Missouri

$40+ Cheap flights from Sky Harbor Intl (PHX) 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
Mar 2 — Mar 91
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Cheap flight deals from Sky Harbor Intl to Missouri

Cheapest flights from Sky Harbor Intl to Missouri
Explore the most affordable flight options available from Sky Harbor Intl to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 31, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/30. 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 2/2712:21 pm
PHX
-
MCI
Nonstop2h 33m
Frontier
Sun 3/14:49 pm
MCI
-
PHX
Nonstop3h 16m
Frontier
Deal found 1/30$79
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Thu 2/262:27 pm
PHX
-
MCI
Nonstop2h 32m
Frontier
Mon 3/24:49 pm
MCI
-
PHX
Nonstop3h 16m
Frontier
Deal found 1/28$88
This Super.com deal was found by Cheapflights users on 1/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:27 pm
PHX
-
MCI
Nonstop2h 32m
Frontier
Sun 2/224:49 pm
MCI
-
PHX
Nonstop3h 16m
Frontier
Deal found 1/29$89
This Trip.com deal was found by Cheapflights users on 1/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2712:21 pm
PHX
-
MCI
Nonstop2h 33m
Frontier
Mon 3/24:49 pm
MCI
-
PHX
Nonstop3h 16m
Frontier
Deal found 1/31$91
This Super.com deal was found by Cheapflights users on 1/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:27 pm
PHX
-
MCI
Nonstop2h 32m
Frontier
Mon 2/234:49 pm
MCI
-
PHX
Nonstop3h 16m
Frontier
Deal found 1/28$97
This CheapOair deal was found by Cheapflights users on 1/29. 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 2/262:27 pm
PHX
-
MCI
Nonstop2h 32m
Frontier
Sat 2/288:41 pm
MCI
-
PHX
1 stop12h 31m
Frontier
Deal found 1/29$113
This Frontier deal was found by Cheapflights users on 1/29. 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 2/269:17 am
PHX
-
MCI
1 stop10h 12m
Frontier
Sun 3/14:49 pm
MCI
-
PHX
Nonstop3h 16m
Frontier
Deal found 1/29$114
This Super.com deal was found by Cheapflights users on 1/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:27 pm
PHX
-
MCI
Nonstop2h 32m
Frontier
Thu 3/56:54 pm
MCI
-
PHX
Nonstop3h 15m
Frontier
Deal found 1/29$117
This Frontier deal was found by Cheapflights users on 1/30. 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.
Wed 2/259:52 am
PHX
-
STL
1 stop5h 01m
Frontier
Sat 2/282:51 pm
STL
-
PHX
1 stop10h 08m
Frontier
Deal found 1/30$128
This Frontier deal was found by Cheapflights users on 1/29. 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 2/199:30 am
PHX
-
STL
1 stop10h 56m
Frontier
Mon 2/238:47 pm
STL
-
PHX
Nonstop3h 41m
Frontier
Deal found 1/29$133
This Expedia deal was found by Cheapflights users on 1/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/216:00 am
PHX
-
STL
1 stop6h 56m
Frontier
Mon 2/231:54 pm
STL
-
PHX
1 stop8h 35m
Frontier
Deal found 1/30$138
This Kiwi.com deal was found by Cheapflights users on 1/30. 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 3/46:00 am
PHX
-
STL
1 stop8h 53m
Frontier
Mon 3/98:12 pm
STL
-
PHX
1 stop19h 49m
Frontier
Deal found 1/30$141

Find flight deals from Sky Harbor Intl to Missouri

Keep the following information in mind while searching for Sky Harbor Intl to Missouri flight deals. Data was last updated January 31, 2026.

Round-trip from

$79
(Kiwi.com)

One-way from

$40
(Frontier)

Popular in

April

Cheapest in

December

Average price

$337

Good round-trip deal

$173 or less

Good one-way deal

$123 or less
From Phoenix Sky Harbor Intl to Missouri
One-way flight from Phoenix Sky Harbor Intl to Missouri
Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in January 2026
Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Missouri.
Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Missouri.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl 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 January 31, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Missouri that are best for you.

Fly from

Sky Harbor Intl

Fly to

Missouri

Route

Depart

Return

Price

PhoenixKansas City

PHX - MCI

PHXMCI

Phoenix Sky Harbor Intl

Thu 2/19

1:22 pm-7:33 pm

1 stop5h 11m

Kansas City

Sun 2/22

4:49 pm-7:05 pm

Nonstop3h 16m

$123

PhoenixKansas City

PHX - MCI

PHXMCI

Phoenix Sky Harbor Intl

Fri 2/27

12:21 pm-3:54 pm

Nonstop2h 33m

Kansas City

Mon 3/2

8:33 pm-12:41 am

1 stop5h 08m

$124

PhoenixKansas City

PHX - MCI

PHXMCI

Phoenix Sky Harbor Intl

Thu 2/26

10:51 pm-7:48 pm

1 stop19h 57m

Kansas City

Mon 3/2

8:33 pm-5:19 pm

1 stop21h 46m

$148

PhoenixKansas City

PHX - MCI

PHXMCI

Phoenix Sky Harbor Intl

Fri 2/20

10:16 am-7:46 pm

2 stops32h 30m

Kansas City

Sun 2/22

4:49 pm-7:05 pm

Nonstop3h 16m

$149

PhoenixKansas City

PHX - MCI

PHXMCI

Phoenix Sky Harbor Intl

Fri 2/27

12:21 pm-3:54 pm

Nonstop2h 33m

Kansas City

Fri 3/6

5:08 pm-9:14 pm

2 stops29h 06m

$156

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Thu 2/19

9:30 am-9:26 pm

1 stop10h 56m

Lambert-St Louis

Sat 2/21

2:51 pm-9:41 pm

1 stop7h 50m

$159

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 2/24

6:51 pm-3:53 pm

1 stop20h 02m

Lambert-St Louis

Sun 3/15

10:47 pm-12:28 am

Nonstop3h 41m

$166

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Sat 5/2

6:50 am-7:12 pm

1 stop10h 22m

Lambert-St Louis

Mon 5/4

8:12 pm-11:47 pm

1 stop5h 35m

$190

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 3/3

11:59 pm-10:27 pm

1 stop21h 28m

Lambert-St Louis

Thu 3/26

4:51 pm-11:44 pm

1 stop8h 53m

$200

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 2/18

8:04 pm-9:26 pm

1 stop24h 22m

Lambert-St Louis

Mon 2/23

10:11 pm-8:42 am

2 stops11h 31m

$212

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 60 results
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Best time to book a flight from Sky Harbor Intl to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Sky Harbor Intl 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 Sky Harbor Intl Airport to Missouri

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Missouri?

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Missouri (average of $97). Flying from Phoenix Sky Harbor Intl Airport to Missouri in June is currently the most expensive (average of $193). 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 Sky Harbor Intl 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 January 31, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 6% on flights from Phoenix Sky Harbor Intl Airport to Missouri by exploring options for tickets at noon.

What is the cheapest day to fly from Phoenix Sky Harbor Intl Airport to Missouri?

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Missouri. Price data was last updated on January 24, 2026.

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

Weekly flight availability from Phoenix Sky Harbor Intl Airport to Missouri

Explore weekly flight availability from Sky Harbor Intl 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 January 31, 2026.

The most flights from PHX to USMO are scheduled on a Friday (10 on average). You will have fewer flight options on Thursday, 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 January 31, 2026.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Phoenix Sky Harbor Intl Airport to Missouri by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl 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 Sky Harbor Intl Airport to Missouri?

    A quick flight from Phoenix Sky Harbor Intl Airport to Missouri can take about 5h 11m. Frontier provides one of the quickest options available for as low as $123. The distance from Phoenix Sky Harbor Intl Airport to Missouri is about 1040 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Missouri one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $31. Southwest flights start at $79 while deals on Spirit Airlines start at $94 one-way.

  • What are the most popular routes from Phoenix Sky Harbor Intl Airport to Missouri?

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Missouri?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Phoenix Sky Harbor Intl Airport to Missouri on time: SkyWest Airlines (100%), American Airlines (89%), Alaska Airlines (89%).

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Missouri?

    While on average a flight from Phoenix Sky Harbor Intl Airport to Missouri is generally $274, our data shows the cheapest flight currently is $69. When looking at the most popular route, (Phoenix Sky Harbor Intl - Kansas City), you can expect to pay $153 for that flight.

  • Can I find deals for flights from Sky Harbor Intl to Missouri that include hotel bookings?

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

  • How can I find direct flights from Sky Harbor Intl to Missouri?

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

  • Can I find deals for business class flights from Sky Harbor Intl to Missouri?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl 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 Sky Harbor Intl Airport to Missouri?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Missouri (average of $97). Flying from Phoenix Sky Harbor Intl Airport to Missouri in June is currently the most expensive (average of $193). 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.

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Alternative routes for Sky Harbor Intl to Missouri

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Sky Harbor Intl to Missouri

Discover the top 6 airlines that operate flights from Sky Harbor Intl 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 January 31, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$98Average$336FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$99Average$206FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$147Average$217FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$188Average$382FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$198Average$413FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$254Average$371FlexibilityNo cancel feeOn-time69%

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