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Cheap flights from Sacramento to St. Louis from $97

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 5/8. 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.
Alaska Airlines Logo
6:00 am - 11:59 pm
SMF
-
STL
15h 59m
1 stop
Alaska Airlines Logo
2:47 pm - 9:14 pm
STL
-
SMF
8h 27m
1 stop
$227Alaska Airlines
Thu, Feb 26 - Mon, Mar 2
Delta Logo
10:40 pm - 8:07 am
SMF
-
STL
7h 27m
1 stop
Delta Logo
6:59 pm - 11:36 pm
STL
-
SMF
6h 37m
1 stop
$237Delta
Wed, Aug 5 - Mon, Aug 10
United Airlines Logo
7:07 am - 8:26 pm
SMF
-
STL
11h 19m
2 stops
United Airlines Logo
5:29 pm - 10:15 pm
STL
-
SMF
6h 46m
1 stop
$242United Airlines
Tue, Feb 24 - Sat, Feb 28
American Airlines Logo
12:59 pm - 11:22 pm
SMF
-
STL
8h 23m
2 stops
American Airlines Logo
4:13 pm - 11:59 pm
STL
-
SMF
9h 46m
2 stops
$247American Airlines
Tue, Feb 24 - Sat, Feb 28
Frontier Logo
10:53 am - 1:09 pm
SMF
-
STL
24h 16m
1 stop
Frontier Logo
10:11 pm - 8:13 am
STL
-
SMF
12h 02m
1 stop
$251Frontier
Sun, Mar 1 - Thu, Mar 5
Delta Logo
10:20 pm - 9:06 am
SMF
-
STL
8h 46m
1 stop
Delta Logo
6:40 pm - 11:43 pm
STL
-
SMF
7h 03m
1 stop
$257Delta
Fri, Feb 20 - Sun, Feb 22
Delta Logo
10:20 pm - 9:06 am
SMF
-
STL
8h 46m
1 stop
Delta Logo
7:00 am - 5:28 pm
STL
-
SMF
12h 28m
2 stops
$270Delta
Sun, Mar 1 - Wed, Mar 4
Delta Logo
5:15 pm - 12:25 am
SMF
-
STL
5h 10m
1 stop
Delta Logo
2:22 pm - 9:49 pm
STL
-
SMF
9h 27m
2 stops
$275Delta
Wed, Feb 25 - Fri, Feb 27
Frontier Logo
11:51 am - 11:19 am
SMF
-
STL
21h 28m
2 stops
Frontier Logo
8:06 pm - 7:58 am
STL
-
SMF
13h 52m
1 stop
$279Frontier
Thu, Mar 26 - Sun, Mar 29
Delta Logo
11:45 am - 11:23 pm
SMF
-
STL
9h 38m
2 stops
Delta Logo
1:39 pm - 9:55 pm
STL
-
SMF
10h 16m
1 stop
$280Delta
Thu, Mar 5 - Wed, Mar 11

Alaska Airlines flights from Sacramento to St. Louis

Our best Alaska Airlines deals on Sacramento to St. Louis flight tickets
Alaska Airlines
Feb 26
SMF6:00 amSacramento Intl
15h 59m
1 stop
STL11:59 pmLambert-St Louis
Mar 2
STL2:47 pmLambert-St Louis
8h 27m
1 stop
SMF9:14 pmSacramento Intl
$227
Alaska Airlines
Feb 26
SMF6:00 amSacramento Intl
15h 59m
1 stop
STL11:59 pmLambert-St Louis
Mar 2
STL2:47 pmLambert-St Louis
18h 49m
2 stops
SMF7:36 amSacramento Intl
$295
Alaska Airlines
Feb 26
SMF6:00 amSacramento Intl
15h 59m
1 stop
STL11:59 pmLambert-St Louis
Mar 2
STL2:47 pmLambert-St Louis
18h 49m
2 stops
SMF7:36 amSacramento Intl
$300

Delta flights from Sacramento to St. Louis

Our best Delta deals on Sacramento to St. Louis flight tickets
Delta
Aug 5
SMF10:40 pmSacramento Intl
7h 27m
1 stop
STL8:07 amLambert-St Louis
Aug 10
STL6:59 pmLambert-St Louis
6h 37m
1 stop
SMF11:36 pmSacramento Intl
$237
Delta
Feb 20
SMF5:15 pmSacramento Intl
5h 10m
1 stop
STL12:25 amLambert-St Louis
Feb 23
STL6:40 pmLambert-St Louis
7h 03m
1 stop
SMF11:43 pmSacramento Intl
$257
Delta
Mar 1
SMF10:20 pmSacramento Intl
8h 46m
1 stop
STL9:06 amLambert-St Louis
Mar 4
STL7:00 amLambert-St Louis
12h 28m
2 stops
SMF5:28 pmSacramento Intl
$270

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 February 9, 2026.
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

Thu 2/26

6:00 am-11:59 pm

1 stop15h 59m

Lambert-St Louis

Mon 3/2

2:47 pm-9:14 pm

1 stop8h 27m

$227

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 8/5

10:40 pm-8:07 am

1 stop7h 27m

Lambert-St Louis

Mon 8/10

6:59 pm-11:36 pm

1 stop6h 37m

$237

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 2/24

7:07 am-8:26 pm

2 stops11h 19m

Lambert-St Louis

Sat 2/28

5:29 pm-10:15 pm

1 stop6h 46m

$242

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 2/24

12:59 pm-11:22 pm

2 stops8h 23m

Lambert-St Louis

Sat 2/28

4:13 pm-11:59 pm

2 stops9h 46m

$247

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sun 3/1

10:53 am-1:09 pm

1 stop24h 16m

Lambert-St Louis

Thu 3/5

10:11 pm-8:13 am

1 stop12h 02m

$251

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 2/20

10:20 pm-9:06 am

1 stop8h 46m

Lambert-St Louis

Sun 2/22

6:40 pm-11:43 pm

1 stop7h 03m

$257

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sun 3/1

10:20 pm-9:06 am

1 stop8h 46m

Lambert-St Louis

Wed 3/4

7:00 am-5:28 pm

2 stops12h 28m

$270

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 2/25

5:15 pm-12:25 am

1 stop5h 10m

Lambert-St Louis

Fri 2/27

2:22 pm-9:49 pm

2 stops9h 27m

$275

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 3/26

11:51 am-11:19 am

2 stops21h 28m

Lambert-St Louis

Sun 3/29

8:06 pm-7:58 am

1 stop13h 52m

$279

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 3/5

11:45 am-11:23 pm

2 stops9h 38m

Lambert-St Louis

Wed 3/11

1:39 pm-9:55 pm

1 stop10h 16m

$280

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 $377. The month of June is another great option to travel to St. Louis, with average flight prices from Sacramento averaging around $394.

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 $428. 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 $533. 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 $386 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 $521 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 $450 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 $323 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 15% 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 February 2026, prices for Sacramento to St. Louis flights are approximately 66% more expensive 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

$163

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 $163. The best round-trip flight deal from Sacramento to St. Louis found on momondo in the last 72 hours is $341.
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 $246Free CancellationRating
7.2
11,259 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,267 reviews
Search United Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,178 reviews
Search Delta flights
SouthwestPriceFrom $337Free CancellationRating
8.0
4,280 reviews
Search Southwest flights

  • Southwest Flights From Sacramento to St. Louis

    Southwest flies from Sacramento to St. Louis around 6 times per week, with 4,280 momondo users rating the airline 8.0/10. 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 $551 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
O'Fallon
Collinsville
St. Peters
Fenton
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
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

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