$63+ Cheap flights from California 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STL
Sep 19 — Sep 261
Round-trip
1 adult, Economy
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Find cheap flights from California 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.Cheap flight deals from California to St. Louis
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Cheapest flights from California to St. LouisExplore the most affordable flight options available from California to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2026.
Explore the most affordable flight options available from California to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2026.
This Super.com deal was found by Cheapflights users on 8/17. 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.
Tue 9/156:15 am -
Nonstop3h 17m
Tue 9/2212:17 pm -
Nonstop3h 35m
Deal found 8/17![Frontier logo]()
$126
This Jettzy deal was found by Cheapflights users on 8/15. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:15 am -
Nonstop3h 17m
Tue 10/612:17 pm -
Nonstop3h 35m
Deal found 8/15![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/146:15 am -
1 stop11h 02m
Mon 9/218:10 pm -
1 stop16h 20m
Deal found 8/16![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 10/76:15 am -
1 stop11h 02m
Wed 10/144:19 pm -
1 stop9h 31m
Deal found 8/17![Frontier logo]()
$141
This Super.com deal was found by Cheapflights users on 8/17. 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 8/2812:25 pm -
Nonstop3h 25m
Sun 8/306:45 pm -
Nonstop3h 35m
Deal found 8/17![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 10/295:18 pm -
Nonstop3h 21m
Mon 11/25:32 pm -
Nonstop3h 43m
Deal found 8/15![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 10/295:18 pm -
Nonstop3h 21m
Sat 10/315:32 pm -
Nonstop3h 43m
Deal found 8/15![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 10/306:50 am -
1 stop10h 25m
Sat 10/315:32 pm -
Nonstop3h 43m
Deal found 8/15![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 10/36:25 am -
1 stop10h 52m
Sat 10/107:42 pm -
1 stop6h 14m
Deal found 8/19![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/36:25 am -
1 stop10h 52m
Mon 10/58:10 pm -
1 stop21h 49m
Deal found 8/18![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/96:15 am -
1 stop11h 02m
Fri 9/118:10 pm -
1 stop16h 20m
Deal found 8/16![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/96:15 am -
1 stop11h 02m
Wed 9/168:10 pm -
1 stop16h 20m
Deal found 8/19![Frontier logo]()
$160
Best flights from California to St. LouisDiscover carefully curated flight deals from California to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2026.
Discover carefully curated flight deals from California to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2026.
This FlightHub deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:10 pm -
1 stop26h 07m
Wed 10/72:29 pm -
1 stop9h 57m
Deal found 8/20![Frontier logo]()
$277
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:07 pm -
1 stop5h 33m
Sat 9/121:36 pm -
1 stop5h 34m
Deal found 8/15![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:55 pm -
1 stop5h 49m
Sat 9/195:00 pm -
1 stop6h 51m
Deal found 8/18![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 8/15. 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 9/182:30 pm -
1 stop7h 25m
Sun 9/205:50 am -
1 stop5h 30m
Deal found 8/15![Southwest logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:00 am -
1 stop8h 38m
Tue 9/293:19 pm -
1 stop9h 38m
Deal found 8/16![Alaska Airlines logo]()
$347
This Frontier deal was found by Cheapflights users on 8/19. 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.
Wed 9/236:15 am -
1 stop11h 02m
Fri 10/28:10 pm -
1 stop5h 37m
Deal found 8/19![Frontier logo]()
$286
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/232:15 pm -
1 stop6h 44m
Sun 10/255:10 am -
1 stop6h 00m
Deal found 8/15![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 8/17. 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 10/92:15 pm -
1 stop7h 39m
Sat 10/177:45 am -
1 stop6h 17m
Deal found 8/17![Delta logo]()
$332
This Southwest deal was found by Cheapflights users on 8/16. 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 9/3010:10 am -
1 stop6h 10m
Wed 10/76:00 am -
2 stops9h 15m
Deal found 8/16![Southwest logo]()
$342
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:15 am -
1 stop9h 24m
Wed 9/307:08 am -
1 stop6h 32m
Deal found 8/18![United Airlines logo]()
$322
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:02 am -
1 stop9h 36m
Wed 9/306:29 am -
1 stop10h 07m
Deal found 8/16![Alaska Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:52 pm -
1 stop5h 52m
Sat 9/195:00 pm -
1 stop6h 43m
Deal found 8/18![Delta logo]()
$337
This CheapOair deal was found by Cheapflights users on 8/19. 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.
Thu 9/246:23 pm -
1 stop14h 54m
Sun 9/2712:27 pm -
1 stop25h 28m
Deal found 8/19![Frontier logo]()
$337
This Southwest deal was found by Cheapflights users on 8/15. 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 9/2910:30 pm -
1 stop9h 35m
Tue 10/68:30 am -
1 stop9h 15m
Deal found 8/15![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:44 pm -
1 stop5h 54m
Sat 9/194:40 pm -
1 stop6h 12m
Deal found 8/19![United Airlines logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:12 am -
1 stop7h 58m
Thu 10/13:09 pm -
1 stop10h 15m
Deal found 8/19![Alaska Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 8/18. 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 9/147:10 pm -
Nonstop3h 40m
Thu 9/176:25 am -
Nonstop3h 55m
Deal found 8/18![Southwest logo]()
$347
This Delta deal was found by Cheapflights users on 8/15. 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 9/298:53 pm -
2 stops11h 38m
Tue 10/67:45 am -
1 stop7h 02m
Deal found 8/15![Delta logo]()
$350
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:44 pm -
1 stop6h 02m
Wed 9/910:53 am -
2 stops11h 59m
Deal found 8/18![United Airlines logo]()
$332
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:12 pm -
1 stop20h 58m
Wed 10/217:02 am -
2 stops13h 41m
Deal found 8/18![Alaska Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 8/19. 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.
Sat 10/247:45 am -
2 stops11h 24m
Sat 10/3111:20 am -
2 stops13h 31m
Deal found 8/19![Delta logo]()
$353
This Southwest deal was found by Cheapflights users on 8/19. 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 11/57:35 am -
1 stop6h 55m
Tue 11/108:30 am -
Nonstop4h 05m
Deal found 8/19![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/131:02 pm -
1 stop5h 57m
Sun 11/158:00 am -
1 stop9h 10m
Deal found 8/18![United Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:13 pm -
1 stop7h 46m
Mon 10/267:02 am -
1 stop8h 14m
Deal found 8/16![Alaska Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 8/19. 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.
Thu 9/2410:00 pm -
1 stop9h 00m
Wed 9/306:55 pm -
1 stop6h 52m
Deal found 8/19![Delta logo]()
$357
This Southwest deal was found by Cheapflights users on 8/19. 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 9/155:20 am -
1 stop7h 45m
Wed 9/239:00 pm -
Nonstop4h 00m
Deal found 8/19![Southwest logo]()
$357
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:10 pm -
1 stop9h 49m
Mon 10/197:02 am -
1 stop9h 36m
Deal found 8/15![Alaska Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 8/19. 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 9/227:05 am -
1 stop8h 35m
Wed 9/306:00 am -
1 stop7h 09m
Deal found 8/19![Delta logo]()
$357
This Southwest deal was found by Cheapflights users on 8/16. 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 9/296:45 am -
2 stops9h 10m
Wed 9/304:05 pm -
1 stop6h 50m
Deal found 8/16![Southwest logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:08 am -
1 stop7h 02m
Thu 9/246:29 am -
1 stop9h 36m
Deal found 8/18![Alaska Airlines logo]()
$387
Last-minute flights from California to St. LouisDiscover last-minute flight deals from California to St. Louis. Data last updated August 20, 2026 and is based on user searches.
Discover last-minute flight deals from California to St. Louis. Data last updated August 20, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/17. 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 8/2812:25 pm -
Nonstop3h 25m
Sun 8/306:45 pm -
Nonstop3h 35m
Deal found 8/17![Frontier logo]()
$146
This CheapOair deal was found by Cheapflights users on 8/15. 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 9/512:25 pm -
Nonstop3h 25m
Mon 9/76:45 pm -
Nonstop3h 35m
Deal found 8/15![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/96:15 am -
1 stop11h 02m
Fri 9/118:10 pm -
1 stop16h 20m
Deal found 8/16![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/96:15 am -
1 stop11h 02m
Wed 9/168:10 pm -
1 stop16h 20m
Deal found 8/19![Frontier logo]()
$160
This CheapOair deal was found by Cheapflights users on 8/17. 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.
Thu 9/106:00 am -
Nonstop3h 17m
Wed 9/1612:17 pm -
Nonstop3h 35m
Deal found 8/17![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/126:15 am -
1 stop11h 02m
Fri 9/188:10 pm -
1 stop16h 20m
Deal found 8/19![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/146:15 am -
1 stop11h 02m
Mon 9/218:10 pm -
1 stop16h 20m
Deal found 8/16![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/146:15 am -
1 stop11h 02m
Fri 9/188:10 pm -
1 stop16h 20m
Deal found 8/18![Frontier logo]()
$177
This Super.com deal was found by Cheapflights users on 8/17. 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.
Tue 9/156:15 am -
Nonstop3h 17m
Tue 9/2212:17 pm -
Nonstop3h 35m
Deal found 8/17![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 9/196:15 am -
Nonstop3h 17m
Mon 9/212:29 pm -
1 stop21h 31m
Deal found 8/15![Frontier logo]()
$176
This Super.com deal was found by Cheapflights users on 8/17. 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.
Wed 9/236:15 am -
Nonstop3h 17m
Mon 9/2812:17 pm -
Nonstop3h 35m
Deal found 8/17![Frontier logo]()
$161
This Jettzy deal was found by Cheapflights users on 8/15. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:15 am -
Nonstop3h 17m
Tue 10/612:17 pm -
Nonstop3h 35m
Deal found 8/15![Frontier logo]()
$129
One-way flights from California to St. LouisSearch for one-way flight options from California to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 20, 2026.
Search for one-way flight options from California to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 20, 2026.
This Super.com deal was found by Cheapflights users on 8/17. 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 10/36:15 am -
Nonstop3h 17m
Deal found 8/17![Frontier logo]()
$63
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:15 am -
Nonstop3h 17m
Deal found 8/17![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/166:15 am -
Nonstop3h 17m
Deal found 8/18![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/306:25 am -
1 stop10h 52m
Deal found 8/19![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/166:25 am -
1 stop10h 52m
Deal found 8/19![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 11/115:18 pm -
Nonstop3h 21m
Deal found 8/15![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/154:54 pm -
1 stop24h 23m
Deal found 8/18![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/126:25 am -
1 stop10h 52m
Deal found 8/18![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/96:25 am -
1 stop10h 52m
Deal found 8/19![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 10/204:53 pm -
1 stop20h 31m
Deal found 8/19![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 10/216:25 am -
1 stop6h 59m
Deal found 8/19![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 10/176:45 am -
1 stop10h 12m
Deal found 8/16![Frontier logo]()
$91
Find flight deals from California to St. Louis
Keep the following information in mind while searching for California to St. Louis flight deals. Data was last updated August 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $126 (Super.com) |
One-way from | $63 (Super.com) |
Popular in | March |
Cheapest in | October |
Average price | $431 |
Good round-trip deal | $362 or less |
Good one-way deal | $230 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from California 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 7,457,451 searches. Data last updated August 20, 2026.
Use the filters below to find and compare flights from California to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Tue 9/29
3:10 pm-7:17 pm
1 stop26h 07m
Lambert-St Louis
Wed 10/7
2:29 pm-10:26 pm
1 stop9h 57m
$277
OntarioSt. Louis
ONT Ontario - STL Lambert-St Louis
ONTSTL
Ontario
Wed 9/23
6:15 am-7:17 pm
1 stop11h 02m
Lambert-St Louis
Fri 10/2
8:10 pm-11:47 pm
1 stop5h 37m
$286
San DiegoSt. Louis
SAN San Diego - STL Lambert-St Louis
SANSTL
San Diego
Sat 9/5
4:07 pm-11:40 pm
1 stop5h 33m
Lambert-St Louis
Sat 9/12
1:36 pm-5:10 pm
1 stop5h 34m
$307
San DiegoSt. Louis
SAN San Diego - STL Lambert-St Louis
SANSTL
San Diego
Wed 9/23
2:15 pm-10:59 pm
1 stop6h 44m
Lambert-St Louis
Sun 10/25
5:10 am-9:10 am
1 stop6h 00m
$307
BurbankSt. Louis
BUR Burbank Bob Hope - STL Lambert-St Louis
BURSTL
Burbank Bob Hope
Wed 9/23
7:15 am-6:39 pm
1 stop9h 24m
Lambert-St Louis
Wed 9/30
7:08 am-11:40 am
1 stop6h 32m
$322
BurbankSt. Louis
BUR Burbank Bob Hope - STL Lambert-St Louis
BURSTL
Burbank Bob Hope
Wed 9/16
4:55 pm-12:44 am
1 stop5h 49m
Lambert-St Louis
Sat 9/19
5:00 pm-9:51 pm
1 stop6h 51m
$327
BurbankSt. Louis
BUR Burbank Bob Hope - STL Lambert-St Louis
BURSTL
Burbank Bob Hope
Fri 9/11
12:44 pm-8:38 pm
1 stop5h 54m
Lambert-St Louis
Sat 9/19
4:40 pm-8:52 pm
1 stop6h 12m
$327
BurbankSt. Louis
BUR Burbank Bob Hope - STL Lambert-St Louis
BURSTL
Burbank Bob Hope
Fri 10/9
2:15 pm-11:54 pm
1 stop7h 39m
Lambert-St Louis
Sat 10/17
7:45 am-12:02 pm
1 stop6h 17m
$332
BurbankSt. Louis
BUR Burbank Bob Hope - STL Lambert-St Louis
BURSTL
Burbank Bob Hope
Sat 9/5
12:44 pm-8:46 pm
1 stop6h 02m
Lambert-St Louis
Wed 9/9
10:53 am-8:52 pm
2 stops11h 59m
$332
BurbankSt. Louis
BUR Burbank Bob Hope - STL Lambert-St Louis
BURSTL
Burbank Bob Hope
Fri 9/18
2:30 pm-11:55 pm
1 stop7h 25m
Lambert-St Louis
Sun 9/20
5:50 am-9:20 am
1 stop5h 30m
$337
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from California to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from California with our price prediction graph.
LAS-STL
ONT-STL
SAN-STL
SMF-STL
BUR-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 California to St. Louis
USCA-STL
LAS-STL
ONT-STL
SAN-STL
SMF-STL
What is the cheapest month to book a flight from California to St. Louis?
Currently, October is the cheapest month in which you can book a flight from California to St. Louis (average of $395). Flying from California to St. Louis in March is currently the most expensive (average of $505). 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 CA to STL?
Find hourly flight availability from California 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 August 20, 2026.
When flying from California to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 22% versus a flight in the afternoon.
Weekly flight availability from California to St. Louis
Explore weekly flight availability from California 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 August 20, 2026.
The most flights from USCA to STL are scheduled on a Tuesday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).
How much does it cost to fly round-trip from California to St. Louis?
Airfare is below average for this route at the moment.
California to St. Louis flights typically cost between $343 and $488 in September.The cheapest round-trip price found within the last 5 days was $301 on Frontier (Sep 11-Sep 14).
How far ahead should I book a flight from California to St. Louis?
To ensure you get the cheapest price possible for a flight from California to St. Louis, you should look to book at least 46 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from California to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from California to St. Louis. Price data was last updated on August 15, 2026.
Travelers seeking maximum savings on their California to St. Louis flight should consider departing on Tuesday 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.
Related info for your journey
Find useful and relevant information for your journey from California 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
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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Alternative routes for California 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.
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California and St. Louis flights
Browse other California and St. Louis flight options. Last updated on August 20, 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 August 20, 2026.
California to St. Louis flights
Consider these flights traveling from California to St. Louis.
Top 7 airlines flying from California to St. Louis
Discover the top 7 airlines that operate flights from California 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 7,457,451 searches. Data last updated August 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$431 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$102 | Average$402 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$105 | Average$272 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$180 | Average$491 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$209 | Average$408 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$226 | Average$456 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$497 | FlexibilityNo cancel fee | On-time63% |