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$88+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
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 July 28, 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$152
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$165
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$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$194
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.
Thu 8/207:58 pm
STL
-
PHX
1 stop5h 41m
Frontier
Mon 8/248:35 am
PHX
-
STL
1 stop8h 38m
Frontier
Deal found 7/26$206
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.
Thu 8/277:58 pm
STL
-
PHX
1 stop5h 41m
Frontier
Mon 8/318:35 am
PHX
-
STL
1 stop8h 38m
Frontier
Deal found 7/27$207
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$210
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 9/118:10 pm
STL
-
PHX
1 stop13h 50m
Frontier
Wed 9/169:15 am
PHX
-
STL
1 stop8h 02m
Frontier
Deal found 7/26$211
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Wed 9/308:10 pm
STL
-
PHX
1 stop13h 50m
Frontier
Thu 10/228:16 am
PHX
-
STL
1 stop8h 59m
Frontier
Deal found 7/25$212
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.
Sun 9/67:58 pm
STL
-
PHX
1 stop13h 42m
Frontier
Sat 9/129:15 am
PHX
-
STL
1 stop8h 02m
Frontier
Deal found 7/28$215
This Frontier deal was found by Cheapflights users on 7/24. 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.
Tue 9/222:17 pm
MCI
-
PHX
1 stop5h 23m
Frontier
Thu 9/246:40 am
PHX
-
MCI
1 stop4h 42m
Frontier
Deal found 7/24$258
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Tue 9/228:32 pm
MCI
-
PHX
2 stops19h 44m
Frontier
Tue 9/298:56 pm
PHX
-
MCI
1 stop20h 41m
Frontier
Deal found 7/24$259

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 July 28, 2026.

Round-trip from

$152
(Kiwi.com)

One-way from

$88
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$393
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 ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 28, 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

Price

Cheapest round-trip
Quickest round-trip

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

Wed 10/7

6:30 am-7:30 am

Nonstop3h 00m

Phoenix Sky Harbor Intl

Wed 10/14

1:45 pm-6:15 pm

Nonstop2h 30m

$267

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Wed 9/9

6:55 am-7:40 am

Nonstop2h 45m

Phoenix Sky Harbor Intl

Wed 9/23

10:50 am-3:25 pm

Nonstop2h 35m

$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

Sat 10/24

6:05 am-7:05 am

Nonstop3h 00m

Phoenix Sky Harbor Intl

Tue 10/27

6:00 am-12:30 pm

1 stop4h 30m

$273

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Mon 9/7

6:20 am-7:05 am

Nonstop2h 45m

Phoenix Sky Harbor Intl

Sat 9/12

5:25 am-2:30 pm

1 stop7h 05m

$277

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Wed 8/19

5:40 pm-8:55 pm

1 stop5h 15m

Phoenix Sky Harbor Intl

Wed 9/2

6:15 am-12:45 pm

1 stop4h 30m

$282

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Fri 9/4

7:11 pm-10:09 pm

1 stop4h 58m

Phoenix Sky Harbor Intl

Sun 9/6

6:00 am-12:37 pm

1 stop4h 37m

$308

JoplinPhoenix

JLN - PHX

JLNPHX

Joplin

Fri 9/4

1:53 pm-5:10 pm

1 stop5h 17m

Phoenix Sky Harbor Intl

Sun 9/6

4:49 pm-11:44 pm

1 stop4h 55m

$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

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $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 July 28, 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 38% 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 July 28, 2026.

The most flights from USMO to PH1 are scheduled on a Tuesday (9 on average). You will have fewer flight options on Saturday, 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?

Airfare is below average for this route at the moment.
Missouri to Phoenix 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?

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 July 25, 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. Tuesday mornings 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?

    Southwest, United Airlines, and Delta can get you from Missouri to Phoenix in just under 2h 45m. Your travel time can differ by up to 4h 23m. 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 ($40), Allegiant Air ($82), and American Airlines ($104).

  • 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 (90%), Alaska Airlines (84%) or American Airlines (83%) 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 $676, our data shows the cheapest flight currently is $148. When looking at the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl), you can expect to pay $206 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 $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.

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 July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$226FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$304FlexibilityNo cancel feeOn-timeN/A
Allegiant AirCheapest$134Average$250FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$148Average$369FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$199Average$422FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$212Average$407FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$292Average$380FlexibilityNo cancel feeOn-time62%

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