$157 Cheap Alaska Airlines flights Los Angeles (LAX) to St. Louis (STL)

View $157 flight on Wed, Sep 10, 2025Opens in a new window

$157 Cheap Alaska Airlines flights Los Angeles (LAX) to St. Louis (STL)

Prices were available within the past 7 days and start at $157 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Los Angeles (LAX) to St. Louis (STL)
Origin airport
Los Angeles Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Popular airline
Alaska Airlines
Distance
1588 mi
Average flight time
6 hours 52 mins

Frequently asked questions

How much is an Alaska Airlines flight from Los Angeles Intl. Airport (LAX) to Lambert-St. Louis Intl. Airport (STL)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap Alaska Airlines return flights from LAX to STL. Affordable one-way fares from $157 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from LAX to STL with Alaska Airlines?
January is one of the cheapest months to jet away to St. Louis with Alaska Airlines. You could also find fantastic deals on one-way and return fares in February.
What is the cheapest time to book flights from Los Angeles Intl. Airport (LAX) to Lambert-St. Louis Intl. Airport (STL) with Alaska Airlines?
Look for cheap Alaska Airlines flights from Los Angeles Intl. Airport (LAX) to Lambert-St. Louis Intl. Airport (STL) one to three months ahead of your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Alaska Airlines fly nonstop from Los Angeles Intl. Airport (LAX) to Lambert-St. Louis Intl. Airport (STL)?
To figure out if there's a direct trip from LAX to STL with Alaska Airlines or other carriers, check the "Nonstop" box when browsing for flights.
What is the earliest Alaska Airlines flight from LAX to STL?
Search Alaska Airlines's earliest flights from LAX to STL by checking the "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Alaska Airlines fly into in St. Louis?
Jump on an Alaska Airlines flight from Los Angeles Intl. Airport (LAX) to St. Louis, and you'll likely land at Lambert-St. Louis Intl. Airport (STL). This is the airline's main hub in this destination.
Why fly with Alaska Airlines from LAX to STL?
Alaska Airlines makes flying from LAX to STL more enjoyable with top-tier customer service and a rewarding loyalty program. You may even earn points with Mileage Plan. Don't forget to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Alaska Airlines flight from Los Angeles Intl. Airport (LAX) to Lambert-St. Louis Intl. Airport (STL)?
Changes are often free within 24 hours of booking, but your airline may charge a fee after that time. For further details about modifying your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you want the freedom to adjust your plans without being charged, tick the "Changes included" and "No cancel fee" filters when organizing your next getaway.

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*Available to One Key members.