$60+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
Apr 4 — Apr 111
Round-trip
1 adult, Economy
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Find cheap flights from Tempe to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Tempe to Lambert-St Louis are usually found in January or December, booked 25 days in advance, depart on a Friday or Tuesday and return on a Wednesday
Cheap flight deals from Tempe to St. Louis
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Best
Last-minute
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Cheapest flights from Tempe to St. LouisExplore 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 March 5, 2026.
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 March 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:52 am
PHX
- STL
1 stop8h 20m
Frontier
Mon 5/118:12 pm
STL
- PHX
1 stop17h 34m
Frontier
Deal found 3/3![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 am
PHX
- STL
1 stop10h 31m
Frontier
Sat 4/188:17 pm
STL
- PHX
1 stop13h 19m
Frontier
Deal found 3/2![Frontier logo]()
$151
This Booking.com deal was found by Cheapflights users on 3/3. 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.
Sat 4/117:25 am
PHX
- STL
Nonstop2h 56m
Frontier
Mon 4/138:19 pm
STL
- PHX
1 stop5h 23m
Frontier
Deal found 3/3![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:51 pm
PHX
- STL
1 stop22h 30m
Frontier
Fri 4/178:06 pm
STL
- PHX
1 stop14h 32m
Frontier
Deal found 3/4![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sat 4/189:52 am
PHX
- STL
1 stop7h 40m
Frontier
Mon 4/203:21 pm
STL
- PHX
1 stop20h 45m
Frontier
Deal found 3/3![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 am
PHX
- STL
1 stop10h 31m
Frontier
Mon 4/203:21 pm
STL
- PHX
1 stop20h 45m
Frontier
Deal found 3/3![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sat 4/189:52 am
PHX
- STL
1 stop7h 40m
Frontier
Tue 4/214:59 pm
STL
- PHX
1 stop8h 19m
Frontier
Deal found 3/3![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:24 pm
PHX
- STL
1 stop20h 08m
Frontier
Mon 4/203:21 pm
STL
- PHX
1 stop6h 02m
Frontier
Deal found 3/3![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 am
PHX
- STL
1 stop10h 31m
Frontier
Tue 4/214:59 pm
STL
- PHX
1 stop8h 19m
Frontier
Deal found 3/3![Frontier logo]()
$168
This CheapOair deal was found by Cheapflights users on 3/2. 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.
Sat 4/47:25 am
PHX
- STL
Nonstop2h 56m
Frontier
Wed 4/88:16 pm
STL
- PHX
1 stop5h 26m
Frontier
Deal found 3/2![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:24 pm
PHX
- STL
1 stop20h 08m
Frontier
Mon 4/278:17 pm
STL
- PHX
1 stop5h 25m
Frontier
Deal found 3/1![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:50 am
PHX
- STL
1 stop10h 31m
Frontier
Mon 5/48:17 pm
STL
- PHX
1 stop17h 29m
Frontier
Deal found 3/4![Frontier logo]()
$175
Best flights from Tempe to St. LouisDiscover carefully curated flight deals from Tempe to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 5, 2026.
Discover carefully curated flight deals from Tempe to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 5, 2026.
This Southwest deal was found by Cheapflights users on 2/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:35 am
PHX
- STL
Nonstop2h 50m
Southwest
Tue 5/265:30 am
STL
- PHX
Nonstop3h 25m
Southwest
Deal found 2/28![Southwest logo]()
$315
This Southwest deal was found by Cheapflights users on 2/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/313:00 pm
PHX
- STL
Nonstop2h 50m
Southwest
Wed 4/17:25 am
STL
- PHX
Nonstop3h 30m
Southwest
Deal found 2/28![Southwest logo]()
$315
This Southwest deal was found by Cheapflights users on 3/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/35:00 am
PHX
- STL
Nonstop2h 50m
Southwest
Tue 4/75:35 pm
STL
- PHX
Nonstop3h 25m
Southwest
Deal found 3/1![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 3/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:40 pm
PHX
- STL
Nonstop2h 50m
Southwest
Tue 5/55:30 am
STL
- PHX
Nonstop3h 25m
Southwest
Deal found 3/1![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 2/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2811:00 am
PHX
- STL
1 stop5h 55m
Southwest
Sat 4/48:25 am
STL
- PHX
2 stops7h 25m
Southwest
Deal found 2/28![Southwest logo]()
$339
This Southwest deal was found by Cheapflights users on 3/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:40 pm
PHX
- STL
Nonstop2h 50m
Southwest
Sun 4/127:35 pm
STL
- PHX
Nonstop3h 25m
Southwest
Deal found 3/3![Southwest logo]()
$355
This Southwest deal was found by Cheapflights users on 2/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:00 am
PHX
- STL
Nonstop2h 50m
Southwest
Mon 4/65:15 am
STL
- PHX
Nonstop3h 35m
Southwest
Deal found 2/28![Southwest logo]()
$355
This Southwest deal was found by Cheapflights users on 3/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:05 am
PHX
- STL
Nonstop2h 50m
Southwest
Mon 8/242:20 pm
STL
- PHX
1 stop4h 30m
Southwest
Deal found 3/2![Southwest logo]()
$361
This Southwest deal was found by Cheapflights users on 3/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:35 pm
PHX
- STL
1 stop5h 05m
Southwest
Mon 4/276:05 am
STL
- PHX
Nonstop3h 25m
Southwest
Deal found 3/3![Southwest logo]()
$365
This Southwest deal was found by Cheapflights users on 3/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/133:35 pm
PHX
- STL
1 stop5h 05m
Southwest
Fri 4/179:40 pm
STL
- PHX
Nonstop3h 25m
Southwest
Deal found 3/3![Southwest logo]()
$365
This Southwest deal was found by Cheapflights users on 3/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:10 pm
PHX
- STL
Nonstop2h 55m
Southwest
Sun 5/35:35 am
STL
- PHX
Nonstop3h 25m
Southwest
Deal found 3/3![Southwest logo]()
$375
Last-minute flights from Tempe to St. LouisDiscover last-minute flight deals from Tempe to St. Louis. Data last updated March 5, 2026 and is based on user searches.
Discover last-minute flight deals from Tempe to St. Louis. Data last updated March 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 3/1712:54 pm
PHX
- STL
1 stop18h 55m
Frontier
Thu 3/1910:47 pm
STL
- PHX
Nonstop3h 41m
Frontier
Deal found 3/3![Frontier logo]()
$176
This CheapOair deal was found by Cheapflights users on 3/2. 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.
Sat 4/47:25 am
PHX
- STL
Nonstop2h 56m
Frontier
Wed 4/88:16 pm
STL
- PHX
1 stop5h 26m
Frontier
Deal found 3/2![Frontier logo]()
$169
This Booking.com deal was found by Cheapflights users on 3/3. 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.
Sat 4/117:25 am
PHX
- STL
Nonstop2h 56m
Frontier
Mon 4/138:19 pm
STL
- PHX
1 stop5h 23m
Frontier
Deal found 3/3![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:51 pm
PHX
- STL
1 stop22h 30m
Frontier
Fri 4/178:06 pm
STL
- PHX
1 stop14h 32m
Frontier
Deal found 3/4![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 am
PHX
- STL
1 stop10h 31m
Frontier
Sat 4/188:17 pm
STL
- PHX
1 stop13h 19m
Frontier
Deal found 3/2![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 am
PHX
- STL
1 stop10h 31m
Frontier
Mon 4/203:21 pm
STL
- PHX
1 stop20h 45m
Frontier
Deal found 3/3![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 am
PHX
- STL
1 stop10h 31m
Frontier
Tue 4/214:59 pm
STL
- PHX
1 stop8h 19m
Frontier
Deal found 3/3![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:24 pm
PHX
- STL
1 stop20h 08m
Frontier
Mon 4/203:21 pm
STL
- PHX
1 stop6h 02m
Frontier
Deal found 3/3![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sat 4/189:52 am
PHX
- STL
1 stop7h 40m
Frontier
Mon 4/203:21 pm
STL
- PHX
1 stop20h 45m
Frontier
Deal found 3/3![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sat 4/189:52 am
PHX
- STL
1 stop7h 40m
Frontier
Tue 4/214:59 pm
STL
- PHX
1 stop8h 19m
Frontier
Deal found 3/3![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:24 pm
PHX
- STL
1 stop20h 08m
Frontier
Mon 4/278:17 pm
STL
- PHX
1 stop5h 25m
Frontier
Deal found 3/1![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:50 am
PHX
- STL
1 stop10h 31m
Frontier
Mon 5/48:17 pm
STL
- PHX
1 stop17h 29m
Frontier
Deal found 3/4![Frontier logo]()
$175
One-way flights from Tempe to St. LouisSearch for one-way flight options from Tempe to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 5, 2026.
Search for one-way flight options from Tempe to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 5, 2026.
This Trip.com deal was found by Cheapflights users on 3/1. 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.
Sat 4/256:50 am
PHX
- STL
1 stop10h 42m
Frontier
Deal found 3/1![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 2/28. 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.
Sat 4/189:52 am
PHX
- STL
1 stop7h 40m
Frontier
Deal found 2/28![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:24 pm
PHX
- STL
1 stop20h 08m
Frontier
Deal found 3/4![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 3/246:45 pm
PHX
- STL
1 stop13h 04m
Frontier
Deal found 3/3![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 3/316:45 pm
PHX
- STL
1 stop13h 03m
Frontier
Deal found 3/3![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 3/3. 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 4/47:25 am
PHX
- STL
Nonstop2h 56m
Frontier
Deal found 3/3![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:51 pm
PHX
- STL
1 stop22h 30m
Frontier
Deal found 3/1![Frontier logo]()
$82
This Super.com deal was found by Cheapflights users on 3/3. 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.
Thu 3/195:09 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 3/3![Frontier logo]()
$83
This Booking.com deal was found by Cheapflights users on 3/3. 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.
Thu 3/125:09 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 3/3![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:24 pm
PHX
- STL
1 stop19h 57m
Frontier
Deal found 3/4![Frontier logo]()
$88
This Trip.com deal was found by Cheapflights users on 3/3. 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 3/176:50 am
PHX
- STL
1 stop24h 59m
Frontier
Deal found 3/3![Frontier logo]()
$89
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 March 5, 2026.
Round-trip from | $145 (Kiwi.com) |
|---|---|
One-way from | $60 (Trip.com) |
Popular in | April |
Cheapest in | January |
Average price | $396 |
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 March 5, 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
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Wed 5/20
5:35 am-10:25 am
Nonstop2h 50m
Lambert-St Louis
Tue 5/26
5:30 am-6:55 am
Nonstop3h 25m
$315
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Tue 3/31
3:00 pm-7:50 pm
Nonstop2h 50m
Lambert-St Louis
Wed 4/1
7:25 am-8:55 am
Nonstop3h 30m
$315
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Fri 4/3
5:00 am-9:50 am
Nonstop2h 50m
Lambert-St Louis
Tue 4/7
5:35 pm-7:00 pm
Nonstop3h 25m
$335
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Thu 4/30
7:40 pm-12:30 am
Nonstop2h 50m
Lambert-St Louis
Tue 5/5
5:30 am-6:55 am
Nonstop3h 25m
$335
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Sat 3/28
11:00 am-6:55 pm
1 stop5h 55m
Lambert-St Louis
Sat 4/4
8:25 am-1:50 pm
2 stops7h 25m
$339
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Fri 4/10
7:40 pm-12:30 am
Nonstop2h 50m
Lambert-St Louis
Sun 4/12
7:35 pm-9:00 pm
Nonstop3h 25m
$355
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Mon 3/30
5:00 am-9:50 am
Nonstop2h 50m
Lambert-St Louis
Mon 4/6
5:15 am-6:50 am
Nonstop3h 35m
$355
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Fri 8/14
5:05 am-9:55 am
Nonstop2h 50m
Lambert-St Louis
Mon 8/24
2:20 pm-4:50 pm
1 stop4h 30m
$361
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Fri 4/24
3:35 pm-10:40 pm
1 stop5h 05m
Lambert-St Louis
Mon 4/27
6:05 am-7:30 am
Nonstop3h 25m
$365
PhoenixSt. Louis
PHX - STL
PHXSTL
Phoenix Sky Harbor Intl
Mon 4/13
3:35 pm-10:40 pm
1 stop5h 05m
Lambert-St Louis
Fri 4/17
9:40 pm-11:05 pm
Nonstop3h 25m
$365
Showing 1-10 of 23 resultsSorted by cheapest first
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.
PHX-STL
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
TM9-STL
PHX-STL
How far ahead should I book a flight from Tempe to St. Louis?
Use this chart to determine the optimal time to book a round-trip flight from Tempe to St. Louis. Price data was last updated on February 27, 2026.
The best time to book flights from Tempe to St. Louis is 25 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Tempe to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Tempe to St. Louis (average of $93). Flying from Tempe to St. Louis in April is currently the most expensive (average of $312). 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 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 March 5, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 6% on flights from Tempe to St. Louis by exploring options for tickets in the afternoon.
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 February 21, 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 afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 March 5, 2026.
See what other customers who have flown with Southwest, Delta, and American 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.
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Tempe to St. Louis
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Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Tempe to St. Louis by cabin class
Find flights from Tempe to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Tempe and St. Louis flights
Browse other Tempe and St. Louis flight options. Last updated on March 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 5, 2026.
Tempe to St. Louis flights
Consider these flights traveling from Tempe to St. Louis.
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 March 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$99 | Average$212 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$229 | Average$386 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$346 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$257 | Average$394 | FlexibilityNo cancel fee | On-time63% |