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$28+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Jan 4 — Jan 111
Sun 1/4
Sun 1/11
1 adult, Economy
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Cheap 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 December 5, 2025.

This CheapOair deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair 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 12/2110:31 pmPHX - MCI
1 stop20h 19mFrontier
Deal found 12/3$140
This CheapOair deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:53 amMCI - PHX
Nonstop3h 02mFrontier
Mon 12/2910:31 pmPHX - MCI
1 stop20h 19mFrontier
Deal found 12/4$153
This CheapOair deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:53 amMCI - PHX
Nonstop3h 02mFrontier
Sun 12/2811:59 amPHX - MCI
Nonstop2h 38mFrontier
Deal found 12/3$155
This Mytrip deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:10 pmSTL - PHX
1 stop24h 06mFrontier
Sun 2/19:55 pmPHX - STL
1 stop21h 55mFrontier
Deal found 12/2$156
This Frontier deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:09 pmMCI - PHX
1 stop5h 35mFrontier
Thu 12/187:20 amPHX - MCI
Nonstop2h 38mFrontier
Deal found 12/4$169
This Frontier deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:48 pmMCI - PHX
1 stop7h 33mFrontier
Thu 12/187:20 amPHX - MCI
Nonstop2h 38mFrontier
Deal found 12/3$174
This Priceline deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:32 pmMCI - PHX
Nonstop3h 02mFrontier
Mon 1/269:22 amPHX - MCI
1 stop9h 29mFrontier
Deal found 12/3$178
This Priceline deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:45 pmMCI - PHX
1 stop4h 44mFrontier
Thu 12/257:20 amPHX - MCI
Nonstop2h 38mFrontier
Deal found 12/4$182
This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:43 pmSTL - PHX
1 stop13h 23mFrontier
Wed 12/1710:05 amPHX - STL
2 stops29h 19mFrontier
Deal found 12/3$183
This CheapOair deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:43 pmSTL - PHX
1 stop6h 01mFrontier
Tue 12/2310:26 pmPHX - STL
1 stop16h 58mFrontier
Deal found 12/4$184
This Frontier deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:10 pmSTL - PHX
1 stop11h 38mFrontier
Fri 12/263:50 pmPHX - STL
Nonstop2h 57mFrontier
Deal found 12/2$185
This Frontier deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:10 pmSTL - PHX
1 stop11h 38mFrontier
Fri 12/263:50 pmPHX - STL
Nonstop2h 57mFrontier
Deal found 12/3$186

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 December 5, 2025.

Round-trip from

$110
(Super.com)

One-way from

$28
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$337
From Missouri to Phoenix
Search Deals
One-way flight from Missouri to Phoenix
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 5, 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

Sat 2/21

2:08 pm-4:10 pm

Nonstop3h 02m

Phoenix Sky Harbor Intl

Wed 2/25

9:52 am-1:28 pm

Nonstop2h 36m

$154

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Mon 1/26

8:41 pm-1:40 pm

1 stop17h 59m

Phoenix Sky Harbor Intl

Fri 1/30

9:22 am-7:51 pm

1 stop9h 29m

$154

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Thu 1/8

8:23 pm-8:06 am

1 stop12h 43m

Phoenix Sky Harbor Intl

Sun 1/11

9:22 pm-7:41 pm

1 stop21h 19m

$156

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 1/7

9:00 am-2:25 pm

2 stops6h 25m

Phoenix Sky Harbor Intl

Wed 1/14

1:20 pm-5:10 pm

Nonstop2h 50m

$179

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Fri 1/23

8:41 pm-12:40 am

1 stop4h 59m

Phoenix Sky Harbor Intl

Sun 1/25

9:50 pm-7:51 pm

1 stop21h 01m

$191

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Thu 1/8

8:23 pm-8:06 am

1 stop12h 43m

Phoenix Sky Harbor Intl

Sun 1/11

7:25 am-11:33 pm

2 stops15h 08m

$201

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Thu 1/22

10:01 pm-8:20 am

1 stop11h 19m

Phoenix Sky Harbor Intl

Sun 1/25

9:50 pm-12:50 pm

1 stop14h 00m

$207

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Fri 2/27

3:48 pm-11:29 pm

1 stop8h 41m

Phoenix Sky Harbor Intl

Tue 3/3

6:15 pm-11:59 pm

1 stop4h 44m

$217

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Mon 1/26

2:25 pm-4:28 pm

Nonstop3h 03m

Phoenix Sky Harbor Intl

Fri 1/30

1:24 pm-4:58 pm

Nonstop2h 34m

$217

SpringfieldPhoenix

SGF - PHX

SGFPHX

Springfield-Branson

Sat 1/17

5:03 pm-9:54 pm

1 stop5h 51m

Phoenix Sky Harbor Intl

Tue 1/20

6:45 am-12:46 pm

1 stop5h 01m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 60 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 December 5, 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.

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 December 5, 2025.

The most flights from USMO to PH1 are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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?

    American Airlines, Frontier, and Southwest can get you from Missouri to Phoenix in just under 3h 02m. Your travel time can differ by up to 14h 57m. 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 cheapest airlines to fly from Missouri to Phoenix one-way?

    The cheapest airlines for a one-way flight from Missouri to Phoenix are Frontier ($54), Allegiant Air ($73), and Spirit Airlines ($82).

  • What are the most popular routes from Missouri to Phoenix?

    Most travelers choose Kansas City - Phoenix Sky Harbor Intl, Lambert-St Louis - 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 Frontier (86%), American Airlines (70%) or Alaska Airlines (70%) 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 $416, our data shows the cheapest flight currently is $59. When looking at the most popular route, (Kansas City - Phoenix Sky Harbor Intl), you can expect to pay $124 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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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 December 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$91Average$244FlexibilityNo cancel feeOn-time65%
FrontierCheapest$94Average$201FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$140Average$199FlexibilityNo cancel feeOn-time88%
DeltaCheapest$168Average$342FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$207Average$393FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$210Average$439FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$214Average$425FlexibilityNo cancel feeOn-time71%

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