Route guide · 1,589 miles
Cheap Flights from Los Angeles to St. Louis
LAX → STL · Nonstop 3h 44m · Live round-trip fares
The run from Los Angeles (LAX) to St. Louis (STL) is 1,589 miles of sky, and ticket prices on it are anything but steady. One week can cost double the next. Booking about 3–6 weeks in advance — and watching fares with a free Airfare Deal alert — is how regulars on this route keep costs down.
Live fares for LAX → STL are updating. Use the search below for real-time prices.
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Updated daily
Flight time
3h 44m
Nonstop, typical
Distance
1,589 mi
LAX → STL
Book ahead
3–6 weeks
Best window, typically
Nonstop airlines
3
American Airlines, Alaska Airlines & more
Nonstop flights from Los Angeles to St. Louis
Nonstop service links Los Angeles and St. Louis directly — flights are flown by American Airlines, Alaska Airlines, Southwest Airlines. Expect roughly 3h 44m in the air. If a nonstop is what you want, don't wait too long: booking 3–6 weeks ahead is when these seats are priced most kindly.
Booking insights: Los Angeles → St. Louis
- Distance: 1,589 miles · nonstop flight time: 3h 44m.
- Cheapest upcoming week in the live data starts around Oct 15, with fares from $188.
- Rule of thumb for this route: the sweet spot is usually 3–6 weeks before departure.
- If your dates flex by a day or two, shifting to a midweek departure is the easiest saving there is.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
Price trend
Cheapest departure weeks ahead
Near-term departures around Oct 15 are currently the cheapest on this route. Based on recent fares found for this route; prices change quickly.
Cheapest month · Los Angeles → St. Louis
October 2026
Every date's recent round-trip fare, at a glance.
Fares from
$188
Cheapest: Sat, Oct 17 — $188 · Priciest: Oct 23 — $243
Get this fare →Recent fares found for specific dates in October 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from Los Angeles to St. Louis: what you need to know
The flight
Los Angeles to St. Louis is a proper cross-country leg — 1,589 miles and around 3h 44m in the air nonstop. Download entertainment before you board, bring a full water bottle, and think about the time change: even a two-hour shift can leave you groggy if you land late and start early.
Airlines on this route
American Airlines, Alaska Airlines and Southwest Airlines fly this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Los Angeles (LAX)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Los Angeles airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in St. Louis (STL)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The St. Louis airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check St. Louis to Los Angeles fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 1,589 miles, booking 3–6 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 3h 44m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
Los Angeles to St. Louis flight FAQs
How long is the flight from LAX to STL?
Plan on about 3h 44m in the air for a nonstop from Los Angeles to St. Louis — the route runs roughly 1,589 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from Los Angeles to St. Louis?
Yes — look for American Airlines, Alaska Airlines, Southwest Airlines on this route. Nonstop seats are usually priced best 3–6 weeks before departure.
What is the cheapest month to fly from Los Angeles to St. Louis?
Fares from Los Angeles to St. Louis tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from LAX to STL?
Walking up to this route at the last minute is the expensive way to do it — prices inside 7 days of departure climb fast. The 3–6 weeks booking window is where the value sits.
What is a good round-trip deal from Los Angeles to St. Louis?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Los Angeles to St. Louis?
The main carriers on this route are American Airlines, Alaska Airlines, Southwest Airlines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Los Angeles airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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