$71+ Cheap flights from Missouri to Sky Harbor Intl (PHX)
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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Aug 30 — Sep 61
Round-trip
1 adult, Economy
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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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Cheapest flights from Missouri to Sky Harbor IntlExplore the most affordable flight options available from Missouri to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.
Explore the most affordable flight options available from Missouri to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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
STL
- PHX
1 stop29h 23m
Frontier
Wed 10/218:16 am
PHX
- STL
1 stop8h 59m
Frontier
Deal found 7/28![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:10 pm
STL
- PHX
1 stop13h 50m
Frontier
Wed 9/239:15 am
PHX
- STL
1 stop8h 02m
Frontier
Deal found 7/31![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:10 pm
STL
- PHX
1 stop20h 25m
Frontier
Tue 10/136:36 pm
PHX
- STL
1 stop22h 39m
Frontier
Deal found 7/29![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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
STL
- PHX
1 stop13h 50m
Frontier
Wed 10/79:15 am
PHX
- STL
1 stop8h 02m
Frontier
Deal found 7/28![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:27 pm
STL
- PHX
1 stop7h 33m
Frontier
Wed 9/99:15 am
PHX
- STL
1 stop8h 02m
Frontier
Deal found 7/31![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm
STL
- PHX
1 stop13h 50m
Frontier
Wed 9/309:15 am
PHX
- STL
1 stop8h 02m
Frontier
Deal found 7/29![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm
STL
- PHX
1 stop13h 50m
Frontier
Tue 9/298:56 pm
PHX
- STL
1 stop20h 21m
Frontier
Deal found 7/29![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:10 pm
STL
- PHX
1 stop13h 50m
Frontier
Fri 10/26:25 am
PHX
- STL
1 stop10h 52m
Frontier
Deal found 7/30![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:10 pm
STL
- PHX
1 stop13h 01m
Frontier
Mon 10/126:36 pm
PHX
- STL
1 stop22h 39m
Frontier
Deal found 7/30![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:10 pm
STL
- PHX
1 stop13h 50m
Frontier
Mon 9/1411:29 am
PHX
- STL
1 stop5h 48m
Frontier
Deal found 7/29![Frontier logo]()
$184
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:32 pm
MCI
- PHX
1 stop5h 11m
Frontier
Sat 9/196:25 am
PHX
- MCI
1 stop11h 12m
Frontier
Deal found 7/29![Frontier logo]()
$257
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:17 pm
MCI
- PHX
1 stop11h 30m
Frontier
Sat 11/77:40 am
PHX
- MCI
1 stop4h 42m
Frontier
Deal found 7/29![Frontier logo]()
$258
Best flights from Missouri to Sky Harbor IntlDiscover carefully curated flight deals from Missouri to Sky Harbor Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2026.
Discover carefully curated flight deals from Missouri to Sky Harbor Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 10/76:17 am
MCI
- PHX
2 stops16h 24m
Alaska Airlines
Wed 10/147:38 am
PHX
- MCI
2 stops14h 21m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$264
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/287:15 pm
MCI
- PHX
Nonstop2h 45m
Southwest
Tue 9/15:55 pm
PHX
- MCI
Nonstop2h 35m
Southwest
Deal found 7/27![Southwest logo]()
$267
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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
COU
- PHX
2 stops12h 55m
United Airlines
Sat 11/142:50 pm
PHX
- COU
1 stop4h 51m
United Airlines
Deal found 7/27![United Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/185:34 pm
SGF
- PHX
1 stop7h 08m
Delta
Mon 9/2111:59 pm
PHX
- SGF
1 stop8h 43m
Delta
Deal found 7/26![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:44 pm
SGF
- PHX
1 stop6h 41m
American Airlines
Mon 11/95:10 pm
PHX
- SGF
1 stop5h 42m
American Airlines
Deal found 7/26![American Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 10/237:40 pm
MCI
- PHX
Nonstop3h 00m
Southwest
Mon 10/265:05 am
PHX
- MCI
Nonstop2h 30m
Southwest
Deal found 7/28![Southwest logo]()
$267
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/186:20 am
MCI
- PHX
Nonstop2h 45m
Southwest
Fri 9/255:40 am
PHX
- MCI
Nonstop2h 30m
Southwest
Deal found 7/26![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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
SGF
- PHX
1 stop7h 41m
Delta
Thu 12/37:05 am
PHX
- SGF
1 stop8h 47m
Delta
Deal found 7/28![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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
MCI
- PHX
1 stop5h 00m
Southwest
Mon 8/317:10 pm
PHX
- MCI
Nonstop2h 35m
Southwest
Deal found 7/27![Southwest logo]()
$273
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 10/217:02 am
STL
- PHX
2 stops15h 39m
Alaska Airlines
Mon 10/267:38 am
PHX
- STL
2 stops14h 21m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/1311:20 am
SGF
- PHX
2 stops8h 40m
United Airlines
Mon 8/179:23 am
PHX
- SGF
1 stop5h 01m
United Airlines
Deal found 7/26![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/182:20 pm
MCI
- PHX
Nonstop2h 45m
Southwest
Tue 9/16:15 am
PHX
- MCI
1 stop4h 30m
Southwest
Deal found 7/28![Southwest logo]()
$273
This Delta deal was found by Cheapflights users on 7/31. 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 11/54:00 pm
SGF
- PHX
1 stop7h 45m
Delta
Thu 11/127:05 am
PHX
- SGF
1 stop8h 47m
Delta
Deal found 7/31![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:02 am
STL
- PHX
1 stop11h 08m
Alaska Airlines
Wed 10/77:38 am
PHX
- STL
2 stops14h 21m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 8/143:12 pm
COU
- PHX
1 stop9h 09m
United Airlines
Tue 8/186:20 am
PHX
- COU
1 stop6h 10m
United Airlines
Deal found 7/30![United Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am
MCI
- PHX
1 stop5h 20m
Southwest
Mon 9/285:40 am
PHX
- MCI
Nonstop2h 30m
Southwest
Deal found 7/30![Southwest logo]()
$277
This Delta deal was found by Cheapflights users on 7/31. 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.
Tue 9/86:15 am
STL
- PHX
1 stop6h 10m
Delta
Sun 9/135:15 pm
PHX
- STL
1 stop5h 29m
Delta
Deal found 7/31![Delta logo]()
$357
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:40 pm
MCI
- PHX
Nonstop3h 00m
Southwest
Mon 10/57:05 pm
PHX
- MCI
Nonstop2h 30m
Southwest
Deal found 7/29![Southwest logo]()
$283
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/271:37 pm
SGF
- PHX
1 stop5h 33m
United Airlines
Thu 9/36:09 am
PHX
- SGF
1 stop8h 02m
United Airlines
Deal found 7/28![United Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 7/31. 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 9/36:20 am
STL
- PHX
1 stop8h 17m
Delta
Sun 9/135:15 pm
PHX
- STL
1 stop5h 29m
Delta
Deal found 7/31![Delta logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 9/286:29 am
STL
- PHX
2 stops14h 38m
Alaska Airlines
Wed 9/307:49 pm
PHX
- STL
2 stops20h 49m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 11/77:00 am
JLN
- PHX
1 stop8h 14m
United Airlines
Thu 11/125:41 pm
PHX
- JLN
1 stop5h 03m
United Airlines
Deal found 7/30![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 1/97:02 am
JLN
- PHX
1 stop7h 57m
United Airlines
Tue 1/129:50 am
PHX
- JLN
1 stop6h 21m
United Airlines
Deal found 7/30![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 7/31. 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.
Fri 9/184:10 pm
MCI
- PHX
Nonstop2h 50m
Southwest
Sun 9/278:05 pm
PHX
- MCI
Nonstop2h 40m
Southwest
Deal found 7/31![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 7/31. 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.
Sun 9/611:13 am
STL
- PHX
1 stop6h 48m
Delta
Sun 9/135:15 pm
PHX
- STL
1 stop5h 29m
Delta
Deal found 7/31![Delta logo]()
$417
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 1/97:02 am
JLN
- PHX
1 stop7h 57m
United Airlines
Wed 1/1310:50 am
PHX
- JLN
1 stop5h 21m
United Airlines
Deal found 7/27![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 10/147:00 pm
MCI
- PHX
Nonstop3h 00m
Southwest
Sun 10/185:30 am
PHX
- MCI
Nonstop2h 30m
Southwest
Deal found 7/28![Southwest logo]()
$343
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 9/113:11 pm
COU
- PHX
2 stops9h 48m
United Airlines
Tue 9/152:21 pm
PHX
- COU
1 stop6h 34m
United Airlines
Deal found 7/27![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/2611:55 am
STL
- PHX
Nonstop3h 10m
Southwest
Wed 9/21:20 pm
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 7/27![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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.
Mon 11/91:33 pm
JLN
- PHX
2 stops9h 26m
United Airlines
Wed 11/184:31 pm
PHX
- JLN
1 stop6h 13m
United Airlines
Deal found 7/27![United Airlines logo]()
$424
Last-minute flights from Missouri to Sky Harbor IntlDiscover last-minute flight deals from Missouri to Sky Harbor Intl. Data last updated July 31, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Sky Harbor Intl. Data last updated July 31, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/178:08 pm
STL
- PHX
1 stop19h 09m
Frontier
Wed 8/194:48 pm
PHX
- STL
1 stop24h 25m
Frontier
Deal found 7/26![Frontier logo]()
$210
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/171:45 pm
MCI
- PHX
1 stop11h 42m
Frontier
Thu 8/206:35 am
PHX
- MCI
1 stop4h 45m
Frontier
Deal found 7/30![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/185:27 pm
STL
- PHX
1 stop7h 33m
Frontier
Mon 8/248:35 am
PHX
- STL
1 stop8h 38m
Frontier
Deal found 7/28![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:27 pm
STL
- PHX
1 stop20h 59m
Frontier
Thu 8/206:35 am
PHX
- STL
1 stop10h 38m
Frontier
Deal found 7/29![Frontier logo]()
$207
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/202:05 pm
MCI
- PHX
1 stop22h 06m
Frontier
Mon 8/249:03 am
PHX
- MCI
1 stop4h 59m
Frontier
Deal found 7/29![Frontier logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/247:58 pm
STL
- PHX
1 stop16h 13m
Frontier
Wed 8/264:48 pm
PHX
- STL
1 stop24h 25m
Frontier
Deal found 7/28![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/255:27 pm
STL
- PHX
1 stop7h 33m
Frontier
Wed 8/264:48 pm
PHX
- STL
1 stop24h 25m
Frontier
Deal found 7/28![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:58 pm
STL
- PHX
1 stop5h 41m
Frontier
Thu 9/38:35 am
PHX
- STL
1 stop8h 38m
Frontier
Deal found 7/30![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:27 pm
STL
- PHX
1 stop7h 33m
Frontier
Mon 8/314:40 pm
PHX
- STL
1 stop21h 51m
Frontier
Deal found 7/31![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/286:17 pm
STL
- PHX
1 stop26h 14m
Frontier
Mon 8/318:35 am
PHX
- STL
1 stop8h 38m
Frontier
Deal found 7/26![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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
MCI
- PHX
1 stop20h 02m
Frontier
Tue 9/19:10 am
PHX
- MCI
2 stops23h 31m
Frontier
Deal found 7/27![Frontier logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/291:38 pm
MCI
- PHX
2 stops11h 46m
Frontier
Sun 8/306:57 pm
PHX
- MCI
1 stop15h 56m
Frontier
Deal found 7/27![Frontier logo]()
$258
One-way flights from Missouri to Sky Harbor IntlSearch for one-way flight options from Missouri to Sky Harbor Intl. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
Search for one-way flight options from Missouri to Sky Harbor Intl. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:32 pm
MCI
- PHX
1 stop13h 28m
Frontier
Deal found 7/29![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:17 pm
MCI
- PHX
1 stop23h 20m
Frontier
Deal found 7/29![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:32 pm
STL
- PHX
1 stop19h 17m
Frontier
Deal found 7/27![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:32 pm
MCI
- PHX
1 stop13h 28m
Frontier
Deal found 7/31![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:38 pm
MCI
- PHX
1 stop20h 02m
Frontier
Deal found 7/30![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:38 pm
MCI
- PHX
1 stop25h 39m
Frontier
Deal found 7/29![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/241:38 pm
MCI
- PHX
1 stop22h 33m
Frontier
Deal found 7/28![Frontier logo]()
$88
This Trip.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:38 pm
MCI
- PHX
1 stop20h 02m
Frontier
Deal found 7/29![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:10 pm
STL
- PHX
1 stop13h 50m
Frontier
Deal found 7/30![Frontier logo]()
$89
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/301:38 pm
MCI
- PHX
1 stop12h 01m
Frontier
Deal found 7/30![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/131:02 pm
STL
- PHX
1 stop8h 49m
Frontier
Deal found 7/30![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:10 pm
STL
- PHX
1 stop13h 50m
Frontier
Deal found 7/30![Frontier logo]()
$94
Find flight deals from Missouri to Sky Harbor Intl
Keep the following information in mind while searching for Missouri to Sky Harbor Intl flight deals. Data was last updated July 31, 2026.
Round-trip from | $152 (Kiwi.com) |
|---|---|
One-way from | $71 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $393 |
Good round-trip deal | $345 or less |
Good one-way deal | $177 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Sky Harbor Intl 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 July 31, 2026.
Use the filters below to find and compare flights from Missouri to Phoenix Sky Harbor Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Kansas CityPhoenix
MCI - PHX
MCIPHX
Kansas City
Wed 10/7
6:17 am-8:41 pm
2 stops16h 24m
Phoenix Sky Harbor Intl
Wed 10/14
7:38 am-11:59 pm
2 stops14h 21m
$264
Kansas CityPhoenix
MCI - PHX
MCIPHX
Kansas City
Fri 8/28
7:15 pm-8:00 pm
Nonstop2h 45m
Phoenix Sky Harbor Intl
Tue 9/1
5:55 pm-10:30 pm
Nonstop2h 35m
$267
Kansas CityPhoenix
MCI - PHX
MCIPHX
Kansas City
Fri 10/23
7:40 pm-8:40 pm
Nonstop3h 00m
Phoenix Sky Harbor Intl
Mon 10/26
5:05 am-9:35 am
Nonstop2h 30m
$267
Quickest round-trip
Kansas CityPhoenix
MCI - PHX
MCIPHX
Kansas City
Fri 9/18
6:20 am-7:05 am
Nonstop2h 45m
Phoenix Sky Harbor Intl
Fri 9/25
5:40 am-10:10 am
Nonstop2h 30m
$267
Kansas CityPhoenix
MCI - PHX
MCIPHX
Kansas City
Fri 8/28
11:10 am-2:10 pm
1 stop5h 00m
Phoenix Sky Harbor Intl
Mon 8/31
7:10 pm-11:45 pm
Nonstop2h 35m
$273
Kansas CityPhoenix
MCI - PHX
MCIPHX
Kansas City
Tue 8/18
2:20 pm-3:05 pm
Nonstop2h 45m
Phoenix Sky Harbor Intl
Tue 9/1
6:15 am-12:45 pm
1 stop4h 30m
$273
Kansas CityPhoenix
MCI - PHX
MCIPHX
Kansas City
Fri 9/25
6:00 am-9:20 am
1 stop5h 20m
Phoenix Sky Harbor Intl
Mon 9/28
5:40 am-10:10 am
Nonstop2h 30m
$277
Kansas CityPhoenix
MCI - PHX
MCIPHX
Kansas City
Thu 10/1
7:40 pm-8:40 pm
Nonstop3h 00m
Phoenix Sky Harbor Intl
Mon 10/5
7:05 pm-11:35 pm
Nonstop2h 30m
$283
ColumbiaPhoenix
COU - PHX
COUPHX
Columbia Regional
Wed 11/11
8:00 am-7:55 pm
2 stops12h 55m
Phoenix Sky Harbor Intl
Sat 11/14
2:50 pm-8:41 pm
1 stop4h 51m
$324
SpringfieldPhoenix
SGF - PHX
SGFPHX
Springfield-Branson
Fri 9/18
5:34 pm-10:42 pm
1 stop7h 08m
Phoenix Sky Harbor Intl
Mon 9/21
11:59 pm-10:42 am
1 stop8h 43m
$329
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Sky Harbor Intl
Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from Missouri with our price prediction graph.
STL-PHX
MCI-PHX
COU-PHX
SGF-PHX
JLN-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 Sky Harbor Intl Airport
USMO-PHX
STL-PHX
MCI-PHX
COU-PHX
SGF-PHX
What is the cheapest month to book a flight from Missouri to Phoenix Sky Harbor Intl Airport?
Currently, December is the cheapest month in which you can book a flight from Missouri to Phoenix Sky Harbor Intl Airport (average of $306). Flying from Missouri to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of $417). 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 Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2026.
When flying from Missouri to Phoenix Sky Harbor Intl Airport, 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 20% versus a flight in the morning.
Weekly flight availability from Missouri to Phoenix Sky Harbor Intl Airport
Explore weekly flight availability from Missouri to Sky Harbor Intl. 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 July 31, 2026.
The most flights from USMO to PHX are scheduled on a Monday (9 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Missouri to Phoenix Sky Harbor Intl Airport?
Airfare is below average for this route at the moment.
Missouri to Phoenix Sky Harbor Intl Airport flights typically cost between $342 and $397 in October.The cheapest round-trip price found within the last 5 days was $152 on Frontier (Oct 13-Oct 21).
How far ahead should I book a flight from Missouri to Phoenix Sky Harbor Intl Airport?
The price you pay for your flight from Missouri to Phoenix Sky Harbor Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 70 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 Missouri to Phoenix Sky Harbor Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Missouri to Sky Harbor Intl. Price data was last updated on July 25, 2026.
Travelers seeking maximum savings on their Missouri to Phoenix Sky Harbor Intl Airport 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.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Sky Harbor Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Phoenix Sky Harbor Intl Airport?
Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locationsGlendale
Buckeye
Goodyear
Surprise
Wickenburg
Paradise Valley
Peoria
Casa Grande
Chandler
Camp Verde
Globe
Payson
Fountain Hills
Guadalupe
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Missouri to Sky Harbor Intl
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Complete your trip
Complete your trip to Sky Harbor Intl by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Missouri to Sky Harbor Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Sky Harbor Intl flights
Browse other Missouri and Sky Harbor Intl flight options. Last updated on July 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Sky Harbor Intl
Explore flights to Sky Harbor Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 31, 2026.
Missouri to Sky Harbor Intl flights
Consider these flights traveling from Missouri to Sky Harbor Intl.
Top 6 airlines flying from Missouri to Sky Harbor Intl
Discover the top 6 airlines that operate flights from Missouri to Sky Harbor Intl. 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 July 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$226 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$304 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$148 | Average$389 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$199 | Average$422 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$212 | Average$407 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$292 | Average$380 | FlexibilityNo cancel fee | On-time62% |