Cheap flights from St. Louis to Los Angeles from $84

The month of January is, on average, the cheapest month to fly to Los Angeles from St. Louis, with most prices found around $373. If you aren’t able to travel during the month of January, then book flights to Los Angeles from St. Louis during February instead. Flights to Los Angeles in February, while not as cheap as those in January, still average around $376.

Our data shows that Friday is the least expensive day to fly to Los Angeles. Tickets to fly out on this day can be as low as $469. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Los Angeles on Monday is $696.

Our most recent data shows that the best time of day to fly to Los Angeles is in the evening. Flights from St. Louis to Los Angeles during this time can be as low as $406. In the morning is when there is more demand to fly to Los Angeles, so prices are often more expensive at around $578 per ticket.

Fly from Lambert-St Louis to Los Angeles for the best Lambert-St Louis - Los Angeles flight prices

You are more likely to see cheaper flights to Los Angeles from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Los Angeles for around $422 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Los Angeles from St. Louis for as low as $374 on momondo.

There are 4 cabin classes available to choose from on St. Louis to Los Angeles flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 13% on your flight if you consider stops on a St. Louis to Los Angeles flight.

As of September 2026, prices for St. Louis to Los Angeles flights are approximately 93% more expensive when compared to flights at the same time last year.

Delta and Southwest are the most popular carriers operating from Lambert-St Louis to Los Angeles

Southwest, American Airlines and Frontier are the top three most popular airlines that fly to Los Angeles from St. Louis according to our data. Southwest is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Los Angeles. Keep in mind that there are 7 different airlines that fly to Los Angeles on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $282.

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 6h 30m.

Salt Lake City (SLC) has the shortest average layover time for this route: 1h 11m.

4 flights are operational daily from St. Louis to Los Angeles as of September 2026. The most popular departure time for this route is 6:00AM, with 88% of flights per day taking off at noon.

The number of flights available between St. Louis and Los Angeles is 34 per week as of September 2026. The most frequent departure day is Mon, with 26% of weekly flights leaving on this day.