Cheap Flight Tickets from St Louis (STL) to Phoenix (PHX), Starting at $243

Good to Know: Cheapest and Fastest STL - PHX Flights

Useful information for finding best airline tickets from Lambert St Louis International to Phoenix Sky Harbor International on your next trip.

Cheapest Round Trip Flight

$407

WN Southwest Airlines • 1 stop • 10h 15m

Aug 26 – Aug 30

The cheapest round trip flight from St Louis to Phoenix (STL-PHX-STL) is currently $407

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Cheapest One way Flight

$243

F9 Frontier Airlines • 2 stops • 73h 37m

Sep 17

The cheapest one way flight from St Louis to Phoenix (STL-PHX) is currently $243

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Cheapest Direct Flight

$397

WN Southwest Airlines • nonstop • 5h 15m

Aug 26

The cheapest nonstop flight from St Louis to Phoenix (STL-PHX) is currently $397

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Fastest Flight

5h 10m

The fastest nonstop flight from St Louis to Phoenix (STL-PHX) takes 5h 10m

Latest Flight Deals from St Louis (STL) to Phoenix (PHX)

Compare and book low fare round-trip air tickets from St Louis to Phoenix. Ideal for travelers with confirmed return itineraries.

Aug 26 - Aug 30, Economy
WN
St Louis → Phoenix
10h 15m
4:05 PM - 8:20 PM • 1 stop
WN
St Louis → Phoenix
4h 15m
5:45 AM - 10:40 AM • nonstop
$407
Southwest Airlines
Aug 26 - Aug 30, Economy
WN
St Louis → Phoenix
5h 15m
5:00 PM - 6:15 PM • nonstop
WN
St Louis → Phoenix
13h 40m
7:50 AM - 6:10 PM • 1 stop
$407
Southwest Airlines
Aug 26 - Aug 30, Economy
WN
St Louis → Phoenix
10h 5m
8:25 AM - 12:30 PM • 1 stop
WN
St Louis → Phoenix
7h 30m
8:30 AM - 3:20 PM • 1 stop
$416
Southwest Airlines
Aug 26 - Aug 30, Economy
WN
St Louis → Phoenix
9h 5m
4:45 PM - 8:30 PM • 1 stop
WN
St Louis → Phoenix
7h 30m
8:30 AM - 3:20 PM • 1 stop
$416
Southwest Airlines
Aug 26 - Aug 30, Economy
WN
St Louis → Phoenix
9h 5m
12:20 PM - 4:05 PM • 1 stop
WN
St Louis → Phoenix
8h 40m
5:40 AM - 1:00 PM • 1 stop
$426
Southwest Airlines
Aug 26 - Aug 30, Economy
UA
St Louis → Phoenix
10h 56m
8:00 AM - 12:56 PM • 1 stop
UA
St Louis → Phoenix
11h 54m
11:32 AM - 8:46 PM • 1 stop
$471
United Airlines

Fly from St Louis to Phoenix with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from St Louis to Phoenix? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on St Louis to Phoenix Flights

What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to PHX?
The most popular airline flying from St Louis to Phoenix are
Can I fly from STL to PHX non-stop?
Yes, you can fly STL to PHX non-stop on
Which airlines fly nonstop between St Louis and Phoenix?
The non-stop flights between St Louis and Phoenix are .
What’s the earliest departure time from STL to PHX Airport?
The earliest flight leaves STL at 7:35 am and lands in PHX - Phoenix Sky Harbor International
What are the airports in Phoenix?
PHX
Can I make changes to my St Louis to Phoenix flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from STL to PHX?
Read the fare rules of the St Louis to Phoenix air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from St Louis and Phoenix?
operate flights between St Louis and Phoenix
How long does a flight from St Louis to Phoenix take?
It takes approximately 3 hour to fly non-stop from STL to PHX, which is 1261.81 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to Phoenix (PHX) ?
In the past couple of days, the cheapest tickets to PHX from STL were found on F9 : USD 243
Do I need a passport to fly between STL and PHX?
No
What’s the latest departure time from STL to PHX ?
The last flight leaves STL at 8:45 pm

St Louis (STL) to Phoenix (PHX): Airport Information

Origin Airport Lambert St Louis International , St Louis, US
Destination Airport Phoenix Sky Harbor International , Phoenix, US
Distance 1262 miles

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