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$108+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — STL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Sacramento Intl to Lambert-St Louis are usually found in January or February, booked 34 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 July 3, 2025.

Round-trip from

$240
(FlightHub)

One-way from

$114
(Mytrip)

Popular in

May

Cheapest in

January

Average price

$404
From Sacramento Intl to Lambert-St Louis
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One-way flight from Sacramento Intl to Lambert-St Louis
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Highest demand for flights based on searches. 15% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2111:55 amSMF - STL
1 stop19h 16mFrontier
Sun 8/247:54 pmSTL - SMF
1 stop17h 16mFrontier
Deal found 7/2$240
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2212:01 pmSMF - STL
2 stops20h 28mSpirit Airlines
Mon 7/2810:47 amSTL - SMF
2 stops26h 19mSpirit Airlines
Deal found 7/1$294
This Hawaiian Airlines deal was found by Cheapflights users on 7/1. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:50 amSMF - STL
1 stop8h 44mHawaiian Airlines
Mon 8/256:30 pmSTL - SMF
1 stop7h 14mHawaiian Airlines
Deal found 7/1$296
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/182:56 pmSMF - STL
1 stop6h 55mAmerican Airlines
Wed 8/207:23 amSTL - SMF
1 stop8h 43mAmerican Airlines
Deal found 7/1$297
This Delta deal was found by Cheapflights users on 7/2. 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 9/15:09 pmSMF - STL
1 stop5h 29mDelta
Tue 9/27:35 amSTL - SMF
1 stop6h 55mDelta
Deal found 7/2$307
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 9/308:38 amSMF - STL
1 stop6h 56mAlaska Airlines
Sat 10/43:57 pmSTL - SMF
1 stop7h 57mAlaska Airlines
Deal found 7/2$309
This United Airlines deal was found by Cheapflights users on 7/3. 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 8/2110:32 amSMF - STL
2 stops8h 14mUnited Airlines
Mon 8/254:40 pmSTL - SMF
1 stop6h 10mUnited Airlines
Deal found 7/3$312
This Southwest deal was found by Cheapflights users on 6/30. 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.
Thu 9/252:45 pmSMF - STL
Nonstop3h 40mSouthwest
Tue 9/301:20 pmSTL - SMF
Nonstop4h 05mSouthwest
Deal found 6/30$313
This Mytrip deal was found by Cheapflights users on 7/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:30 amSMF - STL
2 stops26h 57mMultiple Airlines
Sun 9/212:30 pmSTL - SMF
3 stops33h 11mMultiple Airlines
Deal found 7/2$316

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 July 3, 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

Thu 8/21

11:55 am-9:11 am

1 stop19h 16m

Lambert-St Louis

Sun 8/24

7:54 pm-11:10 am

1 stop17h 16m

$240

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 7/22

12:01 pm-10:29 am

2 stops20h 28m

Lambert-St Louis

Mon 7/28

10:47 am-11:06 am

2 stops26h 19m

$294

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 8/21

6:50 am-5:34 pm

1 stop8h 44m

Lambert-St Louis

Mon 8/25

6:30 pm-11:44 pm

1 stop7h 14m

$296

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Mon 8/18

2:56 pm-11:51 pm

1 stop6h 55m

Lambert-St Louis

Wed 8/20

7:23 am-2:06 pm

1 stop8h 43m

$297

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Mon 9/1

5:09 pm-12:38 am

1 stop5h 29m

Lambert-St Louis

Tue 9/2

7:35 am-12:30 pm

1 stop6h 55m

$307

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 9/30

8:38 am-5:34 pm

1 stop6h 56m

Lambert-St Louis

Sat 10/4

3:57 pm-9:54 pm

1 stop7h 57m

$309

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 8/21

10:32 am-8:46 pm

2 stops8h 14m

Lambert-St Louis

Mon 8/25

4:40 pm-8:50 pm

1 stop6h 10m

$312

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 9/25

2:45 pm-8:25 pm

Nonstop3h 40m

Lambert-St Louis

Tue 9/30

1:20 pm-3:25 pm

Nonstop4h 05m

$313

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 9/18

6:30 am-11:27 am

2 stops26h 57m

Lambert-St Louis

Sun 9/21

2:30 pm-9:41 pm

3 stops33h 11m

$316

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 10/3

12:06 pm-9:06 am

1 stop19h 00m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 17 results
1
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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 June 27, 2025.

Booking 34 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 July 3, 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 June 29, 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 July 3, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 35m 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, 6 users have taken a look at flights from Sacramento Intl to Lambert-St Louis.

  • 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 $240. Other airlines that can offer you cheap pricing are Spirit Airlines, from $294, and Hawaiian Airlines, from $296. Frontier is 29% 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 $114. However, be on the lookout for offers from Spirit Airlines and Hawaiian 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 $143. On average you can expect to pay $339. The most popular route, (Sacramento Intl - Lambert-St Louis), can usually be booked for $276.

  • 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 Sacramento?

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

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$218FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$166Average$335FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$311FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$246Average$373FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$377Average$509FlexibilityNo cancel feeOn-time63%

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