Find cheap flight tickets from St. Louis (STL) to Phoenix (PHX). Cheapest fare starts from $405.
St. Louis
STL
→
Phoenix
PHX
10/14/2025 – 10/21/2025
Cheap flight deals from St. Louis to Phoenix
Average price start from:
i
$230
Round-trip flights from St. Louis to Phoenix starting at $230. Book now for the best deals!
One-way from:
i
$52
One-way flights from St. Louis to Phoenix starting at $52. Great for flexible travel!
Cheapest day:
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Thursday
Thursday is the cheapest day to fly from St. Louis to Phoenix. Save more by booking on this day!
Cheapest In:
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$78
Apr 2025
Apr 2025 is the cheapest month to fly from St. Louis to Phoenix with prices starting at $78.
Find flight deals from St. Louis to Phoenix
Cheapest flights from St. Louis to Phoenix
ONEWAY FLIGHTS
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Explore the cheapest oneway flights from St. Louis to Phoenix spotted daily.
STL
St. Louis
STL - St. Louis • 2025-10-14 • 09:00
Unknown
60 min
PHX
Unknown City
$52
Non-stop • 60 min
STL
St. Louis
STL - St. Louis • 2025-10-14 • 09:00
Unknown
60 min
PHX
Unknown City
$107
Non-stop • 60 min
STL
St. Louis
STL - St. Louis • 2025-10-14 • 09:00
Unknown
60 min
PHX
Unknown City
$159
Non-stop • 60 min
STL
St. Louis
STL - St. Louis • 2025-10-14 • 09:00
Unknown
60 min
PHX
Unknown City
$171
Non-stop • 60 min
STL
St. Louis
STL - St. Louis • 2025-10-14 • 09:00
Unknown
60 min
PHX
Unknown City
$172
Non-stop • 60 min
STL
St. Louis
STL - St. Louis • 2025-10-14 • 09:00
Unknown
60 min
PHX
Unknown City
$182
Non-stop • 60 min
STL
St. Louis
STL - St. Louis • 2025-10-14 • 09:00
Unknown
60 min
PHX
Unknown City
$183
Non-stop • 60 min
STL
St. Louis
STL - St. Louis • 2025-10-14 • 09:00
Unknown
60 min
PHX
Unknown City
$218
Non-stop • 60 min
Price Trends & Analysis
Weekly Price Trends
If your flying dates are flexible, consider flying to Phoenix on a Thursday.
Monthly Price Trends
Lowest fares from St. Louis to Phoenix typically available in May.
Weather & Climate Information
Temperature
Phoenix features a hot desert climate with extremely hot summers and mild winters. Average high temperatures in summer often exceed 40°C (104°F), while winter highs are typically around 20°C (68°F). Rainfall is scarce, with most precipitation occurring during the monsoon season from July to September.[5]
Rainfall
The best time to visit Phoenix is from November to April, when temperatures are mild and ideal for outdoor activities, sightseeing, and festivals.[5]
Airlines at Phoenix
Discover excellent flight options from St. Louis to Phoenix with top airlines including Frontier Airlines, Spirit Airlines, United Airlines, Delta Air Lines. These carriers offer reliable service and comfortable connections between these popular destinations.
The average flight time is approximately 10-15 hours, with most routes featuring one stopover for optimal pricing and convenience. When planning your journey from St. Louis to Phoenix, these airlines provide excellent connectivity and modern aircraft for a pleasant travel experience.
Places to Visit in Phoenix
Nestled in the heart of the Sonoran Desert, Phoenix dazzles with its stunning sunsets and vibrant arts scene, making it a unique urban oasis. Visitors can explore the rich history at the Desert Botanical Garden, marvel at Native American heritage at the Heard Museum, or hike the iconic Camelback Mountain for breathtaking views. With its warm climate and lively festivals, Phoenix invites travelers to immerse themselves in a tapestry of culture, adventure, and natural beauty that leaves an indelible mark on the soul.
About Phoenix
Experience the wonders of Phoenix on your flight from St. Louis. Located in a fascinating region, this destination offers City information not available
Phoenix was founded in 1867 as an agricultural community near the Salt River and incorporated as a city in 1881. Its growth accelerated with the arrival of the railroad in the 1880s and the construction of major irrigation projects, transforming it into a major metropolitan area. Today, Phoenix is the fifth-largest city in the United States, known for its rapid expansion and blend of Native American, Hispanic, and Western influences.[5]
The ideal time to explore Phoenix is during Peak tourist season in Phoenix is from January to April, coinciding with pleasant weather and major events such as baseball spring training.[5], when the climate is perfect for sightseeing and outdoor adventures.
Get the best value for your money by booking flights from St. Louis to Phoenix in May and opting for Thursday departures. Dive into the local culture and discover the culinary treasures of Phoenix.
Airlines Flying from St. Louis to Phoenix
Discover excellent flight options from St. Louis to Phoenix with top airlines including Frontier Airlines, Spirit Airlines, United Airlines, Delta Air Lines. These carriers offer reliable service and comfortable connections between these popular destinations.
The average flight time is approximately 10-15 hours, with most routes featuring one stopover for optimal pricing and convenience. When planning your journey from St. Louis to Phoenix, these airlines provide excellent connectivity and modern aircraft for a pleasant travel experience.
Hotels in Phoenix
Accommodations near PHX Airport provide excellent connectivity for travelers visiting Phoenix. Look for hotels with shuttle services and modern amenities.
Airport Statistics
As a premier transportation hub, the airport offers extensive connectivity with multiple international and domestic flight routes, facilitating seamless passenger movement through its well-coordinated air traffic management systems. Featuring state-of-the-art facilities, including advanced check-in kiosks, lounges, and efficient baggage handling services, the airport ensures a streamlined travel experience, catering to the diverse needs of its passengers.
About Phoenix
Experience the wonders of Phoenix on your flight from St. Louis. Located in a fascinating region, this destination offers City information not available
Phoenix was founded in 1867 as an agricultural community near the Salt River and incorporated as a city in 1881. Its growth accelerated with the arrival of the railroad in the 1880s and the construction of major irrigation projects, transforming it into a major metropolitan area. Today, Phoenix is the fifth-largest city in the United States, known for its rapid expansion and blend of Native American, Hispanic, and Western influences.[5]
The ideal time to explore Phoenix is during Peak tourist season in Phoenix is from January to April, coinciding with pleasant weather and major events such as baseball spring training.[5], when the climate is perfect for sightseeing and outdoor adventures.
Get the best value for your money by booking flights from St. Louis to Phoenix in May and opting for Thursday departures. Dive into the local culture and discover the culinary treasures of Phoenix.
Places to Visit in Phoenix
Nestled in the heart of the Sonoran Desert, Phoenix dazzles with its stunning sunsets and vibrant arts scene, making it a unique urban oasis. Visitors can explore the rich history at the Desert Botanical Garden, marvel at Native American heritage at the Heard Museum, or hike the iconic Camelback Mountain for breathtaking views. With its warm climate and lively festivals, Phoenix invites travelers to immerse themselves in a tapestry of culture, adventure, and natural beauty that leaves an indelible mark on the soul.
Hotels in Phoenix
Accommodations near PHX Airport provide excellent connectivity for travelers visiting Phoenix. Look for hotels with shuttle services and modern amenities.
Airlines Flying from St. Louis to Phoenix
Discover excellent flight options from St. Louis to Phoenix with top airlines including Frontier Airlines, Spirit Airlines, United Airlines, Delta Air Lines. These carriers offer reliable service and comfortable connections between these popular destinations.
The average flight time is approximately 10-15 hours, with most routes featuring one stopover for optimal pricing and convenience. When planning your journey from St. Louis to Phoenix, these airlines provide excellent connectivity and modern aircraft for a pleasant travel experience.
Frequently Asked Questions
How much does it cost to fly from St. Louis to Phoenix?
Flight prices start from $52 for this route. Save more by booking during May and choosing Thursday departures.
What's the flight duration from St. Louis to Phoenix?
The typical flight time is approximately 10-15 hours, with most routes featuring one stopover for better pricing and convenience.
What airlines serve the St. Louis to Phoenix route?
Several airlines operate flights including Frontier Airlines, Spirit Airlines, United Airlines. Compare schedules and prices to find the best option for your travel needs.
When should I book my flight for the best price?
For optimal savings, book 2-3 months ahead and consider traveling during May when demand is lower.
Where can I stay near PHX Airport?
There are several hotels near PHX Airport with convenient shuttle services. Many offer comfortable accommodations for both business and leisure travelers.
What makes Phoenix worth visiting?
Phoenix combines rich cultural heritage with modern attractions. Visit during Peak tourist season in Phoenix is from January to April, coinciding with pleasant weather and major events such as baseball spring training.[5] to experience the city at its best.
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