Expect security screening at STL to take 5-10 minutes during off-peak times. Check real-time wait times online before heading to the airport.

Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $192 (Kiwi.com) |
One-way from | $112 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $406 |
Good round-trip deal | $342 or less |
Good one-way deal | $172 or less |
Fly from
Fly to
Route
Depart
Return
Price
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Sat 1/3
6:35 pm-12:49 am
1 stop8h 14m
Los Angeles
Mon 1/5
12:30 am-10:52 am
1 stop8h 22m
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Mon 12/22
6:00 am-8:10 am
Nonstop4h 10m
Los Angeles
Wed 1/7
11:35 am-5:10 pm
Nonstop3h 35m
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Sat 1/24
10:25 am-12:45 pm
Nonstop4h 20m
Los Angeles
Sun 1/25
5:50 am-11:30 am
Nonstop3h 40m
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Wed 1/21
10:25 am-12:45 pm
Nonstop4h 20m
Los Angeles
Sun 1/25
5:50 am-11:30 am
Nonstop3h 40m
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Tue 12/9
12:49 pm-8:43 pm
2 stops9h 54m
Los Angeles
Tue 12/16
7:40 am-7:10 pm
2 stops9h 30m
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Sat 12/13
6:00 am-3:29 pm
2 stops11h 29m
Los Angeles
Wed 12/17
11:40 am-1:01 am
2 stops11h 21m
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Sat 12/6
6:00 am-4:54 pm
2 stops12h 54m
Los Angeles
Wed 12/10
11:40 am-1:01 am
2 stops11h 21m
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Thu 12/11
3:23 pm-11:59 pm
1 stop10h 36m
Los Angeles
Mon 12/15
9:24 am-11:59 pm
1 stop12h 35m
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Fri 1/16
9:45 am-2:40 pm
1 stop6h 55m
Los Angeles
Tue 1/20
11:35 am-5:10 pm
Nonstop3h 35m
St. LouisLos Angeles
STL - LAX
STLLAX
Lambert-St Louis
Fri 12/12
6:00 am-3:29 pm
2 stops11h 29m
Los Angeles
Tue 12/16
7:40 am-7:10 pm
2 stops9h 30m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
The price you pay for your flight from St. Louis to Los Angeles may vary depending on when you book. For the best chance of a lower fare, look to book 58 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, January is the cheapest month in which you can book a flight from St. Louis to Los Angeles (average of $94). Flying from St. Louis to Los Angeles in August is currently the most expensive (average of $263). 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.
It’s optimal to fly from St. Louis to Los Angeles at noon. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight in the morning.
Travelers seeking maximum savings on their St. Louis to Los Angeles flight should consider departing on Friday at noon when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Atlanta (ATL) – chosen by Cheapflights users on 50% of 1-stop itineraries from St. Louis to Los Angeles on Cheapflights.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 34m.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 34m.
Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 4h 49m.
Food
Comfort
Boarding
Overall
Crew
Entertainment
Reviews
Walter,Aug 2025
OAK - SAN
Food
Comfort
Boarding
Overall
Crew
Entertainment
Reviews
Walter,Aug 2025
OAK - SAN
Food
Comfort
Boarding
Overall
Crew
Entertainment
Reviews
Walter,Aug 2025
OAK - SAN
Food
Comfort
Boarding
Overall
Crew
Entertainment
Reviews
Walter,Aug 2025
OAK - SAN
Food
Comfort
Boarding
Overall
Crew
Entertainment
Reviews
Walter,Aug 2025
OAK - SAN
Food
Comfort
Boarding
Overall
Crew
Entertainment
Reviews
Walter,Aug 2025
OAK - SAN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$94 | Average$201 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$172 | Average$173 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$256 | Average$374 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$262 | Average$388 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$279 | Average$419 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$424 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$531 | FlexibilityNo cancel fee | On-time75% |