$164 Cheap American Airlines flights Sacramento (SMF) to St. Louis (STL)

View $164 flight on Tue, Apr 14, 2026Opens in a new window
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$164 Cheap American Airlines flights Sacramento (SMF) to St. Louis (STL)

Prices were available within the past 7 days and start at $164 for one-way flights and $305 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Jan 25 - Wed, Jan 28
SMF
Sacramento
STL
St. Louis
$305 Roundtrip, found 2 hours ago
$305
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sun, Jan 25 from Sacramento to St. Louis, returning Wed, Jan 28, priced at $305 found 2 hours ago
American Airlines
Tue, Apr 14 - Mon, Apr 20
SMF
Sacramento
STL
St. Louis
$327 Roundtrip, just found
$327
Roundtrip
just found
Select American Airlines flight, departing Tue, Apr 14 from Sacramento to St. Louis, returning Mon, Apr 20, priced at $327 just found

Find the cheapest month to fly from Sacramento (SMF) to St. Louis (STL)

October is typically the cheapest month to fly

From $202 - $511 per traveler.

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $371
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $371
Flights from Sacramento (SMF) to St. Louis (STL)
Origin airport
Sacramento Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
American Airlines
Distance
1674 mi
Average flight time
7 hours 8 mins

Frequently asked questions

How much is an American Airlines flight from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
Landing cheap one-way American Airlines flights from SMF to STL from $164 on Expedia is a breeze — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from $305 for your next exciting adventure.**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 SMF to STL with American Airlines?
American Airlines flights to St. Louis are usually cheaper in the quieter months of January and February. Whether you're in search of a one-way or round-trip ticket, you could score a better deal then.
What is the cheapest time to book flights from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL) with American Airlines?
To find cheap American Airlines fares from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall price. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**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 American Airlines fly nonstop from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
To find out if there's a direct route from SMF to STL with American Airlines or other airlines, use our "Nonstop" filter when looking for flights.
What is the earliest American Airlines flight from SMF to STL?
To find the earliest departures from SMF to STL with American Airlines, filter your results by "Morning" and "Early Morning." Choosing an early flight usually means you're less likely to experience 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 American Airlines fly into in St. Louis?
Catch an American Airlines flight from Sacramento Intl. Airport (SMF) to St. Louis, and you'll most likely arrive at Lambert-St. Louis Intl. Airport (STL). This is the airline's main hub in this destination.
Can I change or cancel my American Airlines flight from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
You can usually reschedule or cancel your flight, although there may be a charge if you booked more than 24 hours ago. Need flexible options? Make use of Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge you extra if you need to alter your plans. To update your booking, go to "Trips," select your flight and click on "Manage Booking" for further information.
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