$76+ Cheap flights from St. Louis (STL) to Pasadena, CA
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAX
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Pasadena 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 Lambert-St Louis to Pasadena are usually found in January or February, booked 61 days in advance, depart on a Friday or Thursday and return on a Tuesday
Cheap flight deals from St. Louis to Pasadena
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to PasadenaExplore the most affordable flight options available from St. Louis to Pasadena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
Explore the most affordable flight options available from St. Louis to Pasadena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
This deal was found by Cheapflights users on 9/9. 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.
Thu 10/110:20 am -
1 stop7h 03m
Sat 10/312:59 am -
1 stop6h 36m
Deal found 9/9![Frontier logo]()
$139
This deal was found by Cheapflights users on 9/9. 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.
Wed 9/3012:17 pm -
1 stop6h 06m
Wed 9/3012:59 am -
1 stop6h 36m
Deal found 9/9![Frontier logo]()
$144
This deal was found by Cheapflights users on 9/9. 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.
Fri 9/258:10 pm -
1 stop6h 00m
Wed 9/3012:59 am -
1 stop6h 36m
Deal found 9/9![Frontier logo]()
$155
This deal was found by Cheapflights users on 9/9. 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.
Sat 9/268:10 pm -
1 stop6h 00m
Wed 9/3012:59 am -
1 stop6h 36m
Deal found 9/9![Frontier logo]()
$156
This deal was found by Cheapflights users on 9/9. 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.
Tue 9/2912:17 pm -
1 stop6h 06m
Wed 9/3012:59 am -
1 stop6h 36m
Deal found 9/9![Frontier logo]()
$157
This Expedia deal was found by Cheapflights users on 9/8. 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.
Mon 11/97:59 pm -
1 stop20h 47m
Wed 11/116:15 am -
1 stop7h 08m
Deal found 9/8![Frontier logo]()
$164
This deal was found by Cheapflights users on 9/9. 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.
Fri 9/258:10 pm -
1 stop6h 00m
Sat 10/312:59 am -
1 stop6h 36m
Deal found 9/9![Frontier logo]()
$167
This deal was found by Cheapflights users on 9/9. 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.
Sat 9/268:10 pm -
1 stop6h 00m
Sat 10/312:59 am -
1 stop6h 36m
Deal found 9/9![Frontier logo]()
$169
This Expedia deal was found by Cheapflights users on 9/9. 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.
Sat 10/38:10 pm -
1 stop6h 00m
Tue 10/62:01 pm -
1 stop27h 16m
Deal found 9/9![Frontier logo]()
$174
This deal was found by Cheapflights users on 9/9. 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.
Tue 9/1512:17 pm -
1 stop6h 06m
Sat 9/1912:59 am -
1 stop6h 36m
Deal found 9/9![Frontier logo]()
$175
This Expedia deal was found by Cheapflights users on 9/9. 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.
Sat 11/77:59 pm -
1 stop6h 24m
Thu 11/122:31 pm -
1 stop26h 43m
Deal found 9/9![Frontier logo]()
$180
This Super.com deal was found by Cheapflights users on 9/9. 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.
Sat 10/38:10 pm -
1 stop6h 00m
Sat 10/3111:42 am -
1 stop5h 32m
Deal found 9/9![Frontier logo]()
$182
Best flights from St. Louis to PasadenaDiscover carefully curated flight deals from St. Louis to Pasadena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from St. Louis to Pasadena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Southwest deal was found by Cheapflights users on 9/9. 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 12/88:40 pm -
Nonstop4h 00m
Tue 12/1511:55 am -
Nonstop3h 30m
Deal found 9/9![Southwest logo]()
$417
This Delta deal was found by Cheapflights users on 9/7. 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.
Tue 1/126:30 am -
2 stops12h 41m
Sun 1/3111:45 pm -
1 stop8h 53m
Deal found 9/7![Delta logo]()
$463
This Southwest deal was found by Cheapflights users on 9/8. 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 1/216:35 am -
2 stops8h 10m
Mon 1/2511:50 pm -
1 stop7h 40m
Deal found 9/8![Southwest logo]()
$442
This Delta deal was found by Cheapflights users on 9/8. 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.
Fri 10/3012:28 pm -
2 stops10h 02m
Mon 11/25:30 am -
1 stop6h 02m
Deal found 9/8![Delta logo]()
$480
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/166:20 am -
2 stops9h 15m
Sat 1/237:10 am -
1 stop6h 30m
Deal found 9/10![Southwest logo]()
$442
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:30 am -
Nonstop4h 05m
Sat 10/318:15 am -
Nonstop3h 30m
Deal found 9/11![Southwest logo]()
$443
This Southwest deal was found by Cheapflights users on 9/9. 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 10/178:25 am -
2 stops7h 40m
Tue 10/208:20 am -
2 stops7h 25m
Deal found 9/9![Southwest logo]()
$447
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:55 pm -
Nonstop4h 00m
Fri 10/163:25 pm -
1 stop5h 25m
Deal found 9/10![Southwest logo]()
$449
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:50 pm -
Nonstop4h 10m
Sun 11/17:00 pm -
Nonstop3h 25m
Deal found 9/11![Southwest logo]()
$468
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:30 am -
Nonstop4h 05m
Sun 11/157:00 pm -
Nonstop3h 30m
Deal found 9/11![Southwest logo]()
$468
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:55 pm -
1 stop7h 45m
Sun 11/155:30 am -
Nonstop3h 30m
Deal found 9/10![Southwest logo]()
$481
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am -
Nonstop4h 05m
Sun 10/116:20 am -
1 stop7h 35m
Deal found 9/10![Southwest logo]()
$481
Last-minute flights from St. Louis to PasadenaDiscover last-minute flight deals from St. Louis to Pasadena. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Pasadena. Data last updated September 12, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 9/7. 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 9/1710:20 am -
1 stop7h 03m
Fri 9/1810:04 pm -
1 stop11h 28m
Deal found 9/7![Frontier logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/218:10 pm -
1 stop6h 00m
Tue 9/292:01 pm -
1 stop27h 16m
Deal found 9/8![Frontier logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/218:10 pm -
1 stop6h 00m
Wed 9/306:05 am -
1 stop11h 12m
Deal found 9/8![Frontier logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/218:10 pm -
1 stop6h 00m
Thu 10/12:28 pm -
1 stop26h 49m
Deal found 9/8![Frontier logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/218:10 pm -
1 stop6h 00m
Fri 10/26:05 am -
1 stop11h 12m
Deal found 9/8![Frontier logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/218:10 pm -
1 stop6h 00m
Mon 10/56:05 am -
1 stop11h 12m
Deal found 9/8![Frontier logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/2212:17 pm -
1 stop6h 06m
Tue 9/292:01 pm -
1 stop27h 16m
Deal found 9/8![Frontier logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/2212:17 pm -
1 stop6h 06m
Mon 10/56:05 am -
1 stop11h 12m
Deal found 9/8![Frontier logo]()
$334
This Frontier deal was found by Cheapflights users on 9/8. 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 9/2212:17 pm -
1 stop6h 06m
Sat 10/39:20 pm -
1 stop11h 57m
Deal found 9/8![Frontier logo]()
$349
This Expedia deal was found by Cheapflights users on 9/7. 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.
Tue 9/2212:17 pm -
1 stop21h 30m
Mon 9/2811:30 am -
1 stop22h 02m
Deal found 9/7![Frontier logo]()
$359
One-way flights from St. Louis to PasadenaSearch for one-way flight options from St. Louis to Pasadena. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from St. Louis to Pasadena. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This deal was found by Cheapflights users on 9/9. 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.
Tue 10/612:17 pm -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Mon 11/27:59 pm -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/77:59 pm -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/317:59 pm -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$83
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:18 pm -
1 stop10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$88
This Super.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/28:10 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$93
This Expedia deal was found by Cheapflights users on 9/8. 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.
Fri 10/168:00 pm -
1 stop16h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Mon 10/58:10 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$96
This Frontier deal was found by Cheapflights users on 9/9. 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 12/57:49 pm -
1 stop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$98
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:10 pm -
1 stop16h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$99
Find flight deals from St. Louis to Pasadena
Keep the following information in mind while searching for St. Louis to Pasadena flight deals. Data was last updated September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $139 |
One-way from | $76 |
Popular in | August |
Cheapest in | January |
Average price | $398 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Pasadena 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 7,457,451 searches. Data last updated September 12, 2026.
Use the filters below to find and compare flights from St. Louis to Pasadena that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Tue 12/8
2:28 pm-12:03 am
2 stops11h 35m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$207
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Tue 11/10
3:30 pm-11:59 pm
2 stops10h 29m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$207
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Sat 12/5
6:03 am-5:59 pm
2 stops13h 56m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$207
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Sat 11/7
3:35 pm-12:21 am
2 stops10h 46m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$207
Quickest round-trip
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Thu 10/8
9:55 pm-11:55 pm
Nonstop4h 00m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$209
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Tue 9/29
9:00 pm-11:00 pm
Nonstop4h 00m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$209
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Mon 12/7
12:31 pm-8:41 pm
2 stops10h 10m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$212
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Thu 10/8
7:00 pm-11:55 pm
1 stop6h 55m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$219
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Thu 12/10
3:32 pm-8:30 pm
1 stop6h 58m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$219
St. LouisLos Angeles
STL Lambert-St Louis - LAX Los Angeles
STLLAX
Lambert-St Louis
Tue 12/8
3:24 pm-11:56 pm
1 stop10h 32m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$222
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Pasadena
Have a flexible travel schedule? Discover the best time to fly to Pasadena from St. Louis with our price prediction graph.
STL-LAX
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 Pasadena
STL-P4S
STL-LAX
What is the cheapest time of day to fly from STL to P4S?
Find hourly flight availability from St. Louis to Pasadena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 12, 2026.
A simple way to save on the total cost of your ticket is to fly from St. Louis to Pasadena in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight at noon.
How much does it cost to fly round-trip from St. Louis to Pasadena?
Airfare is below average for this route at the moment.
St. Louis to Pasadena flights typically cost between $367 and $473 in October.The cheapest round-trip price found within the last 5 days was $139 on Frontier (Oct 1-Oct 3).
What is the cheapest day to fly from St. Louis to Pasadena?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Pasadena. Price data was last updated on February 17, 2026.
Travelers seeking maximum savings on their St. Louis to Pasadena flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Pasadena
Get insights into the airlines that provide service to Pasadena. 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 Pasadena. Reviews last updated September 12, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from St. Louis to Pasadena by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Pasadena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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St. Louis and Pasadena flights
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Top 7 airlines flying from St. Louis to Pasadena
Discover the top 7 airlines that operate flights from St. Louis to Pasadena. 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 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$139 | Average$272 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$228 | Average$399 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$361 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$275 | Average$456 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$292 | Average$439 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$304 | Average$384 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$347 | Average$625 | FlexibilityNo cancel fee | On-time75% |