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$66+ Cheap flights from Sky Harbor Intl (PHX) to St. Louis (STL)

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
Jul 31 — Aug 71
From?
To?
Wed 7/31
Wed 8/7
1 adult, Economy
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The best prices from Phoenix Sky Harbor Intl to Lambert-St Louis are usually found in June or May, booked 90 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Sky Harbor Intl to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to St. Louis (STL). 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 26, 2024.

Popular in

December

Cheapest in

June

Round-trip from

$140
(Trip.com)

One-way from

$66
(American Airlines)
High demand for flights, 20% potential price rise
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Best time to find cheap flights, 32% potential price drop
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From Phoenix Sky Harbor Intl to Lambert-St Louis
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One-way flight from Phoenix Sky Harbor Intl to Lambert-St Louis
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What is the cheapest day to fly round-trip from Phoenix Sky Harbor Intl Airport to St. Louis?

Travelers have found that booking a Tuesday departure is the best way to save up to 66% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

To save up to 116% on this flight, we recommend booking at least 49 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Phoenix Sky Harbor Intl Airport to St. Louis from $218 1-2 weeks out and tickets from $330 for flights departing within the next 72 hours.

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

June can be a great time to fly to St. Louis from Phoenix Sky Harbor Intl Airport with a flight ticket averaging about $334. Cheapflights users have found deals in the month of June for as cheap as $105. The most expensive prices can be found in the month of December.

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

A simple way to save on the total cost of your ticket is to fly from Phoenix Sky Harbor Intl Airport to St. Louis in the afternoon. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight at noon.

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

Find cheap flight options from Sky Harbor Intl to St. Louis specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 26, 2024.
Scroll through some of the best deals on flights from Phoenix to St. Louis in 2024. Check back regularly for other flight deals.
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2811:00 amPHX - STL
1 stop8h 22mFrontier
Tue 9/37:48 pmSTL - PHX
1 stop5h 19mFrontier
Deal found 7/25$142
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/246:00 amPHX - STL
1 stop10h 48mFrontier
Mon 8/269:24 pmSTL - PHX
1 stop27h 43mFrontier
Deal found 7/25$147
This Frontier deal was found by Cheapflights users on 7/25. 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.
Thu 8/298:33 amPHX - STL
1 stop8h 15mFrontier
Tue 9/37:48 pmSTL - PHX
1 stop5h 19mFrontier
Deal found 7/25$148
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1411:00 amPHX - STL
1 stop8h 22mFrontier
Tue 8/207:48 pmSTL - PHX
1 stop5h 19mFrontier
Deal found 7/25$149
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 8/16:55 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Wed 8/76:10 pmSTL - PHX
Nonstop3h 13mAmerican Airlines
Deal found 7/25$151
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1310:23 amPHX - STL
1 stop8h 13mFrontier
Wed 8/147:48 pmSTL - PHX
1 stop6h 31mFrontier
Deal found 7/25$154
This CheapOair deal was found by Cheapflights users on 7/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/147:29 pmPHX - STL
1 stop21h 19mFrontier
Sat 8/177:48 pmSTL - PHX
1 stop15h 57mFrontier
Deal found 7/25$161
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/257:40 amPHX - STL
1 stop9h 08mFrontier
Sat 8/317:48 pmSTL - PHX
1 stop15h 57mFrontier
Deal found 7/25$166
This Frontier deal was found by Cheapflights users on 7/25. 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 8/1610:41 amPHX - STL
1 stop6h 07mFrontier
Mon 8/199:24 pmSTL - PHX
1 stop10h 32mFrontier
Deal found 7/25$167

Sky Harbor Intl to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Sky Harbor Intl and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.
Scroll through some of the best deals on flights from Phoenix to St. Louis in 2024. Check back regularly for other flight deals.
This Trip.com deal was found by Cheapflights users on 7/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/184:14 pmPHX - STL
1 stop5h 35mFrontier
Sat 9/215:20 pmSTL - PHX
1 stop7h 04mFrontier
Deal found 7/25$140
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 10/296:50 pmPHX - STL
Nonstop2h 55mAmerican Airlines
Sat 11/28:11 amSTL - PHX
Nonstop3h 28mAmerican Airlines
Deal found 7/25$141
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2811:00 amPHX - STL
1 stop8h 22mFrontier
Tue 9/37:48 pmSTL - PHX
1 stop5h 19mFrontier
Deal found 7/25$142
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/58:33 amPHX - STL
1 stop12h 46mFrontier
Thu 9/125:23 pmSTL - PHX
1 stop17h 58mFrontier
Deal found 7/25$146
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/246:00 amPHX - STL
1 stop10h 48mFrontier
Mon 8/269:24 pmSTL - PHX
1 stop27h 43mFrontier
Deal found 7/25$147
This Frontier deal was found by Cheapflights users on 7/25. 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.
Thu 8/298:33 amPHX - STL
1 stop8h 15mFrontier
Tue 9/37:48 pmSTL - PHX
1 stop5h 19mFrontier
Deal found 7/25$148
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1411:00 amPHX - STL
1 stop8h 22mFrontier
Tue 8/207:48 pmSTL - PHX
1 stop5h 19mFrontier
Deal found 7/25$149
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 8/16:55 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Wed 8/76:10 pmSTL - PHX
Nonstop3h 13mAmerican Airlines
Deal found 7/25$151
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1310:23 amPHX - STL
1 stop8h 13mFrontier
Wed 8/147:48 pmSTL - PHX
1 stop6h 31mFrontier
Deal found 7/25$154

Sky Harbor Intl to St. Louis flights leaving soon

Find last-minute flight options from Sky Harbor Intl to St. Louis 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 2,752,877 searches. Data last updated July 26, 2024.
Book one of these great deals on flights from Phoenix to St. Louis. Users should examine the flight details to ensure there are no surprises.
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 8/16:55 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Wed 8/76:10 pmSTL - PHX
Nonstop3h 13mAmerican Airlines
Deal found 7/25$151
This FlightHub deal was found by Cheapflights users on 7/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/69:16 pmPHX - STL
1 stop15h 50mSpirit Airlines
Mon 8/124:02 pmSTL - PHX
1 stop7h 23mSpirit Airlines
Deal found 7/25$174
This Frontier deal was found by Cheapflights users on 7/25. 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 7/267:00 amPHX - STL
Nonstop3h 01mFrontier
Fri 8/212:46 pmSTL - PHX
Nonstop3h 09mFrontier
Deal found 7/25$178
This CheapOair deal was found by Cheapflights users on 7/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/69:16 pmPHX - STL
1 stop15h 50mMultiple Airlines
Tue 8/137:48 pmSTL - PHX
1 stop5h 19mMultiple Airlines
Deal found 7/25$180
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Mon 8/51:30 pmPHX - STL
1 stop6h 41mUnited Airlines
Sat 8/104:36 pmSTL - PHX
1 stop5h 54mUnited Airlines
Deal found 7/25$189
This FlightHub deal was found by Cheapflights users on 7/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/19:16 pmPHX - STL
1 stop15h 50mSpirit Airlines
Mon 8/54:02 pmSTL - PHX
1 stop7h 23mSpirit Airlines
Deal found 7/25$193
This Frontier deal was found by Cheapflights users on 7/25. 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 7/267:00 amPHX - STL
Nonstop3h 01mFrontier
Fri 8/910:32 pmSTL - PHX
1 stop11h 14mFrontier
Deal found 7/25$208
This KAYAK deal was found by Cheapflights users on 7/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/19:16 pmPHX - STL
1 stop15h 50mSpirit Airlines
Wed 8/74:02 pmSTL - PHX
2 stops20h 43mSpirit Airlines
Deal found 7/25$212
This Delta deal was found by Cheapflights users on 7/25. 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 8/75:02 pmPHX - STL
1 stop5h 54mDelta
Sat 8/103:28 pmSTL - PHX
1 stop6h 37mDelta
Deal found 7/25$216

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

Search for one-way flight options from Sky Harbor Intl to St. Louis. 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 2,752,877 searches. Data last updated July 26, 2024.
Take a look at some of the one-way flights we've detected from Phoenix to St. Louis. Users in need of a round-trip flight from Phoenix to St. Louis instead should update the search form at the top of page.
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Wed 9/412:26 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Deal found 7/25$66
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/266:00 amPHX - STL
1 stop8h 23mFrontier
Deal found 7/25$72
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.
Mon 8/2610:41 amPHX - STL
1 stop7h 43mFrontier
Deal found 7/24$73
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.
Tue 8/2710:23 amPHX - STL
1 stop8h 13mFrontier
Deal found 7/24$74
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.
Mon 9/234:02 pmPHX - STL
1 stop6h 34mFrontier
Deal found 7/24$75
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/267:00 pmPHX - STL
Nonstop2h 55mAmerican Airlines
Deal found 7/24$76
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/168:11 amPHX - STL
1 stop11h 54mFrontier
Deal found 7/25$78
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/248:00 amPHX - STL
1 stop8h 48mFrontier
Deal found 7/25$79
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.
Sat 9/281:05 pmPHX - STL
1 stop20h 49mFrontier
Deal found 7/24$80

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

Customize your flight search to find flights from Sky Harbor Intl to St. Louis 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 2,752,877 searches. Data last updated July 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$140 - $216

Route

Depart

Return

Price

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 9/18

1 stop5h 35m

Lambert-St Louis

Sat 9/21

1 stop7h 04m

$140

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 8/28

1 stop8h 22m

Lambert-St Louis

Tue 9/3

1 stop5h 19m

$142

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Thu 9/5

1 stop12h 46m

Lambert-St Louis

Thu 9/12

1 stop17h 58m

$146

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Thu 8/1

Nonstop3h 00m

Lambert-St Louis

Wed 8/7

Nonstop3h 13m

$151

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 8/6

1 stop15h 50m

Lambert-St Louis

Mon 8/12

1 stop7h 23m

$174

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Fri 8/2

Nonstop3h 00m

Lambert-St Louis

Sat 8/3

Nonstop3h 14m

$176

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 8/6

1 stop15h 50m

Lambert-St Louis

Tue 8/13

1 stop5h 19m

$180

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Mon 8/5

1 stop6h 41m

Lambert-St Louis

Sat 8/10

1 stop5h 54m

$189

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 8/7

1 stop5h 54m

Lambert-St Louis

Wed 8/14

1 stop7h 33m

$216

Flights are sorted by cheapest first

Deals found on 7/25

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to St. Louis. Price data was last updated on July 23, 2024.
To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to St. Louis, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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What is the cheapest day to fly from Phoenix Sky Harbor Intl Airport to St. Louis?

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis 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.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated July 26, 2024.
To help decide which airline to fly from Phoenix to St. Louis, see what other customers have to say about American Airlines, Delta and Frontier. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.2

Entertainment

7.2

Overall

8.1

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.

Alaska Airlines
8.1
Very good
9,365 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.2

Entertainment

7.2

Overall

8.1

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.

Delta
8.0
Very good
9,630 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.2

Entertainment

7.2

Overall

8.1

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.

United Airlines
7.4
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.2

Entertainment

7.2

Overall

8.1

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.

American Airlines
7.3
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.2

Entertainment

7.2

Overall

8.1

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.

Spirit Airlines
6.4
Okay
8,407 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.2

Entertainment

7.2

Overall

8.1

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 Sky Harbor Intl to St. Louis. 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 into for flights to St. Louis from Phoenix Sky Harbor Intl?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Phoenix Sky Harbor Intl. Booking flights from Phoenix Sky Harbor Intl to Lambert-St Louis (STL) should be relatively easy as there are 9 daily inbound flights from Phoenix Sky Harbor Intl from 5 different airlines.

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

    Yes, there are multiple flights from Phoenix Sky Harbor Intl Airport to St. Louis for under $200. The cheapest flight booked recently is on Frontier for just $140, but on average you can expect to pay $160.

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

    Cheapflights has at least 20 direct flights from Phoenix Sky Harbor Intl Airport to St. Louis under $200. A good price for a nonstop flight from Phoenix Sky Harbor Intl Airport to St. Louis is less than $292.

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

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

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

    Days when nonstop flights are available for this flight are: Sunday, Friday, Saturday.

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

    On average 4 flights depart from Phoenix Sky Harbor Intl Airport to St. Louis per day.
    Early Morning (Midnight to 6am) - 25% of flight departures
    Morning (6am - Noon) - 50% of flight departures
    Afternoon (Noon - 6pm) - 25% of flight departures

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

    Departing from Phoenix Sky Harbor Intl Airport to St. Louis will take you 3h. The distance between Phoenix Sky Harbor Intl Airport and St. Louis is about 1266 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $140, Frontier will fly you from Phoenix Sky Harbor Intl Airport to St. Louis and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Spirit Airlines - these airlines can fly you to your destination from $151 and $174, respectively. You may be able to fly from Phoenix Sky Harbor Intl Airport to St. Louis for 58% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Phoenix Sky Harbor Intl Airport to St. Louis are American Airlines ($66), Frontier ($72), and Spirit Airlines ($104).

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

    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 St. Louis on time: Envoy Air (95%), Southwest (79%), Alaska Airlines (69%).

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

    While on average a flight from Phoenix Sky Harbor Intl Airport to St. Louis is generally $185, our data shows the cheapest flight currently is $57. When looking at the most popular route, (Phoenix Sky Harbor Intl - Lambert-St Louis), you can expect to pay $151 for that flight.

  • What does PHX to STL mean?

    Great question - PHX to STL just means Phoenix Sky Harbor Intl Airport to Lambert-St Louis Airport. Now you’ll know what these unique codes when you look for flights!

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

    The amount of baggage you can bring on your Sky Harbor Intl to St. Louis 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 Sky Harbor Intl to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Sky Harbor Intl to St. Louis 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 Sky Harbor Intl to St. Louis that include hotel bookings?

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

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

    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 St. Louis.

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

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to St. Louis 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 Sky Harbor Intl to St. Louis that allow pets onboard?

    Many airlines flying from Sky Harbor Intl to St. Louis 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 Sky Harbor Intl to St. Louis?

    Yes, you can often find last-minute deals on Sky Harbor Intl to St. Louis 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 Phoenix Sky Harbor Intl Airport to St. Louis flight deals updated?

    The Phoenix Sky Harbor Intl Airport to St. Louis flight deals you see on this page were last updated on 7/25.

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

    Before booking your flight from Phoenix Sky Harbor Intl Airport to St. Louis check out the most popular airlines for this route: American Airlines, Delta or Frontier.

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

    Currently, September is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to St. Louis (average of $312). Flying from Phoenix Sky Harbor Intl Airport to St. Louis in March is currently the most expensive (average of $357). 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 St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Sky Harbor Intl to St. Louis

Discover the top 5 airlines that operate flights from Sky Harbor Intl to St. Louis. 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 2,752,877 searches. Data last updated July 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$160FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$131Average$378FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$140Average$223FlexibilityNo cancel feeOn-time65%
DeltaCheapest$216Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$292Average$509FlexibilityNo cancel feeOn-time69%
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Phoenix Sky Harbor Intl Airport to London Stansted Airport flights

Search flights from Sky Harbor Intl to St. Louis by cabin class

Find flights from Sky Harbor Intl to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Sky Harbor Intl to St. Louis

Find hourly flight availability from Sky Harbor Intl to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 26, 2024.
10%of flight departuresEarly morningMidnight to 6 am
20%of flight departuresMorning6 am to noon
35%of flight departuresAfternoonNoon to 6 pm
35%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Sky Harbor Intl to St. Louis

Explore weekly flight availability from Sky Harbor Intl to St. Louis. 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 July 26, 2024.
Sunday12daily flights
Monday9daily flights
Tuesday9daily flights
Wednesday9daily flights
Thursday9daily flights
Friday9daily flights
Saturday9daily flights

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