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Cheap flights from Sacramento to St. Louis from $124

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 9/10. 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

Frontier Logo
11:55 am - 9:11 amSMF-STL
19h 16m1 stop
Frontier Logo
7:54 pm - 11:10 amSTL-SMF
17h 16m1 stop
$245Frontier
Find Deal
Sun, Aug 24 - Sat, Aug 30
Frontier Logo
2:41 pm - 1:46 pmSMF-STL
21h 05m1 stop
Frontier Logo
7:54 pm - 11:10 amSTL-SMF
17h 16m1 stop
$265Frontier
Find Deal
Sun, Aug 24 - Thu, Aug 28
Logo
9:33 am - 9:40 amSMF-STL
22h 07m2 stops
Logo
1:00 pm - 9:41 pmSTL-SMF
34h 41m3 stops
$304
Find Deal
Sat, Sep 6 - Mon, Sep 8
Delta Logo
6:30 am - 6:02 pmSMF-STL
9h 32m2 stops
Delta Logo
2:31 pm - 9:57 pmSTL-SMF
9h 26m2 stops
$314Delta
Find Deal
Tue, Sep 30 - Wed, Oct 1
Southwest Logo
11:15 am - 4:55 pmSMF-STL
3h 40mnonstop
Southwest Logo
5:40 pm - 7:55 pmSTL-SMF
4h 15mnonstop
$317Southwest
Find Deal
Wed, Sep 24 - Wed, Oct 8
Southwest Logo
2:20 pm - 10:15 pmSMF-STL
5h 55m1 stop
Southwest Logo
5:40 pm - 7:55 pmSTL-SMF
4h 15mnonstop
$318Southwest
Find Deal
Wed, Sep 24 - Wed, Oct 8
Delta Logo
2:03 pm - 11:24 pmSMF-STL
7h 21m1 stop
Delta Logo
7:35 am - 6:20 pmSTL-SMF
12h 45m2 stops
$320Delta
Find Deal
Sat, Aug 23 - Wed, Aug 27
Logo
9:33 am - 12:00 pmSMF-STL
24h 27m3 stops
Logo
1:00 pm - 9:41 pmSTL-SMF
34h 41m3 stops
$321
Find Deal
Sat, Sep 6 - Mon, Sep 8
American Airlines Logo
10:13 pm - 9:17 amSMF-STL
9h 04m1 stop
American Airlines Logo
3:59 pm - 10:40 pmSTL-SMF
8h 41m1 stop
$327American Airlines
Find Deal
Tue, Sep 2 - Sat, Sep 6
American Airlines Logo
10:13 pm - 9:17 amSMF-STL
9h 04m1 stop
American Airlines Logo
9:44 am - 3:49 pmSTL-SMF
8h 05m2 stops
$332American Airlines
Find Deal
Tue, Sep 2 - Sat, Sep 6

American Airlines flights from Sacramento to St. Louis

Our best American Airlines deals on Sacramento to St. Louis flight tickets
American Airlines
Sep 2
SMF10:13 pmSacramento Intl
9h 04m
1 stop
STL9:17 amLambert-St Louis
Sep 6
STL3:59 pmLambert-St Louis
8h 41m
1 stop
SMF10:40 pmSacramento Intl
$327
Find similar
American Airlines
Sep 2
SMF10:13 pmSacramento Intl
9h 04m
1 stop
STL9:17 amLambert-St Louis
Sep 6
STL9:44 amLambert-St Louis
8h 05m
2 stops
SMF3:49 pmSacramento Intl
$332
Find similar
American Airlines
Sep 2
SMF11:30 amSacramento Intl
9h 44m
2 stops
STL11:14 pmLambert-St Louis
Sep 6
STL8:50 amLambert-St Louis
8h 59m
2 stops
SMF3:49 pmSacramento Intl
$337
Find similar

Southwest flights from Sacramento to St. Louis

Our best Southwest deals on Sacramento to St. Louis flight tickets
Southwest
Sep 24
SMF11:15 amSacramento Intl
3h 40m
STL4:55 pmLambert-St Louis
Oct 8
STL5:40 pmLambert-St Louis
4h 15m
SMF7:55 pmSacramento Intl
$317
Find similar
Southwest
Sep 24
SMF2:20 pmSacramento Intl
5h 55m
1 stop
STL10:15 pmLambert-St Louis
Oct 8
STL5:40 pmLambert-St Louis
4h 15m
SMF7:55 pmSacramento Intl
$318
Find similar
Southwest
Aug 23
SMF9:05 amSacramento Intl
8h 05m
1 stop
STL7:10 pmLambert-St Louis
Aug 27
STL1:20 pmLambert-St Louis
4h 05m
SMF3:25 pmSacramento Intl
$322
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 July 31, 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

Sun 8/24

11:55 am-9:11 am

1 stop19h 16m

Lambert-St Louis

Sat 8/30

7:54 pm-11:10 am

1 stop17h 16m

$245

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sun 8/24

2:41 pm-1:46 pm

1 stop21h 05m

Lambert-St Louis

Thu 8/28

7:54 pm-11:10 am

1 stop17h 16m

$265

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 9/6

9:33 am-9:40 am

2 stops22h 07m

Lambert-St Louis

Mon 9/8

1:00 pm-9:41 pm

3 stops34h 41m

$304

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 9/30

6:30 am-6:02 pm

2 stops9h 32m

Lambert-St Louis

Wed 10/1

2:31 pm-9:57 pm

2 stops9h 26m

$314

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 9/24

11:15 am-4:55 pm

Nonstop3h 40m

Lambert-St Louis

Wed 10/8

5:40 pm-7:55 pm

Nonstop4h 15m

$317

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 9/24

2:20 pm-10:15 pm

1 stop5h 55m

Lambert-St Louis

Wed 10/8

5:40 pm-7:55 pm

Nonstop4h 15m

$318

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 8/23

2:03 pm-11:24 pm

1 stop7h 21m

Lambert-St Louis

Wed 8/27

7:35 am-6:20 pm

2 stops12h 45m

$320

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 9/6

9:33 am-12:00 pm

3 stops24h 27m

Lambert-St Louis

Mon 9/8

1:00 pm-9:41 pm

3 stops34h 41m

$321

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 9/2

10:13 pm-9:17 am

1 stop9h 04m

Lambert-St Louis

Sat 9/6

3:59 pm-10:40 pm

1 stop8h 41m

$327

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 9/2

10:13 pm-9:17 am

1 stop9h 04m

Lambert-St Louis

Sat 9/6

9:44 am-3:49 pm

2 stops8h 05m

$332

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, January 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 $246. The month of February is another great option to travel to St. Louis, with average flight prices from Sacramento averaging around $256.

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 $420. 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 Sunday because tickets tend to average around $467. 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 $403 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $452 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 $349 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 $231 on momondo.

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

There are 1 cabin classes 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 28% 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 July 2025, prices for Sacramento to St. Louis flights are approximately 12% 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

$124

Fastest flight time

3h 40m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Sacramento in the past 72 hours is $124. The best round-trip flight deal from Sacramento to St. Louis found on momondo in the last 72 hours is $245.
The fastest flight from Sacramento to St. Louis takes 3h 40m
Direct flights go from Sacramento to St. Louis every day.
There is 1 airport near St. Louis: 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 40m.

  • 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
FrontierPriceFrom $108Free CancellationRating
5.9
3,239 reviews
Search Frontier flights
DeltaPriceFrom $236Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
SouthwestPriceFrom $346Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

  • Southwest Flights From Sacramento to St. Louis

    Southwest flies from Sacramento to St. Louis around 6 times per week, with 4,246 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Sacramento to St. Louis in the last 72 hours was $346 (round-trip), much lower than the average airfare cost of $519 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
Florissant
Fenton
Collinsville
O'Fallon
Alton
St. Peters
Farmington
Wentzville
Festus
Glencoe
Eureka
Edwardsville
Clayton
Shrewsbury
Grafton

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

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