Tempe

$63+ Cheap flights from St. Louis (STL) to Tempe, AZ

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
ene. 11 — ene. 181
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Cheapflights Tip: The best prices from Lambert-St Louis to Tempe are usually found in November or October, booked 69 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from St. Louis to Tempe

Cheapest flights from St. Louis to Tempe
Explore the most affordable flight options available from St. Louis to Tempe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/198:42 pmSTL - PHX
Nonstop3h 31mFrontier
lun. 1/194:15 pmPHX - STL
Nonstop2h 53mFrontier
Deal found 12/10$164
This Frontier deal was found by Cheapflights users on 12/10. 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.
lun. 12/228:52 pmSTL - PHX
Nonstop3h 31mFrontier
mié. 1/148:45 amPHX - STL
1 stop5h 03mFrontier
Deal found 12/10$186
This Kiwi.com deal was found by Cheapflights users on 12/10. 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.
lun. 12/228:52 pmSTL - PHX
Nonstop3h 31mFrontier
jue. 1/291:20 pmPHX - STL
1 stop28h 24mFrontier
Deal found 12/10$191
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
vie. 12/198:42 pmSTL - PHX
Nonstop3h 31mFrontier
mié. 12/249:58 amPHX - STL
1 stop5h 26mFrontier
Deal found 12/11$204
This Frontier deal was found by Cheapflights users on 12/11. 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.
mar. 12/2310:10 pmSTL - PHX
1 stop11h 38mFrontier
sáb. 1/318:30 amPHX - STL
1 stop5h 16mFrontier
Deal found 12/11$206
This Booking.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/228:52 pmSTL - PHX
Nonstop3h 31mFrontier
lun. 12/2910:26 pmPHX - STL
1 stop21h 59mFrontier
Deal found 12/10$207
This Frontier deal was found by Cheapflights users on 12/10. 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.
dom. 12/2110:10 pmSTL - PHX
1 stop11h 38mFrontier
vie. 12/2610:31 pmPHX - STL
1 stop10h 31mFrontier
Deal found 12/10$208
This Expedia deal was found by Cheapflights users on 12/11. 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.
lun. 12/228:52 pmSTL - PHX
Nonstop3h 31mFrontier
jue. 1/110:31 pmPHX - STL
1 stop10h 31mFrontier
Deal found 12/11$210
This Super.com deal was found by Cheapflights users on 12/10. 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.
vie. 12/198:42 pmSTL - PHX
Nonstop3h 31mFrontier
lun. 1/54:10 pmPHX - STL
Nonstop2h 57mFrontier
Deal found 12/10$211
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
vie. 12/1212:07 pmSTL - PHX
Nonstop3h 31mFrontier
lun. 12/157:25 amPHX - STL
Nonstop2h 57mFrontier
Deal found 12/11$220

Find flight deals from St. Louis to Tempe

Keep the following information in mind while searching for St. Louis to Tempe flight deals. Data was last updated diciembre 12, 2025.

Round-trip from

$142
(Kiwi.com)

One-way from

$63
(Trip.com)

Popular in

March

Cheapest in

November

Average price

$317
From Lambert-St Louis to Tempe
One-way flight from Lambert-St Louis to Tempe
Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Tempe 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 diciembre 12, 2025.
Use the filters below to find and compare flights from St. Louis to Tempe that are best for you.

Fly from

St. Louis

Fly to

Tempe

Route

Depart

Return

Price

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

sáb. 2/21

7:41 am-2:30 pm

1 stop7h 49m

Phoenix Sky Harbor Intl

sáb. 2/28

7:00 am-1:14 pm

1 stop5h 14m

$257

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mié. 2/11

5:55 am-8:35 am

Nonstop3h 40m

Phoenix Sky Harbor Intl

sáb. 2/14

6:55 pm-10:45 pm

Nonstop2h 50m

$297

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mié. 1/21

2:15 pm-4:45 pm

Nonstop3h 30m

Phoenix Sky Harbor Intl

mié. 1/28

10:35 am-2:25 pm

Nonstop2h 50m

$297

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mar. 1/20

4:35 pm-10:14 pm

1 stop6h 39m

Phoenix Sky Harbor Intl

mar. 1/27

11:35 am-8:58 pm

2 stops8h 23m

$302

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mar. 1/20

2:50 pm-11:59 pm

1 stop10h 09m

Phoenix Sky Harbor Intl

sáb. 1/31

7:00 am-1:54 pm

1 stop29h 54m

$312

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mar. 1/20

2:50 pm-11:59 pm

1 stop10h 09m

Phoenix Sky Harbor Intl

vie. 1/30

1:16 pm-10:46 pm

1 stop8h 30m

$312

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

vie. 1/16

8:45 pm-11:15 pm

Nonstop3h 30m

Phoenix Sky Harbor Intl

dom. 1/18

6:55 am-10:45 am

Nonstop2h 50m

$317

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

lun. 2/2

7:55 pm-10:25 pm

Nonstop3h 30m

Phoenix Sky Harbor Intl

sáb. 2/7

8:55 am-12:45 pm

Nonstop2h 50m

$317

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mié. 1/7

2:15 pm-4:45 pm

Nonstop3h 30m

Phoenix Sky Harbor Intl

vie. 1/9

6:55 am-10:45 am

Nonstop2h 50m

$317

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

vie. 3/6

5:15 am-7:50 am

Nonstop3h 35m

Phoenix Sky Harbor Intl

mar. 3/10

6:30 pm-11:20 pm

Nonstop2h 50m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 23 results
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Best time to book a flight from St. Louis to Tempe

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

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Tempe

How far ahead should I book a flight from St. Louis to Tempe?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Tempe. Price data was last updated on December 5, 2025.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Tempe. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from St. Louis to Tempe?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Tempe (average of $107). Flying from St. Louis to Tempe in June is currently the most expensive (average of $235). 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 STL to TM9?

Find hourly flight availability from St. Louis to Tempe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 12, 2025.

One of the essential ways to save on airfare from St. Louis to Tempe is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 57% on airfare.

What is the cheapest day to fly from St. Louis to Tempe?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Tempe. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Tempe flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from St. Louis to Tempe

Explore weekly flight availability from St. Louis to Tempe. 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 diciembre 12, 2025.

The most flights from STL to TM9 are scheduled on a Thursday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Tempe

Get insights into the airlines that provide service to Tempe. 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 Tempe. Reviews last updated diciembre 12, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from St. Louis to Tempe. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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 St. Louis to Tempe. 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 Tempe?

    For a flight from St. Louis to Tempe, 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 8 outbound flights to Tempe per day. 6 airlines have flights to Tempe from Lambert-St Louis on a regular basis.

  • How long is the flight from St. Louis to Tempe?

    Departing from St. Louis to Tempe will take you 3h 40m. The distance from St. Louis to Tempe is about 1258 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from St. Louis to Tempe one-way?

    The cheapest airlines for a one-way flight from St. Louis to Tempe are Frontier ($55), Southwest ($143), and American Airlines ($148).

  • What are the most reliable airlines from St. Louis to Tempe?

    Consider Frontier (86%), American Airlines (70%) or Alaska Airlines (70%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Tempe.

  • What are the cheapest flights from St. Louis to Tempe?

    While on average a flight from St. Louis to Tempe is generally $415, our data shows the cheapest flight currently is $67. When looking at the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl), you can expect to pay $160 for that flight.

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

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

  • How can I find direct flights from St. Louis to Tempe?

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

  • Can I find deals for business class flights from St. Louis to Tempe?

    Yes. Cheapflights offers flight deals from St. Louis to Tempe 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 St. Louis to Tempe?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Tempe (average of $107). Flying from St. Louis to Tempe in June is currently the most expensive (average of $235). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 6 airlines flying from St. Louis to Tempe

Discover the top 6 airlines that operate flights from St. Louis to Tempe. 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$94Average$200FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$158Average$200FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$210Average$383FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$225Average$408FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$230Average$392FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$357FlexibilityNo cancel feeOn-timeN/A

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