$52+ Cheap flights from Missouri to Phoenix
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Sep 11 — Sep 181
Round-trip
1 adult, Economy
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Find cheap flights from Missouri to Phoenix 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 Missouri to Phoenix
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Cheapest flights from Missouri to PhoenixExplore the most affordable flight options available from Missouri to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
Explore the most affordable flight options available from Missouri to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:10 pm -
1 stop13h 50m
Wed 9/239:15 am -
1 stop8h 02m
Deal found 8/10![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 pm -
1 stop13h 50m
Tue 9/228:56 pm -
1 stop20h 21m
Deal found 8/11![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:29 pm -
2 stops25h 48m
Wed 9/239:15 am -
1 stop8h 02m
Deal found 8/11![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 10/138:10 pm -
1 stop13h 01m
Thu 10/153:40 pm -
1 stop25h 35m
Deal found 8/11![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/85:27 pm -
2 stops21h 08m
Tue 9/153:21 pm -
1 stop25h 56m
Deal found 8/11![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:17 pm -
2 stops13h 26m
Tue 9/228:56 pm -
1 stop20h 21m
Deal found 8/11![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:10 pm -
1 stop13h 50m
Tue 9/223:21 pm -
1 stop25h 56m
Deal found 8/11![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/98:10 pm -
1 stop13h 50m
Wed 9/169:15 am -
1 stop8h 02m
Deal found 8/10![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:10 pm -
1 stop13h 50m
Thu 10/86:36 pm -
1 stop22h 39m
Deal found 8/11![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 10/168:10 pm -
1 stop13h 01m
Mon 10/195:00 pm -
2 stops24h 15m
Deal found 8/11![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:26 am -
2 stops37h 34m
Mon 9/148:56 pm -
1 stop20h 41m
Deal found 8/10![Frontier logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 8/281:38 pm -
1 stop20h 02m
Wed 9/24:48 pm -
1 stop18h 05m
Deal found 8/10![Frontier logo]()
$258
Best flights from Missouri to PhoenixDiscover carefully curated flight deals from Missouri to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
Discover carefully curated flight deals from Missouri to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
This Southwest deal was found by Cheapflights users on 8/10. 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 9/192:15 pm -
Nonstop3h 15m
Sat 9/265:25 pm -
Nonstop3h 00m
Deal found 8/10![Southwest logo]()
$256
This United Airlines deal was found by Cheapflights users on 8/11. 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 12/205:13 pm -
1 stop5h 26m
Thu 12/243:44 pm -
1 stop6h 48m
Deal found 8/11![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 8/7. 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.
Wed 11/253:30 pm -
1 stop7h 41m
Thu 12/37:05 am -
1 stop8h 47m
Deal found 8/7![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 10/176:02 am -
2 stops14h 40m
Mon 10/197:38 am -
2 stops14h 21m
Deal found 8/11![Alaska Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:25 pm -
2 stops30h 26m
Mon 9/146:30 am -
1 stop12h 05m
Deal found 8/10![Multiple Airlines logo]()
$427
This American Airlines deal was found by Cheapflights users on 8/11. 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 10/236:24 pm -
1 stop8h 20m
Sun 10/2511:33 pm -
1 stop8h 25m
Deal found 8/11![American Airlines logo]()
$436
This Southwest deal was found by Cheapflights users on 8/10. 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 9/95:30 pm -
1 stop5h 50m
Wed 9/166:00 am -
Nonstop2h 55m
Deal found 8/10![Southwest logo]()
$265
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:55 pm -
Nonstop2h 55m
Sun 11/86:05 am -
1 stop5h 20m
Deal found 8/11![Southwest logo]()
$279
This United Airlines deal was found by Cheapflights users on 8/11. 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 11/511:27 am -
2 stops10h 58m
Thu 11/1211:21 am -
2 stops11h 31m
Deal found 8/11![United Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 8/11. 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 12/176:45 am -
2 stops6h 05m
Mon 12/216:20 pm -
1 stop4h 05m
Deal found 8/11![Southwest logo]()
$285
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:19 am -
1 stop9h 19m
Tue 9/2911:54 am -
2 stops9h 01m
Deal found 8/7![United Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 8/7. 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 8/287:00 am -
1 stop7h 06m
Tue 9/19:42 am -
1 stop5h 08m
Deal found 8/7![Delta logo]()
$379
This Southwest deal was found by Cheapflights users on 8/11. 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 11/136:45 am -
2 stops6h 05m
Mon 11/164:05 pm -
1 stop4h 55m
Deal found 8/11![Southwest logo]()
$294
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/256:15 am -
1 stop6h 30m
Tue 9/298:30 am -
1 stop5h 36m
Deal found 8/8![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/2911:20 am -
1 stop6h 23m
Tue 10/612:15 pm -
1 stop6h 19m
Deal found 8/11![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 8/11. 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 10/237:00 pm -
1 stop5h 30m
Sun 10/259:25 pm -
Nonstop2h 30m
Deal found 8/11![Southwest logo]()
$308
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/61:53 pm -
2 stops11h 06m
Sat 9/128:45 am -
1 stop8h 01m
Deal found 8/8![United Airlines logo]()
$330
This Southwest deal was found by Cheapflights users on 8/11. 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 2/15:35 am -
2 stops6h 30m
Sat 2/611:05 am -
2 stops7h 45m
Deal found 8/11![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/101:53 pm -
2 stops11h 06m
Wed 9/164:49 pm -
1 stop4h 55m
Deal found 8/11![United Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:25 pm -
1 stop9h 35m
Wed 9/99:20 am -
1 stop9h 15m
Deal found 8/8![Multiple Airlines logo]()
$535
This Southwest deal was found by Cheapflights users on 8/7. 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 9/162:20 pm -
Nonstop2h 45m
Mon 9/215:40 am -
Nonstop2h 30m
Deal found 8/7![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 8/8. 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 8/255:30 am -
2 stops9h 00m
Sat 8/299:23 am -
1 stop5h 01m
Deal found 8/8![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:45 am -
1 stop5h 40m
Sun 11/156:20 am -
Nonstop2h 25m
Deal found 8/7![Southwest logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 8/233:25 pm -
1 stop9h 35m
Wed 8/2610:09 pm -
2 stops36h 41m
Deal found 8/9![Multiple Airlines logo]()
$637
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/95:06 pm -
2 stops7h 53m
Sun 9/138:30 am -
1 stop5h 41m
Deal found 8/8![United Airlines logo]()
$372
This Southwest deal was found by Cheapflights users on 8/8. 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.
Sun 1/101:20 pm -
1 stop6h 10m
Tue 1/125:30 am -
1 stop4h 50m
Deal found 8/8![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 8/10. 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 8/258:30 am -
2 stops10h 40m
Sat 8/296:00 am -
2 stops10h 46m
Deal found 8/10![United Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 8/7. 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 8/2811:10 am -
1 stop5h 00m
Mon 8/313:20 pm -
Nonstop2h 35m
Deal found 8/7![Southwest logo]()
$355
This Southwest deal was found by Cheapflights users on 8/11. 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 10/146:20 am -
Nonstop3h 20m
Sun 10/187:30 am -
1 stop4h 20m
Deal found 8/11![Southwest logo]()
$366
This United Airlines deal was found by Cheapflights users on 8/11. 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 11/118:00 am -
1 stop8h 57m
Sat 11/1412:20 pm -
1 stop8h 18m
Deal found 8/11![United Airlines logo]()
$408
Last-minute flights from Missouri to PhoenixDiscover last-minute flight deals from Missouri to Phoenix. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Phoenix. Data last updated August 12, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:38 pm -
1 stop9h 50m
Sat 8/2910:09 pm -
1 stop15h 53m
Deal found 8/7![Frontier logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 8/281:38 pm -
1 stop20h 02m
Wed 9/24:48 pm -
1 stop18h 05m
Deal found 8/10![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/211:26 am -
2 stops27h 16m
Wed 9/99:15 am -
1 stop8h 22m
Deal found 8/8![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:26 am -
2 stops37h 34m
Mon 9/148:56 pm -
1 stop20h 41m
Deal found 8/10![Frontier logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/85:27 pm -
2 stops21h 08m
Tue 9/153:21 pm -
1 stop25h 56m
Deal found 8/11![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/98:10 pm -
1 stop13h 50m
Wed 9/169:15 am -
1 stop8h 02m
Deal found 8/10![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:10 pm -
1 stop13h 50m
Wed 9/239:15 am -
1 stop8h 02m
Deal found 8/10![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 pm -
1 stop13h 50m
Tue 9/228:56 pm -
1 stop20h 21m
Deal found 8/11![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 pm -
1 stop13h 50m
Mon 9/216:25 am -
2 stops27h 07m
Deal found 8/11![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:17 pm -
2 stops13h 26m
Tue 9/228:56 pm -
1 stop20h 21m
Deal found 8/11![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:29 pm -
2 stops25h 48m
Wed 9/239:15 am -
1 stop8h 02m
Deal found 8/11![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:10 pm -
1 stop13h 50m
Tue 9/223:21 pm -
1 stop25h 56m
Deal found 8/11![Frontier logo]()
$171
One-way flights from Missouri to PhoenixSearch for one-way flight options from Missouri to Phoenix. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
Search for one-way flight options from Missouri to Phoenix. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:32 pm -
1 stop13h 28m
Deal found 8/11![Frontier logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 11/112:17 pm -
1 stop11h 30m
Deal found 8/11![Frontier logo]()
$55
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:10 pm -
1 stop20h 07m
Deal found 8/10![Frontier logo]()
$57
This Trip.com deal was found by Cheapflights users on 8/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:32 pm -
1 stop13h 28m
Deal found 8/11![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 10/132:17 pm -
1 stop11h 16m
Deal found 8/11![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:17 pm -
1 stop18h 54m
Deal found 8/11![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 11/62:17 pm -
1 stop26h 18m
Deal found 8/10![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 10/138:10 pm -
1 stop22h 52m
Deal found 8/11![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 pm -
1 stop25h 41m
Deal found 8/10![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/98:32 pm -
1 stop13h 28m
Deal found 8/11![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:38 pm -
1 stop12h 01m
Deal found 8/11![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:32 pm -
1 stop13h 28m
Deal found 8/11![Frontier logo]()
$82
Find flight deals from Missouri to Phoenix
Keep the following information in mind while searching for Missouri to Phoenix flight deals. Data was last updated August 12, 2026.
Round-trip from | $124 (Kiwi.com) |
|---|---|
One-way from | $52 (Kiwi.com) |
Popular in | May |
Cheapest in | December |
Average price | $341 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Phoenix 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 August 12, 2026.
Use the filters below to find and compare flights from Missouri to Phoenix that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisPhoenix
STL Lambert-St Louis - PHX Phoenix Sky Harbor Intl
STLPHX
Lambert-St Louis
Sat 9/19
2:15 pm-3:30 pm
Nonstop3h 15m
Phoenix Sky Harbor Intl
Sat 9/26
5:25 pm-10:25 pm
Nonstop3h 00m
$256
St. LouisPhoenix
STL Lambert-St Louis - PHX Phoenix Sky Harbor Intl
STLPHX
Lambert-St Louis
Wed 9/9
5:30 pm-9:20 pm
1 stop5h 50m
Phoenix Sky Harbor Intl
Wed 9/16
6:00 am-10:55 am
Nonstop2h 55m
$265
Kansas CityPhoenix
MCI Kansas City - PHX Phoenix Sky Harbor Intl
MCIPHX
Kansas City
Thu 11/5
9:55 pm-11:50 pm
Nonstop2h 55m
Phoenix Sky Harbor Intl
Sun 11/8
6:05 am-12:25 pm
1 stop5h 20m
$279
Kansas CityPhoenix
MCI Kansas City - PHX Phoenix Sky Harbor Intl
MCIPHX
Kansas City
Thu 12/17
6:45 am-11:50 am
2 stops6h 05m
Phoenix Sky Harbor Intl
Mon 12/21
6:20 pm-11:25 pm
1 stop4h 05m
$285
Kansas CityPhoenix
MCI Kansas City - PHX Phoenix Sky Harbor Intl
MCIPHX
Kansas City
Sun 12/20
5:13 pm-9:39 pm
1 stop5h 26m
Phoenix Sky Harbor Intl
Thu 12/24
3:44 pm-11:32 pm
1 stop6h 48m
$289
Kansas CityPhoenix
MCI Kansas City - PHX Phoenix Sky Harbor Intl
MCIPHX
Kansas City
Fri 11/13
6:45 am-11:50 am
2 stops6h 05m
Phoenix Sky Harbor Intl
Mon 11/16
4:05 pm-10:00 pm
1 stop4h 55m
$294
Kansas CityPhoenix
MCI Kansas City - PHX Phoenix Sky Harbor Intl
MCIPHX
Kansas City
Fri 10/23
7:00 pm-10:30 pm
1 stop5h 30m
Phoenix Sky Harbor Intl
Sun 10/25
9:25 pm-1:55 am
Nonstop2h 30m
$308
Kansas CityPhoenix
MCI Kansas City - PHX Phoenix Sky Harbor Intl
MCIPHX
Kansas City
Mon 2/1
5:35 am-11:05 am
2 stops6h 30m
Phoenix Sky Harbor Intl
Sat 2/6
11:05 am-7:50 pm
2 stops7h 45m
$315
Quickest round-trip
Kansas CityPhoenix
MCI Kansas City - PHX Phoenix Sky Harbor Intl
MCIPHX
Kansas City
Wed 9/16
2:20 pm-3:05 pm
Nonstop2h 45m
Phoenix Sky Harbor Intl
Mon 9/21
5:40 am-10:10 am
Nonstop2h 30m
$317
Kansas CityPhoenix
MCI Kansas City - PHX Phoenix Sky Harbor Intl
MCIPHX
Kansas City
Thu 11/5
11:27 am-9:25 pm
2 stops10h 58m
Phoenix Sky Harbor Intl
Thu 11/12
11:21 am-11:52 pm
2 stops11h 31m
$321
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Phoenix
Have a flexible travel schedule? Discover the best time to fly to Phoenix from Missouri with our price prediction graph.
STL-PHX
MCI-PHX
SGF-PHX
CGI-PHX
COU-PHX
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 Missouri to Phoenix
USMO-PH1
STL-PHX
MCI-PHX
SGF-PHX
CGI-PHX
What is the cheapest month to book a flight from Missouri to Phoenix?
Currently, December is the cheapest month in which you can book a flight from Missouri to Phoenix (average of $303). Flying from Missouri to Phoenix in June is currently the most expensive (average of $409). 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 MO to PHX?
Find hourly flight availability from Missouri to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 12, 2026.
When flying from Missouri to Phoenix, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 39% versus a flight in the afternoon.
Weekly flight availability from Missouri to Phoenix
Explore weekly flight availability from Missouri to Phoenix. 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 August 12, 2026.
The most flights from USMO to PH1 are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Missouri to Phoenix?
Airfare is below average for this route at the moment.
Missouri to Phoenix flights typically cost between $347 and $474 in September.The cheapest round-trip price found within the last 5 days was $124 on Frontier (Sep 11-Sep 23).
How far ahead should I book a flight from Missouri to Phoenix?
The best time to book flights from Missouri to Phoenix is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Missouri to Phoenix?
Use this chart to determine the cheapest time to fly round-trip from Missouri to Phoenix. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Missouri to Phoenix flight should consider departing on Saturday mornings 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.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Phoenix. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Missouri to Phoenix
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Phoenix by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Phoenix by cabin class
Find flights from Missouri to Phoenix, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Phoenix flights
Browse other Missouri and Phoenix flight options. Last updated on August 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Missouri to Phoenix flights
Consider these flights traveling from Missouri to Phoenix.
Top 7 airlines flying from Missouri to Phoenix
Discover the top 7 airlines that operate flights from Missouri to Phoenix. 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 August 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$227 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$334 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$134 | Average$249 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$148 | Average$369 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$429 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$214 | Average$409 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$292 | Average$380 | FlexibilityNo cancel fee | On-time62% |