$72+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Jul 4 — Jul 111
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Arizona with Cheapflights
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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 June 4, 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 June 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:10 pm
STL
- LAS
Nonstop3h 33m
Frontier
Tue 7/2112:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/3![Frontier logo]()
$210
This Super.com deal was found by Cheapflights users on 6/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:10 pm
STL
- LAS
Nonstop3h 33m
Frontier
Wed 7/2212:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/3![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:33 pm
STL
- LAS
1 stop10h 21m
Frontier
Thu 8/202:10 pm
LAS
- STL
Nonstop3h 26m
Frontier
Deal found 6/3![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/23:33 pm
STL
- LAS
1 stop10h 21m
Frontier
Sat 9/56:30 am
LAS
- STL
1 stop10h 53m
Frontier
Deal found 6/3![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Tue 7/213:41 pm
STL
- LAS
1 stop10h 06m
Frontier
Mon 8/312:59 am
LAS
- STL
1 stop16h 24m
Frontier
Deal found 6/4![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:33 pm
STL
- LAS
1 stop10h 21m
Frontier
Sat 9/52:10 pm
LAS
- STL
Nonstop3h 26m
Frontier
Deal found 6/3![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:03 pm
STL
- LAS
1 stop7h 01m
Frontier
Wed 7/811:50 pm
LAS
- STL
1 stop15h 47m
Frontier
Deal found 6/3![Frontier logo]()
$218
This Super.com deal was found by Cheapflights users on 6/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/282:56 pm
STL
- LAS
Nonstop3h 35m
Frontier
Wed 7/11:23 pm
LAS
- STL
Nonstop3h 28m
Frontier
Deal found 6/3![Frontier logo]()
$220
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Fri 7/1012:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/3![Frontier logo]()
$221
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:21 pm
STL
- LAS
Nonstop3h 38m
Frontier
Mon 8/312:10 pm
LAS
- STL
Nonstop3h 26m
Frontier
Deal found 6/3![Frontier logo]()
$222
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:08 pm
STL
- LAS
1 stop13h 01m
Frontier
Mon 8/1712:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/3![Frontier logo]()
$223
This Frontier deal was found by Cheapflights users on 5/31. 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 8/13:41 pm
STL
- PHX
1 stop9h 18m
Frontier
Tue 8/411:19 am
PHX
- STL
1 stop6h 04m
Frontier
Deal found 5/31![Frontier logo]()
$238
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 June 4, 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 June 4, 2026.
This Southwest deal was found by Cheapflights users on 6/2. 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.
Wed 7/15:35 am
STL
- TUS
1 stop5h 35m
Southwest
Tue 7/75:15 am
TUS
- STL
2 stops7h 55m
Southwest
Deal found 6/2![Southwest logo]()
$372
This United Airlines deal was found by Cheapflights users on 6/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:13 pm
STL
- LAS
1 stop7h 20m
United Airlines
Tue 8/46:00 am
LAS
- STL
2 stops15h 36m
United Airlines
Deal found 6/3![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 6/2. 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 7/15:29 am
STL
- TUS
2 stops7h 36m
American Airlines
Tue 7/710:16 am
TUS
- STL
2 stops7h 37m
American Airlines
Deal found 6/2![American Airlines logo]()
$402
This Alaska Airlines deal was found by Cheapflights users on 6/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:37 pm
STL
- LAS
1 stop19h 42m
Alaska Airlines
Wed 8/198:02 am
LAS
- STL
2 stops12h 57m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 5/31. 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.
Thu 8/276:20 am
STL
- LAS
1 stop8h 18m
Delta
Sat 9/510:59 am
LAS
- STL
2 stops9h 04m
Delta
Deal found 5/31![Delta logo]()
$500
This Southwest deal was found by Cheapflights users on 5/31. 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 7/158:25 am
STL
- TUS
2 stops7h 45m
Southwest
Tue 7/215:15 am
TUS
- STL
1 stop6h 55m
Southwest
Deal found 5/31![Southwest logo]()
$372
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Fri 8/141:36 pm
STL
- LAS
2 stops8h 28m
United Airlines
Mon 8/177:10 am
LAS
- STL
1 stop6h 28m
United Airlines
Deal found 6/1![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 6/3. 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.
Wed 7/86:20 pm
STL
- PHX
Nonstop3h 10m
Southwest
Wed 7/225:00 am
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 6/3![Southwest logo]()
$375
This American Airlines deal was found by Cheapflights users on 6/2. 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 9/56:36 am
STL
- TUS
2 stops8h 31m
American Airlines
Thu 9/1011:45 am
TUS
- STL
1 stop6h 00m
American Airlines
Deal found 6/2![American Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 6/1. 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.
Sun 7/55:32 am
STL
- TUS
1 stop5h 06m
American Airlines
Tue 7/1410:16 am
TUS
- STL
2 stops7h 37m
American Airlines
Deal found 6/1![American Airlines logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:00 am
STL
- LAS
2 stops13h 25m
Alaska Airlines
Fri 11/205:45 pm
LAS
- STL
1 stop18h 41m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$471
This Southwest deal was found by Cheapflights users on 5/30. 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.
Wed 7/229:15 pm
STL
- PHX
Nonstop3h 15m
Southwest
Mon 7/271:35 pm
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 5/30![Southwest logo]()
$405
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Thu 8/66:00 am
STL
- PHX
2 stops11h 10m
United Airlines
Mon 8/104:25 pm
PHX
- STL
1 stop5h 32m
United Airlines
Deal found 6/4![United Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 6/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:00 am
STL
- PHX
2 stops9h 16m
United Airlines
Wed 9/911:54 pm
PHX
- STL
2 stops13h 44m
United Airlines
Deal found 6/3![United Airlines logo]()
$457
This Southwest deal was found by Cheapflights users on 6/2. 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.
Sat 9/58:30 am
STL
- TUS
2 stops7h 15m
Southwest
Thu 9/1011:30 am
TUS
- STL
2 stops6h 40m
Southwest
Deal found 6/2![Southwest logo]()
$423
This Alaska Airlines deal was found by Cheapflights users on 5/31. 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.
Thu 8/135:37 pm
STL
- LAS
1 stop18h 18m
Alaska Airlines
Mon 8/177:59 am
LAS
- STL
2 stops14h 00m
Alaska Airlines
Deal found 5/31![Alaska Airlines logo]()
$529
This American Airlines deal was found by Cheapflights users on 6/1. 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.
Sat 7/185:28 pm
STL
- YUM
1 stop6h 47m
American Airlines
Sat 8/15:00 pm
YUM
- STL
1 stop4h 58m
American Airlines
Deal found 6/1![American Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 6/2. 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.
Sat 7/186:45 pm
STL
- PHX
1 stop5h 35m
Southwest
Sun 7/267:10 am
PHX
- STL
1 stop5h 35m
Southwest
Deal found 6/2![Southwest logo]()
$425
This United Airlines deal was found by Cheapflights users on 5/31. 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 7/305:10 am
STL
- LAS
2 stops11h 24m
United Airlines
Tue 8/46:00 am
LAS
- STL
2 stops15h 36m
United Airlines
Deal found 5/31![United Airlines logo]()
$476
This Alaska Airlines deal was found by Cheapflights users on 5/31. 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.
Sat 7/115:37 pm
STL
- LAS
1 stop18h 18m
Alaska Airlines
Tue 7/147:22 am
LAS
- STL
2 stops14h 36m
Alaska Airlines
Deal found 5/31![Alaska Airlines logo]()
$537
This American Airlines deal was found by Cheapflights users on 5/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:18 pm
STL
- YUM
1 stop7h 01m
American Airlines
Tue 7/76:45 am
YUM
- STL
1 stop5h 08m
American Airlines
Deal found 5/30![American Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 6/1. 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.
Thu 8/66:00 am
STL
- PHX
Nonstop3h 15m
Southwest
Sun 8/96:05 pm
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 6/1![Southwest logo]()
$429
This Alaska Airlines deal was found by Cheapflights users on 6/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:44 am
STL
- LAS
2 stops10h 57m
Alaska Airlines
Wed 7/1511:30 am
LAS
- STL
1 stop10h 29m
Alaska Airlines
Deal found 6/2![Alaska Airlines logo]()
$542
This American Airlines deal was found by Cheapflights users on 6/3. 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 7/15:18 pm
STL
- YUM
1 stop7h 01m
American Airlines
Tue 7/76:45 am
YUM
- STL
1 stop5h 08m
American Airlines
Deal found 6/3![American Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 5/30. 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.
Thu 8/66:00 am
STL
- PHX
Nonstop3h 15m
Southwest
Mon 8/103:25 pm
PHX
- STL
1 stop4h 30m
Southwest
Deal found 5/30![Southwest logo]()
$433
This United Airlines deal was found by Cheapflights users on 6/1. 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 6/164:48 pm
STL
- TUS
1 stop5h 24m
United Airlines
Sat 6/209:04 am
TUS
- STL
1 stop7h 13m
United Airlines
Deal found 6/1![United Airlines logo]()
$527
This Alaska Airlines deal was found by Cheapflights users on 5/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:36 am
STL
- LAS
2 stops14h 32m
Alaska Airlines
Mon 8/177:59 am
LAS
- STL
2 stops10h 27m
Alaska Airlines
Deal found 5/30![Alaska Airlines logo]()
$548
This American Airlines deal was found by Cheapflights users on 5/31. 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 7/108:38 am
STL
- FLG
1 stop5h 19m
American Airlines
Sat 7/1812:37 pm
FLG
- STL
1 stop5h 16m
American Airlines
Deal found 5/31![American Airlines logo]()
$512
This Southwest deal was found by Cheapflights users on 6/1. 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 7/179:45 pm
STL
- PHX
Nonstop3h 15m
Southwest
Mon 7/208:55 pm
PHX
- STL
Nonstop3h 00m
Southwest
Deal found 6/1![Southwest logo]()
$435
This United Airlines deal was found by Cheapflights users on 5/30. 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 9/245:10 am
STL
- LAS
2 stops10h 49m
United Airlines
Sat 9/2612:59 am
LAS
- STL
2 stops11h 12m
United Airlines
Deal found 5/30![United Airlines logo]()
$548
Last-minute flights from St. Louis to ArizonaDiscover last-minute flight deals from St. Louis to Arizona. Data last updated June 4, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Arizona. Data last updated June 4, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:46 pm
STL
- LAS
Nonstop3h 34m
Frontier
Thu 6/259:15 am
LAS
- STL
1 stop12h 34m
Frontier
Deal found 6/3![Frontier logo]()
$225
This Super.com deal was found by Cheapflights users on 6/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/282:56 pm
STL
- LAS
Nonstop3h 35m
Frontier
Wed 7/11:23 pm
LAS
- STL
Nonstop3h 28m
Frontier
Deal found 6/3![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:03 pm
STL
- LAS
1 stop7h 01m
Frontier
Wed 7/811:50 pm
LAS
- STL
1 stop15h 47m
Frontier
Deal found 6/3![Frontier logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:03 pm
STL
- LAS
1 stop7h 01m
Frontier
Tue 7/2112:59 am
LAS
- STL
1 stop16h 24m
Frontier
Deal found 6/3![Frontier logo]()
$222
This Super.com deal was found by Cheapflights users on 6/1. 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 7/47:38 pm
STL
- PHX
1 stop5h 51m
Frontier
Sat 7/117:45 am
PHX
- STL
1 stop8h 30m
Frontier
Deal found 6/1![Frontier logo]()
$255
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Fri 7/1012:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/3![Frontier logo]()
$221
This Expedia deal was found by Cheapflights users on 6/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:10 pm
STL
- LAS
Nonstop3h 33m
Frontier
Tue 7/2112:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/4![Frontier logo]()
$212
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:10 pm
STL
- LAS
Nonstop3h 33m
Frontier
Tue 7/2112:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/3![Frontier logo]()
$210
This Frontier deal was found by Cheapflights users on 6/4. 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.
Fri 7/177:10 pm
STL
- LAS
Nonstop3h 33m
Frontier
Fri 7/2412:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/4![Frontier logo]()
$224
This Super.com deal was found by Cheapflights users on 6/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:10 pm
STL
- LAS
Nonstop3h 33m
Frontier
Wed 7/2212:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/3![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Tue 7/213:41 pm
STL
- LAS
1 stop10h 06m
Frontier
Mon 8/312:59 am
LAS
- STL
1 stop16h 24m
Frontier
Deal found 6/4![Frontier logo]()
$216
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:09 pm
STL
- LAS
1 stop30h 01m
Frontier
Tue 8/412:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/3![Frontier logo]()
$226
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 June 4, 2026.
Search for one-way flight options from St. Louis to Arizona. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
This Super.com deal was found by Cheapflights users on 6/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:46 pm
STL
- LAS
Nonstop3h 34m
Frontier
Deal found 6/4![Frontier logo]()
$72
This Super.com deal was found by Cheapflights users on 6/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:46 pm
STL
- LAS
Nonstop3h 34m
Frontier
Deal found 6/3![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:08 pm
STL
- PHX
1 stop21h 40m
Frontier
Deal found 6/3![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Tue 9/18:08 pm
STL
- PHX
1 stop21h 16m
Frontier
Deal found 6/4![Frontier logo]()
$87
This Frontier deal was found by Cheapflights users on 6/4. 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.
Sat 8/228:21 pm
STL
- LAS
Nonstop3h 38m
Frontier
Deal found 6/4![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.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 6/3![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:08 pm
STL
- LAS
1 stop17h 21m
Frontier
Deal found 6/3![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:03 pm
STL
- LAS
1 stop7h 01m
Frontier
Deal found 6/3![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/43:41 pm
STL
- LAS
2 stops25h 36m
Frontier
Deal found 6/3![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 5/31. 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.
Tue 8/256:58 pm
STL
- PHX
1 stop6h 27m
Frontier
Deal found 5/31![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:41 pm
STL
- LAS
2 stops25h 36m
Frontier
Deal found 6/3![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Sun 8/236:33 pm
STL
- LAS
1 stop28h 06m
Frontier
Deal found 6/4![Frontier logo]()
$116
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 June 4, 2026.
Round-trip from | $210 (Cheapflightsfares) |
|---|---|
One-way from | $72 (Super.com) |
Popular in | June |
Cheapest in | November |
Average price | $400 |
Good round-trip deal | $405 or less |
Good one-way deal | $269 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 June 4, 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 - TUS
STLTUS
Lambert-St Louis
Wed 7/1
5:35 am-9:10 am
1 stop5h 35m
Tucson
Tue 7/7
5:15 am-3:10 pm
2 stops7h 55m
$372
St. LouisTucson
STL - TUS
STLTUS
Lambert-St Louis
Wed 7/15
8:25 am-2:10 pm
2 stops7h 45m
Tucson
Tue 7/21
5:15 am-2:10 pm
1 stop6h 55m
$372
Quickest round-trip
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Wed 7/8
6:20 pm-7:30 pm
Nonstop3h 10m
Phoenix Sky Harbor Intl
Wed 7/22
5:00 am-9:50 am
Nonstop2h 50m
$375
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Fri 7/31
1:13 pm-6:33 pm
1 stop7h 20m
Las Vegas Harry Reid Intl
Tue 8/4
6:00 am-11:36 pm
2 stops15h 36m
$399
St. LouisTucson
STL - TUS
STLTUS
Lambert-St Louis
Wed 7/1
5:29 am-11:05 am
2 stops7h 36m
Tucson
Tue 7/7
10:16 am-7:53 pm
2 stops7h 37m
$402
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Wed 7/22
9:15 pm-10:30 pm
Nonstop3h 15m
Phoenix Sky Harbor Intl
Mon 7/27
1:35 pm-6:30 pm
Nonstop2h 55m
$405
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Fri 8/14
1:36 pm-8:04 pm
2 stops8h 28m
Las Vegas Harry Reid Intl
Mon 8/17
7:10 am-3:38 pm
1 stop6h 28m
$409
St. LouisTucson
STL - TUS
STLTUS
Lambert-St Louis
Sat 9/5
6:36 am-1:07 pm
2 stops8h 31m
Tucson
Thu 9/10
11:45 am-7:45 pm
1 stop6h 00m
$418
St. LouisTucson
STL - TUS
STLTUS
Lambert-St Louis
Sat 9/5
8:30 am-1:45 pm
2 stops7h 15m
Tucson
Thu 9/10
11:30 am-8:10 pm
2 stops6h 40m
$423
St. LouisTucson
STL - TUS
STLTUS
Lambert-St Louis
Sun 7/5
5:32 am-8:38 am
1 stop5h 06m
Tucson
Tue 7/14
10:16 am-7:53 pm
2 stops7h 37m
$424
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 June 4, 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 June 4, 2026.
The most flights from STL to USAZ are scheduled on a Thursday (8 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 30, 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 June 4, 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.
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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
Complete your trip to Arizona by adding a car rental and/or hotel reservation to your travel itinerary.
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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 June 4, 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 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 2,558,603 searches. Data last updated June 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$94 | Average$211 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$434 | 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 |