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Cheap flights from Los Angeles International to St Louis

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Compare Los Angeles International to St Louis flight deals

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Flight deals from Los Angeles International to St Louis

Looking for a cheap last-minute deal or the best round-trip flight from Los Angeles International to St Louis? Find the lowest prices on one-way and round-trip tickets right here.
St Louis.C$250 per passenger.Departing Tue, Apr 29, returning Fri, May 2.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Los Angeles International on Tue, Apr 29, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departing from St Louis on Fri, May 2, arriving in Los Angeles International.Price includes taxes and charges.From C$250, select.
St Louis.C$250 per passenger.Departing Thu, May 8, returning Sat, May 10.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Los Angeles International on Thu, May 8, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departing from St Louis on Sat, May 10, arriving in Los Angeles International.Price includes taxes and charges.From C$250, select.
St Louis.C$263 per passenger.Departing Tue, Apr 29, returning Wed, Apr 30.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Los Angeles International on Tue, Apr 29, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departing from St Louis on Wed, Apr 30, arriving in Los Angeles International.Price includes taxes and charges.From C$263, select.
St Louis.C$319 per passenger.Departing Wed, Jun 4, returning Mon, Jun 9.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Los Angeles International on Wed, Jun 4, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departing from St Louis on Mon, Jun 9, arriving in Los Angeles International.Price includes taxes and charges.From C$319, select.
St Louis.C$333 per passenger.Departing Tue, May 27, returning Wed, Jun 4.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Los Angeles International on Tue, May 27, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departing from St Louis on Wed, Jun 4, arriving in Los Angeles International.Price includes taxes and charges.From C$333, select.
St Louis.C$423 per passenger.Departing Wed, Sep 10, returning Wed, Sep 17.Round-trip flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Los Angeles International on Wed, Sep 10, arriving in St Louis.Inbound direct flight with Southwest Airlines departing from St Louis on Wed, Sep 17, arriving in Los Angeles International.Price includes taxes and charges.From C$423, select.
St Louis.C$436 per passenger.Departing Tue, Aug 12, returning Wed, Sep 17.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Los Angeles International on Tue, Aug 12, arriving in St Louis.Inbound indirect flight with Southwest Airlines, departing from St Louis on Wed, Sep 17, arriving in Los Angeles International.Price includes taxes and charges.From C$436, select.
St Louis.C$451 per passenger.Departing Tue, May 27, returning Wed, Jun 4.Round-trip flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Los Angeles International on Tue, May 27, arriving in St Louis.Inbound direct flight with Southwest Airlines departing from St Louis on Wed, Jun 4, arriving in Los Angeles International.Price includes taxes and charges.From C$451, select.

When is the cheapest time to fly from Los Angeles International to St Louis?

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Los Angeles International to St Louis flights are currently cheapest in May.
Apr
from C$263
May
from C$250
Jun
from C$319
Jul
from C$458
Aug
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Sep
from C$423
Oct
from C$589
Nov
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Dec
from C$589
Jan
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Feb
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Mar
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Direct flights from Los Angeles International to St Louis

Los Angeles International to St Louis: Alternative routes

Compare routes from Los Angeles International to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Los Angeles to St Louis: Flight information

The things to know before you go.
Cheapest flight foundC$250
Cheapest month to flyMay
Average flight time3 hrs, 37 mins
Most popular airlineSouthwest Airlines
Average flights per week147

Finding cheap flights from Los Angeles International to St Louis: Frequently asked questions

The best price we found for a round-trip flight from Los Angeles International to St Louis is C$250. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 38 minutes is the average flight time from Los Angeles International to St Louis.
Southwest Airlines, Qatar Airways and Alaska Airlines fly direct from Los Angeles International to St Louis.
There are 147 flights per week flying from Los Angeles International to St Louis, as of April 2025.
The cheapest month to fly from Los Angeles International to St Louis is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Los Angeles International Airport to St Louis Airport on Thursday, May 8, 2025.
Yes – the average flight time is 3 hours and 38 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to St Louis.

Travelling from Los Angeles International Airport (LAX) to Lambert-St. Louis International Airport (STL): what you need to know

  • The average duration of a direct flight from Los Angeles International Airport to Lambert-St. Louis International Airport is 3 hours 35 minutes.

  • St Louis's timezone is UTC-5, making St Louis two hours ahead of Los Angeles.

  • Take your pick of 19 weekly Los Angeles International Airport to Lambert-St. Louis International Airport flights. The 05:00 departure with Southwest Airlines is the earliest flight you can take. Southwest Airlines operates the last service of the day at 20:20.

  • To ensure you get on your LAX to STL flight, allow plenty of time to check in and find your gate. Turning up two hours before international departures and one hour before domestic flights is the general travel rule.

  • During popular months like July, it's best to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead for international flights when you fly during a high season in general.

  • American Airlines offers direct flights from Los Angeles International Airport to Lambert-St. Louis International Airport. Book with this popular airline, then get ready to discover the sights in St Louis — and maybe even more of United States if time allows.

  • The airline that tops the list for bookings on this route is American Airlines.

  • With an impressive 81.98% of services arriving as planned, Southwest Airlines is the most punctual carrier for LAX to STL flights.

  • If you want to break up your flight, just uncheck 'Direct flights only' when searching for your ticket from Los Angeles International Airport to Lambert-St. Louis International Airport. Here are the most popular stopovers between LAX and STL:

    • Harry Reid Airport (formerly McCarran Airport)

    • Denver International Airport

    • Phoenix Sky Harbour International Airport

How to find the cheapest flights from Los Angeles International Airport (LAX) to Lambert-St. Louis International Airport (STL)

  • Right now, C$133 is the cheapest price we've found for a one-way Los Angeles International Airport to Lambert-St. Louis International Airport flight. The best price for a return plane ticket is C$250. Keep in mind that fares can change due to demand at the time of booking.

  • Get cheap tickets from LAX to STL by booking at least six months ahead. Based on our research, that's the sweet spot for finding the biggest deals.

  • May is the cheapest month for flights from Los Angeles International Airport to Lambert-St. Louis International Airport. If you'd like to fly during a different time of year, the 'Whole month' tool will give you the lowest airfares across every month.

  • Save time looking for cheap flights from LAX to STL by setting up a Price Alert. You'll receive an email or notification on the app when a lower fare becomes available.

  • Pick your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Los Angeles International Airport to Lambert-St. Louis International Airport.

Handy information about Los Angeles International Airport (LAX)

  • The address for LAX is One World Way.

  • Los Angeles International Airport scores top marks for its on-time performance. 81.05% of flights that depart LAX reach their destination without delay.

  • Central Los Angeles to Los Angeles International Airport is approximately 32 kilometres. Depending on traffic, it'll take about 30 minutes to get there if you're driving, ride-sharing or catching a cab.

  • You can expect a journey time of about 55 minutes on public transport.

  • Catching an early flight from Los Angeles International Airport to Lambert-St. Louis International Airport? Avoid the last-minute rush to the airport (and catch some extra z's) by picking one of these stays near LAX:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • The address for STL is 10701 Lambert International Blvd..

  • Lambert-St. Louis International Airport to the centre of St Louis has a drive time of around 20 minutes. It's approximately 26 kilometres away.

  • It takes around 35 minutes if you're travelling by public transport.

When to fly to Lambert-St. Louis International Airport (STL)

  • The quietest month for a flight from Los Angeles International Airport to Lambert-St. Louis International Airport is April, while July is the most popular. Pick the ideal time to go to St Louis based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Before locking in your flight from Los Angeles International Airport to Lambert-St. Louis International Airport, consider the type of weather you like. July is the warmest month in St Louis, with the temperature ranging from 17ºC (63ºF) to 33ºC (91ºF).

  • January sees average temperatures of between -8ºC (18ºF) and 7ºC (45ºF). Look for cheap tickets from LAX to STL sometime then if you'd rather travel in cooler conditions.

Explore more of United States

  • You've done St Louis, now it's time to discover other parts of United States. Journey around 418 kilometres north-east to Chicago to check off its popular sights. From Millennium Park to Art Institute of Chicago and LandShark Beer Garden at Navy Pier, there's plenty to keep you on the go.

  • Indianapolis is another well-known destination in United States and is around 370 kilometres east of St Louis. No journey is complete without dropping by The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Plan the rest of your trip from Los Angeles to St Louis

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.