Cheap Flight Tickets from Phoenix (PHX) to St Louis (STL), Starting at $266

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

$539

WN Southwest Airlines • 1 stop • 8h 30m

Aug 30 – Sep 06

The cheapest round trip flight from Phoenix to St Louis (PHX-STL-PHX) is currently $539

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Cheapest Direct Flight

$266

WN Southwest Airlines • nonstop • 4h 10m

Oct 03

The cheapest nonstop flight from Phoenix to St Louis (PHX-STL) is currently $266

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Fastest Flight

4h 10m

The fastest nonstop flight from Phoenix to St Louis (PHX-STL) takes 4h 10m

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.

Aug 30 - Sep 06, Economy
WN
Phoenix → St Louis
8h 30m
4:55 PM - 12:05 AM • 1 stop
WN
Phoenix → St Louis
5h 10m
7:45 PM - 8:55 PM • nonstop
$539
Southwest Airlines
Aug 30 - Sep 06, Economy
WN
Phoenix → St Louis
4h 15m
6:05 PM - 11:00 PM • nonstop
WN
Phoenix → St Louis
8h 25m
10:40 AM - 1:45 PM • 1 stop
$539
Southwest Airlines
Aug 30 - Sep 06, Economy
WN
Phoenix → St Louis
8h 40m
1:20 PM - 8:40 PM • 1 stop
WN
Phoenix → St Louis
5h 10m
10:40 AM - 11:50 AM • nonstop
$539
Southwest Airlines
Aug 30 - Sep 06, Economy
WN
Phoenix → St Louis
8h 25m
11:00 AM - 6:05 PM • 1 stop
WN
Phoenix → St Louis
5h 10m
10:40 AM - 11:50 AM • nonstop
$539
Southwest Airlines
Aug 30 - Sep 06, Economy
WN
Phoenix → St Louis
8h 25m
11:00 AM - 6:05 PM • 1 stop
WN
Phoenix → St Louis
9h 10m
10:40 AM - 2:30 PM • 1 stop
$548
Southwest Airlines
Aug 30 - Sep 06, Economy
WN
Phoenix → St Louis
8h 30m
4:55 PM - 12:05 AM • 1 stop
WN
Phoenix → St Louis
9h 5m
3:40 PM - 7:25 PM • 1 stop
$548
Southwest 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 5:45 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 539
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 6:05 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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