Cheap Flight Tickets from Phoenix (PHX) to St Louis (STL), Starting at $312

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

$312

WN Southwest Airlines • 1 stop • 9h 5m

Nov 16 – Nov 26

The cheapest round trip flight from Phoenix to St Louis (PHX-STL-PHX) is currently $312

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Cheapest Direct Flight

$393

WN Southwest Airlines • nonstop • 4h 15m

Nov 17

The cheapest nonstop flight from Phoenix to St Louis (PHX-STL) is currently $393

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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

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska 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.

Nov 16 - Nov 26, Economy
WN
Phoenix → St Louis
9h 5m
2:35 PM - 9:20 PM • 1 stop
WN
Phoenix → St Louis
5h 20m
12:05 PM - 2:25 PM • nonstop
$312
Southwest Airlines
Nov 17 - Nov 27, Economy
WN
Phoenix → St Louis
10h
2:10 PM - 9:10 PM • 1 stop
WN
Phoenix → St Louis
5h 30m
9:45 PM - 12:15 AM • nonstop
$354
Southwest Airlines
Nov 17 - Nov 27, Economy
UA
Phoenix → St Louis
10h 59m
1:00 PM - 8:59 PM • 1 stop
UA
Phoenix → St Louis
9h 2m
1:40 PM - 6:22 PM • 1 stop
$530
United Airlines
Nov 17 - Nov 27, Economy
AA
Phoenix → St Louis
10h 46m
4:13 PM - 11:59 PM • 1 stop
AA
Phoenix → St Louis
9h 18m
12:56 PM - 5:54 PM • 1 stop
$530
American Airlines
Nov 17 - Nov 27, Economy
F9
Phoenix → St Louis
27h 4m
9:59 PM - 3:23 PM • 1 stop
F9
Phoenix → St Louis
50h 28m
6:35 PM - 12:03 AM • 2 stops
$556
Frontier Airlines
Nov 16 - Nov 26, Economy
AA
Phoenix → St Louis
10h 53m
3:40 PM - 11:33 PM • 1 stop
AA
Phoenix → St Louis
8h 58m
9:07 AM - 1:45 PM • 1 stop
$560
American 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 F9 : USD 556
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 9:59 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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