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$64+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$223
(FlightHub)

One-way from

$64
(Booking.com)

Popular in

March

Cheapest in

September

Average price

$364
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. 8% potential increase in price ($31 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 June 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 June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/127:29 pmSTL - PHX
1 stop14h 58mMultiple Airlines
Wed 7/1611:34 pmPHX - STL
1 stop8h 18mMultiple Airlines
Deal found 6/10$223
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/296:36 pmSTL - PHX
1 stop27h 45mSpirit Airlines
Thu 7/39:46 pmPHX - STL
1 stop17h 18mSpirit Airlines
Deal found 6/11$224
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/410:26 amSGF - PHX
1 stop6h 27mAmerican Airlines
Fri 7/1112:38 amPHX - SGF
1 stop6h 07mAmerican Airlines
Deal found 6/12$229
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/310:30 amMCI - PHX
1 stop14h 04mSpirit Airlines
Wed 8/611:34 pmPHX - MCI
1 stop8h 01mSpirit Airlines
Deal found 6/11$233
This CheapOair deal was found by Cheapflights users on 6/10. 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.
Sun 9/217:48 pmMCI - PHX
1 stop16h 26mFrontier
Sat 9/276:25 pmPHX - MCI
1 stop22h 38mFrontier
Deal found 6/10$238
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/167:20 pmMCI - PHX
1 stop5h 24mMultiple Airlines
Wed 7/2311:34 pmPHX - MCI
1 stop8h 01mMultiple Airlines
Deal found 6/10$241
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/203:54 pmSGF - PHX
1 stop7h 27mDelta
Sat 8/231:37 pmPHX - SGF
1 stop6h 28mDelta
Deal found 6/10$251
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/216:24 pmJLN - PHX
1 stop5h 36mUnited Airlines
Mon 7/289:51 amPHX - JLN
1 stop5h 08mUnited Airlines
Deal found 6/10$254
This Southwest deal was found by Cheapflights users on 6/11. 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.
Mon 8/185:35 pmMCI - PHX
Nonstop2h 50mSouthwest
Wed 8/205:40 pmPHX - MCI
Nonstop2h 30mSouthwest
Deal found 6/11$255
This Frontier deal was found by Cheapflights users on 6/11. 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 8/287:54 pmSTL - PHX
1 stop5h 30mFrontier
Mon 9/19:19 pmPHX - STL
1 stop9h 52mFrontier
Deal found 6/11$256
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/45:50 amMCI - PHX
Nonstop2h 49mAmerican Airlines
Thu 8/77:21 pmPHX - MCI
Nonstop2h 38mAmerican Airlines
Deal found 6/11$257
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:09 amSTL - PHX
Nonstop3h 30mAmerican Airlines
Thu 11/207:50 pmPHX - STL
Nonstop2h 59mAmerican Airlines
Deal found 6/11$257

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 June 12, 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

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Sat 7/12

7:29 pm-8:27 am

1 stop14h 58m

Phoenix Sky Harbor Intl

Wed 7/16

11:34 pm-9:52 am

1 stop8h 18m

$223

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Sun 6/29

6:36 pm-8:21 pm

1 stop27h 45m

Phoenix Sky Harbor Intl

Thu 7/3

9:46 pm-5:04 pm

1 stop17h 18m

$224

SpringfieldPhoenix

SGF - PHX

SGFPHX

Springfield-Branson

Fri 7/4

10:26 am-2:53 pm

1 stop6h 27m

Phoenix Sky Harbor Intl

Fri 7/11

12:38 am-8:45 am

1 stop6h 07m

$229

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Sun 8/3

10:30 am-10:34 pm

1 stop14h 04m

Phoenix Sky Harbor Intl

Wed 8/6

11:34 pm-9:35 am

1 stop8h 01m

$233

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Sun 9/21

7:48 pm-10:14 am

1 stop16h 26m

Phoenix Sky Harbor Intl

Sat 9/27

6:25 pm-7:03 pm

1 stop22h 38m

$238

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Wed 7/16

7:20 pm-10:44 pm

1 stop5h 24m

Phoenix Sky Harbor Intl

Wed 7/23

11:34 pm-9:35 am

1 stop8h 01m

$241

SpringfieldPhoenix

SGF - PHX

SGFPHX

Springfield-Branson

Wed 8/20

3:54 pm-9:21 pm

1 stop7h 27m

Phoenix Sky Harbor Intl

Sat 8/23

1:37 pm-10:05 pm

1 stop6h 28m

$251

JoplinPhoenix

JLN - PHX

JLNPHX

Joplin

Mon 7/21

6:24 pm-10:00 pm

1 stop5h 36m

Phoenix Sky Harbor Intl

Mon 7/28

9:51 am-4:59 pm

1 stop5h 08m

$254

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Mon 8/18

5:35 pm-6:25 pm

Nonstop2h 50m

Phoenix Sky Harbor Intl

Wed 8/20

5:40 pm-10:10 pm

Nonstop2h 30m

$255

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Thu 8/28

7:54 pm-11:24 pm

1 stop5h 30m

Phoenix Sky Harbor Intl

Mon 9/1

9:19 pm-9:11 am

1 stop9h 52m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 46 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, January is the cheapest month in which you can book a flight from Missouri to Phoenix (average of $258). Flying from Missouri to Phoenix in March is currently the most expensive (average of $337). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Phoenix as you normally would.

Rainfall in Phoenix by month

Plan your trip to Phoenix by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phoenix ranges from 0.0 - 1.1 inches per month. July is typically the wettest month, when rainfall can reach 1.1 in. June is typically the driest time to visit Phoenix when rainfall is around 0.0 in.

Temperature in Phoenix by month

Plan your trip to Phoenix by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phoenix, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 95.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated June 12, 2025.
To help decide which airline to fly from Missouri to Phoenix, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 Spirit Airlines ($64), Frontier ($78), and Delta ($126).

  • 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 SkyWest Airlines (91%), American Airlines (86%) or Alaska Airlines (86%) 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 $328, our data shows the cheapest flight currently is $143. When looking at the most popular route, (Kansas City - Phoenix Sky Harbor Intl), you can expect to pay $210 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, January is the cheapest month in which you can book a flight from Missouri to Phoenix (average of $258). Flying from Missouri to Phoenix in March is currently the most expensive (average of $337). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$178FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$112Average$238FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$142Average$203FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$152Average$433FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$203Average$468FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$324FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$271Average$411FlexibilityNo cancel feeOn-time63%

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