$54+ Cheap flights from St. Louis (STL) to Sky Harbor Intl (PHX)

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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Jul 29 — Aug 51

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The best prices from Lambert-St Louis to Phoenix Sky Harbor Intl are usually found in May or July, booked 83 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from St. Louis to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Sky Harbor Intl (PHX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 24, 2024.

Popular in

March

Cheapest in

May

Round-trip from

$139
(Trip.com)

One-way from

$54
(Frontier)
High demand for flights, 23% potential price rise
Best time to find cheap flights, 36% potential price drop
From Lambert-St Louis to Phoenix Sky Harbor Intl
One-way flight from Lambert-St Louis to Phoenix Sky Harbor Intl

What is the cheapest day to fly round-trip from St. Louis to Phoenix Sky Harbor Intl Airport?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 50% on the overall cost on flights from St. Louis to Phoenix Sky Harbor Intl Airport.

How far in advance should I book a flight from St. Louis to Phoenix Sky Harbor Intl Airport?

Users have found that booking a flight from St. Louis to Phoenix Sky Harbor Intl Airport at least 53 days early can save you up to 43% on average compared to booking a flight this week. If booking 53 days before your flight isn’t an option for you, users have found flights from St. Louis to Phoenix Sky Harbor Intl Airport for as little as $218 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $348 for flights departing within the next 3 days.

What is the cheapest month to fly from St. Louis to Phoenix Sky Harbor Intl Airport?

The best pricing can be found in the month of May. Prices to Phoenix Sky Harbor Intl Airport from St. Louis average $321. You can even find prices in May for less than $321, as users have found deals to Phoenix Sky Harbor Intl Airport from as low as $78. The month of March appears to be one of the more expensive times to travel to Phoenix Sky Harbor Intl Airport from St. Louis. Flying in the targeted month can save you up to 30%.

What is the cheapest time of day to fly from STL to PHX?

When flying from St. Louis to Phoenix Sky Harbor Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 56% versus a flight at noon.

Cheap St. Louis to Sky Harbor Intl flights in July & August 2024

Find cheap flight options from St. Louis to Sky Harbor Intl specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,723,176 searches. Prices were last updated on July 24, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Phoenix in 2024. More deals are always being added, so be sure to check back regularly.
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Tue 8/67:28 pmPHX - STL
1 stop11h 57mFrontier
Deal found 7/23$129
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Wed 8/712:16 pmPHX - STL
1 stop7h 15mFrontier
Deal found 7/24$135
This Trip.com deal was found by Cheapflights users on 7/23. 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.
Tue 8/207:48 pmSTL - PHX
1 stop5h 19mFrontier
Tue 8/276:00 amPHX - STL
1 stop12h 36mFrontier
Deal found 7/23$139
This Frontier deal was found by Cheapflights users on 7/23. 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.
Mon 7/2912:41 pmSTL - PHX
Nonstop3h 09mFrontier
Fri 8/26:45 amPHX - STL
Nonstop3h 01mFrontier
Deal found 7/23$140
This CheapOair deal was found by Cheapflights users on 7/22. 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.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Mon 8/57:29 pmPHX - STL
1 stop24h 29mFrontier
Deal found 7/22$141
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:46 pmSTL - PHX
Nonstop3h 09mFrontier
Thu 8/87:24 pmPHX - STL
1 stop12h 01mFrontier
Deal found 7/24$145
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1912:37 pmSTL - PHX
1 stop11h 01mFrontier
Thu 9/1210:27 pmPHX - STL
1 stop20h 33mFrontier
Deal found 7/23$147
This Frontier deal was found by Cheapflights users on 7/23. 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 7/2410:59 pmSTL - PHX
Nonstop3h 09mFrontier
Wed 7/315:08 pmPHX - STL
Nonstop3h 01mFrontier
Deal found 7/23$148
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/227:48 pmSTL - PHX
1 stop6h 36mFrontier
Thu 8/299:37 pmPHX - STL
1 stop19h 11mFrontier
Deal found 7/23$150

St. Louis to Sky Harbor Intl 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Sky Harbor Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,723,176 searches. Data last updated July 24, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Phoenix in 2024. More deals are always being added, so be sure to check back regularly.
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Tue 8/67:28 pmPHX - STL
1 stop11h 57mFrontier
Deal found 7/23$129
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Wed 8/712:16 pmPHX - STL
1 stop7h 15mFrontier
Deal found 7/24$135
This Trip.com deal was found by Cheapflights users on 7/23. 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.
Tue 8/207:48 pmSTL - PHX
1 stop5h 19mFrontier
Tue 8/276:00 amPHX - STL
1 stop12h 36mFrontier
Deal found 7/23$139
This Frontier deal was found by Cheapflights users on 7/23. 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.
Mon 7/2912:41 pmSTL - PHX
Nonstop3h 09mFrontier
Fri 8/26:45 amPHX - STL
Nonstop3h 01mFrontier
Deal found 7/23$140
This CheapOair deal was found by Cheapflights users on 7/22. 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.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Mon 8/57:29 pmPHX - STL
1 stop24h 29mFrontier
Deal found 7/22$141
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:46 pmSTL - PHX
Nonstop3h 09mFrontier
Thu 8/87:24 pmPHX - STL
1 stop12h 01mFrontier
Deal found 7/24$145
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/55:20 pmSTL - PHX
1 stop5h 59mFrontier
Thu 9/126:00 amPHX - STL
1 stop8h 23mFrontier
Deal found 7/24$146
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1912:37 pmSTL - PHX
1 stop11h 01mFrontier
Thu 9/1210:27 pmPHX - STL
1 stop20h 33mFrontier
Deal found 7/23$147
This Frontier deal was found by Cheapflights users on 7/23. 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 7/2410:59 pmSTL - PHX
Nonstop3h 09mFrontier
Wed 7/315:08 pmPHX - STL
Nonstop3h 01mFrontier
Deal found 7/23$148

St. Louis to Sky Harbor Intl flights leaving soon

Find last-minute flight options from St. Louis to Sky Harbor Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,723,176 searches. Data last updated July 24, 2024.
Book one of these great deals on flights from St. Louis to Phoenix. Users should examine the flight details to ensure there are no surprises.
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Tue 8/67:28 pmPHX - STL
1 stop11h 57mFrontier
Deal found 7/23$129
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Wed 8/712:16 pmPHX - STL
1 stop7h 15mFrontier
Deal found 7/24$135
This Frontier deal was found by Cheapflights users on 7/23. 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.
Mon 7/2912:41 pmSTL - PHX
Nonstop3h 09mFrontier
Fri 8/26:45 amPHX - STL
Nonstop3h 01mFrontier
Deal found 7/23$140
This CheapOair deal was found by Cheapflights users on 7/22. 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.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Mon 8/57:29 pmPHX - STL
1 stop24h 29mFrontier
Deal found 7/22$141
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:46 pmSTL - PHX
Nonstop3h 09mFrontier
Thu 8/87:24 pmPHX - STL
1 stop12h 01mFrontier
Deal found 7/24$145
This American Airlines deal was found by Cheapflights users on 7/22. 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 8/56:09 pmSTL - PHX
Nonstop3h 11mAmerican Airlines
Tue 8/133:45 pmPHX - STL
Nonstop3h 01mAmerican Airlines
Deal found 7/22$151
This Frontier deal was found by Cheapflights users on 7/23. 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 8/610:32 pmSTL - PHX
1 stop12h 09mFrontier
Thu 8/87:24 pmPHX - STL
1 stop12h 01mFrontier
Deal found 7/23$153
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:46 pmSTL - PHX
Nonstop3h 09mFrontier
Sun 8/117:45 amPHX - STL
1 stop23h 40mFrontier
Deal found 7/24$156
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Fri 8/94:02 pmPHX - STL
1 stop15h 23mFrontier
Deal found 7/24$158

One-way flights to Sky Harbor Intl from St. Louis

Search for one-way flight options from St. Louis to Sky Harbor Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,723,176 searches. Data last updated July 24, 2024.
Users traveling one-way from St. Louis to Phoenix can select one of these great deals. Users in need of a round-trip flight from St. Louis to Phoenix instead should update the search form at the top of page.
This Frontier deal was found by Cheapflights users on 7/23. 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 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Deal found 7/23$54
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3110:59 pmSTL - PHX
Nonstop3h 09mFrontier
Deal found 7/24$59
This Trip.com deal was found by Cheapflights users on 7/23. 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.
Tue 9/245:30 pmSTL - PHX
1 stop8h 23mFrontier
Deal found 7/23$61
This Trip.com deal was found by Cheapflights users on 7/23. 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.
Mon 7/2912:41 pmSTL - PHX
Nonstop3h 09mFrontier
Deal found 7/23$62
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:46 pmSTL - PHX
Nonstop3h 09mFrontier
Deal found 7/24$64
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Sun 9/17:39 amSTL - PHX
Nonstop3h 14mAmerican Airlines
Deal found 7/23$66
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/37:48 pmSTL - PHX
1 stop5h 19mFrontier
Deal found 7/23$74
This Cheapflightsfares deal was found by Cheapflights users on 7/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/74:02 pmSTL - PHX
1 stop6h 24mSpirit Airlines
Deal found 7/23$75
This American Airlines deal was found by Cheapflights users on 7/23. 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 8/36:11 pmSTL - PHX
Nonstop3h 09mAmerican Airlines
Deal found 7/23$76

Find flights from St. Louis to Sky Harbor Intl within your budget

Customize your flight search to find flights from St. Louis to Sky Harbor Intl 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 2,723,176 searches. Data last updated July 24, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$139 - $216

Route

Depart

Return

Price

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Tue 8/20

1 stop5h 19m

Phoenix Sky Harbor Intl

Tue 8/27

1 stop12h 36m

$139

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Mon 8/26

Nonstop3h 14m

Phoenix Sky Harbor Intl

Sun 9/1

Nonstop3h 03m

$141

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Thu 9/5

1 stop5h 59m

Phoenix Sky Harbor Intl

Thu 9/12

1 stop8h 23m

$146

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Mon 8/19

1 stop11h 01m

Phoenix Sky Harbor Intl

Thu 9/12

1 stop20h 33m

$147

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Mon 8/19

Nonstop3h 14m

Phoenix Sky Harbor Intl

Mon 8/26

Nonstop3h 01m

$151

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Mon 8/5

1 stop7h 23m

Phoenix Sky Harbor Intl

Wed 8/7

1 stop7h 15m

$164

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Sun 9/15

1 stop23h 43m

Phoenix Sky Harbor Intl

Wed 9/18

1 stop22h 33m

$179

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Tue 11/12

1 stop6h 07m

Phoenix Sky Harbor Intl

Mon 11/18

1 stop9h 26m

$184

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Sat 8/3

1 stop8h 15m

Phoenix Sky Harbor Intl

Mon 8/5

1 stop5h 54m

$216

Flights are sorted by cheapest first

Deals found on 7/23

How far ahead should I book a flight from St. Louis to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Sky Harbor Intl. Price data was last updated on July 23, 2024.
Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Phoenix Sky Harbor Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

What is the cheapest day to fly from St. Louis to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Sky Harbor Intl. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Phoenix Sky Harbor Intl Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from St. Louis 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.

Temperature and rainfall in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average temperature and rainfall totals by month.

PHX

Temperature

55.4 - 95 °F

If weather is an important factor for your trip to Phoenix Sky Harbor Intl Airport, 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 Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. 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 Sky Harbor Intl. Reviews last updated July 24, 2024.
Get a feel of what it's like to fly with Frontier, American Airlines and Spirit Airlines from St. Louis to Phoenix by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,360 reviews

Entertainment

7.2

Comfort

7.9

Crew

8.6

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

8.1
Very good
9,360 reviews
8.1
Very good
9,360 reviews

Entertainment

7.2

Comfort

7.9

Crew

8.6

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

8.0
Very good
9,630 reviews
8.1
Very good
9,360 reviews

Entertainment

7.2

Comfort

7.9

Crew

8.6

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

7.4
Good
10,000 reviews
8.1
Very good
9,360 reviews

Entertainment

7.2

Comfort

7.9

Crew

8.6

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

7.3
Good
10,000 reviews
8.1
Very good
9,360 reviews

Entertainment

7.2

Comfort

7.9

Crew

8.6

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

7.1
Good
512 reviews
8.1
Very good
9,360 reviews

Entertainment

7.2

Comfort

7.9

Crew

8.6

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Sky Harbor Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from St. Louis to Phoenix Sky Harbor Intl?

    For a flight from St. Louis to Phoenix Sky Harbor Intl, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 10 outbound flights to Phoenix Sky Harbor Intl per day. 5 airlines have flights to Phoenix Sky Harbor Intl from Lambert-St Louis on a regular basis.

  • Can I find flights from St. Louis to Phoenix Sky Harbor Intl Airport for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Phoenix Sky Harbor Intl Airport for under $200. The cheapest flight booked recently is on Frontier for just $139, but on average you can expect to pay $159.

  • Are there nonstop flights from St. Louis to Phoenix Sky Harbor Intl Airport for under $200 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Phoenix Sky Harbor Intl Airport under $200. A good price for a nonstop flight from St. Louis to Phoenix Sky Harbor Intl Airport is less than $256.

  • Are there last-minute flights available from St. Louis to Phoenix Sky Harbor Intl Airport for under $200?

    There are currently 20+ open flights from St. Louis to Phoenix Sky Harbor Intl Airport within the next 7 days for less than $200.

  • What days are nonstop flights available from St. Louis to Phoenix Sky Harbor Intl Airport?

    Nonstop flights can be found on the following days: Wednesday, Thursday, Friday.

  • How many flights depart from St. Louis to Phoenix Sky Harbor Intl Airport on average per day?

    On average 4 flights depart from St. Louis to Phoenix Sky Harbor Intl Airport per day.
    Afternoon (Noon - 6pm) - 25% of flight departures
    Evening (6pm - Midnight) - 75% of flight departures

  • How long is the flight from St. Louis to Phoenix Sky Harbor Intl Airport?

    A quick flight from St. Louis to Phoenix Sky Harbor Intl Airport can take about 3h 14m. Frontier provides one of the quickest options available for as low as $139. There are 1266 mi between St. Louis and Phoenix Sky Harbor Intl Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Phoenix Sky Harbor Intl Airport round-trip?

    Flying on Frontier is currently your cheapest option to Phoenix Sky Harbor Intl Airport, with prices starting at $139. Additional round-trip tickets that might be worth considering are offered by American Airlines and Spirit Airlines, with the lowest prices starting at $141 and $179, respectively. Frontier is priced at 56% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $54 on Frontier. Other airlines that offer cheap prices include American Airlines from $66 and Spirit Airlines from $75 one-way.

  • What are the most reliable airlines from St. Louis to Phoenix Sky Harbor Intl Airport?

    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 St. Louis to Phoenix Sky Harbor Intl Airport on time: Envoy Air (95%), American Airlines (88%), Alaska Airlines (85%).

  • What are the cheapest flights from St. Louis to Phoenix Sky Harbor Intl Airport?

    On average you can expect to pay $241 for a flight from St. Louis to Phoenix Sky Harbor Intl Airport. The cheapest flight overall is $60 while the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl) is currently priced at $162.

  • What does STL to PHX mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Phoenix Sky Harbor Intl Airport flight would often be abbreviated as a STL to PHX flight.

  • Can I find deals for flights from St. Louis to Sky Harbor Intl that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Sky Harbor Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Sky Harbor Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Sky Harbor Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from St. Louis to Sky Harbor Intl?

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

  • Can I find deals for business class flights from St. Louis to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from St. Louis to Sky Harbor Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Sky Harbor Intl that allow pets onboard?

    Many airlines flying from St. Louis to Sky Harbor Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Sky Harbor Intl?

    Yes, you can often find last-minute deals on St. Louis to Sky Harbor Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Phoenix Sky Harbor Intl Airport flight deals updated?

    The St. Louis to Phoenix Sky Harbor Intl Airport flight deals you see on this page were last updated on 7/24.

  • What are the most popular airlines that fly from St. Louis to Phoenix Sky Harbor Intl Airport?

  • What is the cheapest month to book a flight from St. Louis to Phoenix Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Phoenix Sky Harbor Intl Airport (average of $251). Flying from St. Louis to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of $322). 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 St. Louis to Sky Harbor Intl
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