$74+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
Sep 24 — Oct 11
Round-trip
1 adult, Economy
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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.Cheapflights Tip: The best prices from Tempe to Lambert-St Louis are usually found in January or October, booked 10 days in advance, depart on a Friday or Saturday and return on a Wednesday
Cheap flight deals from Tempe to St. Louis
Cheapest
Best
Last-minute
One-way
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 August 25, 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 August 25, 2026.
This American Airlines deal was found by Cheapflights users on 8/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:43 pm -
Nonstop3h 00m
Sat 10/102:31 pm -
Nonstop3h 34m
Deal found 8/25![American Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Thu 10/154:18 pm -
2 stops23h 22m
Mon 10/198:00 pm -
1 stop13h 58m
Deal found 8/25![Frontier logo]()
$281
This Cheapflightsfares deal was found by Cheapflights users on 8/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:49 pm -
1 stop19h 46m
Mon 10/194:30 pm -
1 stop30h 12m
Deal found 8/25![Frontier logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Mon 9/215:23 pm -
1 stop16h 09m
Thu 9/2412:27 pm -
2 stops13h 16m
Deal found 8/24![Frontier logo]()
$283
This Southwest deal was found by Cheapflights users on 8/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:25 pm -
Nonstop3h 00m
Mon 9/288:45 pm -
Nonstop3h 15m
Deal found 8/24![Southwest logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Sat 9/269:15 am -
1 stop8h 02m
Sun 9/275:19 pm -
2 stops21h 47m
Deal found 8/25![Frontier logo]()
$289
This Expedia deal was found by Cheapflights users on 8/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:15 am -
1 stop7h 08m
Tue 11/244:08 pm -
1 stop17h 07m
Deal found 8/25![Frontier logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Fri 9/1111:29 am -
1 stop5h 48m
Mon 9/218:10 pm -
1 stop13h 50m
Deal found 8/23![Frontier logo]()
$291
This CheapOair deal was found by Cheapflights users on 8/23. 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.
Thu 12/106:00 am -
1 stop7h 57m
Mon 12/143:52 pm -
1 stop18h 43m
Deal found 8/23![Frontier logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Sun 9/207:24 pm -
1 stop13h 53m
Mon 9/288:10 pm -
1 stop13h 50m
Deal found 8/23![Frontier logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Sat 9/129:15 am -
1 stop8h 02m
Sun 9/208:10 pm -
1 stop13h 50m
Deal found 8/23![Frontier logo]()
$295
Best flights from Tempe to St. LouisDiscover carefully curated flight deals from Tempe to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 25, 2026.
Discover carefully curated flight deals from Tempe to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 25, 2026.
This Southwest deal was found by Cheapflights users on 8/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:50 pm -
1 stop5h 40m
Mon 11/94:50 pm -
1 stop6h 15m
Deal found 8/25![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 8/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:27 pm -
1 stop5h 17m
Tue 10/137:00 pm -
1 stop5h 43m
Deal found 8/23![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 8/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:04 am -
2 stops10h 34m
Sat 9/199:23 am -
2 stops9h 46m
Deal found 8/22![United Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 8/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:35 am -
Nonstop2h 55m
Tue 11/249:45 pm -
Nonstop3h 25m
Deal found 8/25![Southwest logo]()
$341
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:45 am -
Nonstop2h 45m
Sun 11/88:25 am -
1 stop6h 20m
Deal found 8/21![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 8/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:30 am -
2 stops10h 51m
Mon 10/191:29 pm -
2 stops11h 16m
Deal found 8/21![United Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 8/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:00 pm -
1 stop4h 25m
Fri 11/209:35 am -
Nonstop3h 25m
Deal found 8/24![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am -
2 stops13h 21m
Sat 10/109:04 am -
2 stops13h 45m
Deal found 8/20![United Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 8/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/206:40 pm -
Nonstop2h 50m
Mon 2/225:50 am -
Nonstop3h 30m
Deal found 8/23![Southwest logo]()
$381
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/265:10 am -
Nonstop2h 50m
Wed 12/309:45 pm -
Nonstop3h 25m
Deal found 8/21![Southwest logo]()
$448
Last-minute flights from Tempe to St. LouisDiscover last-minute flight deals from Tempe to St. Louis. Data last updated August 25, 2026 and is based on user searches.
Discover last-minute flight deals from Tempe to St. Louis. Data last updated August 25, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Fri 9/1111:29 am -
1 stop5h 48m
Mon 9/218:10 pm -
1 stop13h 50m
Deal found 8/23![Frontier logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Fri 9/1111:29 am -
1 stop5h 48m
Fri 9/188:10 pm -
1 stop13h 50m
Deal found 8/23![Frontier logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Sat 9/129:15 am -
1 stop8h 02m
Sun 9/208:10 pm -
1 stop13h 50m
Deal found 8/23![Frontier logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Sun 9/137:24 pm -
1 stop13h 53m
Tue 9/1512:17 pm -
1 stop8h 46m
Deal found 8/23![Frontier logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Tue 9/158:39 pm -
1 stop12h 53m
Fri 9/188:10 pm -
1 stop13h 50m
Deal found 8/23![Frontier logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Fri 9/188:56 pm -
1 stop20h 21m
Sun 9/208:10 pm -
1 stop13h 50m
Deal found 8/22![Frontier logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Sun 9/207:24 pm -
1 stop13h 53m
Mon 9/288:10 pm -
1 stop13h 50m
Deal found 8/23![Frontier logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Mon 9/215:23 pm -
1 stop16h 09m
Thu 9/2412:27 pm -
2 stops13h 16m
Deal found 8/24![Frontier logo]()
$283
This Southwest deal was found by Cheapflights users on 8/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:55 pm -
Nonstop3h 00m
Mon 9/288:45 pm -
Nonstop3h 15m
Deal found 8/24![Southwest logo]()
$297
This Frontier deal was found by Cheapflights users on 8/25. 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.
Fri 9/256:25 am -
1 stop10h 52m
Mon 9/2812:17 pm -
1 stop12h 30m
Deal found 8/25![Frontier logo]()
$298
This Southwest deal was found by Cheapflights users on 8/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:25 pm -
Nonstop3h 00m
Mon 9/288:45 pm -
Nonstop3h 15m
Deal found 8/24![Southwest logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Sat 9/269:15 am -
1 stop8h 02m
Sun 9/275:19 pm -
2 stops21h 47m
Deal found 8/25![Frontier logo]()
$289
One-way flights from Tempe to St. LouisSearch for one-way flight options from Tempe to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
Search for one-way flight options from Tempe to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Sat 9/266:25 am -
1 stop10h 52m
Deal found 8/24![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Sat 10/176:15 am -
1 stop10h 42m
Deal found 8/20![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Mon 10/56:25 am -
1 stop10h 52m
Deal found 8/24![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Wed 9/309:15 am -
1 stop8h 02m
Deal found 8/25![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Sat 10/246:15 am -
1 stop10h 42m
Deal found 8/24![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Sat 9/196:25 am -
1 stop10h 52m
Deal found 8/20![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Wed 9/239:15 am -
1 stop8h 02m
Deal found 8/22![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Tue 9/228:56 pm -
1 stop20h 21m
Deal found 8/20![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Fri 9/258:56 pm -
1 stop20h 21m
Deal found 8/24![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Mon 9/143:21 pm -
2 stops43h 49m
Deal found 8/24![Frontier logo]()
$105
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 August 25, 2026.
Round-trip from | $277 (American Airlines) |
|---|---|
One-way from | $74 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $379 |
Cheapflights Fare Finder
Customize your flight search to find flights from Tempe to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 25, 2026.
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
Cheapest round-trip
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Thu 11/5
5:50 pm-12:30 am
1 stop5h 40m
Lambert-St Louis
Mon 11/9
4:50 pm-10:05 pm
1 stop6h 15m
$317
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Wed 11/18
8:35 am-12:30 pm
Nonstop2h 55m
Lambert-St Louis
Tue 11/24
9:45 pm-12:10 am
Nonstop3h 25m
$341
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Fri 10/9
5:27 pm-12:44 am
1 stop5h 17m
Lambert-St Louis
Tue 10/13
7:00 pm-10:43 pm
1 stop5h 43m
$357
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Thu 11/5
5:45 am-9:30 am
Nonstop2h 45m
Lambert-St Louis
Sun 11/8
8:25 am-1:45 pm
1 stop6h 20m
$357
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Tue 11/17
12:00 pm-5:25 pm
1 stop4h 25m
Lambert-St Louis
Fri 11/20
9:35 am-12:00 pm
Nonstop3h 25m
$377
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Sat 2/20
6:40 pm-10:30 pm
Nonstop2h 50m
Lambert-St Louis
Mon 2/22
5:50 am-8:20 am
Nonstop3h 30m
$381
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Sat 9/12
8:04 am-8:38 pm
2 stops10h 34m
Lambert-St Louis
Sat 9/19
9:23 am-5:09 pm
2 stops9h 46m
$397
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Sat 10/17
8:30 am-9:21 pm
2 stops10h 51m
Lambert-St Louis
Mon 10/19
1:29 pm-10:45 pm
2 stops11h 16m
$428
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Wed 10/7
6:00 am-9:21 pm
2 stops13h 21m
Lambert-St Louis
Sat 10/10
9:04 am-8:49 pm
2 stops13h 45m
$428
Quickest round-trip
PhoenixSt. Louis
PHX Phoenix Sky Harbor Intl - STL Lambert-St Louis
PHXSTL
Phoenix Sky Harbor Intl
Sat 12/26
5:10 am-9:00 am
Nonstop2h 50m
Lambert-St Louis
Wed 12/30
9:45 pm-12:10 am
Nonstop3h 25m
$448
Showing 1-10 of 21 resultsSorted by cheapest first
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.
PHX-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Tempe to St. Louis
TM9-STL
PHX-STL
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 August 25, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 14% on flights from Tempe to St. Louis by exploring options for tickets in the afternoon.
How much does it cost to fly round-trip from Tempe to St. Louis?
Airfare is below average for this route at the moment.
Tempe to St. Louis flights typically cost between $333 and $441 in September.The cheapest round-trip price found within the last 5 days was $277 on Southwest (Sep 22-Sep 29).
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 August 22, 2026.
Travelers seeking maximum savings on their Tempe to St. Louis flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 August 25, 2026.
See what other customers who have flown with Southwest,American Airlines, andFrontier 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.
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$99 | Average$239 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$229 | Average$388 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$285 | Average$424 | FlexibilityNo cancel fee | On-time63% |