$55+ Cheap flights from Tempe, AZ to St. Louis (STL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Tempe to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Tempe to St. Louis
Cheapest flights from Tempe to St. LouisExplore the most affordable flight options available from Tempe to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
Explore the most affordable flight options available from Tempe to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
This Frontier deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flight deals from Tempe to St. Louis
Keep the following information in mind while searching for Tempe to St. Louis flight deals. Data was last updated January 29, 2026.
Round-trip from | $123 (Frontier) |
|---|---|
One-way from | $55 (Kiwi.com) |
Popular in | April |
Cheapest in | December |
Average price | $337 |
Cheapflights Fare Finder
Use the filters below to find and compare flights from Tempe to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Thu 2/19
1:22 pm-1:09 pm
1 stop22h 47m
Lambert-St Louis
Mon 2/23
8:47 pm-11:28 pm
Nonstop3h 41m
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Sat 2/28
5:10 pm-6:51 am
2 stops36h 41m
Lambert-St Louis
Wed 3/4
5:18 pm-11:59 pm
1 stop7h 41m
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Mon 2/23
9:39 pm-3:53 pm
2 stops41h 14m
Lambert-St Louis
Mon 3/2
10:11 pm-1:55 pm
1 stop16h 44m
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Tue 2/24
8:00 pm-3:53 pm
2 stops18h 53m
Lambert-St Louis
Tue 3/3
3:49 pm-10:12 pm
1 stop31h 23m
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Mon 3/2
6:00 am-1:09 pm
1 stop6h 09m
Lambert-St Louis
Tue 3/3
3:49 pm-10:12 pm
1 stop31h 23m
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Mon 3/23
8:27 pm-11:19 am
1 stop12h 52m
Lambert-St Louis
Wed 3/25
8:12 pm-7:42 am
1 stop13h 30m
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Wed 4/15
8:02 pm-9:00 pm
1 stop22h 58m
Lambert-St Louis
Sat 4/18
8:12 pm-11:47 pm
1 stop5h 35m
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Wed 2/18
8:04 pm-9:26 pm
1 stop24h 22m
Lambert-St Louis
Fri 2/20
1:59 pm-8:12 am
1 stop19h 13m
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Fri 2/27
4:14 pm-8:07 pm
Nonstop2h 53m
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Sat 2/28
6:00 am-1:56 pm
1 stop6h 56m
Best time to book a flight from Tempe to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Tempe with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Tempe to St. Louis
How far ahead should I book a flight from Tempe to St. Louis?
Use this chart to determine the optimal time to book a round-trip flight from Tempe to St. Louis. Price data was last updated on January 23, 2026.
The best time to book flights from Tempe to St. Louis is 25 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Tempe to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Tempe to St. Louis (average of $96). Flying from Tempe to St. Louis in April is currently the most expensive (average of $300). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from TM9 to STL?
Find hourly flight availability from Tempe to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 6% on flights from Tempe to St. Louis by exploring options for tickets in the afternoon.
What is the cheapest day to fly from Tempe to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from Tempe to St. Louis. Price data was last updated on January 24, 2026.
Travelers seeking maximum savings on their Tempe to St. Louis flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Tempe to St. Louis
Explore weekly flight availability from Tempe to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 29, 2026.
The most flights from TM9 to STL are scheduled on a Thursday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated January 29, 2026.
See what other customers who have flown with Southwest, Delta, and American Airlines from Tempe to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Entertainment
Comfort
Food
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Boarding
Entertainment
Comfort
Food
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Boarding
Entertainment
Comfort
Food
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Boarding
Entertainment
Comfort
Food
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Boarding
Entertainment
Comfort
Food
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Tempe to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
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Alternative routes for Tempe to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Tempe to St. Louis
Discover the top 4 airlines that operate flights from Tempe to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$107 | Average$216 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$229 | Average$390 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$367 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$260 | Average$396 | FlexibilityNo cancel fee | On-time63% |