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$27+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from Missouri to Phoenix

Keep the following information in mind while searching for Missouri to Phoenix flight deals. Data was last updated November 26, 2025.

Round-trip from

$130
(Kiwi.com)

One-way from

$27
(FlightHub)

Popular in

March

Cheapest in

October

Average price

$318
From Missouri to Phoenix
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One-way flight from Missouri to Phoenix
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Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Missouri to Phoenix

Cheapest flights from Missouri to Phoenix
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 November 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” 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 12/1110:52 amMCI - PHX
Nonstop3h 02mFrontier
Sun 12/147:25 amPHX - MCI
Nonstop2h 38mFrontier
Deal found 11/25$130
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Thu 12/1811:53 amMCI - PHX
Nonstop3h 02mFrontier
Mon 1/261:20 pmPHX - MCI
1 stop5h 31mFrontier
Deal found 11/26$133
This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” 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 12/208:45 pmMCI - PHX
1 stop4h 59mFrontier
Thu 1/17:20 amPHX - MCI
Nonstop2h 38mFrontier
Deal found 11/25$135
This Expedia deal was found by Cheapflights users on 11/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1811:53 amMCI - PHX
Nonstop3h 02mFrontier
Sun 12/213:43 pmPHX - MCI
1 stop27h 07mFrontier
Deal found 11/26$139
This Super.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:53 amMCI - PHX
Nonstop3h 02mFrontier
Thu 1/17:20 amPHX - MCI
Nonstop2h 38mFrontier
Deal found 11/25$142
This Frontier deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” 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 12/1110:52 amMCI - PHX
Nonstop3h 02mFrontier
Thu 12/187:20 amPHX - MCI
Nonstop2h 38mFrontier
Deal found 11/24$147
This Frontier deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” 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 12/1110:52 amMCI - PHX
Nonstop3h 02mFrontier
Mon 12/159:16 amPHX - MCI
1 stop9h 34mFrontier
Deal found 11/24$148
This Frontier deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:45 pmMCI - PHX
1 stop4h 44mFrontier
Thu 1/17:20 amPHX - MCI
Nonstop2h 38mFrontier
Deal found 11/24$155
This Mytrip deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:43 pmSTL - PHX
1 stop6h 01mFrontier
Mon 12/157:25 amPHX - STL
Nonstop2h 57mFrontier
Deal found 11/25$162
This Kiwi.com deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” 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 12/121:16 pmSTL - PHX
1 stop6h 15mFrontier
Mon 12/157:25 amPHX - STL
Nonstop2h 57mFrontier
Deal found 11/24$165
This Frontier deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:42 pmSTL - PHX
Nonstop3h 31mFrontier
Sun 12/2810:31 pmPHX - STL
1 stop10h 31mFrontier
Deal found 11/25$172
This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” 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 12/198:42 pmSTL - PHX
Nonstop3h 31mFrontier
Fri 12/263:50 pmPHX - STL
Nonstop2h 57mFrontier
Deal found 11/25$173

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 November 26, 2025.
Use the filters below to find and compare flights from Missouri to Phoenix that are best for you.

Fly from

Missouri

Fly to

Phoenix

Route

Depart

Return

Price

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Tue 12/9

6:28 am-1:12 pm

1 stop7h 44m

Phoenix Sky Harbor Intl

Wed 12/17

7:15 am-3:00 pm

1 stop6h 45m

$228

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Tue 12/23

5:50 am-7:50 am

Nonstop3h 00m

Phoenix Sky Harbor Intl

Wed 12/31

5:10 am-11:55 am

1 stop5h 45m

$241

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Tue 2/3

3:46 pm-11:15 pm

1 stop8h 29m

Phoenix Sky Harbor Intl

Fri 2/13

12:59 am-10:48 am

1 stop8h 49m

$247

ColumbiaPhoenix

COU - PHX

COUPHX

Columbia Regional

Sat 5/2

9:00 am-12:20 pm

1 stop5h 20m

Phoenix Sky Harbor Intl

Thu 5/7

12:50 pm-9:10 pm

1 stop6h 20m

$248

ColumbiaPhoenix

COU - PHX

COUPHX

Columbia Regional

Sat 2/21

11:15 am-7:18 pm

1 stop9h 03m

Phoenix Sky Harbor Intl

Sat 2/28

1:45 pm-9:33 pm

1 stop6h 48m

$248

SpringfieldPhoenix

SGF - PHX

SGFPHX

Springfield-Branson

Wed 12/10

4:08 pm-12:16 am

1 stop9h 08m

Phoenix Sky Harbor Intl

Sat 12/13

6:00 am-3:23 pm

1 stop8h 23m

$251

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Sat 2/21

11:25 am-7:18 pm

1 stop8h 53m

Phoenix Sky Harbor Intl

Sat 2/28

7:00 am-1:14 pm

1 stop5h 14m

$251

Cape GirardeauPhoenix

CGI - PHX

CGIPHX

Cape Girardeau

Mon 1/5

3:30 pm-4:43 pm

1 stop26h 13m

Phoenix Sky Harbor Intl

Wed 1/7

10:15 am-8:35 pm

1 stop9h 20m

$253

JoplinPhoenix

JLN - PHX

JLNPHX

Joplin

Fri 1/16

6:15 pm-10:59 pm

1 stop5h 44m

Phoenix Sky Harbor Intl

Sun 1/18

8:10 am-5:34 pm

1 stop8h 24m

$254

ColumbiaPhoenix

COU - PHX

COUPHX

Columbia Regional

Wed 1/7

8:09 am-6:06 pm

2 stops10h 57m

Phoenix Sky Harbor Intl

Sat 1/10

12:56 pm-8:33 pm

1 stop6h 37m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 53 results
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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.
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

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 $100). Flying from Missouri to Phoenix in March is currently the most expensive (average of $188). 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 November 26, 2025.

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 44% versus a flight at noon.

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 December 16, 2024.

Travelers seeking maximum savings on their Missouri to Phoenix flight should consider departing on Friday evenings when fares are most often at their lowest. Wednesday 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.

  • How long is the flight from Missouri to Phoenix?

    Delta, Southwest, and United Airlines can get you from Missouri to Phoenix in just under 3h. Your travel time can differ by up to 4h 44m. Airlines will cover a distance of 1040 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?

    Most travelers choose Lambert-St Louis - Phoenix Sky Harbor Intl, Kansas City - Phoenix Sky Harbor Intl or Springfield-Branson - Phoenix Sky Harbor Intl when deciding on the best route from Missouri to Phoenix.

  • What are the most reliable airlines from Missouri to Phoenix?

    No one likes to see their flight delayed. When booking a flight from Missouri to Phoenix consider choosing SkyWest Airlines (100%), American Airlines (82%) or Frontier (80%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Missouri to Phoenix?

    While on average a flight from Missouri to Phoenix is generally $411, our data shows the cheapest flight currently is $59. When looking at the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl), you can expect to pay $181 for that flight.

  • Can I find deals for flights from Missouri to Phoenix that include hotel bookings?

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

  • How can I find direct flights from Missouri to Phoenix?

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

  • Can I find deals for business class flights from Missouri to Phoenix?

    Yes. Cheapflights offers flight deals from Missouri to Phoenix 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?

    Currently, December is the cheapest month in which you can book a flight from Missouri to Phoenix (average of $100). Flying from Missouri to Phoenix in March is currently the most expensive (average of $188). 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

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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.
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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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$91Average$244FlexibilityNo cancel feeOn-time65%
FrontierCheapest$94Average$203FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$140Average$234FlexibilityNo cancel feeOn-time88%
DeltaCheapest$168Average$344FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$210Average$436FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$211Average$393FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$214Average$426FlexibilityNo cancel feeOn-time71%

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