$139+ Cheap flights from Los Angeles (LAX) to St. Charles, MO
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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STL
Mar 3 — Mar 101
1 adult, Economy
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Find cheap flights from Los Angeles to St. Charles with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Los Angeles to St. Charles are usually found in October or April, booked 51 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Los Angeles to St. Charles
Cheapest
Best
Last-minute
One-way
Cheapest flights from Los Angeles to St. CharlesExplore the most affordable flight options available from Los Angeles to St. Charles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 1, 2026.
Explore the most affordable flight options available from Los Angeles to St. Charles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 1, 2026.
This Frontier deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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.
Mon 2/2312:56 pm
LAX
- STL
1 stop5h 06m
Frontier
Fri 2/271:59 pm
STL
- LAX
1 stop12h 31m
Frontier
Deal found 1/31![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/2710:03 am
LAX
- STL
1 stop23h 16m
Multiple Airlines
Mon 4/68:16 pm
STL
- LAX
1 stop16h 34m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 4/58:58 pm
LAX
- STL
1 stop10h 50m
Frontier
Fri 4/108:16 pm
STL
- LAX
1 stop5h 56m
Frontier
Deal found 1/31![Frontier logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/215:18 pm
LAX
- STL
2 stops38h 31m
Frontier
Mon 3/235:46 pm
STL
- LAX
1 stop6h 02m
Frontier
Deal found 1/31![Frontier logo]()
$284
This Frontier deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/318:57 pm
LAX
- STL
1 stop10h 51m
Frontier
Sun 4/510:12 pm
STL
- LAX
1 stop11h 09m
Frontier
Deal found 1/31![Frontier logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 3/266:15 pm
LAX
- STL
2 stops13h 34m
Frontier
Thu 4/210:12 pm
STL
- LAX
1 stop11h 09m
Frontier
Deal found 1/30![Frontier logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 5/133:27 pm
LAX
- STL
2 stops25h 45m
Frontier
Sat 5/164:16 pm
STL
- LAX
1 stop18h 02m
Frontier
Deal found 1/29![Frontier logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/86:30 am
LAX
- STL
1 stop28h 20m
Multiple Airlines
Tue 2/103:49 pm
STL
- LAX
2 stops25h 23m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/67:55 pm
LAX
- STL
1 stop16h 51m
Frontier
Wed 2/113:49 pm
STL
- LAX
2 stops41h 45m
Frontier
Deal found 1/31![Frontier logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 3/279:28 pm
LAX
- STL
1 stop11h 51m
Frontier
Wed 4/18:16 pm
STL
- LAX
1 stop16h 44m
Frontier
Deal found 1/30![Frontier logo]()
$291
This CheapOair deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/67:55 pm
LAX
- STL
1 stop16h 51m
Frontier
Mon 2/99:45 pm
STL
- LAX
1 stop17h 40m
Frontier
Deal found 2/1![Frontier logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/56:26 pm
LAX
- STL
1 stop24h 22m
Multiple Airlines
Tue 2/103:49 pm
STL
- LAX
2 stops25h 23m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$293
Best flights from Los Angeles to St. CharlesDiscover carefully curated flight deals from Los Angeles to St. Charles that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 1, 2026.
Discover carefully curated flight deals from Los Angeles to St. Charles that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 1, 2026.
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 3/411:45 am
LAX
- STL
2 stops10h 40m
Delta
Tue 3/107:15 am
STL
- LAX
2 stops10h 54m
Delta
Deal found 1/30![Delta logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 4/58:58 pm
LAX
- STL
1 stop10h 50m
Frontier
Fri 4/108:16 pm
STL
- LAX
2 stops22h 00m
Frontier
Deal found 1/31![Frontier logo]()
$307
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/2611:08 am
LAX
- STL
1 stop7h 18m
United Airlines
Sun 3/16:55 pm
STL
- LAX
1 stop7h 04m
United Airlines
Deal found 1/29![United Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 4/15:15 am
LAX
- STL
1 stop7h 20m
Southwest
Mon 4/139:40 pm
STL
- LAX
Nonstop4h 05m
Southwest
Deal found 1/30![Southwest logo]()
$338
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 6/212:30 am
LAX
- STL
1 stop6h 16m
Delta
Tue 6/96:59 pm
STL
- LAX
1 stop6h 50m
Delta
Deal found 1/31![Delta logo]()
$333
This Southwest deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/65:20 am
LAX
- STL
Nonstop3h 35m
Southwest
Mon 3/99:55 pm
STL
- LAX
Nonstop4h 10m
Southwest
Deal found 1/31![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 3/146:00 am
LAX
- STL
1 stop9h 08m
Delta
Sat 3/287:15 am
STL
- LAX
2 stops10h 54m
Delta
Deal found 1/30![Delta logo]()
$333
This Southwest deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 5/145:00 am
LAX
- STL
Nonstop3h 35m
Southwest
Fri 5/159:40 pm
STL
- LAX
Nonstop4h 05m
Southwest
Deal found 1/31![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:45 am
LAX
- STL
1 stop5h 55m
Delta
Sat 7/113:50 pm
STL
- LAX
1 stop7h 13m
Delta
Deal found 2/1![Delta logo]()
$333
This Southwest deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 6/47:25 am
LAX
- STL
1 stop7h 05m
Southwest
Mon 6/89:55 pm
STL
- LAX
Nonstop3h 50m
Southwest
Deal found 1/30![Southwest logo]()
$353
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 6/311:38 am
LAX
- STL
1 stop5h 25m
Delta
Mon 6/86:59 pm
STL
- LAX
1 stop6h 50m
Delta
Deal found 1/31![Delta logo]()
$348
This Southwest deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/35:20 am
LAX
- STL
Nonstop3h 35m
Southwest
Sun 4/56:30 pm
STL
- LAX
1 stop7h 50m
Southwest
Deal found 1/30![Southwest logo]()
$353
Last-minute flights from Los Angeles to St. CharlesDiscover last-minute flight deals from Los Angeles to St. Charles. Data last updated February 1, 2026 and is based on user searches.
Discover last-minute flight deals from Los Angeles to St. Charles. Data last updated February 1, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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.
Mon 2/21:13 pm
LAX
- STL
1 stop5h 37m
Frontier
Sat 2/73:46 pm
STL
- LAX
1 stop9h 45m
Frontier
Deal found 1/31![Frontier logo]()
$297
This Priceline deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/21:13 pm
LAX
- STL
1 stop5h 37m
Frontier
Wed 2/43:46 pm
STL
- LAX
1 stop9h 45m
Frontier
Deal found 1/29![Frontier logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/41:56 pm
LAX
- STL
2 stops38h 55m
Frontier
Fri 2/67:39 pm
STL
- LAX
1 stop29h 52m
Frontier
Deal found 1/30![Frontier logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/56:26 pm
LAX
- STL
1 stop24h 22m
Multiple Airlines
Tue 2/103:49 pm
STL
- LAX
2 stops25h 23m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/67:55 pm
LAX
- STL
1 stop16h 51m
Frontier
Wed 2/113:49 pm
STL
- LAX
2 stops41h 45m
Frontier
Deal found 1/31![Frontier logo]()
$290
This CheapOair deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/67:55 pm
LAX
- STL
1 stop16h 51m
Frontier
Mon 2/99:45 pm
STL
- LAX
1 stop17h 40m
Frontier
Deal found 2/1![Frontier logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/61:54 pm
LAX
- STL
2 stops22h 52m
Frontier
Sun 2/89:32 pm
STL
- LAX
1 stop14h 53m
Frontier
Deal found 1/30![Frontier logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/61:54 pm
LAX
- STL
2 stops22h 52m
Multiple Airlines
Sun 2/89:32 pm
STL
- LAX
1 stop12h 50m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/86:30 am
LAX
- STL
1 stop28h 20m
Multiple Airlines
Tue 2/103:49 pm
STL
- LAX
2 stops25h 23m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/149:12 am
LAX
- STL
1 stop6h 34m
Multiple Airlines
Tue 2/173:49 pm
STL
- LAX
2 stops31h 16m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$291
This Frontier deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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.
Mon 2/2312:56 pm
LAX
- STL
1 stop5h 06m
Frontier
Fri 2/271:59 pm
STL
- LAX
1 stop12h 31m
Frontier
Deal found 1/31![Frontier logo]()
$281
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/2511:45 am
LAX
- STL
2 stops9h 38m
Delta
Mon 3/22:22 pm
STL
- LAX
2 stops10h 23m
Delta
Deal found 1/31![Delta logo]()
$303
One-way flights from Los Angeles to St. CharlesSearch for one-way flight options from Los Angeles to St. Charles. Find affordable one-way fares based on user searches. Data last updated February 1, 2026.
Search for one-way flight options from Los Angeles to St. Charles. Find affordable one-way fares based on user searches. Data last updated February 1, 2026.
This Southwest deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/215:15 am
LAX
- STL
Nonstop3h 25m
Southwest
Deal found 1/31![Southwest logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 4/2811:27 am
LAX
- STL
2 stops17h 23m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 4/271:19 pm
LAX
- STL
2 stops32h 00m
Frontier
Deal found 1/31![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/72:39 pm
LAX
- STL
1 stop18h 39m
Frontier
Deal found 1/29![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 4/294:17 pm
LAX
- STL
2 stops16h 13m
Frontier
Deal found 1/29![Frontier logo]()
$145
This CheapOair deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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.
Fri 2/1310:59 pm
LAX
- STL
1 stop16h 47m
Frontier
Deal found 1/29![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/121:16 pm
LAX
- STL
1 stop28h 51m
Frontier
Deal found 1/30![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” 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 2/114:40 pm
LAX
- STL
2 stops42h 29m
Frontier
Deal found 1/30![Frontier logo]()
$149
This Frontier deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 5/11:19 pm
LAX
- STL
1 stop5h 41m
Frontier
Deal found 1/31![Frontier logo]()
$150
This Frontier deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/146:20 am
LAX
- STL
1 stop5h 36m
Frontier
Deal found 1/31![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:27 am
LAX
- STL
2 stops17h 23m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$153
Find flight deals from Los Angeles to St. Charles
Keep the following information in mind while searching for Los Angeles to St. Charles flight deals. Data was last updated February 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $281 (Frontier) |
One-way from | $139 (Southwest) |
Popular in | March |
Cheapest in | October |
Average price | $397 |
Cheapflights Fare Finder
Customize your flight search to find flights from Los Angeles to St. Charles 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 1, 2026.
Use the filters below to find and compare flights from Los Angeles to St. Charles that are best for you.
Fly from
Los Angeles
Fly to
St. Charles
Route
Depart
Return
Price
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Wed 3/4
11:45 am-12:25 am
2 stops10h 40m
Lambert-St Louis
Tue 3/10
7:15 am-4:09 pm
2 stops10h 54m
$294
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Sun 4/5
8:58 pm-9:48 am
1 stop10h 50m
Lambert-St Louis
Fri 4/10
8:16 pm-4:16 pm
2 stops22h 00m
$307
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Thu 2/26
11:08 am-8:26 pm
1 stop7h 18m
Lambert-St Louis
Sun 3/1
6:55 pm-11:59 pm
1 stop7h 04m
$321
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Tue 6/2
12:30 am-8:46 am
1 stop6h 16m
Lambert-St Louis
Tue 6/9
6:59 pm-11:49 pm
1 stop6h 50m
$333
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Sat 3/14
6:00 am-5:08 pm
1 stop9h 08m
Lambert-St Louis
Sat 3/28
7:15 am-4:09 pm
2 stops10h 54m
$333
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Tue 7/7
12:45 am-8:40 am
1 stop5h 55m
Lambert-St Louis
Sat 7/11
3:50 pm-9:03 pm
1 stop7h 13m
$333
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Wed 4/1
5:15 am-2:35 pm
1 stop7h 20m
Lambert-St Louis
Mon 4/13
9:40 pm-11:45 pm
Nonstop4h 05m
$338
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Fri 3/6
5:20 am-10:55 am
Nonstop3h 35m
Lambert-St Louis
Mon 3/9
9:55 pm-12:05 am
Nonstop4h 10m
$343
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Thu 5/14
5:00 am-10:35 am
Nonstop3h 35m
Lambert-St Louis
Fri 5/15
9:40 pm-11:45 pm
Nonstop4h 05m
$343
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Wed 6/3
11:38 am-7:03 pm
1 stop5h 25m
Lambert-St Louis
Mon 6/8
6:59 pm-11:49 pm
1 stop6h 50m
$348
Showing 1-10 of 23 results
Best time to book a flight from Los Angeles to St. Charles
Have a flexible travel schedule? Discover the best time to fly to St. Charles from Los Angeles with our price prediction graph.
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 Los Angeles to St. Charles
LAX-CH5
LAX-STL
How far ahead should I book a flight from Los Angeles to St. Charles?
Use this chart to determine the optimal time to book a round-trip flight from Los Angeles to St. Charles. Price data was last updated on January 30, 2026.
The price you pay for your flight from Los Angeles to St. Charles may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Los Angeles to St. Charles?
Currently, February is the cheapest month in which you can book a flight from Los Angeles to St. Charles (average of $146). Flying from Los Angeles to St. Charles in June is currently the most expensive (average of $300). 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 LAX to CH5?
Find hourly flight availability from Los Angeles to St. Charles. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 1, 2026.
It’s typically best to fly out from Los Angeles to St. Charles in the evening. Doing so could potentially save you 14% on the flight price compared to flying at noon, which is usually more expensive.
What is the cheapest day to fly from Los Angeles to St. Charles?
Use this chart to determine the cheapest time to fly round-trip from Los Angeles to St. Charles. Price data was last updated on January 31, 2026.
Travelers seeking maximum savings on their Los Angeles to St. Charles flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Los Angeles to St. Charles
Explore weekly flight availability from Los Angeles to St. Charles. 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 1, 2026.
The most flights from LAX to CH5 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).
Reviews of airlines servicing St. Charles
Get insights into the airlines that provide service to St. Charles. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Charles. Reviews last updated February 1, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Los Angeles to St. Charles to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Los Angeles to St. Charles. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Los Angeles to St. Charles
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Los Angeles to St. Charles
Discover the top 6 airlines that operate flights from Los Angeles to St. Charles. 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 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$140 | Average$227 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$257 | Average$505 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$258 | Average$425 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$283 | Average$391 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$296 | Average$389 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$302 | Average$471 | FlexibilityNo cancel fee | On-time71% |