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Cheap flights from Sacramento to St. Louis from $79

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sacramento to St. Louis departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Sacramento to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:02 pm - 10:02 am
SMF
-
STL
20h 00m1 stop
Frontier Logo
3:43 pm - 12:28 pm
STL
-
SMF
22h 45m1 stop
$158Frontier
Fri, Jan 9 - Wed, Jan 14
Frontier Logo
12:02 pm - 10:02 am
SMF
-
STL
20h 00m1 stop
Frontier Logo
7:43 pm - 1:13 pm
STL
-
SMF
19h 30m1 stop
$163Frontier
Fri, Jan 9 - Sat, Jan 10
Frontier Logo
10:37 am - 12:12 pm
SMF
-
STL
23h 35m1 stop
Frontier Logo
3:43 pm - 12:28 pm
STL
-
SMF
22h 45m1 stop
$164Frontier
Sun, Jan 11 - Wed, Jan 14
Frontier Logo
2:19 pm - 10:02 am
SMF
-
STL
17h 43m1 stop
Frontier Logo
3:43 pm - 12:28 pm
STL
-
SMF
22h 45m1 stop
$171Frontier
Thu, Jan 8 - Wed, Jan 14
Frontier Logo
2:19 pm - 10:02 am
SMF
-
STL
17h 43m1 stop
Frontier Logo
7:43 pm - 1:13 pm
STL
-
SMF
19h 30m1 stop
$175Frontier
Thu, Jan 8 - Sat, Jan 10
Frontier Logo
12:02 pm - 10:02 am
SMF
-
STL
20h 00m1 stop
Frontier Logo
3:43 pm - 10:50 am
STL
-
SMF
21h 07m2 stops
$179Frontier
Fri, Jan 9 - Wed, Jan 14
Frontier Logo
12:03 pm - 2:46 pm
SMF
-
STL
24h 43m1 stop
Frontier Logo
9:32 pm - 12:53 pm
STL
-
SMF
17h 21m1 stop
$181Frontier
Fri, Jan 30 - Sun, Feb 1
Frontier Logo
10:37 am - 12:12 pm
SMF
-
STL
23h 35m1 stop
Frontier Logo
3:43 pm - 10:50 am
STL
-
SMF
21h 07m2 stops
$184Frontier
Sun, Jan 11 - Wed, Jan 14
Frontier Logo
2:19 pm - 10:02 am
SMF
-
STL
17h 43m1 stop
Frontier Logo
3:43 pm - 10:50 am
STL
-
SMF
21h 07m2 stops
$191Frontier
Thu, Jan 8 - Wed, Jan 14
Frontier Logo
2:19 pm - 10:02 am
SMF
-
STL
17h 43m1 stop
Frontier Logo
10:16 pm - 2:54 pm
STL
-
SMF
18h 38m1 stop
$195Frontier
Thu, Jan 8 - Fri, Jan 9

Southwest flights from Sacramento to St. Louis

Our best Southwest deals on Sacramento to St. Louis flight tickets
Southwest
Feb 19
SMF4:30 pmSacramento Intl
5h 15m
1 stop
STL11:45 pmLambert-St Louis
Feb 23
STL7:50 amLambert-St Louis
10h 00m
2 stops
SMF3:50 pmSacramento Intl
$323
Find similar
Southwest
Jan 14
SMF6:55 amSacramento Intl
7h 40m
2 stops
STL4:35 pmLambert-St Louis
Jan 21
STL5:55 amLambert-St Louis
6h 25m
1 stop
SMF10:20 amSacramento Intl
$328
Find similar
Southwest
Dec 25
SMF2:40 pmSacramento Intl
5h 40m
1 stop
STL10:20 pmLambert-St Louis
Dec 28
STL5:00 amLambert-St Louis
6h 30m
1 stop
SMF9:30 amSacramento Intl
$695
Find similar

American Airlines flights from Sacramento to St. Louis

Our best American Airlines deals on Sacramento to St. Louis flight tickets
American Airlines
Dec 12
SMF2:53 pmSacramento Intl
5h 54m
1 stop
STL10:47 pmLambert-St Louis
Jan 4
STL8:00 amLambert-St Louis
6h 12m
1 stop
SMF12:12 pmSacramento Intl
$548
Find similar
American Airlines
Dec 12
SMF12:57 pmSacramento Intl
9h 02m
2 stops
STL11:59 pmLambert-St Louis
Jan 4
STL6:44 pmLambert-St Louis
7h 48m
1 stop
SMF12:32 amSacramento Intl
$553
Find similar
American Airlines
Dec 16
SMF6:00 amSacramento Intl
8h 34m
2 stops
STL4:34 pmLambert-St Louis
Jan 2
STL5:16 amLambert-St Louis
8h 56m
2 stops
SMF12:12 pmSacramento Intl
$673
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from Sacramento to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 1/9

12:02 pm-10:02 am

1 stop20h 00m

Lambert-St Louis

Wed 1/14

3:43 pm-12:28 pm

1 stop22h 45m

$158

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 1/9

12:02 pm-10:02 am

1 stop20h 00m

Lambert-St Louis

Sat 1/10

7:43 pm-1:13 pm

1 stop19h 30m

$163

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sun 1/11

10:37 am-12:12 pm

1 stop23h 35m

Lambert-St Louis

Wed 1/14

3:43 pm-12:28 pm

1 stop22h 45m

$164

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 1/8

2:19 pm-10:02 am

1 stop17h 43m

Lambert-St Louis

Wed 1/14

3:43 pm-12:28 pm

1 stop22h 45m

$171

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 1/8

2:19 pm-10:02 am

1 stop17h 43m

Lambert-St Louis

Sat 1/10

7:43 pm-1:13 pm

1 stop19h 30m

$175

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 1/9

12:02 pm-10:02 am

1 stop20h 00m

Lambert-St Louis

Wed 1/14

3:43 pm-10:50 am

2 stops21h 07m

$179

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 1/30

12:03 pm-2:46 pm

1 stop24h 43m

Lambert-St Louis

Sun 2/1

9:32 pm-12:53 pm

1 stop17h 21m

$181

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sun 1/11

10:37 am-12:12 pm

1 stop23h 35m

Lambert-St Louis

Wed 1/14

3:43 pm-10:50 am

2 stops21h 07m

$184

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 1/8

2:19 pm-10:02 am

1 stop17h 43m

Lambert-St Louis

Wed 1/14

3:43 pm-10:50 am

2 stops21h 07m

$191

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 1/8

2:19 pm-10:02 am

1 stop17h 43m

Lambert-St Louis

Fri 1/9

10:16 pm-2:54 pm

1 stop18h 38m

$195

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Sacramento to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

In general, February is the cheapest month to fly from Sacramento to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $256. The month of January is another great option to travel to St. Louis, with average flight prices from Sacramento averaging around $271.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $429. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $492. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Sacramento at noon is the least expensive time of day to depart. momondo users have found prices as low as $415 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $453 per ticket.

What is the cheapest Sacramento Intl to Lambert-St Louis flight route?

Fly from Sacramento Intl to Lambert-St Louis for the best Sacramento Intl - Lambert-St Louis flight prices

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Sacramento when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $413 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Sacramento for as low as $288 on momondo.

What cabin class options are available on Sacramento Intl to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Sacramento Intl to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Sacramento to St. Louis flights?

You could potentially save up to 19% on your flight if you consider stops on a Sacramento to St. Louis flight.

How have Sacramento to St. Louis flight prices changed over time?

As of December 2025, prices for Sacramento to St. Louis flights are approximately 40% cheaper when compared to flights at the same time last year.

When to book flights from Sacramento to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Sacramento to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Sacramento to St. Louis (SMF to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sacramento to St. Louis

Best Price Found

$228

Fastest flight time

3h 35m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Sacramento in the past 72 hours is $228. The best round-trip flight deal from Sacramento to St. Louis found on momondo in the last 72 hours is $337.
The fastest flight from Sacramento to St. Louis takes 3h 35m
Direct flights go from Sacramento to St. Louis on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.
There is 1 airport in St. Louis. From Sacramento there are direct flights to Lambert-St Louis (STL).
Search flight deals

  • How far is Sacramento Intl to Lambert-St Louis by plane?

    There are 1680.4 mi between Sacramento Intl and Lambert-St Louis. In terms of flight time, this usually takes a little over 3h 35m.

  • When did momondo last update prices for flights from Sacramento Intl Airport to Lambert-St Louis Airport?

    Prices for flights from Sacramento Intl Airport to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Sacramento Intl Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Sacramento Intl Airport to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sacramento Intl Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Sacramento to St. Louis?

  • What is the most popular airline from Sacramento to St. Louis?

Best airlines flying from Sacramento to St. Louis

Compare and see reviews for airlines that fly from Sacramento to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $226Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $245Free CancellationRating
8.0
11,432 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,008 reviews
Search Delta flights
SouthwestPriceFrom $337Free CancellationRating
7.9
4,253 reviews
Search Southwest flights

  • Southwest Flights From Sacramento to St. Louis

    Southwest flies from Sacramento to St. Louis around 4 times per week, with 4,253 momondo users rating the airline 7.9/10. The cheapest Southwest deal from Sacramento to St. Louis in the last 72 hours was $337 (round-trip), much lower than the average airfare cost of $549 for Southwest flights on this route.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Farmington
Festus
Clayton
Glencoe
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Sacramento to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Sacramento.

Can I find flights from Sacramento to St. Louis with flexible booking policies on momondo?

All flight searches from Sacramento to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Sacramento to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Sacramento.

I’m not ready to book a flight from Sacramento to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Sacramento to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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