$114 Cheap Flights from Sacramento (SMF) to St. Louis (STL)

View $114 flight on Fri, May 9, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Sacramento to St. Louis (SMF-STL)

Prices were available within the past 7 days and start at $114 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, May 12 - Thu, May 29
SMF
Sacramento
STL
St. Louis
$208 Roundtrip, found 3 hours ago
$208
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Mon, May 12 from Sacramento to St. Louis, returning Thu, May 29, priced at $208 found 3 hours ago
Frontier Airlines
Fri, May 9 - Sat, May 10
SMF
Sacramento
STL
St. Louis
$218 Roundtrip, found 1 hour ago
$218
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, May 9 from Sacramento to St. Louis, returning Sat, May 10, priced at $218 found 1 hour ago
Frontier Airlines
Mon, May 19 - Sat, Jun 7
SMF
Sacramento
STL
St. Louis
$228 Roundtrip, found 2 days ago
$228
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, May 19 from Sacramento to St. Louis, returning Sat, Jun 7, priced at $228 found 2 days ago
Frontier Airlines
Mon, May 5 - Sat, May 10
SMF
Sacramento
STL
St. Louis
$238 Roundtrip, found 1 hour ago
$238
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, May 5 from Sacramento to St. Louis, returning Sat, May 10, priced at $238 found 1 hour ago
United
Wed, Jun 4 - Thu, Jun 5
SMF
Sacramento
STL
St. Louis
$242 Roundtrip, found 3 hours ago
$242
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Jun 4 from Sacramento to St. Louis, returning Thu, Jun 5, priced at $242 found 3 hours ago
American Airlines
Thu, Dec 11 - Tue, Dec 16
SMF
Sacramento
STL
St. Louis
$244 Roundtrip, found 4 days ago
$244
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Dec 11 from Sacramento to St. Louis, returning Tue, Dec 16, priced at $244 found 4 days ago
United
Wed, Jun 11 - Tue, Jun 17
SMF
Sacramento
STL
St. Louis
$246 Roundtrip, found 5 hours ago
$246
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Jun 11 from Sacramento to St. Louis, returning Tue, Jun 17, priced at $246 found 5 hours ago
Southwest Airlines
Sat, May 24 - Mon, Jun 2
SMF
Sacramento
STL
St. Louis
$247 Roundtrip, found 6 days ago
$247
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Sat, May 24 from Sacramento to St. Louis, returning Mon, Jun 2, priced at $247 found 6 days ago
American Airlines
Sat, Jul 19 - Tue, Jul 29
SMF
Sacramento
STL
St. Louis
$247 Roundtrip, just found
$247
Roundtrip
just found
Select American Airlines flight, departing Sat, Jul 19 from Sacramento to St. Louis, returning Tue, Jul 29, priced at $247 just found
Delta
Thu, Dec 11 - Tue, Dec 16
SMF
Sacramento
STL
St. Louis
$249 Roundtrip, found 4 days ago
$249
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Dec 11 from Sacramento to St. Louis, returning Tue, Dec 16, priced at $249 found 4 days ago

Frequently asked questions

How much does a flight from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL) cost?
You can find cheap return fares from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL) starting at $466. Grab a seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving SMF on May 16 2025 and touching down at STL. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from SMF to STL?
The cheapest flights from SMF to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
If you’re departing from Sacramento Intl. Airport (SMF), you can jump on a direct flight to Lambert-St. Louis Intl. Airport (STL) with Southwest Airlines.
What is the cheapest airline that flies from SMF to STL?
Take off from SMF to STL with Southwest Airlines. This carrier currently has the cheapest one-way ticket on this route, starting from $177. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SMF on June 3 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
On average, you can take your pick of 3 nonstop flights departing from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL) each week. If you can’t find one that works for your schedule, think about hopping on a flight with a layover. Filter your search results on Expedia to include one or two stops and choose the next best alternative.
What are the most popular departure times for flights from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
More passengers fly between SMF and STL at 12 PM than at any other time. Rather skip the crowds? Pick a flight outside the busiest times and you’re likely to save on your fare as well.
What day of the week has the most flights from SMF to STL?
If you jet off on a Friday, you’ll get the biggest range of options for flights from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL).
What is the earliest flight from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
The earliest flight jetting off from Sacramento Intl. Airport (SMF) is at around 12:45PM UTC-8. Catch this flight and you’ll reach Lambert-St. Louis Intl. Airport (STL) at approximately 6:25PM UTC-6. The total flight duration is 3h 40m.
How long does it take to fly from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
Flights from SMF to STL have an average travel time of 3 hours and 40 minutes. The total distance between the two airports is 1,700 mi.
What airline has the least delays from SMF to STL?
Consider traveling with Southwest Airlines if you’d like to go straight from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL) without any delays. This airline has the strongest track record for punctuality, with an on-time performance of 82%. Want to get notified of any changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
To land at Lambert-St. Louis Intl. Airport (STL) without delays, choose a flight that leaves from Sacramento Intl. Airport (SMF) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for St. Louis from Sacramento Intl. Airport (SMF)?
Explore your flight options from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL). This is the only airport in St. Louis you can arrive at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until just before your trip to book a ticket from SMF to STL generally means paying more. Although you may find some last-minute discounts, they’re not always guaranteed. Keep your travel plans flexible for the best chance of snagging a bargain.
Is it cheaper to book a SMF to STL flight and hotel package?
Compared with arranging flights and hotels separately, booking a SMF to STL flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place will take the stress out of planning your trip. Just pick your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Sacramento Intl. Airport (SMF) to Lambert-St. Louis Intl. Airport (STL)?
Usually, it’s possible to cancel or reschedule your SMF to STL flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find more details on our Customer Service portal.
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