$75+ Cheap flights from St. Louis (STL) to Arizona
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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Jun 23 — Jun 301
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
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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 May 24, 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 May 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 8/198:08 pm
STL
- LAS
1 stop5h 22m
Frontier
Wed 8/266:30 am
LAS
- STL
1 stop10h 53m
Frontier
Deal found 5/19![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 8/198:08 pm
STL
- LAS
1 stop5h 22m
Frontier
Tue 8/2512:40 pm
LAS
- STL
Nonstop3h 28m
Frontier
Deal found 5/19![Frontier logo]()
$207
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:08 pm
STL
- LAS
1 stop13h 02m
Frontier
Sat 8/222:10 pm
LAS
- STL
Nonstop3h 26m
Frontier
Deal found 5/20![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 7/297:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Tue 8/46:15 am
LAS
- STL
1 stop11h 08m
Frontier
Deal found 5/19![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 7/297:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Thu 8/68:45 am
LAS
- STL
Nonstop3h 22m
Frontier
Deal found 5/19![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 8/188:08 pm
STL
- LAS
1 stop5h 22m
Frontier
Tue 8/257:00 am
LAS
- STL
2 stops10h 23m
Frontier
Deal found 5/19![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 8/172:52 pm
STL
- LAS
Nonstop3h 36m
Frontier
Wed 8/2612:40 pm
LAS
- STL
Nonstop3h 28m
Frontier
Deal found 5/19![Frontier logo]()
$216
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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 9/1012:46 pm
STL
- LAS
Nonstop3h 43m
Frontier
Mon 9/146:30 am
LAS
- STL
1 stop10h 45m
Frontier
Deal found 5/19![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 7/274:52 pm
STL
- LAS
1 stop29h 44m
Frontier
Thu 8/68:45 am
LAS
- STL
Nonstop3h 22m
Frontier
Deal found 5/19![Frontier logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 7/272:52 pm
STL
- LAS
Nonstop3h 36m
Frontier
Tue 8/46:15 am
LAS
- STL
1 stop11h 08m
Frontier
Deal found 5/19![Frontier logo]()
$222
This Frontier deal was found by Cheapflights users on 5/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:34 pm
STL
- LAS
1 stop10h 10m
Frontier
Sat 8/222:10 pm
LAS
- STL
Nonstop3h 26m
Frontier
Deal found 5/20![Frontier logo]()
$224
This Expedia deal was found by Cheapflights users on 5/19. 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.
Tue 6/307:03 pm
STL
- PHX
1 stop6h 01m
Frontier
Wed 7/110:32 pm
PHX
- STL
1 stop10h 46m
Frontier
Deal found 5/19![Frontier logo]()
$230
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 May 24, 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 May 24, 2026.
This Southwest deal was found by Cheapflights users on 5/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:35 am
STL
- PHX
1 stop5h 45m
Southwest
Tue 6/93:30 pm
PHX
- STL
1 stop6h 10m
Southwest
Deal found 5/22![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 5/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:10 am
STL
- PHX
1 stop5h 50m
United Airlines
Thu 7/304:25 pm
PHX
- STL
1 stop5h 32m
United Airlines
Deal found 5/23![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 5/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/155:29 am
STL
- TUS
1 stop7h 36m
American Airlines
Wed 6/177:42 am
TUS
- STL
1 stop7h 51m
American Airlines
Deal found 5/21![American Airlines logo]()
$415
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:00 am
STL
- LAS
2 stops12h 54m
Alaska Airlines
Fri 7/247:59 am
LAS
- STL
2 stops9h 54m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$552
This Delta deal was found by Cheapflights users on 5/19. 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 8/2111:13 am
STL
- LAS
1 stop6h 45m
Delta
Sun 8/237:16 pm
LAS
- STL
2 stops11h 21m
Delta
Deal found 5/19![Delta logo]()
$575
This Southwest deal was found by Cheapflights users on 5/23. 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.
Tue 7/286:10 am
STL
- PHX
Nonstop3h 10m
Southwest
Thu 7/304:40 pm
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 5/23![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 5/23. 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.
Wed 7/12:10 pm
STL
- PHX
1 stop5h 50m
Southwest
Sun 7/58:00 pm
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 5/23![Southwest logo]()
$324
This Southwest deal was found by Cheapflights users on 5/21. 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 5/286:00 pm
STL
- PHX
Nonstop3h 25m
Southwest
Wed 6/310:20 am
PHX
- STL
1 stop5h 45m
Southwest
Deal found 5/21![Southwest logo]()
$324
This United Airlines deal was found by Cheapflights users on 5/22. 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.
Wed 6/175:10 am
STL
- PHX
1 stop5h 50m
United Airlines
Tue 6/234:21 pm
PHX
- STL
1 stop5h 36m
United Airlines
Deal found 5/22![United Airlines logo]()
$424
This American Airlines deal was found by Cheapflights users on 5/19. 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 6/195:03 pm
STL
- TUS
1 stop7h 58m
American Airlines
Sun 6/214:00 pm
TUS
- STL
1 stop5h 59m
American Airlines
Deal found 5/19![American Airlines logo]()
$447
This Southwest deal was found by Cheapflights users on 5/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:05 am
STL
- PHX
Nonstop3h 25m
Southwest
Sun 5/318:25 pm
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 5/22![Southwest logo]()
$351
This United Airlines deal was found by Cheapflights users on 5/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:10 am
STL
- PHX
2 stops11h 32m
United Airlines
Wed 7/296:10 am
PHX
- STL
1 stop6h 06m
United Airlines
Deal found 5/23![United Airlines logo]()
$429
This American Airlines deal was found by Cheapflights users on 5/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:18 pm
STL
- TUS
2 stops7h 18m
American Airlines
Fri 6/261:22 pm
TUS
- STL
1 stop6h 15m
American Airlines
Deal found 5/20![American Airlines logo]()
$452
This Southwest deal was found by Cheapflights users on 5/18. 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 7/294:25 pm
STL
- LAS
Nonstop3h 25m
Southwest
Wed 8/510:50 pm
LAS
- STL
1 stop6h 55m
Southwest
Deal found 5/18![Southwest logo]()
$363
This United Airlines deal was found by Cheapflights users on 5/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:36 pm
STL
- TUS
1 stop5h 27m
United Airlines
Wed 8/125:30 am
TUS
- STL
1 stop5h 10m
United Airlines
Deal found 5/23![United Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 5/18. 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.
Fri 7/175:37 pm
STL
- LAS
1 stop18h 18m
Alaska Airlines
Mon 7/207:59 am
LAS
- STL
2 stops9h 54m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$569
This Delta deal was found by Cheapflights users on 5/19. 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.
Sat 7/116:21 am
STL
- LAS
1 stop8h 29m
Delta
Tue 7/1411:09 am
LAS
- STL
2 stops10h 13m
Delta
Deal found 5/19![Delta logo]()
$585
This Southwest deal was found by Cheapflights users on 5/19. 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 7/75:35 am
STL
- TUS
1 stop5h 35m
Southwest
Wed 7/155:15 am
TUS
- STL
2 stops7h 55m
Southwest
Deal found 5/19![Southwest logo]()
$380
This American Airlines deal was found by Cheapflights users on 5/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/168:36 am
STL
- FLG
1 stop5h 19m
American Airlines
Tue 6/2310:25 am
FLG
- STL
1 stop5h 08m
American Airlines
Deal found 5/23![American Airlines logo]()
$508
This United Airlines deal was found by Cheapflights users on 5/22. 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.
Thu 7/95:10 am
STL
- LAS
2 stops11h 24m
United Airlines
Mon 7/2011:59 pm
LAS
- STL
1 stop6h 40m
United Airlines
Deal found 5/22![United Airlines logo]()
$490
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/168:00 am
STL
- LAS
2 stops15h 00m
Alaska Airlines
Tue 6/237:59 am
LAS
- STL
2 stops9h 37m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$597
This Delta deal was found by Cheapflights users on 5/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/202:30 pm
STL
- LAS
2 stops10h 29m
Delta
Fri 7/245:00 pm
LAS
- STL
1 stop5h 41m
Delta
Deal found 5/20![Delta logo]()
$605
This Southwest deal was found by Cheapflights users on 5/19. 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 6/179:15 pm
STL
- PHX
Nonstop3h 10m
Southwest
Tue 6/2310:50 am
PHX
- STL
1 stop4h 55m
Southwest
Deal found 5/19![Southwest logo]()
$391
This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:00 am
STL
- YUM
1 stop5h 23m
American Airlines
Mon 8/176:00 am
YUM
- STL
1 stop6h 43m
American Airlines
Deal found 5/22![American Airlines logo]()
$544
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:37 pm
STL
- LAS
1 stop18h 18m
Alaska Airlines
Sun 8/96:50 am
LAS
- STL
2 stops9h 20m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$606
This Southwest deal was found by Cheapflights users on 5/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/221:50 pm
STL
- LAS
2 stops6h 35m
Southwest
Mon 7/276:35 pm
LAS
- STL
1 stop5h 15m
Southwest
Deal found 5/20![Southwest logo]()
$396
This United Airlines deal was found by Cheapflights users on 5/22. 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.
Sun 6/141:13 pm
STL
- LAS
1 stop6h 44m
United Airlines
Sat 6/2012:36 am
LAS
- STL
1 stop6h 03m
United Airlines
Deal found 5/22![United Airlines logo]()
$545
This American Airlines deal was found by Cheapflights users on 5/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:30 am
STL
- FLG
1 stop5h 29m
American Airlines
Sat 10/101:18 pm
FLG
- STL
2 stops8h 23m
American Airlines
Deal found 5/21![American Airlines logo]()
$556
This Southwest deal was found by Cheapflights users on 5/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/278:45 pm
STL
- PHX
Nonstop3h 10m
Southwest
Sun 7/55:00 am
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 5/20![Southwest logo]()
$405
This American Airlines deal was found by Cheapflights users on 5/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/112:46 pm
STL
- YUM
1 stop7h 22m
American Airlines
Sat 7/185:00 pm
YUM
- STL
1 stop4h 59m
American Airlines
Deal found 5/20![American Airlines logo]()
$557
Last-minute flights from St. Louis to ArizonaDiscover last-minute flight deals from St. Louis to Arizona. Data last updated May 24, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Arizona. Data last updated May 24, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 5/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:08 pm
STL
- PHX
1 stop5h 21m
Frontier
Tue 5/2611:30 pm
PHX
- STL
1 stop7h 25m
Frontier
Deal found 5/21![Frontier logo]()
$247
This Super.com deal was found by Cheapflights users on 5/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:51 pm
STL
- PHX
1 stop6h 33m
Frontier
Sun 5/316:00 am
PHX
- STL
1 stop6h 31m
Frontier
Deal found 5/22![Frontier logo]()
$249
This Super.com deal was found by Cheapflights users on 5/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:08 pm
STL
- PHX
1 stop5h 21m
Frontier
Sun 5/3112:20 am
PHX
- STL
1 stop8h 09m
Frontier
Deal found 5/20![Frontier logo]()
$251
This Frontier deal was found by Cheapflights users on 5/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:08 pm
STL
- PHX
1 stop5h 21m
Frontier
Sun 6/76:00 am
PHX
- STL
1 stop6h 31m
Frontier
Deal found 5/23![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 5/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/105:06 pm
STL
- PHX
1 stop7h 14m
Frontier
Mon 6/156:40 am
PHX
- STL
1 stop10h 13m
Frontier
Deal found 5/23![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/127:03 pm
STL
- LAS
1 stop6h 51m
Frontier
Tue 6/166:34 pm
LAS
- STL
1 stop22h 49m
Frontier
Deal found 5/19![Frontier logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/152:56 pm
STL
- LAS
Nonstop3h 35m
Frontier
Wed 6/176:15 am
LAS
- STL
1 stop11h 08m
Frontier
Deal found 5/19![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Wed 6/177:46 pm
STL
- LAS
Nonstop3h 34m
Frontier
Tue 6/2312:59 am
LAS
- STL
1 stop16h 24m
Frontier
Deal found 5/20![Frontier logo]()
$243
This Frontier deal was found by Cheapflights users on 5/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/177:03 pm
STL
- PHX
1 stop6h 01m
Frontier
Sat 6/206:24 am
PHX
- STL
1 stop10h 10m
Frontier
Deal found 5/23![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/177:03 pm
STL
- PHX
1 stop6h 01m
Frontier
Wed 6/2411:21 am
PHX
- STL
1 stop6h 02m
Frontier
Deal found 5/19![Frontier logo]()
$253
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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.
Tue 6/238:08 pm
STL
- LAS
1 stop23h 21m
Frontier
Sat 6/276:30 am
LAS
- STL
1 stop10h 23m
Frontier
Deal found 5/19![Frontier logo]()
$242
This Expedia deal was found by Cheapflights users on 5/19. 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.
Tue 6/307:03 pm
STL
- PHX
1 stop6h 01m
Frontier
Wed 7/110:32 pm
PHX
- STL
1 stop10h 46m
Frontier
Deal found 5/19![Frontier logo]()
$230
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 May 24, 2026.
Search for one-way flight options from St. Louis to Arizona. Find affordable one-way fares based on user searches. Data last updated May 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 5/21![Frontier logo]()
$75
This Frontier deal was found by Cheapflights users on 5/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:52 pm
STL
- LAS
Nonstop3h 36m
Frontier
Deal found 5/20![Frontier logo]()
$76
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 5/20![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 8/47:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 5/20![Frontier logo]()
$89
This Frontier deal was found by Cheapflights users on 5/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:52 pm
STL
- LAS
Nonstop3h 36m
Frontier
Deal found 5/20![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Fri 8/144:52 pm
STL
- LAS
1 stop21h 37m
Frontier
Deal found 5/20![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 7/148:08 pm
STL
- PHX
1 stop16h 03m
Frontier
Deal found 5/20![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 8/174:52 pm
STL
- LAS
2 stops24h 08m
Frontier
Deal found 5/18![Frontier logo]()
$105
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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.
Tue 7/148:08 pm
STL
- LAS
1 stop5h 21m
Frontier
Deal found 5/19![Frontier logo]()
$113
This Super.com deal was found by Cheapflights users on 5/19. 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.
Wed 7/17:03 pm
STL
- PHX
1 stop6h 01m
Frontier
Deal found 5/19![Frontier logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 7/297:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 5/19![Frontier logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Sun 8/166:33 pm
STL
- PHX
2 stops42h 51m
Frontier
Deal found 5/20![Frontier logo]()
$120
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 May 24, 2026.
Round-trip from | $205 (Kiwi.com) |
|---|---|
One-way from | $75 (Cheapflightsfares) |
Popular in | April |
Cheapest in | November |
Average price | $376 |
Good round-trip deal | $405 or less |
Good one-way deal | $248 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 2,558,603 searches. Data last updated May 24, 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. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Tue 6/2
5:35 am-9:20 am
1 stop5h 45m
Phoenix Sky Harbor Intl
Tue 6/9
3:30 pm-11:40 pm
1 stop6h 10m
$297
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Tue 7/28
6:10 am-7:20 am
Nonstop3h 10m
Phoenix Sky Harbor Intl
Thu 7/30
4:40 pm-9:35 pm
Nonstop2h 55m
$314
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Wed 7/1
2:10 pm-6:00 pm
1 stop5h 50m
Phoenix Sky Harbor Intl
Sun 7/5
8:00 pm-12:55 am
Nonstop2h 55m
$324
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Thu 5/28
6:00 pm-7:25 pm
Nonstop3h 25m
Phoenix Sky Harbor Intl
Wed 6/3
10:20 am-6:05 pm
1 stop5h 45m
$324
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Tue 7/28
5:10 am-9:00 am
1 stop5h 50m
Phoenix Sky Harbor Intl
Thu 7/30
4:25 pm-11:57 pm
1 stop5h 32m
$334
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Fri 5/29
6:05 am-7:30 am
Nonstop3h 25m
Phoenix Sky Harbor Intl
Sun 5/31
8:25 pm-1:15 am
Nonstop2h 50m
$351
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Wed 7/29
4:25 pm-5:50 pm
Nonstop3h 25m
Las Vegas Harry Reid Intl
Wed 8/5
10:50 pm-7:45 am
1 stop6h 55m
$363
St. LouisTucson
STL - TUS
STLTUS
Lambert-St Louis
Tue 7/7
5:35 am-9:10 am
1 stop5h 35m
Tucson
Wed 7/15
5:15 am-3:10 pm
2 stops7h 55m
$380
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Wed 6/17
9:15 pm-10:25 pm
Nonstop3h 10m
Phoenix Sky Harbor Intl
Tue 6/23
10:50 am-5:45 pm
1 stop4h 55m
$391
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Wed 7/22
1:50 pm-6:25 pm
2 stops6h 35m
Las Vegas Harry Reid Intl
Mon 7/27
6:35 pm-1:50 am
1 stop5h 15m
$396
Showing 1-10 of 60 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-LAS
STL-PHX
STL-TUS
STL-FLG
STL-YUM
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-LAS
STL-PHX
STL-TUS
STL-FLG
What is the cheapest month to book a flight from St. Louis to Arizona?
Currently, December is the cheapest month in which you can book a flight from St. Louis to Arizona (average of $40). Flying from St. Louis to Arizona in June is currently the most expensive (average of $200). 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 May 24, 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 29% on your trip compared to booking a flight in the morning.
Weekly flight availability from St. Louis to Arizona
Explore weekly flight availability from St. Louis to Arizona. 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 May 24, 2026.
The most flights from STL to USAZ are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from St. Louis to Arizona?
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 May 23, 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 at noon 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 May 24, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines 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.
Comfort
8.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Arizona by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Arizona by cabin class
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 May 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Arizona flights
Consider these flights traveling from St. Louis to Arizona.
Top 6 airlines flying from St. Louis to Arizona
Discover the top 6 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 2,558,603 searches. Data last updated May 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$94 | Average$212 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$121 | Average$199 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$148 | Average$436 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$213 | Average$435 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$218 | Average$415 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$236 | Average$336 | FlexibilityNo cancel fee | On-timeN/A |