sky Harbor?
Nonstop flights from St. Louis to Phoenix - Sky Harbor operate daily. The schedule may vary by season, so it is worth comparing several travel dates. If your preferred day does not have a nonstop flight, nearby departure days or short connecting flights may be a good alternative.
How many flights are there per day from St. Louis to Phoenix - Sky Harbor?
From St. Louis to Phoenix - Sky Harbor, there are on average around 5 to 6 flights per day. This usually means you have a good choice of departure times. If you are flexible, you can easily compare times, prices, and airlines.
How many flights per week are there from St. Louis to Phoenix - Sky Harbor?
From St. Louis to Phoenix - Sky Harbor, there are around 40 to 41 flights per week. This means you usually have connections available on several days and at various times. Beyond the price, it is worth comparing flight duration, airline, and any potential additional fees.
When does the first flight from St. Louis to Phoenix - Sky Harbor depart?
The earliest nonstop flight from St. Louis to Phoenix - Sky Harbor usually departs at 5:05 AM. The exact departure time may vary by day of the week and airline. Early flights are especially useful if you want to make the most of your arrival day in Phoenix - Sky Harbor.
When does the last flight from St. Louis to Phoenix - Sky Harbor depart?
The last nonstop flight from St. Louis to Phoenix - Sky Harbor usually departs at 10:45 PM. Late flights can be convenient if you want to travel after work or in the evening. Do check whether it is a nonstop flight, as a connecting itinerary could push the arrival time significantly later.