$48+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STL
Jul 20 — Jul 271
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
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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 June 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 June 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 7/144:13 pm
SNA
- STL
1 stop23h 52m
Frontier
Tue 7/217:03 pm
STL
- SNA
1 stop22h 25m
Frontier
Deal found 6/16![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/86:00 pm
BUR
- STL
1 stop22h 15m
Frontier
Mon 7/137:10 pm
STL
- BUR
1 stop24h 05m
Frontier
Deal found 6/15![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/119:00 am
BUR
- STL
1 stop7h 15m
Frontier
Mon 7/137:10 pm
STL
- BUR
1 stop24h 05m
Frontier
Deal found 6/15![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 7/154:13 pm
SNA
- STL
1 stop24h 02m
Frontier
Wed 7/227:03 pm
STL
- SNA
1 stop19h 28m
Frontier
Deal found 6/19![Frontier logo]()
$184
This Trip.com deal was found by Cheapflights users on 6/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:00 am
BUR
- STL
1 stop6h 50m
Frontier
Mon 8/246:45 pm
STL
- BUR
1 stop24h 05m
Frontier
Deal found 6/18![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/143:40 pm
ONT
- STL
1 stop24h 25m
Frontier
Tue 7/218:08 pm
STL
- ONT
1 stop15h 56m
Frontier
Deal found 6/18![Frontier logo]()
$199
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/912:59 am
LAS
- STL
1 stop5h 47m
American Airlines
Mon 7/137:22 pm
STL
- LAS
1 stop6h 26m
American Airlines
Deal found 6/16![American Airlines logo]()
$199
This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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.
Wed 7/812:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Sun 7/127:10 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 6/17![Frontier logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Thu 8/206:45 am
LAS
- STL
1 stop8h 45m
Frontier
Sun 8/238:21 pm
STL
- LAS
Nonstop3h 38m
Frontier
Deal found 6/16![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/2012:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Thu 7/236:34 pm
STL
- LAS
1 stop27h 52m
Frontier
Deal found 6/16![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 7/219:48 pm
LAS
- STL
2 stops19h 35m
Frontier
Wed 7/297:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 6/16![Frontier logo]()
$207
This Frontier deal was found by Cheapflights users on 6/19. 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.
Thu 8/612:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Mon 8/108:08 pm
STL
- LAS
1 stop5h 21m
Frontier
Deal found 6/19![Frontier logo]()
$209
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 June 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 June 20, 2026.
This Southwest deal was found by Cheapflights users on 6/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:20 pm
LAS
- STL
1 stop5h 20m
Southwest
Mon 7/275:05 am
STL
- LAS
1 stop5h 05m
Southwest
Deal found 6/17![Southwest logo]()
$199
This Delta deal was found by Cheapflights users on 6/19. 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.
Mon 8/175:02 pm
LAS
- STL
1 stop5h 39m
Delta
Wed 8/198:00 am
STL
- LAS
1 stop6h 06m
Delta
Deal found 6/19![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2311:59 pm
LAS
- STL
1 stop6h 40m
United Airlines
Sun 7/265:10 am
STL
- LAS
1 stop5h 57m
United Airlines
Deal found 6/17![United Airlines logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 6/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:06 pm
BUR
- STL
1 stop7h 53m
Alaska Airlines
Thu 9/176:08 pm
STL
- BUR
1 stop17h 41m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 6/19. 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.
Fri 8/145:02 pm
LAS
- STL
1 stop5h 39m
Delta
Sun 8/168:48 am
STL
- LAS
1 stop5h 50m
Delta
Deal found 6/19![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 6/16. 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 7/227:05 am
LAS
- STL
1 stop5h 45m
Southwest
Wed 7/225:20 pm
STL
- LAS
1 stop5h 50m
Southwest
Deal found 6/16![Southwest logo]()
$279
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:45 am
LAS
- STL
1 stop8h 19m
United Airlines
Sat 8/151:36 pm
STL
- LAS
2 stops8h 28m
United Airlines
Deal found 6/16![United Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 6/19. 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.
Fri 8/149:30 pm
SAN
- STL
1 stop9h 50m
Delta
Tue 8/1812:52 pm
STL
- SAN
1 stop8h 43m
Delta
Deal found 6/19![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 6/18. 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.
Sat 7/184:20 pm
SMF
- STL
1 stop6h 20m
Southwest
Sat 7/256:45 pm
STL
- SMF
1 stop6h 50m
Southwest
Deal found 6/18![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 6/19. 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 8/112:00 pm
BUR
- STL
1 stop7h 21m
Delta
Sat 8/158:00 am
STL
- BUR
1 stop6h 00m
Delta
Deal found 6/19![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/16. 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 9/111:50 am
LAS
- STL
1 stop4h 55m
Southwest
Thu 9/38:25 am
STL
- LAS
2 stops7h 15m
Southwest
Deal found 6/16![Southwest logo]()
$335
This Delta deal was found by Cheapflights users on 6/19. 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 8/112:00 pm
BUR
- STL
1 stop7h 21m
Delta
Thu 8/208:00 am
STL
- BUR
1 stop6h 00m
Delta
Deal found 6/19![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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.
Fri 8/146:10 pm
BUR
- STL
2 stops12h 14m
Alaska Airlines
Tue 8/186:02 am
STL
- BUR
1 stop8h 21m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$412
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/14:07 pm
SAN
- STL
1 stop5h 50m
United Airlines
Sat 7/45:10 am
STL
- SAN
2 stops8h 41m
United Airlines
Deal found 6/16![United Airlines logo]()
$383
This Southwest deal was found by Cheapflights users on 6/15. 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.
Mon 8/319:45 am
LAS
- STL
1 stop6h 10m
Southwest
Thu 9/38:25 am
STL
- LAS
2 stops7h 15m
Southwest
Deal found 6/15![Southwest logo]()
$335
This Delta deal was found by Cheapflights users on 6/18. 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.
Mon 8/104:55 pm
BUR
- STL
1 stop5h 46m
Delta
Sat 8/153:29 pm
STL
- BUR
2 stops8h 19m
Delta
Deal found 6/18![Delta logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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.
Thu 8/1311:11 am
LAS
- STL
2 stops10h 31m
Alaska Airlines
Tue 8/185:42 am
STL
- LAS
2 stops11h 53m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$417
This United Airlines deal was found by Cheapflights users on 6/19. 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 8/146:30 am
SAN
- STL
1 stop8h 04m
United Airlines
Tue 8/189:00 am
STL
- SAN
2 stops10h 26m
United Airlines
Deal found 6/19![United Airlines logo]()
$402
This Southwest deal was found by Cheapflights users on 6/19. 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.
Fri 8/711:25 am
LAS
- STL
2 stops6h 45m
Southwest
Sun 8/97:30 pm
STL
- LAS
1 stop6h 15m
Southwest
Deal found 6/19![Southwest logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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 8/258:23 am
SFO
- STL
1 stop6h 47m
Alaska Airlines
Wed 8/266:08 pm
STL
- SFO
1 stop16h 59m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$442
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Tue 7/711:55 am
SAN
- STL
2 stops9h 34m
United Airlines
Tue 7/146:00 am
STL
- SAN
1 stop7h 21m
United Airlines
Deal found 6/19![United Airlines logo]()
$402
This Southwest deal was found by Cheapflights users on 6/16. 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 10/141:00 pm
SMF
- STL
2 stops7h 25m
Southwest
Mon 10/195:35 am
STL
- SMF
1 stop6h 30m
Southwest
Deal found 6/16![Southwest logo]()
$353
This Delta deal was found by Cheapflights users on 6/17. 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.
Tue 8/44:50 pm
LGB
- STL
1 stop5h 51m
Delta
Tue 8/118:00 am
STL
- LGB
1 stop6h 01m
Delta
Deal found 6/17![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 6/15. 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 7/812:48 pm
BUR
- STL
1 stop5h 55m
United Airlines
Thu 7/97:20 am
STL
- BUR
2 stops9h 57m
United Airlines
Deal found 6/15![United Airlines logo]()
$403
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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 9/247:11 am
SNA
- STL
1 stop7h 59m
Alaska Airlines
Thu 9/247:36 pm
STL
- SNA
1 stop16h 39m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$473
This Southwest deal was found by Cheapflights users on 6/15. 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 7/284:20 pm
LGB
- STL
1 stop5h 15m
Southwest
Tue 8/42:50 pm
STL
- LGB
2 stops8h 05m
Southwest
Deal found 6/15![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:44 pm
BUR
- STL
1 stop6h 02m
United Airlines
Wed 9/24:40 pm
STL
- BUR
1 stop6h 12m
United Airlines
Deal found 6/17![United Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 6/18. 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 8/125:00 pm
OAK
- STL
1 stop5h 41m
Delta
Tue 8/188:00 am
STL
- OAK
1 stop5h 52m
Delta
Deal found 6/18![Delta logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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 8/116:00 am
SFO
- STL
2 stops10h 05m
Alaska Airlines
Wed 8/198:36 am
STL
- SFO
2 stops10h 46m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 6/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:30 am
SAN
- STL
Nonstop3h 40m
Southwest
Sat 8/84:20 pm
STL
- SAN
1 stop6h 40m
Southwest
Deal found 6/17![Southwest logo]()
$373
Last-minute flights from California to St. LouisDiscover last-minute flight deals from California to St. Louis. Data last updated June 20, 2026 and is based on user searches.
Discover last-minute flight deals from California to St. Louis. Data last updated June 20, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 6/19. 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.
Sat 7/46:30 am
LAS
- STL
1 stop10h 23m
Frontier
Thu 7/167:10 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 6/19![Frontier logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/86:00 pm
BUR
- STL
1 stop22h 15m
Frontier
Mon 7/137:10 pm
STL
- BUR
1 stop24h 05m
Frontier
Deal found 6/15![Frontier logo]()
$182
This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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.
Wed 7/812:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Sun 7/127:10 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 6/17![Frontier logo]()
$203
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/912:59 am
LAS
- STL
1 stop5h 47m
American Airlines
Mon 7/137:22 pm
STL
- LAS
1 stop6h 26m
American Airlines
Deal found 6/16![American Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/119:00 am
BUR
- STL
1 stop7h 15m
Frontier
Mon 7/137:10 pm
STL
- BUR
1 stop24h 05m
Frontier
Deal found 6/15![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 7/144:13 pm
SNA
- STL
1 stop23h 52m
Frontier
Tue 7/217:03 pm
STL
- SNA
1 stop22h 25m
Frontier
Deal found 6/16![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/143:40 pm
ONT
- STL
1 stop24h 25m
Frontier
Tue 7/218:08 pm
STL
- ONT
1 stop15h 56m
Frontier
Deal found 6/18![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 7/154:13 pm
SNA
- STL
1 stop24h 02m
Frontier
Wed 7/227:03 pm
STL
- SNA
1 stop19h 28m
Frontier
Deal found 6/19![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/2012:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Thu 7/236:34 pm
STL
- LAS
1 stop27h 52m
Frontier
Deal found 6/16![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 7/219:48 pm
LAS
- STL
2 stops19h 35m
Frontier
Wed 7/297:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 6/16![Frontier logo]()
$207
This Gotogate deal was found by Cheapflights users on 6/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Mon 7/274:09 pm
STL
- LAS
1 stop21h 55m
Frontier
Deal found 6/17![Frontier logo]()
$210
This Super.com deal was found by Cheapflights users on 6/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:00 am
LAS
- STL
1 stop6h 56m
Frontier
Wed 7/297:03 pm
STL
- LAS
Nonstop3h 33m
Frontier
Deal found 6/15![Frontier logo]()
$211
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 June 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 June 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Sat 8/1512:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/17![Frontier logo]()
$48
This Cheapflightsfares deal was found by Cheapflights users on 6/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/20![Frontier logo]()
$49
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/812:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/17![Frontier logo]()
$54
This Super.com deal was found by Cheapflights users on 6/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3112:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/19![Frontier logo]()
$55
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Fri 7/1012:50 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/16![Frontier logo]()
$56
This Cheapflightsfares deal was found by Cheapflights users on 6/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2812:40 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/19![Frontier logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 8/2212:25 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 6/19![Frontier logo]()
$62
This Trip.com deal was found by Cheapflights users on 6/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:51 pm
SAN
- STL
1 stop19h 14m
Frontier
Deal found 6/18![Frontier logo]()
$82
This Trip.com deal was found by Cheapflights users on 6/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:00 pm
BUR
- STL
1 stop22h 15m
Frontier
Deal found 6/16![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Tue 7/146:00 pm
BUR
- STL
1 stop22h 05m
Frontier
Deal found 6/17![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/153:03 pm
SAN
- STL
1 stop25h 12m
Frontier
Deal found 6/18![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/151:00 pm
BUR
- STL
1 stop27h 15m
Frontier
Deal found 6/17![Frontier logo]()
$84
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 June 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $167 (Kiwi.com) |
One-way from | $48 (Kiwi.com) |
Popular in | March |
Cheapest in | October |
Average price | $466 |
Good round-trip deal | $443 or less |
Good one-way deal | $198 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 2,558,603 searches. Data last updated June 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 - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 7/23
5:20 pm-12:40 am
1 stop5h 20m
Lambert-St Louis
Mon 7/27
5:05 am-8:10 am
1 stop5h 05m
$199
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Mon 8/17
5:02 pm-12:41 am
1 stop5h 39m
Lambert-St Louis
Wed 8/19
8:00 am-12:06 pm
1 stop6h 06m
$217
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 8/14
5:02 pm-12:41 am
1 stop5h 39m
Lambert-St Louis
Sun 8/16
8:48 am-12:38 pm
1 stop5h 50m
$217
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 7/23
11:59 pm-8:39 am
1 stop6h 40m
Lambert-St Louis
Sun 7/26
5:10 am-9:07 am
1 stop5h 57m
$261
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Wed 7/22
7:05 am-2:50 pm
1 stop5h 45m
Lambert-St Louis
Wed 7/22
5:20 pm-9:10 pm
1 stop5h 50m
$279
San DiegoSt. Louis
SAN - STL
SANSTL
San Diego
Fri 8/14
9:30 pm-9:20 am
1 stop9h 50m
Lambert-St Louis
Tue 8/18
12:52 pm-7:35 pm
1 stop8h 43m
$297
BurbankSt. Louis
BUR - STL
BURSTL
Burbank Bob Hope
Tue 8/11
2:00 pm-11:21 pm
1 stop7h 21m
Lambert-St Louis
Sat 8/15
8:00 am-12:00 pm
1 stop6h 00m
$307
BurbankSt. Louis
BUR - STL
BURSTL
Burbank Bob Hope
Tue 8/11
2:00 pm-11:21 pm
1 stop7h 21m
Lambert-St Louis
Thu 8/20
8:00 am-12:00 pm
1 stop6h 00m
$307
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Tue 8/11
7:45 am-6:04 pm
1 stop8h 19m
Lambert-St Louis
Sat 8/15
1:36 pm-8:04 pm
2 stops8h 28m
$312
BurbankSt. Louis
BUR - STL
BURSTL
Burbank Bob Hope
Mon 8/10
4:55 pm-12:41 am
1 stop5h 46m
Lambert-St Louis
Sat 8/15
3:29 pm-9:48 pm
2 stops8h 19m
$312
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
SMF-STL
BUR-STL
LAX-STL
ONT-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
SMF-STL
BUR-STL
LAX-STL
What is the cheapest month to book a flight from California to St. Louis?
Currently, February is the cheapest month in which you can book a flight from California to St. Louis (average of $91). Flying from California to St. Louis in September is currently the most expensive (average of $676). 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 June 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 29% 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 June 20, 2026.
The most flights from USCA to STL are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, 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?
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 70 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 June 20, 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
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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St. Louis flight routes
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Alternative routes for California to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
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 California to St. Louis by cabin class
Find flights from California to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
California and St. Louis flights
Browse other California and St. Louis flight options. Last updated on June 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 June 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 2,558,603 searches. Data last updated June 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$139 | Average$388 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$140 | Average$268 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$209 | Average$406 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$216 | Average$464 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$232 | Average$431 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$236 | Average$493 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$281 | Average$495 | FlexibilityNo cancel fee | On-time63% |