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$27+ Cheap flights from Phoenix to Missouri

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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheap flight deals from Phoenix to Missouri

Keep the following information in mind while searching for Phoenix to Missouri flight deals. Data was last updated November 6, 2025.

Round-trip from

$129
(Frontier)

One-way from

$27
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$337
From Phoenix to Missouri
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One-way flight from Phoenix to Missouri
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 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 Phoenix to Missouri

Cheapest flights from Phoenix to Missouri
Explore the most affordable flight options available from Phoenix to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Frontier deal was found by Cheapflights users on 11/5. 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 11/206:00 amPHX - MCI
Nonstop2h 31mFrontier
Mon 12/18:28 pmMCI - PHX
1 stop5h 04mFrontier
Deal found 11/5$129
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/317:00 amPHX - MCI
1 stop11h 50mFrontier
Thu 1/111:53 amMCI - PHX
Nonstop3h 02mFrontier
Deal found 11/5$133
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 11/232:30 pmPHX - MCI
Nonstop2h 31mFrontier
Mon 12/18:28 pmMCI - PHX
1 stop28h 21mFrontier
Deal found 11/6$142
This Frontier deal was found by Cheapflights users on 11/6. 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 11/2510:05 amPHX - MCI
1 stop8h 29mFrontier
Fri 11/288:28 pmMCI - PHX
1 stop5h 04mFrontier
Deal found 11/6$144
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/2710:31 pmPHX - MCI
1 stop20h 20mFrontier
Thu 1/111:53 amMCI - PHX
Nonstop3h 02mFrontier
Deal found 11/5$145
This CheapOair deal was found by Cheapflights users on 11/6. 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.
Tue 12/24:32 pmPHX - STL
1 stop16h 42mFrontier
Thu 12/41:16 pmSTL - PHX
1 stop20h 32mFrontier
Deal found 11/6$145
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/263:50 pmPHX - STL
Nonstop2h 57mFrontier
Mon 12/298:52 pmSTL - PHX
Nonstop3h 31mFrontier
Deal found 11/5$146
This Priceline deal was found by Cheapflights users on 11/3. 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.
Mon 11/177:25 amPHX - STL
Nonstop2h 59mFrontier
Sat 11/227:43 pmSTL - PHX
1 stop5h 49mFrontier
Deal found 11/3$147
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 11/2010:43 pmPHX - MCI
2 stops19h 50mFrontier
Thu 11/2710:26 amMCI - PHX
Nonstop3h 03mFrontier
Deal found 11/5$148
This Southwest deal was found by Cheapflights users on 11/6. 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 12/246:30 pmPHX - MCI
Nonstop2h 30mSouthwest
Thu 1/15:25 pmMCI - PHX
1 stop6h 00mSouthwest
Deal found 11/6$149
This Southwest deal was found by Cheapflights users on 11/5. 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 12/38:25 amPHX - STL
Nonstop2h 55mSouthwest
Wed 12/108:50 amSTL - PHX
Nonstop3h 30mSouthwest
Deal found 11/5$149
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/307:00 amPHX - MCI
1 stop11h 50mFrontier
Thu 1/111:53 amMCI - PHX
Nonstop3h 02mFrontier
Deal found 11/5$150

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix to Missouri 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 6, 2025.
Use the filters below to find and compare flights from Phoenix to Missouri that are best for you.

Fly from

Phoenix

Fly to

Missouri

Route

Depart

Return

Price

PhoenixKansas City

PHX - MCI

PHXMCI

Phoenix Sky Harbor Intl

Fri 12/5

7:00 am-1:53 pm

1 stop5h 53m

Kansas City

Sun 12/7

11:58 am-2:00 pm

Nonstop3h 02m

$166

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 12/9

1:30 pm-5:25 pm

Nonstop2h 55m

Lambert-St Louis

Fri 12/12

5:10 pm-7:35 pm

Nonstop3h 25m

$174

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Fri 12/5

6:30 pm-10:20 pm

Nonstop2h 50m

Lambert-St Louis

Sat 12/6

5:25 am-7:55 am

Nonstop3h 30m

$174

PhoenixKansas City

PHX - MCI

PHXMCI

Phoenix Sky Harbor Intl

Mon 11/24

6:27 pm-12:24 am

1 stop4h 57m

Kansas City

Thu 11/27

10:37 am-5:48 pm

1 stop8h 11m

$197

PhoenixKansas City

PHX - MCI

PHXMCI

Phoenix Sky Harbor Intl

Wed 12/31

7:18 am-2:49 pm

1 stop6h 31m

Kansas City

Thu 1/1

6:00 am-12:09 pm

1 stop7h 09m

$197

PhoenixKansas City

PHX - MCI

PHXMCI

Phoenix Sky Harbor Intl

Wed 2/18

7:10 am-10:35 am

Nonstop2h 25m

Kansas City

Wed 2/25

3:25 pm-8:15 pm

1 stop5h 50m

$218

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Thu 12/4

12:59 am-9:10 am

1 stop7h 11m

Lambert-St Louis

Sat 12/6

1:00 pm-5:49 pm

1 stop5h 49m

$223

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 12/3

12:05 pm-5:15 pm

1 stop4h 10m

Lambert-St Louis

Wed 12/10

8:50 am-11:20 am

Nonstop3h 30m

$225

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Thu 12/4

12:59 am-9:10 am

1 stop7h 11m

Lambert-St Louis

Mon 12/8

6:00 am-11:54 am

1 stop6h 54m

$229

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 11/19

6:30 pm-10:20 pm

Nonstop2h 50m

Lambert-St Louis

Thu 11/27

12:10 pm-2:30 pm

Nonstop3h 20m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 58 results
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Best time to book a flight from Phoenix to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Phoenix 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 Phoenix to Missouri

What is the cheapest month to book a flight from Phoenix to Missouri?

Currently, November is the cheapest month in which you can book a flight from Phoenix to Missouri (average of $106). Flying from Phoenix to Missouri in December is currently the most expensive (average of $142). 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 PHX to MO?

Find hourly flight availability from Phoenix to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 27% on flights from Phoenix to Missouri by exploring options for tickets in the evening.

What is the cheapest day to fly from Phoenix to Missouri?

Use this chart to determine the cheapest time to fly round-trip from Phoenix to Missouri. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Phoenix to Missouri flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Phoenix to Missouri

Explore weekly flight availability from Phoenix to Missouri. 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 November 6, 2025.

The most flights from PH1 to USMO are scheduled on a Thursday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated November 6, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Phoenix to Missouri to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,007 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Allegiant Air
7.2
Good
697 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,116 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Phoenix to Missouri. 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 Phoenix to Missouri?

    Departing from Phoenix to Missouri will take you 2h 55m. The distance from Phoenix to Missouri is about 1258 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Phoenix to Missouri one-way?

    $80 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $99 and $109, respectively.

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

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

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

    The top 3 most reliable airlines when flying from Phoenix to Missouri are SkyWest Airlines (89%), Southwest (83%) and Alaska Airlines (78%).

  • What are the cheapest flights from Phoenix to Missouri?

    On average you can expect to pay $262 for a flight from Phoenix to Missouri. The cheapest flight overall is $70 while the most popular route, (Phoenix Sky Harbor Intl - Kansas City) is currently priced at $148.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phoenix to Missouri 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 Phoenix to Missouri?

    Currently, November is the cheapest month in which you can book a flight from Phoenix to Missouri (average of $106). Flying from Phoenix to Missouri in December is currently the most expensive (average of $142). 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 Phoenix to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Phoenix to Missouri

Discover the top 7 airlines that operate flights from Phoenix to Missouri. 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 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$103Average$210FlexibilityNo cancel feeOn-time62%
DeltaCheapest$111Average$374FlexibilityNo cancel feeOn-timeN/A
Allegiant AirCheapest$118Average$193FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$196Average$391FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$198Average$418FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$209Average$353FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$221Average$417FlexibilityNo cancel feeOn-time71%

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