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$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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — STL
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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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 Wednesday

Cheap 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 8, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$194
(Kiwi.com)

One-way from

$72
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$351
Provider with most accurate pricing for Sacramento Intl-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sacramento Intl-Lambert-St Louis flights.
Search Deals
From Sacramento Intl to Lambert-St Louis
Search Deals
One-way flight from Sacramento Intl to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Sacramento to St. Louis

Cheapest flights from Sacramento to St. Louis
Explore the most affordable flight options available from Sacramento to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Sun 3/110:53 amSMF - STL
1 stop24h 16mFrontier
Sun 3/158:06 pmSTL - SMF
1 stop13h 52mFrontier
Deal found 1/7$194
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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 4/2110:00 amSMF - STL
1 stop11h 59mAlaska Airlines
Tue 4/284:46 pmSTL - SMF
1 stop7h 22mAlaska Airlines
Deal found 1/7$233
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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.
Fri 1/301:16 pmSMF - STL
1 stop7h 30mAlaska Airlines
Sat 2/76:19 pmSTL - SMF
1 stop21h 46mAlaska Airlines
Deal found 1/7$240
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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.
Thu 2/261:17 pmSMF - STL
1 stop8h 42mAlaska Airlines
Mon 3/27:00 amSTL - SMF
1 stop9h 00mAlaska Airlines
Deal found 1/7$247
This Southwest deal was found by Cheapflights users on 1/7. 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 4/215:15 amSMF - STL
1 stop7h 35mSouthwest
Tue 4/287:10 amSTL - SMF
2 stops8h 05mSouthwest
Deal found 1/7$248
This Delta deal was found by Cheapflights users on 1/7. 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 stops9h 38mDelta
Mon 3/22:22 pmSTL - SMF
2 stops9h 27mDelta
Deal found 1/7$254
This Delta deal was found by Cheapflights users on 1/6. 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.
Mon 2/26:25 pmSMF - STL
2 stops13h 09mDelta
Wed 2/45:04 pmSTL - SMF
1 stop8h 12mDelta
Deal found 1/6$258
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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.
Mon 1/265:03 pmSMF - STL
1 stop18h 51mAlaska Airlines
Fri 1/302:50 pmSTL - SMF
1 stop22h 33mAlaska Airlines
Deal found 1/6$260
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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.
Fri 4/36:00 amSMF - STL
1 stop7h 20mAlaska Airlines
Mon 4/64:20 pmSTL - SMF
2 stops18h 46mAlaska Airlines
Deal found 1/8$263
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Fri 3/64:41 pmSMF - STL
1 stop15h 08mFrontier
Sun 3/89:22 pmSTL - SMF
2 stops20h 34mFrontier
Deal found 1/7$264
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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.
Wed 1/289:00 amSMF - STL
1 stop26h 54mAlaska Airlines
Sat 1/316:19 pmSTL - SMF
1 stop27h 44mAlaska Airlines
Deal found 1/6$268
This United Airlines deal was found by Cheapflights users on 1/6. 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.
Mon 2/211:21 amSMF - STL
1 stop8h 39mUnited Airlines
Wed 2/42:45 pmSTL - SMF
1 stop8h 18mUnited Airlines
Deal found 1/6$271

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 8, 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

Sun 3/1

10:53 am-1:09 pm

1 stop24h 16m

Lambert-St Louis

Sun 3/15

8:06 pm-7:58 am

1 stop13h 52m

$194

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 4/3

6:00 am-11:59 pm

1 stop15h 59m

Lambert-St Louis

Mon 4/6

4:20 pm-6:02 pm

1 stop27h 42m

$247

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sun 3/1

6:00 am-11:59 pm

1 stop15h 59m

Lambert-St Louis

Mon 3/9

2:47 pm-2:00 pm

1 stop25h 13m

$247

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 4/21

5:15 am-2:50 pm

1 stop7h 35m

Lambert-St Louis

Tue 4/28

7:10 am-1:15 pm

2 stops8h 05m

$248

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 4/21

11:12 am-12:22 am

2 stops11h 10m

Lambert-St Louis

Tue 4/28

12:23 pm-9:03 pm

2 stops10h 40m

$254

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

7:00 am-5:28 pm

2 stops12h 28m

$254

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 1/28

9:00 am-1:54 pm

1 stop26h 54m

Lambert-St Louis

Sat 1/31

6:19 pm-12:22 pm

2 stops20h 03m

$273

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 1/30

9:00 am-10:46 pm

1 stop11h 46m

Lambert-St Louis

Mon 2/2

2:50 pm-11:23 am

1 stop22h 33m

$285

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 2/12

6:00 am-11:59 pm

1 stop15h 59m

Lambert-St Louis

Mon 2/16

7:00 am-11:56 pm

1 stop18h 56m

$301

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 4/7

6:00 am-2:51 pm

1 stop6h 51m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 17 results
1
2

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 January 2, 2026.

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 8, 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.

Read more about SMFBy Matt Meltzer
STL

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

Read more about STLBy Taryn White
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 8, 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.
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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.
Delta
7.9
Good
8,025 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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.
United Airlines
7.4
Good
9,139 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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.
American Airlines
7.2
Good
11,095 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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?

    Within the past month, 18 users have taken a look at flights from Sacramento Intl to Lambert-St Louis.

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

    Frontier, Alaska Airlines, and Southwest can get you from Sacramento to St. Louis in just under 7h 35m. Your travel time can differ by up to 16h 41m. 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 $127. On average you can expect to pay $430. The most popular route, (Sacramento Intl - Lambert-St Louis), can usually be booked for $243.

  • 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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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 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$226Average$335FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$416FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$335FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$337Average$549FlexibilityNo cancel feeOn-time63%

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