HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$88+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — STL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Sacramento Intl to Lambert-St Louis are usually found in January or February, booked 26 days in advance, depart on a Wednesday or Tuesday and return on a Friday

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 September 17, 2025.

Round-trip from

$183
(American Airlines)

One-way from

$88
(Booking.com)

Popular in

July

Cheapest in

January

Average price

$436
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. 10% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:16 pmSMF - STL
1 stop6h 38mAmerican Airlines
Sat 10/188:42 amSTL - SMF
1 stop7h 44mAmerican Airlines
Deal found 9/15$183
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 11/125:00 amSMF - STL
1 stop5h 39mUnited Airlines
Fri 11/141:35 pmSTL - SMF
2 stops9h 03mUnited Airlines
Deal found 9/14$188
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:21 pmSMF - STL
1 stop18h 46mFrontier
Sun 10/267:52 pmSTL - SMF
1 stop17h 34mFrontier
Deal found 9/16$212
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/231:05 pmSMF - STL
1 stop6h 55mUnited Airlines
Sat 10/256:30 amSTL - SMF
1 stop7h 18mUnited Airlines
Deal found 9/15$248
This Delta deal was found by Cheapflights users on 9/15. 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 10/1310:30 pmSMF - STL
1 stop7h 35mDelta
Sat 10/183:59 pmSTL - SMF
1 stop8h 14mDelta
Deal found 9/15$257
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 11/57:00 amSMF - STL
1 stop6h 49mUnited Airlines
Sat 11/81:35 pmSTL - SMF
1 stop5h 55mUnited Airlines
Deal found 9/15$273
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2912:06 pmSMF - STL
1 stop19h 00mFrontier
Thu 10/27:55 pmSTL - SMF
1 stop17h 18mFrontier
Deal found 9/15$274
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/1610:34 amSMF - STL
2 stops9h 26mUnited Airlines
Tue 10/215:28 pmSTL - SMF
1 stop7h 15mUnited Airlines
Deal found 9/15$277
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/154:07 pmSMF - STL
1 stop5h 51mUnited Airlines
Sat 10/181:40 pmSTL - SMF
2 stops11h 30mUnited Airlines
Deal found 9/15$278
This Delta deal was found by Cheapflights users on 9/16. 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 11/126:32 pmSMF - STL
2 stops12h 23mDelta
Sat 11/156:00 amSTL - SMF
2 stops11h 50mDelta
Deal found 9/16$282

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 September 17, 2025.
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

Wed 10/15

3:16 pm-11:54 pm

1 stop6h 38m

Lambert-St Louis

Sat 10/18

8:42 am-2:26 pm

1 stop7h 44m

$183

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 11/12

8:49 am-4:28 pm

1 stop5h 39m

Lambert-St Louis

Fri 11/14

4:43 pm-10:45 pm

1 stop8h 02m

$183

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 3/3

2:05 pm-11:56 pm

1 stop7h 51m

Lambert-St Louis

Wed 3/4

7:00 am-1:13 pm

1 stop8h 13m

$240

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 10/31

6:15 am-3:31 pm

1 stop7h 16m

Lambert-St Louis

Mon 11/10

5:12 pm-10:58 pm

1 stop7h 46m

$257

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 11/5

2:00 pm-11:07 pm

1 stop7h 07m

Lambert-St Louis

Sun 11/9

7:47 pm-11:57 pm

1 stop6h 10m

$257

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Mon 10/13

10:30 pm-8:05 am

1 stop7h 35m

Lambert-St Louis

Sat 10/18

3:59 pm-10:13 pm

1 stop8h 14m

$257

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 2/20

2:05 pm-11:56 pm

1 stop7h 51m

Lambert-St Louis

Mon 2/23

7:00 am-1:13 pm

1 stop8h 13m

$272

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 11/5

7:00 am-3:49 pm

1 stop6h 49m

Lambert-St Louis

Sat 11/8

1:35 pm-5:30 pm

1 stop5h 55m

$273

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 3/3

2:05 pm-11:56 pm

1 stop7h 51m

Lambert-St Louis

Wed 3/4

7:00 am-1:13 pm

1 stop8h 13m

$273

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 10/16

10:34 am-10:00 pm

2 stops9h 26m

Lambert-St Louis

Tue 10/21

5:28 pm-10:43 pm

1 stop7h 15m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 21 results
1
2
3

The best insider tips for Sacramento to St. Louis flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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

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 September 12, 2025.

Booking 26 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, August is the cheapest month in which you can book a flight from Sacramento to St. Louis (average of $311). Flying from Sacramento to St. Louis in March is currently the most expensive (average of $356). 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 September 17, 2025.

One of the essential ways to save on airfare from Sacramento to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 32% on airfare.

What is the cheapest day to fly from Sacramento to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Sacramento to St. Louis. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Sacramento to St. Louis flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 17, 2025.
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
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • What airports do I use to fly from Sacramento to St. Louis?

    If you wish to fly to St. Louis from Sacramento, then you need to book flights from Sacramento Intl to Lambert-St Louis. There is 1 flight from Sacramento Intl (SMF) to Lambert-St Louis (STL) per day to choose from. Flights to St. Louis from Sacramento Intl are available from 5 different airlines, which means you should have some options if you want to compare airfare deals. 3h 40m is how long a nonstop flight from Sacramento to Lambert-St Louis typically takes.

  • How popular is this Sacramento to St. Louis flight route?

    Within the past month, 17 users have taken a look at flights from Sacramento Intl to Lambert-St Louis.

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

    American Airlines, United Airlines, and Alaska Airlines can get you from Sacramento to St. Louis in just under 5h 39m. Your travel time can differ by up to 2h 12m. 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 $92. Other airlines that can offer you cheap pricing are American Airlines, from $216, and United Airlines, from $246. Frontier is 75% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest flight price from Sacramento to St. Louis is $95. On average you can expect to pay $330. The most popular route, (Sacramento Intl - Lambert-St Louis), can usually be booked for $183.

  • 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, August is the cheapest month in which you can book a flight from Sacramento to St. Louis (average of $311). Flying from Sacramento to St. Louis in March is currently the most expensive (average of $356). 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sacramento to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Kansas City flights
Los Angeles to St. Louis flights
San Francisco to St. Louis flights
San Francisco to Kansas City flights
Ontario to Kansas City flights
San Diego to Kansas City flights
Los Angeles to Springfield flights
Santa Ana to Kansas City flights
Las Vegas to Kansas City flights
Ontario to St. Louis flights
Las Vegas to St. Louis flights
Ontario to Springfield flights
Burbank to St. Louis flights
Santa Ana to Springfield flights
Burbank to Kansas City flights
Sacramento to Springfield flights
San Diego to St. Louis flights
Burbank to Springfield flights
Oakland to Kansas City flights
Sacramento to Kansas City flights
Santa Ana to St. Louis flights
San Francisco to Springfield flights
San Jose to St. Louis flights
Long Beach to Springfield flights
Long Beach to St. Louis flights
Reno to St. Louis flights
Fresno to Kansas City flights
Fresno to St. Louis flights
San Jose to Kansas City flights
Medford to Kansas City flights
Oakland to St. Louis flights
Reno to Springfield flights
Long Beach to Kansas City flights
Santa Ana to Joplin flights
San Jose to Springfield flights
Reno to Kansas City flights
Los Angeles to Joplin flights
Monterey to St. Louis flights
Oakland to Springfield flights
Arcata to Branson flights
Santa Rosa to Kansas City flights
Ontario to Joplin flights
Los Angeles to Columbia flights
Palm Springs to Kansas City flights
San Diego to Springfield flights
Fresno to Springfield flights
Las Vegas to Springfield flights
San Luis Obispo to Kansas City flights
Palm Springs to Springfield flights

Top 5 airlines flying from Sacramento to St. Louis

Discover the top 5 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$92Average$228FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$216Average$334FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$395FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$316FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$337Average$514FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.