Cheap Flight Tickets from Phoenix (PHX) to St Louis (STL), Starting at $258

Good to Know: Cheapest and Fastest PHX - STL Flights

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

Cheapest Round Trip Flight

$272

WN Southwest Airlines • 1 stop • 8h 30m

Sep 01 – Sep 30

The cheapest round trip flight from Phoenix to St Louis (PHX-STL-PHX) is currently $272

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Cheapest Direct Flight

$258

WN Southwest Airlines • nonstop • 4h 15m

Sep 01

The cheapest nonstop flight from Phoenix to St Louis (PHX-STL) is currently $258

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Fastest Flight

4h 15m

The fastest nonstop flight from Phoenix to St Louis (PHX-STL) takes 4h 15m

Top Airlines Flying from Phoenix to St Louis

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

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

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

Sep 01 - Sep 30, Economy
WN
Phoenix → St Louis
8h 30m
10:45 AM - 5:55 PM • 1 stop
WN
Phoenix → St Louis
7h 35m
7:00 AM - 9:55 AM • 1 stop
$272
Southwest Airlines
Sep 01 - Sep 30, Economy
DL
Phoenix → St Louis
9h
1:20 PM - 9:00 PM • 1 stop
DL
Phoenix → St Louis
10h 15m
8:00 AM - 12:15 PM • 1 stop
$279
Delta Airlines
Sep 01 - Sep 30, Economy
DL
Phoenix → St Louis
40h 1m
9:45 AM - 11:46 AM • 2 stops
DL
Phoenix → St Louis
10h 15m
8:00 AM - 12:15 PM • 1 stop
$288
Delta Airlines
Sep 01 - Sep 30, Economy
DL
Phoenix → St Louis
12h 12m
7:12 AM - 4:44 PM • 1 stop
DL
Phoenix → St Louis
18h 31m
2:25 PM - 11:36 PM • 2 stops
$291
Delta Airlines
Sep 01 - Sep 30, Economy
DL
Phoenix → St Louis
34h 15m
9:42 AM - 8:37 AM • 1 stop
DL
Phoenix → St Louis
18h 31m
2:25 PM - 11:36 PM • 2 stops
$295
Delta Airlines
Sep 01 - Sep 30, Economy
DL
Phoenix → St Louis
15h 28m
11:58 AM - 11:26 PM • 1 stop
DL
Phoenix → St Louis
18h 31m
2:25 PM - 11:36 PM • 2 stops
$295
Delta Airlines

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

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

FAQs on Phoenix to St Louis Flights

What are the airports in Phoenix?
PHX
What’s the most popular airline flying from PHX to STL?
The most popular airline flying from Phoenix to St Louis are
Can I fly from PHX to STL non-stop?
Yes, you can fly PHX to STL non-stop on
Which airlines fly nonstop between Phoenix and St Louis?
The non-stop flights between Phoenix and St Louis are .
What’s the earliest departure time from PHX to STL Airport?
The earliest flight leaves PHX at 6:00 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Phoenix to St Louis 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 PHX to STL?
Read the fare rules of the Phoenix to St Louis 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 Phoenix and St Louis?
operate flights between Phoenix and St Louis
How long does a flight from Phoenix to St Louis take?
It takes approximately 3 hour to fly non-stop from PHX to STL, which is 1261.81 miles by air.
Which airlines provide the cheapest flights from Phoenix (PHX) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from PHX were found on WN : USD 272
Do I need a passport to fly between PHX and STL?
No
What’s the latest departure time from PHX to STL ?
The last flight leaves PHX at 6:55 pm

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

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

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