St. Louis

$72+ Cheap flights from Sacramento to St. Louis (SMF - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — STL
Feb 1 — Feb 81
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Find cheap flights from Sacramento to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from Sacramento Intl to Lambert-St Louis are usually found in February or January, booked 48 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from Sacramento to St. Louis

Best flights from Sacramento to St. Louis
Discover carefully curated flight deals from Sacramento to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 2, 2026.

This Delta deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2611:45 amSMF - STL
2 stops10h 40mDelta
Mon 3/22:22 pmSTL - SMF
2 stops9h 27mDelta
Deal found 12/31$273
This Kiwi.com deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/151:23 pmSMF - STL
1 stop27h 09mFrontier
Sat 1/173:43 pmSTL - SMF
2 stops21h 07mFrontier
Deal found 1/1$291
This Alaska Airlines deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/277:59 pmSMF - STL
1 stop15h 55mAlaska Airlines
Tue 2/102:50 pmSTL - SMF
1 stop7h 13mAlaska Airlines
Deal found 1/1$323
This Southwest deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/182:35 pmSMF - STL
1 stop5h 45mSouthwest
Sat 2/216:10 amSTL - SMF
1 stop6h 35mSouthwest
Deal found 1/1$323
This United Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/68:50 amSMF - STL
1 stop6h 09mUnited Airlines
Sun 3/85:15 amSTL - SMF
1 stop6h 21mUnited Airlines
Deal found 12/31$327
This Delta deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/276:25 pmSMF - STL
2 stops13h 14mDelta
Tue 2/106:10 amSTL - SMF
2 stops10h 12mDelta
Deal found 1/1$274
This Southwest deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:30 amSMF - STL
1 stop6h 50mSouthwest
Wed 2/185:55 amSTL - SMF
1 stop6h 25mSouthwest
Deal found 1/1$323
This Delta deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1711:45 amSMF - STL
2 stops9h 38mDelta
Wed 2/183:40 pmSTL - SMF
1 stop7h 18mDelta
Deal found 1/1$300
This Alaska Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/241:16 pmSMF - STL
1 stop22h 38mAlaska Airlines
Tue 1/272:50 pmSTL - SMF
1 stop22h 33mAlaska Airlines
Deal found 12/31$332
This Delta deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/141:05 pmSMF - STL
1 stop6h 30mDelta
Wed 1/286:10 amSTL - SMF
2 stops13h 20mDelta
Deal found 1/1$325

Find flight deals from Sacramento to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Sacramento (SMF) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 2, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$273
(Delta)

One-way from

$72
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$326
Provider with most accurate pricing for Sacramento Intl-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for Sacramento Intl-Lambert-St Louis flights.
From Sacramento Intl to Lambert-St Louis
One-way flight from Sacramento Intl to Lambert-St Louis
Highest demand for flights based on searches. 4% potential increase in price ($21 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in January 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sacramento to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2026.
Use the filters below to find and compare flights from Sacramento to St. Louis that are best for you.

Fly from

Sacramento

Fly to

St. Louis

Route

Depart

Return

Price

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 2/26

11:45 am-12:25 am

2 stops10h 40m

Lambert-St Louis

Mon 3/2

2:22 pm-9:49 pm

2 stops9h 27m

$273

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 1/27

6:25 pm-9:39 am

2 stops13h 14m

Lambert-St Louis

Tue 2/10

6:10 am-2:22 pm

2 stops10h 12m

$274

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 1/15

1:23 pm-6:32 pm

1 stop27h 09m

Lambert-St Louis

Sat 1/17

3:43 pm-10:50 am

2 stops21h 07m

$291

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 2/17

11:45 am-11:23 pm

2 stops9h 38m

Lambert-St Louis

Wed 2/18

3:40 pm-8:58 pm

1 stop7h 18m

$300

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 1/27

7:59 pm-1:54 pm

1 stop15h 55m

Lambert-St Louis

Tue 2/10

2:50 pm-8:03 pm

1 stop7h 13m

$323

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 2/18

2:35 pm-10:20 pm

1 stop5h 45m

Lambert-St Louis

Sat 2/21

6:10 am-10:45 am

1 stop6h 35m

$323

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 2/17

5:30 am-2:20 pm

1 stop6h 50m

Lambert-St Louis

Wed 2/18

5:55 am-10:20 am

1 stop6h 25m

$323

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 1/14

1:05 pm-9:35 pm

1 stop6h 30m

Lambert-St Louis

Wed 1/28

6:10 am-5:30 pm

2 stops13h 20m

$325

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 3/6

8:50 am-4:59 pm

1 stop6h 09m

Lambert-St Louis

Sun 3/8

5:15 am-9:36 am

1 stop6h 21m

$327

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 1/24

1:16 pm-1:54 pm

1 stop22h 38m

Lambert-St Louis

Tue 1/27

2:50 pm-11:23 am

1 stop22h 33m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 17 results
1
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Compare providers for flights from Sacramento to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sacramento to St. Louis in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sacramento-St. Louis flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Sacramento-St. Louis flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Sacramento-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sacramento-St. Louis flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sacramento-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sacramento to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Sacramento with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sacramento to St. Louis

How far ahead should I book a flight from Sacramento to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Sacramento to St. Louis. Price data was last updated on December 26, 2025.

Booking 43 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sacramento to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Sacramento to St. Louis?

Currently, February is the cheapest month in which you can book a flight from Sacramento to St. Louis (average of $91). Flying from Sacramento to St. Louis in July is currently the most expensive (average of $256). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SMF to STL?

Find hourly flight availability from Sacramento to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 2, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sacramento to St. Louis as you normally would.

The best insider tips for Sacramento to St. Louis flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Sacramento to St. Louis trip
Airports
SMF

For weekday morning flights, expect longer security lines at SMF, especially on Mondays. Arrive early to avoid delays.

STL

Use the MetroLink light rail from STL for a convenient and economical ride to downtown St. Louis.

Our travel experts
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more
Matt Meltzer

Matt Meltzer

Expert on SMF

Matt Meltzer

Matt Meltzer

Matt Meltzer has been a travel writer for over a decade, covering U.S. domestic locations and hotels for Thrillist, Fifty Grande, Matador Network, Conde Nast Traveler, and other top publications. He's won multiple travel journalism awards from the Society of American Travel Writers and North American Travel Journalists Association, and currently resides in South Florida.

Read more

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated January 2, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Sacramento to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Sacramento to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How popular is this Sacramento to St. Louis flight route?

  • How long is the flight from Sacramento to St. Louis?

    Delta and Frontier can get you from Sacramento to St. Louis in just under 10h 40m. Your travel time can differ by up to 16h 29m. The distance from Sacramento to St. Louis is about 1673 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Sacramento to St. Louis round-trip?

    Cheapflights users have booked flights from Sacramento to St. Louis round-trip from $226. Other airlines that can offer you cheap pricing are United Airlines, from $246, and Delta, from $256. American Airlines is 45% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Sacramento to St. Louis one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $75. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Sacramento to St. Louis for a low price.

  • What are the cheapest flights from Sacramento to St. Louis?

    The cheapest flight price from Sacramento to St. Louis is $105. On average you can expect to pay $427. The most popular route, (Sacramento Intl - Lambert-St Louis), can usually be booked for $248.

  • Can I find deals for flights from Sacramento to St. Louis that include hotel bookings?

    Yes. In addition to deals on Sacramento to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sacramento to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sacramento to St. Louis.

  • Can I find deals for business class flights from Sacramento to St. Louis?

    Yes. Cheapflights offers flight deals from Sacramento to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sacramento to St. Louis?

    Currently, February is the cheapest month in which you can book a flight from Sacramento to St. Louis (average of $91). Flying from Sacramento to St. Louis in July is currently the most expensive (average of $256). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Sacramento to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Sacramento to St. Louis

Discover the top 4 airlines that operate flights from Sacramento to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$226Average$335FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$416FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$334FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$337Average$550FlexibilityNo cancel feeOn-time63%

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