$34+ Cheap flights from St. Louis (STL) to Arizona
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Nov 4 — Nov 111
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Arizona 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 St. Louis to Arizona
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Cheapest flights from St. Louis to ArizonaExplore the most affordable flight options available from St. Louis to Arizona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 5, 2026.
Explore the most affordable flight options available from St. Louis to Arizona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 5, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/30. 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.
Sat 10/177:42 pm -
1 stop14h 28m
Thu 10/228:51 pm -
1 stop20h 24m
Deal found 9/30![Frontier logo]()
$302
This Cheapflightsfares deal was found by Cheapflights users on 9/30. 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.
Fri 12/257:49 pm -
1 stop13h 48m
Thu 12/315:13 pm -
1 stop24h 41m
Deal found 9/30![Frontier logo]()
$303
This Mytrip deal was found by Cheapflights users on 9/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:28 pm -
1 stop5h 59m
Thu 11/129:59 pm -
2 stops18h 41m
Deal found 9/30![Frontier logo]()
$305
This Mytrip deal was found by Cheapflights users on 10/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:59 pm -
2 stops18h 56m
Sat 11/76:53 am -
2 stops11h 21m
Deal found 10/1![Frontier logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 10/216:35 pm -
2 stops18h 59m
Thu 10/228:51 pm -
1 stop20h 24m
Deal found 10/1![Frontier logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 10/2. 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 11/306:35 pm -
2 stops15h 54m
Thu 12/310:03 pm -
1 stop11h 54m
Deal found 10/2![Frontier logo]()
$310
This Cheapflightsfares deal was found by Cheapflights users on 9/30. 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.
Sat 12/196:05 pm -
1 stop29h 04m
Wed 12/231:25 pm -
1 stop24h 32m
Deal found 9/30![Frontier logo]()
$311
This Cheapflightsfares deal was found by Cheapflights users on 10/2. 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.
Wed 11/44:18 pm -
1 stop9h 24m
Sat 11/710:09 am -
1 stop8h 05m
Deal found 10/2![Frontier logo]()
$312
This Cheapflightsfares deal was found by Cheapflights users on 10/4. 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 11/121:28 pm -
1 stop10h 41m
Mon 11/165:01 am -
1 stop5h 18m
Deal found 10/4![Frontier logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 10/4. 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 12/212:02 pm -
2 stops10h 36m
Sun 12/69:50 pm -
1 stop12h 07m
Deal found 10/4![Frontier logo]()
$315
This Cheapflightsfares deal was found by Cheapflights users on 10/4. 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.
Sat 11/213:04 pm -
1 stop10h 38m
Fri 11/277:25 am -
1 stop26h 38m
Deal found 10/4![Frontier logo]()
$316
This Cheapflightsfares deal was found by Cheapflights users on 10/1. 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.
Wed 10/214:19 pm -
1 stop17h 51m
Thu 11/59:59 pm -
1 stop20h 15m
Deal found 10/1![Frontier logo]()
$317
Best flights from St. Louis to ArizonaDiscover carefully curated flight deals from St. Louis to Arizona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 5, 2026.
Discover carefully curated flight deals from St. Louis to Arizona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 5, 2026.
This Southwest deal was found by Cheapflights users on 9/30. 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 11/78:40 am -
1 stop4h 45m
Wed 11/115:45 am -
Nonstop2h 50m
Deal found 9/30![Southwest logo]()
$363
This Delta deal was found by Cheapflights users on 10/2. 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 12/42:15 pm -
1 stop9h 24m
Sun 12/63:03 pm -
1 stop8h 02m
Deal found 10/2![Delta logo]()
$416
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 10/205:10 am -
2 stops9h 44m
Sat 10/248:37 am -
2 stops10h 44m
Deal found 10/4![United Airlines logo]()
$448
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 am -
2 stops13h 16m
Wed 11/117:19 pm -
1 stop27h 40m
Deal found 10/1![Alaska Airlines logo]()
$493
This American Airlines deal was found by Cheapflights users on 10/2. 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.
Tue 2/27:01 am -
1 stop6h 51m
Sat 2/67:29 am -
1 stop5h 09m
Deal found 10/2![American Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 10/1. 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.
Fri 10/232:05 pm -
Nonstop3h 25m
Wed 10/2810:25 am -
1 stop5h 20m
Deal found 10/1![Southwest logo]()
$410
This Delta deal was found by Cheapflights users on 10/3. 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.
Sun 12/203:48 pm -
1 stop8h 18m
Sat 12/266:05 am -
1 stop7h 39m
Deal found 10/3![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Tue 11/107:30 am -
2 stops11h 49m
Wed 11/112:30 pm -
1 stop5h 29m
Deal found 10/1![United Airlines logo]()
$470
This Southwest deal was found by Cheapflights users on 9/30. 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.
Fri 1/228:35 am -
1 stop5h 30m
Mon 1/2510:45 am -
1 stop4h 50m
Deal found 9/30![Southwest logo]()
$435
This American Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 1/52:45 pm -
1 stop6h 46m
Sat 1/91:22 pm -
1 stop5h 39m
Deal found 10/4![American Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 9/30. 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 11/148:40 am -
1 stop4h 45m
Sun 11/155:45 am -
Nonstop2h 45m
Deal found 9/30![Southwest logo]()
$437
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Tue 11/38:30 am -
1 stop6h 44m
Thu 11/51:00 pm -
1 stop6h 59m
Deal found 9/30![United Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 10/4. 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 11/238:50 am -
1 stop6h 05m
Wed 12/28:35 am -
Nonstop2h 55m
Deal found 10/4![Southwest logo]()
$450
This American Airlines deal was found by Cheapflights users on 10/2. 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.
Sat 10/312:31 pm -
1 stop7h 45m
Tue 11/37:15 am -
1 stop5h 49m
Deal found 10/2![American Airlines logo]()
$570
This Southwest deal was found by Cheapflights users on 10/1. 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.
Fri 10/302:25 pm -
2 stops7h 00m
Mon 11/23:45 pm -
2 stops8h 05m
Deal found 10/1![Southwest logo]()
$455
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Thu 11/125:00 am -
2 stops11h 50m
Sun 11/156:30 am -
1 stop5h 08m
Deal found 9/30![United Airlines logo]()
$552
This American Airlines deal was found by Cheapflights users on 10/3. 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 10/288:03 am -
1 stop5h 25m
Wed 11/47:00 am -
1 stop5h 43m
Deal found 10/3![American Airlines logo]()
$570
This Southwest deal was found by Cheapflights users on 10/4. 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 12/78:20 pm -
Nonstop3h 20m
Fri 12/118:25 pm -
Nonstop2h 50m
Deal found 10/4![Southwest logo]()
$458
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Thu 11/125:00 am -
2 stops11h 50m
Mon 11/165:42 pm -
1 stop22h 15m
Deal found 9/30![United Airlines logo]()
$560
This American Airlines deal was found by Cheapflights users on 10/4. 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.
Fri 11/135:00 am -
1 stop8h 52m
Thu 11/197:37 am -
1 stop4h 55m
Deal found 10/4![American Airlines logo]()
$580
This United Airlines deal was found by Cheapflights users on 10/2. 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.
Fri 12/46:30 am -
2 stops8h 05m
Sun 12/66:30 am -
1 stop5h 23m
Deal found 10/2![United Airlines logo]()
$572
This Southwest deal was found by Cheapflights users on 10/4. 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 10/222:05 pm -
Nonstop3h 25m
Mon 10/265:10 am -
Nonstop2h 50m
Deal found 10/4![Southwest logo]()
$481
This American Airlines deal was found by Cheapflights users on 10/2. 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 10/148:03 am -
1 stop5h 25m
Sat 10/176:55 am -
1 stop4h 42m
Deal found 10/2![American Airlines logo]()
$606
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Thu 11/195:00 am -
2 stops9h 24m
Sun 11/226:30 am -
1 stop5h 08m
Deal found 9/30![United Airlines logo]()
$572
This Southwest deal was found by Cheapflights users on 10/2. 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.
Fri 2/125:50 pm -
Nonstop3h 25m
Sun 2/141:40 pm -
1 stop5h 05m
Deal found 10/2![Southwest logo]()
$515
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Sun 12/205:20 am -
2 stops9h 20m
Sat 12/262:46 pm -
1 stop5h 22m
Deal found 10/4![United Airlines logo]()
$572
This American Airlines deal was found by Cheapflights users on 10/1. 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.
Fri 10/165:40 am -
1 stop8h 25m
Tue 10/206:15 am -
1 stop5h 22m
Deal found 10/1![American Airlines logo]()
$642
This Southwest deal was found by Cheapflights users on 10/3. 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.
Fri 2/125:35 pm -
1 stop5h 25m
Mon 2/155:30 am -
1 stop5h 45m
Deal found 10/3![Southwest logo]()
$525
This American Airlines deal was found by Cheapflights users on 10/1. 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.
Mon 10/266:32 am -
1 stop7h 33m
Sun 11/112:41 pm -
2 stops10h 14m
Deal found 10/1![American Airlines logo]()
$676
This Southwest deal was found by Cheapflights users on 10/1. 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 11/255:05 pm -
1 stop7h 10m
Sun 11/299:45 pm -
1 stop12h 20m
Deal found 10/1![Southwest logo]()
$563
Last-minute flights from St. Louis to ArizonaDiscover last-minute flight deals from St. Louis to Arizona. Data last updated October 5, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Arizona. Data last updated October 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/107:42 pm -
1 stop6h 06m
Tue 10/208:21 am -
2 stops29h 03m
Deal found 9/30![Frontier logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 10/216:35 pm -
2 stops18h 59m
Thu 10/228:51 pm -
1 stop20h 24m
Deal found 10/1![Frontier logo]()
$307
This Cheapflightsfares deal was found by Cheapflights users on 10/1. 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.
Wed 10/214:19 pm -
1 stop17h 51m
Thu 11/59:59 pm -
1 stop20h 15m
Deal found 10/1![Frontier logo]()
$317
This Frontier deal was found by Cheapflights users on 10/4. 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.
Mon 10/261:30 pm -
1 stop7h 03m
Mon 11/210:09 am -
1 stop8h 05m
Deal found 10/4![Frontier logo]()
$318
This Mytrip deal was found by Cheapflights users on 10/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:26 pm -
2 stops24h 51m
Thu 11/510:09 am -
2 stops25h 24m
Deal found 10/1![Frontier logo]()
$321
This Mytrip deal was found by Cheapflights users on 10/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:59 pm -
2 stops18h 56m
Sat 11/76:53 am -
2 stops11h 21m
Deal found 10/1![Frontier logo]()
$306
This Mytrip deal was found by Cheapflights users on 10/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:59 pm -
1 stop5h 43m
Mon 11/28:30 am -
2 stops9h 44m
Deal found 10/2![Frontier logo]()
$319
This Cheapflightsfares deal was found by Cheapflights users on 10/2. 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.
Wed 11/44:18 pm -
1 stop9h 24m
Sat 11/710:09 am -
1 stop8h 05m
Deal found 10/2![Frontier logo]()
$312
This Mytrip deal was found by Cheapflights users on 9/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:28 pm -
1 stop5h 59m
Thu 11/129:59 pm -
2 stops18h 41m
Deal found 9/30![Frontier logo]()
$305
This Cheapflightsfares deal was found by Cheapflights users on 10/4. 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 11/121:28 pm -
1 stop10h 41m
Mon 11/165:01 am -
1 stop5h 18m
Deal found 10/4![Frontier logo]()
$314
This Cheapflightsfares deal was found by Cheapflights users on 10/4. 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.
Sat 11/213:04 pm -
1 stop10h 38m
Fri 11/277:25 am -
1 stop26h 38m
Deal found 10/4![Frontier logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 10/2. 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 11/306:35 pm -
2 stops15h 54m
Thu 12/310:03 pm -
1 stop11h 54m
Deal found 10/2![Frontier logo]()
$310
One-way flights from St. Louis to ArizonaSearch for one-way flight options from St. Louis to Arizona. Find affordable one-way fares based on user searches. Data last updated October 5, 2026.
Search for one-way flight options from St. Louis to Arizona. Find affordable one-way fares based on user searches. Data last updated October 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 12/97:54 pm -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$34
This Frontier deal was found by Cheapflights users on 9/30. 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.
Wed 12/27:58 pm -
1 stop5h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$38
This WAYA deal was found by Cheapflights users on 9/30. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:59 pm -
1 stop5h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$55
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 11/26:44 pm -
2 stops30h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$70
This Super.com deal was found by Cheapflights users on 10/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:42 pm -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 10/284:18 pm -
1 stop9h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 9/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:59 pm -
1 stop14h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 10/4. 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 1/67:02 pm -
1 stop6h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 10/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:00 pm -
1 stop5h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$103
This American Airlines deal was found by Cheapflights users on 9/29. 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.
Mon 10/268:03 am -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![American Airlines logo]()
$178
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 10/279:40 am -
2 stops9h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![United Airlines logo]()
$183
This Delta deal was found by Cheapflights users on 10/1. 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 11/65:38 pm -
1 stop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Delta logo]()
$188
Find flight deals from St. Louis to Arizona
Keep the following information in mind while searching for St. Louis to Arizona flight deals. Data was last updated October 5, 2026.
Round-trip from | $302 (Cheapflightsfares) |
|---|---|
One-way from | $34 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $397 |
Good round-trip deal | $416 or less |
Good one-way deal | $202 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Arizona 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 October 5, 2026.
Use the filters below to find and compare flights from St. Louis to Arizona that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Tue 10/27
6:30 am-9:45 am
1 stop5h 15m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$178
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Thu 11/19
5:00 am-10:03 am
1 stop6h 03m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$178
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Tue 10/27
9:40 am-5:19 pm
2 stops9h 39m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$183
St. LouisPhoenix
STL Lambert-St Louis - PHX Phoenix Sky Harbor Intl
STLPHX
Lambert-St Louis
Tue 11/3
8:25 am-12:25 pm
1 stop5h 00m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$184
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Fri 11/6
5:38 pm-10:55 pm
1 stop6h 17m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$188
St. LouisPhoenix
STL Lambert-St Louis - PHX Phoenix Sky Harbor Intl
STLPHX
Lambert-St Louis
Thu 10/29
7:45 am-12:17 pm
1 stop6h 32m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$189
St. LouisPhoenix
STL Lambert-St Louis - PHX Phoenix Sky Harbor Intl
STLPHX
Lambert-St Louis
Wed 11/25
9:45 pm-12:15 am
Nonstop3h 30m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$199
Quickest round-trip
St. LouisPhoenix
STL Lambert-St Louis - PHX Phoenix Sky Harbor Intl
STLPHX
Lambert-St Louis
Fri 12/4
8:20 pm-10:40 pm
Nonstop3h 20m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$205
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Sat 11/7
5:00 am-12:12 pm
1 stop8h 12m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$209
St. LouisPhoenix
STL Lambert-St Louis - PHX Phoenix Sky Harbor Intl
STLPHX
Lambert-St Louis
Tue 12/1
5:20 pm-12:28 am
1 stop8h 08m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$209
Showing 1-10 of 59 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Arizona
Have a flexible travel schedule? Discover the best time to fly to Arizona from St. Louis with our price prediction graph.
STL-PHX
STL-TUS
STL-FLG
STL-YUM
STL-PRC
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 St. Louis to Arizona
STL-USAZ
STL-PHX
STL-TUS
STL-FLG
STL-YUM
What is the cheapest month to book a flight from St. Louis to Arizona?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Arizona (average of $340). Flying from St. Louis to Arizona in August is currently the most expensive (average of $451). 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 STL to AZ?
Find hourly flight availability from St. Louis to Arizona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 5, 2026.
A simple way to save on the total cost of your ticket is to fly from St. Louis to Arizona in the evening. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the morning.
How much does it cost to fly round-trip from St. Louis to Arizona?
Airfare is below average for this route at the moment.
St. Louis to Arizona flights typically cost between $329 and $460 in October.The cheapest round-trip price found within the last 5 days was $302 on Frontier (Oct 17-Oct 22).
How far ahead should I book a flight from St. Louis to Arizona?
The price you pay for your flight from St. Louis to Arizona may vary depending on when you book. For the best chance of a lower fare, look to book 23 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from St. Louis to Arizona?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Arizona. Price data was last updated on October 3, 2026.
Travelers seeking maximum savings on their St. Louis to Arizona flight should consider departing on Friday evenings 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.
Reviews of airlines servicing Arizona
Get insights into the airlines that provide service to Arizona. 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 Arizona. Reviews last updated October 5, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andJetBlue from St. Louis to Arizona by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Arizona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Arizona
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Complete your trip
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Find flights from St. Louis to Arizona, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Arizona flights
Browse other St. Louis and Arizona flight options. Last updated on October 5, 2026.
Popular flight searches
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St. Louis to Arizona flights
Consider these flights traveling from St. Louis to Arizona.
Top 5 airlines flying from St. Louis to Arizona
Discover the top 5 airlines that operate flights from St. Louis to Arizona. 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 7,457,451 searches. Data last updated October 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$231 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$360 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$263 | Average$478 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$267 | Average$435 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$292 | Average$380 | FlexibilityNo cancel fee | On-time62% |