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Sky Harbor Intl

$40+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Feb 15 — Feb 221
Sun 2/15
Sun 2/22
1 adult, Economy
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Cheap 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 January 16, 2026.

Round-trip from

$126
(Kiwi.com)

One-way from

$40
(Super.com)

Popular in

March

Cheapest in

November

Average price

$368

Good round-trip deal

$237 or less

Good one-way deal

$149 or less
From Missouri to Phoenix Sky Harbor Intl
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One-way flight from Missouri to Phoenix Sky Harbor Intl
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Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Missouri to Phoenix Sky Harbor Intl.
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Price to beat on a one-way flight from Missouri to Phoenix Sky Harbor Intl.
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Find flight deals from Missouri to Sky Harbor Intl

Cheapest flights from Missouri to Sky Harbor Intl
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 January 16, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” 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 2/151:44 pm
MCI
-
PHX
1 stop11h 57m
Frontier
Thu 2/262:27 pm
PHX
-
MCI
Nonstop2h 32m
Frontier
Deal found 1/15$126
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” 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 2/278:33 pm
MCI
-
PHX
1 stop26h 08m
Frontier
Wed 3/46:00 am
PHX
-
MCI
1 stop8h 44m
Frontier
Deal found 1/14$130
This Frontier deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” 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 2/238:33 pm
MCI
-
PHX
1 stop5h 08m
Frontier
Thu 2/262:27 pm
PHX
-
MCI
Nonstop2h 32m
Frontier
Deal found 1/15$134
This Kiwi.com deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” 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 3/28:33 pm
MCI
-
PHX
1 stop13h 09m
Frontier
Fri 3/610:24 pm
PHX
-
MCI
1 stop20h 31m
Frontier
Deal found 1/15$136
This Frontier deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” 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 4/28:34 pm
MCI
-
PHX
Nonstop3h 02m
Frontier
Sun 4/53:00 pm
PHX
-
MCI
Nonstop2h 34m
Frontier
Deal found 1/14$138
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” 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 2/148:36 pm
MCI
-
PHX
1 stop12h 36m
Frontier
Thu 2/199:17 am
PHX
-
MCI
1 stop9h 16m
Frontier
Deal found 1/14$142
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” 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 2/218:36 pm
MCI
-
PHX
1 stop12h 36m
Multiple Airlines
Tue 2/243:05 pm
PHX
-
MCI
1 stop7h 28m
Multiple Airlines
Deal found 1/14$143
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” 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 2/47:00 am
MCI
-
PHX
1 stop9h 11m
Multiple Airlines
Wed 2/116:00 am
PHX
-
MCI
1 stop8h 44m
Multiple Airlines
Deal found 1/14$145
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” 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 2/47:00 am
MCI
-
PHX
1 stop9h 11m
Multiple Airlines
Thu 2/122:27 pm
PHX
-
MCI
Nonstop2h 32m
Multiple Airlines
Deal found 1/14$148
This Kiwi.com deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” 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 2/98:41 pm
MCI
-
PHX
1 stop13h 01m
Frontier
Fri 2/1310:39 pm
PHX
-
MCI
1 stop20h 07m
Frontier
Deal found 1/15$151
This Kiwi.com deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” 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 1/251:03 pm
STL
-
PHX
Nonstop3h 41m
Frontier
Tue 1/273:55 pm
PHX
-
STL
1 stop21h 51m
Frontier
Deal found 1/15$187
This Kiwi.com deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” 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 2/2010:11 pm
STL
-
PHX
1 stop21h 43m
Multiple Airlines
Thu 2/266:30 am
PHX
-
STL
2 stops13h 56m
Multiple Airlines
Deal found 1/15$188

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 January 16, 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

Missouri

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

ColumbiaPhoenix

COU - PHX

COUPHX

Columbia Regional

Sat 2/14

3:10 pm-11:03 pm

1 stop8h 53m

Phoenix Sky Harbor Intl

Sat 2/28

2:52 pm-8:24 pm

1 stop4h 32m

$268

ColumbiaPhoenix

COU - PHX

COUPHX

Columbia Regional

Sat 2/21

11:15 am-7:18 pm

1 stop9h 03m

Phoenix Sky Harbor Intl

Wed 2/25

12:58 pm-8:24 pm

1 stop6h 26m

$268

ColumbiaPhoenix

COU - PHX

COUPHX

Columbia Regional

Mon 2/23

11:15 am-5:19 pm

1 stop7h 04m

Phoenix Sky Harbor Intl

Sat 2/28

8:30 am-8:24 pm

2 stops10h 54m

$274

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Wed 3/18

8:11 pm-11:39 pm

1 stop5h 28m

Phoenix Sky Harbor Intl

Tue 3/24

7:05 am-2:54 pm

1 stop5h 49m

$279

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 4/8

6:05 pm-10:09 pm

1 stop6h 04m

Phoenix Sky Harbor Intl

Tue 4/14

1:50 pm-8:54 pm

1 stop5h 04m

$293

SpringfieldPhoenix

SGF - PHX

SGFPHX

Springfield-Branson

Thu 1/29

5:03 pm-10:59 pm

1 stop6h 56m

Phoenix Sky Harbor Intl

Fri 2/6

1:57 pm-9:58 pm

1 stop7h 01m

$294

ColumbiaPhoenix

COU - PHX

COUPHX

Columbia Regional

Fri 2/6

8:45 am-7:12 pm

2 stops11h 27m

Phoenix Sky Harbor Intl

Tue 2/10

12:53 pm-8:33 pm

1 stop6h 40m

$295

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Sat 2/21

5:25 pm-7:55 pm

Nonstop3h 30m

Phoenix Sky Harbor Intl

Sat 2/28

6:55 pm-10:45 pm

Nonstop2h 50m

$297

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 3/31

9:10 am-4:54 pm

2 stops9h 44m

Phoenix Sky Harbor Intl

Tue 4/21

12:37 pm-10:28 pm

1 stop7h 51m

$302

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 5/12

6:00 am-11:08 am

1 stop7h 08m

Phoenix Sky Harbor Intl

Tue 5/19

11:30 pm-4:26 pm

2 stops14h 56m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 60 results
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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.
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

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 $98). Flying from Missouri to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of $214). 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 January 16, 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 13% versus a flight in the morning.

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 January 10, 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 evenings 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.

  • How long is the flight from Missouri to Phoenix Sky Harbor Intl Airport?

    Departing from Missouri to Phoenix Sky Harbor Intl Airport will take you 3h 30m. The distance from Missouri to Phoenix Sky Harbor Intl Airport is about 1258 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Missouri to Phoenix Sky Harbor Intl Airport?

    While some choose either Kansas City - Phoenix Sky Harbor Intl or Springfield-Branson - Phoenix Sky Harbor Intl, Lambert-St Louis - Phoenix Sky Harbor Intl is the most popular route from Missouri to Phoenix Sky Harbor Intl Airport.

  • What are the most reliable airlines from Missouri to Phoenix Sky Harbor Intl Airport?

    The top 3 most reliable airlines when flying from Missouri to Phoenix Sky Harbor Intl Airport are American Airlines (87%), Alaska Airlines (87%) and Frontier (80%).

  • What are the cheapest flights from Missouri to Phoenix Sky Harbor Intl Airport?

    Looking at all options, your cheapest flight can be booked for $99. While the most popular route (Lambert-St Louis - Phoenix Sky Harbor Intl) can be booked for $153 on average, our data indicates $903 when flying from Missouri to Phoenix Sky Harbor Intl Airport.

  • Can I find deals for flights from Missouri to Sky Harbor Intl that include hotel bookings?

    Yes. In addition to deals on Missouri to Sky Harbor Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Sky Harbor Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Sky Harbor Intl.

  • Can I find deals for business class flights from Missouri to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Missouri to Sky Harbor Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $98). Flying from Missouri to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of $214). 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.

See more FAQs

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 locations
Goodyear
Paradise Valley
Glendale
Casa Grande
Globe
Peoria
Chandler
Payson
Camp Verde
Buckeye
Surprise
Avondale
Guadalupe

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Alternative routes for Missouri to Sky Harbor Intl

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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 January 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$85Average$198FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$121Average$200FlexibilityNo cancel feeOn-time65%
DeltaCheapest$138Average$342FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$390FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$203Average$386FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$206Average$426FlexibilityNo cancel feeOn-time71%

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