$65+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STL
Mar 19 — Mar 261
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 February 17, 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 February 17, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 2/13. 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 3/116:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Sun 3/158:06 pm
STL
- LAS
Nonstop4h 02m
Frontier
Deal found 2/13![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:59 am
LAS
- STL
1 stop16h 13m
Frontier
Sat 5/28:12 pm
STL
- LAS
1 stop12h 52m
Frontier
Deal found 2/13![Frontier logo]()
$134
This Super.com deal was found by Cheapflights users on 2/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/276:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Tue 3/3112:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/16![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 4/2412:36 pm
SAN
- STL
1 stop28h 36m
Frontier
Mon 4/278:12 pm
STL
- SAN
1 stop25h 52m
Frontier
Deal found 2/16![Frontier logo]()
$136
This Super.com deal was found by Cheapflights users on 2/17. 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.
Thu 2/264:10 pm
LAS
- STL
Nonstop3h 16m
Frontier
Sun 3/110:11 pm
STL
- LAS
Nonstop3h 48m
Frontier
Deal found 2/17![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 2/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Sun 3/228:06 pm
STL
- LAS
Nonstop4h 02m
Frontier
Deal found 2/15![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Tue 3/176:25 am
SAN
- STL
1 stop25h 24m
Frontier
Wed 3/258:12 pm
STL
- SAN
1 stop26h 21m
Frontier
Deal found 2/15![Frontier logo]()
$138
This Booking.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Sun 3/86:19 pm
STL
- LAS
Nonstop3h 50m
Frontier
Deal found 2/14![Frontier logo]()
$139
This Super.com deal was found by Cheapflights users on 2/14. 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.
Mon 3/166:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Mon 3/2312:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/14![Frontier logo]()
$146
This Cheapflightsfares deal was found by Cheapflights users on 2/14. 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 3/246:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Fri 3/2712:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/14![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/179:20 pm
LAS
- STL
1 stop10h 29m
Frontier
Tue 3/2412:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/16![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:25 am
SAN
- STL
1 stop10h 47m
Frontier
Mon 5/118:12 pm
STL
- SAN
1 stop25h 52m
Frontier
Deal found 2/13![Frontier logo]()
$153
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 February 17, 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 February 17, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 2/13. 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 3/116:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Sun 3/158:06 pm
STL
- LAS
Nonstop4h 02m
Frontier
Deal found 2/13![Frontier logo]()
$117
This American Airlines deal was found by Cheapflights users on 2/13. 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.
Fri 4/311:56 pm
LAS
- STL
1 stop6h 59m
American Airlines
Sun 4/56:50 pm
STL
- LAS
1 stop6h 06m
American Airlines
Deal found 2/13![American Airlines logo]()
$187
This Trip.com deal was found by Cheapflights users on 2/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:45 am
SNA
- STL
1 stop10h 26m
Multiple Airlines
Tue 3/2412:14 pm
STL
- SNA
1 stop10h 59m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$206
This United Airlines deal was found by Cheapflights users on 2/15. 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.
Sun 4/2611:59 pm
SMF
- STL
1 stop6h 26m
United Airlines
Tue 4/284:30 pm
STL
- SMF
1 stop6h 26m
United Airlines
Deal found 2/15![United Airlines logo]()
$237
This Super.com deal was found by Cheapflights users on 2/13. 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 3/276:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Sun 3/298:06 pm
STL
- LAS
Nonstop4h 02m
Frontier
Deal found 2/13![Frontier logo]()
$136
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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 5/278:06 am
SMF
- STL
1 stop7h 00m
Alaska Airlines
Mon 6/17:56 pm
STL
- SMF
1 stop15h 30m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 4/2412:36 pm
SAN
- STL
1 stop28h 36m
Frontier
Mon 4/278:12 pm
STL
- SAN
1 stop25h 52m
Frontier
Deal found 2/16![Frontier logo]()
$136
This Delta deal was found by Cheapflights users on 2/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:00 pm
LAX
- STL
2 stops10h 25m
Delta
Sat 4/257:00 am
STL
- LAX
1 stop5h 53m
Delta
Deal found 2/16![Delta logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/177:00 am
LAS
- STL
Nonstop3h 15m
Frontier
Tue 3/2412:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/16![Frontier logo]()
$137
This Southwest deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:20 am
LAX
- STL
Nonstop3h 35m
Southwest
Tue 4/78:35 am
STL
- LAX
1 stop7h 00m
Southwest
Deal found 2/14![Southwest logo]()
$338
This Super.com deal was found by Cheapflights users on 2/15. 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.
Thu 4/303:35 pm
LAS
- STL
Nonstop3h 25m
Frontier
Sun 5/39:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 2/15![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Tue 3/1710:02 am
BUR
- STL
1 stop7h 09m
Multiple Airlines
Tue 3/2412:14 pm
STL
- BUR
1 stop7h 56m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$217
This American Airlines deal was found by Cheapflights users on 2/13. 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.
Wed 4/81:03 pm
SMF
- STL
1 stop8h 56m
American Airlines
Fri 4/105:46 am
STL
- SMF
1 stop7h 02m
American Airlines
Deal found 2/13![American Airlines logo]()
$237
This United Airlines deal was found by Cheapflights users on 2/14. 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 6/104:19 pm
SMF
- STL
1 stop5h 38m
United Airlines
Wed 6/244:48 pm
STL
- SMF
1 stop6h 24m
United Airlines
Deal found 2/14![United Airlines logo]()
$237
This Cheapflightsfares deal was found by Cheapflights users on 2/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/276:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Tue 3/3111:27 am
STL
- LAS
1 stop13h 41m
Frontier
Deal found 2/16![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/305:59 pm
BUR
- STL
1 stop15h 20m
Multiple Airlines
Mon 4/68:16 pm
STL
- BUR
2 stops38h 51m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$229
This United Airlines deal was found by Cheapflights users on 2/15. 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.
Tue 5/2611:59 pm
SMF
- STL
1 stop6h 42m
United Airlines
Sat 5/307:23 pm
STL
- SMF
1 stop6h 36m
United Airlines
Deal found 2/15![United Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 2/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:12 am
SAN
- STL
1 stop8h 18m
American Airlines
Tue 5/128:55 am
STL
- SAN
1 stop7h 23m
American Airlines
Deal found 2/15![American Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 5/143:35 pm
LAS
- STL
Nonstop3h 25m
Frontier
Sun 5/179:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 2/15![Frontier logo]()
$171
This Alaska Airlines deal was found by Cheapflights users on 2/15. 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 6/47:05 am
BUR
- STL
1 stop7h 32m
Alaska Airlines
Mon 6/87:41 pm
STL
- BUR
1 stop16h 00m
Alaska Airlines
Deal found 2/15![Alaska Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/172:53 pm
SNA
- STL
2 stops16h 56m
Multiple Airlines
Thu 3/198:06 pm
STL
- SNA
1 stop18h 54m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$232
This United Airlines deal was found by Cheapflights users on 2/15. 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.
Mon 4/138:07 pm
SMF
- STL
1 stop7h 43m
United Airlines
Sat 4/182:40 pm
STL
- SMF
1 stop8h 16m
United Airlines
Deal found 2/15![United Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 2/16. 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.
Wed 4/152:04 pm
SAN
- STL
1 stop6h 55m
American Airlines
Mon 4/205:21 pm
STL
- SAN
1 stop8h 12m
American Airlines
Deal found 2/16![American Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:00 am
LAS
- STL
1 stop6h 12m
Frontier
Fri 4/179:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 2/13![Frontier logo]()
$172
This United Airlines deal was found by Cheapflights users on 2/16. 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 5/1311:00 am
SAN
- STL
1 stop7h 43m
United Airlines
Wed 5/205:59 pm
STL
- SAN
1 stop6h 17m
United Airlines
Deal found 2/16![United Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 2/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:35 pm
SAN
- STL
1 stop8h 16m
American Airlines
Wed 4/18:00 am
STL
- SAN
1 stop8h 23m
American Airlines
Deal found 2/15![American Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 2/13. 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 4/111:05 am
SNA
- STL
2 stops11h 16m
Delta
Wed 4/82:12 pm
STL
- SNA
2 stops10h 17m
Delta
Deal found 2/13![Delta logo]()
$330
This Southwest deal was found by Cheapflights users on 2/16. 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 4/155:15 am
LAX
- STL
1 stop7h 50m
Southwest
Mon 4/209:40 pm
STL
- LAX
Nonstop4h 05m
Southwest
Deal found 2/16![Southwest logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 4/76:25 am
SAN
- STL
1 stop25h 23m
Frontier
Fri 4/108:16 pm
STL
- SAN
1 stop29h 46m
Frontier
Deal found 2/16![Frontier logo]()
$176
This United Airlines deal was found by Cheapflights users on 2/16. 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 3/31:45 pm
SAN
- STL
1 stop6h 29m
United Airlines
Sat 3/75:15 am
STL
- SAN
1 stop6h 05m
United Airlines
Deal found 2/16![United Airlines logo]()
$237
Last-minute flights from California to St. LouisDiscover last-minute flight deals from California to St. Louis. Data last updated February 17, 2026 and is based on user searches.
Discover last-minute flight deals from California to St. Louis. Data last updated February 17, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 2/17. 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.
Thu 2/264:10 pm
LAS
- STL
Nonstop3h 16m
Frontier
Sun 3/110:11 pm
STL
- LAS
Nonstop3h 48m
Frontier
Deal found 2/17![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 2/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:10 pm
LAS
- STL
Nonstop3h 16m
Frontier
Mon 3/912:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/16![Frontier logo]()
$163
This Booking.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Sun 3/86:19 pm
STL
- LAS
Nonstop3h 50m
Frontier
Deal found 2/14![Frontier logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 2/13. 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 3/116:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Sun 3/158:06 pm
STL
- LAS
Nonstop4h 02m
Frontier
Deal found 2/13![Frontier logo]()
$117
This Frontier deal was found by Cheapflights users on 2/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Sun 3/228:06 pm
STL
- LAS
Nonstop4h 02m
Frontier
Deal found 2/15![Frontier logo]()
$138
This Super.com deal was found by Cheapflights users on 2/14. 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.
Mon 3/166:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Mon 3/2312:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/14![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Tue 3/176:25 am
SAN
- STL
1 stop25h 24m
Frontier
Wed 3/258:12 pm
STL
- SAN
1 stop26h 21m
Frontier
Deal found 2/15![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/179:20 pm
LAS
- STL
1 stop10h 29m
Frontier
Tue 3/2412:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/16![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Tue 3/176:25 am
SAN
- STL
1 stop25h 24m
Frontier
Tue 3/2412:14 pm
STL
- SAN
1 stop26h 59m
Frontier
Deal found 2/15![Frontier logo]()
$172
This Cheapflightsfares deal was found by Cheapflights users on 2/14. 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 3/246:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Fri 3/2712:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/14![Frontier logo]()
$147
This Super.com deal was found by Cheapflights users on 2/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/276:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Tue 3/3112:14 pm
STL
- LAS
Nonstop3h 57m
Frontier
Deal found 2/16![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/276:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Mon 3/308:12 pm
STL
- LAS
1 stop26h 03m
Frontier
Deal found 2/16![Frontier logo]()
$158
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 February 17, 2026.
Search for one-way flight options from California to St. Louis. Find affordable one-way fares based on user searches. Data last updated February 17, 2026.
This Trip.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:59 am
ONT
- STL
1 stop16h 13m
Frontier
Deal found 2/13![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:59 am
LAS
- STL
1 stop16h 13m
Frontier
Deal found 2/13![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 4/187:05 am
SAN
- STL
1 stop10h 07m
Frontier
Deal found 2/16![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/176:25 am
SAN
- STL
1 stop25h 24m
Frontier
Deal found 2/16![Frontier logo]()
$67
This Super.com deal was found by Cheapflights users on 2/14. 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 4/173:35 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 2/14![Frontier logo]()
$68
This Frontier deal was found by Cheapflights users on 2/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Deal found 2/16![Frontier logo]()
$69
This Trip.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:00 am
SFO
- STL
1 stop11h 12m
Frontier
Deal found 2/14![Frontier logo]()
$70
This Trip.com deal was found by Cheapflights users on 2/16. 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.
Tue 3/1012:59 am
LAS
- STL
1 stop6h 50m
Frontier
Deal found 2/16![Frontier logo]()
$71
This Trip.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:20 pm
LAS
- STL
1 stop10h 29m
Frontier
Deal found 2/13![Frontier logo]()
$72
This WAYA deal was found by Cheapflights users on 2/15. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1712:59 am
LAS
- STL
1 stop6h 50m
Frontier
Deal found 2/15![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 4/159:20 pm
LAS
- STL
1 stop19h 52m
Frontier
Deal found 2/17![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 2/14. 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.
Sun 3/156:25 am
SAN
- STL
1 stop25h 24m
Frontier
Deal found 2/14![Frontier logo]()
$77
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 February 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $117 (Cheapflightsfares) |
One-way from | $65 (Trip.com) |
Popular in | February |
Cheapest in | October |
Average price | $437 |
Good round-trip deal | $341 or less |
Good one-way deal | $163 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 February 17, 2026.
Use the filters below to find and compare flights from California to St. Louis that are best for you.
Fly from
California
Fly to
St. Louis
Route
Depart
Return
Price
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Wed 3/11
6:05 am-11:19 am
Nonstop3h 14m
Lambert-St Louis
Sun 3/15
8:06 pm-10:08 pm
Nonstop4h 02m
$117
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 3/27
6:05 am-11:19 am
Nonstop3h 14m
Lambert-St Louis
Sun 3/29
8:06 pm-10:08 pm
Nonstop4h 02m
$136
San DiegoSt. Louis
SAN - STL
SANSTL
San Diego
Fri 4/24
12:36 pm-7:12 pm
1 stop28h 36m
Lambert-St Louis
Mon 4/27
8:12 pm-8:04 pm
1 stop25h 52m
$136
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Tue 3/17
7:00 am-12:15 pm
Nonstop3h 15m
Lambert-St Louis
Tue 3/24
12:14 pm-2:11 pm
Nonstop3h 57m
$137
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 4/30
3:35 pm-9:00 pm
Nonstop3h 25m
Lambert-St Louis
Sun 5/3
9:55 pm-11:37 pm
Nonstop3h 42m
$156
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 3/27
6:05 am-11:19 am
Nonstop3h 14m
Lambert-St Louis
Tue 3/31
11:27 am-11:08 pm
1 stop13h 41m
$163
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 5/14
3:35 pm-9:00 pm
Nonstop3h 25m
Lambert-St Louis
Sun 5/17
9:55 pm-11:37 pm
Nonstop3h 42m
$171
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 4/17
6:00 am-2:12 pm
1 stop6h 12m
Lambert-St Louis
Fri 4/17
9:55 pm-11:37 pm
Nonstop3h 42m
$172
San DiegoSt. Louis
SAN - STL
SANSTL
San Diego
Tue 4/7
6:25 am-9:48 am
1 stop25h 23m
Lambert-St Louis
Fri 4/10
8:16 pm-12:02 am
1 stop29h 46m
$176
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 4/3
11:56 pm-8:55 am
1 stop6h 59m
Lambert-St Louis
Sun 4/5
6:50 pm-10:56 pm
1 stop6h 06m
$187
Showing 1-10 of 60 results
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
SAN-STL
SNA-STL
SMF-STL
LAX-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
SAN-STL
SNA-STL
SMF-STL
What is the cheapest month to book a flight from California to St. Louis?
Currently, September is the cheapest month in which you can book a flight from California to St. Louis (average of $71). Flying from California to St. Louis in August is currently the most expensive (average of $206). 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 February 17, 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 15% versus a flight in the morning.
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 February 7, 2026.
Travelers seeking maximum savings on their California to St. Louis flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 February 17, 2026.
The most flights from USCA to STL are scheduled on a Tuesday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 on average).
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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus
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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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 February 17, 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 February 17, 2026.
California to St. Louis flights
Consider these flights traveling from California to St. Louis.
Top 6 airlines flying from California to St. Louis
Discover the top 6 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 February 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$130 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$136 | Average$371 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$202 | Average$397 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$246 | Average$458 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$505 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$283 | Average$453 | FlexibilityNo cancel fee | On-time63% |