$95 Find Cheap Flights from Los Angeles to St. Charles

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Los Angeles to St. Charles departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flight Deals from Los Angeles to St. Charles (LAX-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Los Angeles to St. Charles that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Los Angeles to St. Charles

KAYAK's recommended round-trip deals from the most popular airlines that fly from Los Angeles to St. Charles.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
4:59 pm - 12:06 amLAX-STL
29h 07m1 stop
Frontier Logo
9:55 pm - 7:50 pmSTL-LAX
23h 55m1 stop
$181Frontier
Find Deal
Wed, May 14 - Fri, May 16
Frontier Logo
4:59 pm - 12:06 amLAX-STL
29h 07m1 stop
Frontier Logo
9:55 pm - 5:48 pmSTL-LAX
21h 53m1 stop
$185Frontier
Find Deal
Wed, May 14 - Fri, May 16
American Airlines Logo
5:29 pm - 11:04 pmLAX-STL
3h 35mnonstop
American Airlines Logo
6:52 am - 8:58 amSTL-LAX
4h 06mnonstop
$305American Airlines
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Wed, May 21 - Sun, May 25
American Airlines Logo
5:29 pm - 11:04 pmLAX-STL
3h 35mnonstop
American Airlines Logo
6:52 am - 8:58 amSTL-LAX
4h 06mnonstop
$306American Airlines
Find Deal
Sun, May 25 - Tue, Jun 3
Southwest Logo
7:05 am - 12:50 pmLAX-STL
3h 45mnonstop
Southwest Logo
5:25 pm - 10:10 pmSTL-LAX
6h 45m1 stop
$315Southwest
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Sun, May 25 - Wed, May 28
United Airlines Logo
12:56 am - 10:39 amLAX-STL
7h 43m1 stop
United Airlines Logo
1:42 pm - 5:18 pmSTL-LAX
5h 36m1 stop
$325United Airlines
Find Deal
Sat, May 24 - Wed, May 28
Southwest Logo
7:00 am - 3:15 pmLAX-STL
6h 15m1 stop
Southwest Logo
2:40 pm - 8:35 pmSTL-LAX
7h 55m2 stops
$330Southwest
Find Deal
Sun, May 25 - Tue, Jun 3
Delta Logo
12:50 am - 10:47 amLAX-STL
7h 57m1 stop
Delta Logo
11:32 am - 5:30 pmSTL-LAX
7h 58m1 stop
$332Delta
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Mon, Jun 2 - Sat, Jun 7
United Airlines Logo
2:01 pm - 10:45 pmLAX-STL
6h 44m1 stop
United Airlines Logo
9:10 am - 12:49 pmSTL-LAX
5h 39m1 stop
$337United Airlines
Find Deal
Mon, Jun 9 - Tue, Jun 10
Delta Logo
12:50 am - 10:52 amLAX-STL
8h 02m1 stop
Delta Logo
6:00 am - 11:26 amSTL-LAX
7h 26m1 stop
$342Delta
Find Deal
Fri, May 23 - Sun, Jun 1
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Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$95
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Los Angeles to St. Louis

When to book flights from Los Angeles to St. Charles

Are your dates flexible? Find out the best times to travel from Los Angeles to St. Charles based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Los Angeles to St. Charles

  • Which airports will I be using when flying from Los Angeles to St. Charles?

    When flying out of Los Angeles you’ll be using Los Angeles. St. Charles does not have its own airport so you’ll be flying into nearby Lambert-St Louis airport, which is 7.2 mi away.

  • How long does a flight from Los Angeles to St. Charles take?

    Direct flights cover the 1,588 miles separating Los Angeles and St. Charles in about 3h 26m.

  • How many flights are there between Los Angeles and St. Charles?

    15 direct flights run between Los Angeles and St. Charles on a daily basis. On average, there are about 107 departures each week.

  • What’s the cheapest day of the week to fly between Los Angeles and St. Charles?

    Consider leaving on a Wednesday and avoid Saturdays if you are looking for the best rates. For your return to Los Angeles, you’ll find the best rates on Sundays and the most expensive ones on Wednesdays.

  • How does KAYAK find such low prices on flights from Los Angeles to St. Charles?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Los Angeles to St. Charles.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Los Angeles to St. Charles?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Charles from Los Angeles is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Los Angeles to St. Charles?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Charles with an airline and back to Los Angeles with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Los Angeles to St. Charles?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Charles from Los Angeles up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Los Angeles to St. Charles?

    In the last 72 hours, the cheapest one-way ticket between Los Angeles and St. Charles found on KAYAK was with Frontier for $95. Frontier offered a round-trip connection from $181 and American Airlines from $305.

Top tips for finding cheap flights from Los Angeles to St. Charles

  • There is no airport in St. Charles. Instead, you’ll be flying into St. Louis Lambert Airport when flying between Los Angeles and St. Charles.
  • The cheapest flight from Los Angeles to St. Charles was found 60 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is August.

Top 5 airlines serving Los Angeles to St. Charles

Need help choosing which airline to fly with from Los Angeles to St. Charles? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4294 reviews
7.6Entertainment
7.1Food
8.6Crew
8.0Comfort
8.2Boarding
Airline reviews

It was a perfect flight in all aspects! Both legs!

10.0 ExcellentAnonymous, Apr 2025LGB - SMF
Read more Southwest reviews

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

It was 2 hours 45 minutes late, for no apparently clear reason.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

Crew was great flight was great baggage claim was a failure. It took over 1 hour for bags to arrive. Poor communication poor effort when I spoke to the supervisor about the delay

Everything was great except the food. The pretzels are really crappy.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Delta flight was on time, seats were comfortable, and crew was nice.

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Seats were comfortable. It’s was so cold and very uncomfortable. I paid 2000 miles for wifi service that was choppy the whole flight. Would like to be reimbursed for my miles Food was so disappointing. Three cold and terrible meals for $3000 round trip. This needs to be better.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

Smooth flight. As always dinner could have been more generous. Breakfast was great.

Old and out of date plane, it seem like every time I fly with united there’s and issue. We were delayed,

We took off an hour late due to arrival airport not having enough gates. That was followed by 1:30 wait to get our bags delivered for the entire flight.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

DO NOT BOOK THROUGH AMERICAN AIRLINES IF YOU HAVE ANY ADDITIONAL NEEDS. Great flight, crew etc. it wasn’t full so had space to stretch out Only downside was there was no GF option for my partner. We booked through American and it was a Qantas flight so despite contacting both airlines to confirm, she didn’t have a gluten free meal for the 16 hour flight (nor the flight in the other direction). The flight attendants did their best to accommodate but it was not super substantial.

Improvements in communication and empathy are absolutely necessary for American Airlines staff (top down). It’s like they are numb to the needs of their customers.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

It was a redeye flight, so every passenger just wanted to sleep, but through the entire flight, the flight crew made announcements over the loudspeaker at maximum volume every few minutes making sleep impossible. For example: it’s 2am, and the crew decides to give an extremely detailed announcement about snacks and beverages for sale. And 3am is the perfect time to wake up everyone with a lengthy announcement about how to get a coffee refill and how to take advantage of new offer from frontier for a credit card.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

Everything you need to know for your flight from Los Angeles to St. Charles

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