St. Louis

$80+ Cheap flights from Tempe, AZ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
Jun 3 — Jun 101
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Cheapflights Tip: The best prices from Tempe to Lambert-St Louis are usually found in January or October, booked 25 days in advance, depart on a Friday or Saturday and return on a Wednesday

Cheap flight deals from Tempe to St. Louis

Cheapest flights from Tempe to St. Louis
Explore the most affordable flight options available from Tempe to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:53 pm
PHX
-
STL
1 stop22h 30m
Frontier
Tue 8/188:08 pm
STL
-
PHX
1 stop21h 16m
Frontier
Deal found 4/29$180
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:53 pm
PHX
-
STL
1 stop22h 30m
Frontier
Fri 6/127:03 pm
STL
-
PHX
1 stop6h 01m
Frontier
Deal found 4/30$192
This Orbitz deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:27 pm
PHX
-
STL
1 stop17h 39m
Frontier
Sat 6/137:38 pm
STL
-
PHX
1 stop5h 51m
Frontier
Deal found 4/29$204
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1611:21 am
PHX
-
STL
1 stop6h 02m
Frontier
Mon 6/225:06 pm
STL
-
PHX
1 stop7h 14m
Frontier
Deal found 4/30$208
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3011:50 am
PHX
-
STL
1 stop5h 41m
Frontier
Sat 6/66:30 pm
STL
-
PHX
1 stop6h 54m
Frontier
Deal found 4/30$210
This Orbitz deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:40 am
PHX
-
STL
1 stop10h 31m
Frontier
Sun 5/319:06 pm
STL
-
PHX
1 stop28h 18m
Frontier
Deal found 4/29$215
This Trip.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:40 am
PHX
-
STL
1 stop10h 43m
Frontier
Sun 5/1712:36 pm
STL
-
PHX
1 stop22h 11m
Frontier
Deal found 4/30$216
This Trip.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:40 am
PHX
-
STL
1 stop8h 26m
Frontier
Sun 5/318:08 pm
STL
-
PHX
1 stop13h 36m
Frontier
Deal found 4/29$220
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1710:27 pm
PHX
-
STL
1 stop19h 56m
Frontier
Wed 5/206:51 pm
STL
-
PHX
1 stop18h 32m
Frontier
Deal found 4/29$221
This Priceline deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:40 am
PHX
-
STL
1 stop8h 26m
Frontier
Tue 5/196:51 pm
STL
-
PHX
1 stop6h 33m
Frontier
Deal found 4/29$225

Find flight deals from Tempe to St. Louis

Keep the following information in mind while searching for Tempe to St. Louis flight deals. Data was last updated May 4, 2026.

Round-trip from

$192
(Kiwi.com)

One-way from

$80
(CheapOair)

Popular in

April

Cheapest in

January

Average price

$384
From Tempe to Lambert-St Louis
One-way flight from Tempe to Lambert-St Louis
Highest demand for flights based on searches. 14% potential increase in price ($62 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Tempe 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 2,558,603 searches. Data last updated May 4, 2026.
Use the filters below to find and compare flights from Tempe to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 6/16

10:50 am-5:45 pm

1 stop4h 55m

Lambert-St Louis

Sat 6/20

8:45 pm-9:55 pm

Nonstop3h 10m

$381

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Sat 5/23

4:55 pm-9:45 pm

Nonstop2h 50m

Lambert-St Louis

Tue 5/26

8:45 pm-10:10 pm

Nonstop3h 25m

$396

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 6/2

9:08 am-9:21 pm

2 stops10h 13m

Lambert-St Louis

Wed 6/3

5:10 am-9:00 am

1 stop5h 50m

$402
Quickest round-trip

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Sat 6/13

8:05 pm-1:00 am

Nonstop2h 55m

Lambert-St Louis

Thu 6/18

9:45 pm-10:55 pm

Nonstop3h 10m

$405

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Fri 7/3

8:55 pm-1:50 am

Nonstop2h 55m

Lambert-St Louis

Sun 7/5

7:35 pm-12:10 am

1 stop6h 35m

$415

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Fri 6/19

5:00 am-9:50 am

Nonstop2h 50m

Lambert-St Louis

Sun 6/21

6:00 am-9:00 am

1 stop5h 00m

$425

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Fri 5/22

7:40 pm-12:30 am

Nonstop2h 50m

Lambert-St Louis

Sun 5/24

3:25 pm-7:20 pm

1 stop5h 55m

$450

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 5/13

12:45 pm-5:40 pm

Nonstop2h 55m

Lambert-St Louis

Tue 5/19

5:30 am-6:55 am

Nonstop3h 25m

$455

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Sat 5/16

6:40 am-11:30 am

Nonstop2h 50m

Lambert-St Louis

Tue 5/19

2:05 pm-3:30 pm

Nonstop3h 25m

$455

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 5/19

6:20 pm-11:15 pm

Nonstop2h 55m

Lambert-St Louis

Fri 5/22

9:40 pm-11:05 pm

Nonstop3h 25m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/3

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Tempe to St. Louis

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

What is the cheapest time of day to fly from TM9 to STL?

Find hourly flight availability from Tempe 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 May 4, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 14% on flights from Tempe to St. Louis by exploring options for tickets at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Tempe to St. Louis. Price data was last updated on May 2, 2026.

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

Weekly flight availability from Tempe to St. Louis

Explore weekly flight availability from Tempe 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 May 4, 2026.

The most flights from TM9 to STL are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Tempe to St. Louis?

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 May 4, 2026.
See what other customers who have flown with Southwest,Delta, andAmerican Airlines from Tempe to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.0

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Food

7.0

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Food

7.0

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Food

7.0

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Food

7.0

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Tempe 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 Tempe?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from Tempe to St. Louis. You should not have trouble finding flights to Lambert-St Louis from Tempe; the airport handles an average of 7 inbound flights from Tempe per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the St. Louis airport from Tempe. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

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

    Airlines like Southwest and United Airlines fly from Tempe to St. Louis in about 4h 55m. The time it takes to get you to your destination can typically vary by up to 5h 18m. There are 1258 mi between Tempe and St. Louis. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $70. Users have also found prices from $128 and $130 on United Airlines and Southwest, respectively.

  • What are the most reliable airlines from Tempe 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 Tempe to St. Louis on time: Envoy Air (92%), American Airlines (76%), Alaska Airlines (76%).

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

    On average you can expect to pay $337 for a flight from Tempe to St. Louis. The cheapest flight overall is $163 while the most popular route, (Phoenix Sky Harbor Intl - Lambert-St Louis) is currently priced at $283.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Tempe 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

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Top 4 airlines flying from Tempe to St. Louis

Discover the top 4 airlines that operate flights from Tempe 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 2,558,603 searches. Data last updated May 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$207FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$227Average$381FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$367FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$257Average$396FlexibilityNo cancel feeOn-time63%

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