$33+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
Feb 5 — Feb 121
1 adult, Economy
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Find cheap flights from Sky Harbor Intl to Missouri with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap 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 6, 2026.
Round-trip from | $126 (Kiwi.com) |
|---|---|
One-way from | $33 (Kiwi.com) |
Popular in | April |
Cheapest in | December |
Average price | $362 |
Good round-trip deal | $204 or less |
Good one-way deal | $115 or less |
Find flight deals from Sky Harbor Intl to Missouri
Cheapest flights from Sky Harbor Intl to MissouriExplore 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 6, 2026.
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 6, 2026.
This Frontier deal was found by Cheapflights users on 1/6. 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.
Sat 2/286:00 amPHX - STL
1 stop6h 56mFrontier
Mon 3/28:47 pmSTL - PHX
Nonstop3h 41mFrontier
Deal found 1/6![Frontier logo]()
$120
This Priceline deal was found by Cheapflights users on 1/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/288:30 amPHX - STL
1 stop5h 16mFrontier
Sat 1/313:46 pmSTL - PHX
1 stop9h 07mFrontier
Deal found 1/5![Frontier logo]()
$128
This CheapOair deal was found by Cheapflights users on 1/6. 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 1/273:55 pmPHX - STL
1 stop21h 51mFrontier
Sat 1/313:46 pmSTL - PHX
1 stop21h 24mFrontier
Deal found 1/6![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Fri 2/2710:39 pmPHX - STL
1 stop14h 17mFrontier
Mon 3/28:47 pmSTL - PHX
Nonstop3h 41mFrontier
Deal found 1/6![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Wed 2/43:55 pmPHX - MCI
1 stop27h 03mFrontier
Mon 2/98:41 pmMCI - PHX
1 stop13h 01mFrontier
Deal found 1/6![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 1/4. 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 2/56:25 pmPHX - STL
1 stop23h 19mFrontier
Sat 2/73:46 pmSTL - PHX
1 stop17h 26mFrontier
Deal found 1/4![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Thu 2/56:25 pmPHX - STL
1 stop23h 19mFrontier
Sun 2/89:32 pmSTL - PHX
1 stop11h 48mFrontier
Deal found 1/6![Frontier logo]()
$135
This WAYA deal was found by Cheapflights users on 1/4. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/248:30 amPHX - STL
1 stop5h 16mFrontier
Sat 1/313:46 pmSTL - PHX
1 stop9h 07mFrontier
Deal found 1/4![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 2/129:17 amPHX - MCI
1 stop9h 16mFrontier
Sun 2/151:44 pmMCI - PHX
1 stop5h 47mFrontier
Deal found 1/5![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 1/5. 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.
Mon 2/27:00 amPHX - MCI
1 stop11h 51mFrontier
Mon 2/98:41 pmMCI - PHX
1 stop15h 26mFrontier
Deal found 1/5![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 1/4. 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 2/12:50 pmPHX - MCI
2 stops28h 01mFrontier
Sun 2/88:41 pmMCI - PHX
1 stop12h 31mFrontier
Deal found 1/4![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 2/48:30 amPHX - STL
1 stop5h 16mFrontier
Mon 2/91:40 pmSTL - PHX
1 stop8h 43mFrontier
Deal found 1/5![Frontier logo]()
$144
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 6, 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
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Tue 1/27
3:55 pm-2:46 pm
1 stop21h 51m
Lambert-St Louis
Sat 1/31
3:46 pm-8:20 am
2 stops17h 34m
$166
PhoenixKansas City
PHX - MCI
PHXMCI
Phoenix Sky Harbor Intl
Thu 1/22
6:00 am-10:31 am
2 stops27h 31m
Kansas City
Mon 1/26
8:41 pm-1:40 pm
1 stop17h 59m
$168
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Tue 2/3
3:55 pm-2:46 pm
1 stop21h 51m
Lambert-St Louis
Fri 2/6
1:03 pm-3:44 pm
Nonstop3h 41m
$169
PhoenixKansas City
PHX - MCI
PHXMCI
Phoenix Sky Harbor Intl
Thu 1/22
6:25 pm-7:51 pm
1 stop24h 26m
Kansas City
Mon 1/26
8:41 pm-1:40 pm
1 stop17h 59m
$171
PhoenixKansas City
PHX - MCI
PHXMCI
Phoenix Sky Harbor Intl
Fri 2/6
1:20 pm-7:51 pm
1 stop5h 31m
Kansas City
Tue 2/10
7:00 am-1:55 pm
1 stop7h 55m
$172
PhoenixKansas City
PHX - MCI
PHXMCI
Phoenix Sky Harbor Intl
Tue 2/17
6:51 pm-3:44 pm
1 stop19h 53m
Kansas City
Mon 2/23
4:49 pm-7:05 pm
Nonstop3h 16m
$180
PhoenixKansas City
PHX - MCI
PHXMCI
Phoenix Sky Harbor Intl
Thu 2/26
3:10 pm-10:30 am
2 stops18h 20m
Kansas City
Sun 3/1
1:44 pm-8:12 am
1 stop19h 28m
$185
PhoenixKansas City
PHX - MCI
PHXMCI
Phoenix Sky Harbor Intl
Thu 2/26
2:27 pm-5:59 pm
Nonstop2h 32m
Kansas City
Sun 3/1
4:49 pm-7:05 pm
Nonstop3h 16m
$190
PhoenixKansas City
PHX - MCI
PHXMCI
Phoenix Sky Harbor Intl
Thu 2/5
1:10 pm-7:58 pm
1 stop5h 48m
Kansas City
Thu 2/12
8:28 pm-3:27 pm
2 stops19h 59m
$204
PhoenixKansas City
PHX - MCI
PHXMCI
Phoenix Sky Harbor Intl
Thu 1/29
6:00 am-10:31 am
2 stops27h 31m
Kansas City
Sun 2/1
8:41 pm-8:12 am
1 stop12h 31m
$207
Showing 1-10 of 59 results
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, November is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Missouri (average of $101). 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 6, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 4% 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 3, 2026.
Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Missouri flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday afternoons 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 6, 2026.
The most flights from PHX to USMO 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 (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 6, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United 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.
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
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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 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$99 | Average$207 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$129 | Average$369 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$147 | Average$217 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$190 | Average$385 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$198 | Average$377 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$199 | Average$412 | FlexibilityNo cancel fee | On-time71% |