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$100+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 March 26, 2025.

Round-trip from

$230
(Priceline)

One-way from

$100
(American Airlines)

Popular in

February

Cheapest in

January

Average price

$290
From Missouri to Phoenix
Search Deals
One-way flight from Missouri to Phoenix
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This Priceline deal was found by Cheapflights users on 3/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/88:51 pmMCI - PHX
1 stop5h 04mMultiple Airlines
Fri 5/99:19 amPHX - MCI
1 stop7h 44mMultiple Airlines
Deal found 3/25$230
This Mytrip deal was found by Cheapflights users on 3/25. 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.
Thu 5/14:57 pmMCI - PHX
2 stops22h 31mSpirit Airlines
Sun 5/42:34 pmPHX - MCI
1 stop20h 25mSpirit Airlines
Deal found 3/25$236
This Frontier deal was found by Cheapflights users on 3/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/312:19 pmMCI - PHX
1 stop5h 35mFrontier
Sat 4/126:00 amPHX - MCI
1 stop11h 37mFrontier
Deal found 3/26$238
This Frontier deal was found by Cheapflights users on 3/25. 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 4/116:51 pmSTL - PHX
1 stop7h 06mFrontier
Sun 4/139:00 pmPHX - STL
1 stop10h 06mFrontier
Deal found 3/25$278
This Booking.com deal was found by Cheapflights users on 3/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/66:35 amSTL - PHX
1 stop12h 54mMultiple Airlines
Sun 4/611:59 pmPHX - STL
1 stop21h 47mMultiple Airlines
Deal found 3/24$279
This American Airlines deal was found by Cheapflights users on 3/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:30 pmMCI - PHX
Nonstop2h 56mAmerican Airlines
Mon 5/57:15 pmPHX - MCI
Nonstop2h 30mAmerican Airlines
Deal found 3/26$307
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/91:40 pmSGF - PHX
1 stop5h 35mUnited Airlines
Tue 5/132:30 pmPHX - SGF
1 stop5h 45mUnited Airlines
Deal found 3/25$318
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/52:19 pmSGF - PHX
1 stop4h 53mAmerican Airlines
Tue 4/81:09 amPHX - SGF
1 stop8h 36mAmerican Airlines
Deal found 3/25$320
This Southwest deal was found by Cheapflights users on 3/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1611:25 amMCI - PHX
2 stops5h 50mSouthwest
Tue 4/226:30 pmPHX - MCI
Nonstop2h 30mSouthwest
Deal found 3/25$322
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/163:59 pmMCI - PHX
1 stop7h 27mDelta
Tue 4/225:19 pmPHX - MCI
1 stop4h 55mDelta
Deal found 3/25$327
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:22 pmJLN - PHX
1 stop5h 38mUnited Airlines
Tue 5/1312:50 pmPHX - JLN
1 stop8h 55mUnited Airlines
Deal found 3/25$334
This Delta deal was found by Cheapflights users on 3/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:00 amSTL - PHX
1 stop8h 42mDelta
Sat 5/101:25 pmPHX - STL
1 stop6h 07mDelta
Deal found 3/26$339

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 March 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

Thu 5/8

8:51 pm-11:55 pm

1 stop5h 04m

Phoenix Sky Harbor Intl

Fri 5/9

9:19 am-7:03 pm

1 stop7h 44m

$230

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Thu 5/1

4:57 pm-1:28 pm

2 stops22h 31m

Phoenix Sky Harbor Intl

Sun 5/4

2:34 pm-12:59 pm

1 stop20h 25m

$236

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Sat 4/5

8:37 pm-11:57 pm

1 stop5h 20m

Phoenix Sky Harbor Intl

Sat 4/12

8:00 am-7:37 pm

1 stop9h 37m

$238

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Fri 4/11

6:51 pm-11:57 pm

1 stop7h 06m

Phoenix Sky Harbor Intl

Sun 4/13

9:00 pm-9:06 am

1 stop10h 06m

$278

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Sun 4/6

6:35 am-5:29 pm

1 stop12h 54m

Phoenix Sky Harbor Intl

Sun 4/6

11:59 pm-11:46 pm

1 stop21h 47m

$279

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Thu 5/1

6:30 pm-7:26 pm

Nonstop2h 56m

Phoenix Sky Harbor Intl

Mon 5/5

7:15 pm-11:45 pm

Nonstop2h 30m

$307

SpringfieldPhoenix

SGF - PHX

SGFPHX

Springfield-Branson

Fri 5/9

1:40 pm-5:15 pm

1 stop5h 35m

Phoenix Sky Harbor Intl

Tue 5/13

2:30 pm-10:15 pm

1 stop5h 45m

$318

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Wed 4/16

11:25 am-3:15 pm

2 stops5h 50m

Phoenix Sky Harbor Intl

Tue 4/22

6:30 pm-11:00 pm

Nonstop2h 30m

$322

Kansas CityPhoenix

MCI - PHX

MCIPHX

Kansas City

Wed 4/16

3:59 pm-9:26 pm

1 stop7h 27m

Phoenix Sky Harbor Intl

Tue 4/22

5:19 pm-12:14 am

1 stop4h 55m

$327

SpringfieldPhoenix

SGF - PHX

SGFPHX

Springfield-Branson

Tue 4/29

7:10 pm-11:29 pm

1 stop6h 19m

Phoenix Sky Harbor Intl

Thu 5/1

3:15 pm-11:48 pm

1 stop6h 33m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 44 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 March 26, 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 March 26, 2025.
To help decide which airline to fly from Missouri to Phoenix, see what other customers have to say about Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,789 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 American Airlines ($100), Frontier ($109), and Sun Country Air ($123).

  • 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 Southwest (86%), American Airlines (84%) or Alaska Airlines (84%) 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 $709, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl), you can expect to pay $255 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$153FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$112Average$237FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$131Average$445FlexibilityNo cancel feeOn-time71%
Allegiant AirCheapest$142Average$208FlexibilityNo cancel feeOn-time88%
DeltaCheapest$197Average$314FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$226Average$441FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$277Average$414FlexibilityNo cancel feeOn-time63%
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