STL - SMF

$117 Find Cheap Flights from St. Louis to Sacramento - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Sacramento departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sacramento

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Sacramento, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Sacramento, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$228
Typical prices: $683-$346
Frontier
Mon 8/10Wed 8/19
STL - SMF • 1 stop
Cheapest non-stop
$417
Typical prices: $893-$523
Southwest
Tue 8/11Wed 8/19
STL - SMF • Non-stop
Top airlines
Cheapest • from $228 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest. Average duration is 4h 00m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $315 (round-trip)
Shortest trip • 6h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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We hope you love your trip to Sacramento!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from St. Louis to Sacramento (STL-SMF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Sacramento that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Sacramento

Mon, Aug 10 - Wed, Aug 19
Frontier Logo
7:10 pm - 4:11 pm
STL
-
SMF
23h 01m
1 stop
Frontier Logo
5:10 pm - 7:36 pm
SMF
-
STL
24h 26m
1 stop
$228Frontier
Tue, Aug 11 - Mon, Aug 17
Southwest Logo
6:00 am - 12:45 pm
STL
-
SMF
8h 45m
1 stop
Southwest Logo
3:00 pm - 12:45 am
SMF
-
STL
7h 45m
1 stop
$230Southwest
Wed, Aug 12 - Tue, Aug 18
Delta Logo
3:50 pm - 8:35 pm
STL
-
SMF
6h 45m
1 stop
Delta Logo
5:00 pm - 12:41 am
SMF
-
STL
5h 41m
1 stop
$237Delta
Tue, Sep 1 - Sat, Sep 5
Delta Logo
5:00 pm - 11:46 pm
STL
-
SMF
8h 46m
1 stop
Delta Logo
6:00 am - 4:44 pm
SMF
-
STL
8h 44m
1 stop
$243Delta
Tue, Aug 11 - Wed, Aug 19
Frontier Logo
7:03 pm - 4:11 pm
STL
-
SMF
23h 08m
1 stop
Frontier Logo
5:10 pm - 7:36 pm
SMF
-
STL
24h 26m
1 stop
$249Frontier
Sun, Aug 9 - Wed, Aug 19
Frontier Logo
7:10 pm - 6:49 pm
STL
-
SMF
25h 39m
1 stop
Frontier Logo
5:10 pm - 7:36 pm
SMF
-
STL
24h 26m
1 stop
$250Frontier
Wed, Aug 5 - Wed, Aug 12
Frontier Logo
7:03 pm - 6:49 pm
STL
-
SMF
25h 46m
1 stop
Frontier Logo
5:07 pm - 6:15 pm
SMF
-
STL
23h 08m
1 stop
$252Frontier
Mon, Aug 10 - Wed, Aug 19
Frontier Logo
8:08 pm - 7:23 pm
STL
-
SMF
25h 15m
2 stops
Frontier Logo
5:10 pm - 7:36 pm
SMF
-
STL
24h 26m
1 stop
$258Frontier
Tue, Sep 1 - Sat, Sep 5
Southwest Logo
8:35 am - 4:20 pm
STL
-
SMF
9h 45m
2 stops
Southwest Logo
10:55 am - 7:05 pm
SMF
-
STL
6h 10m
1 stop
$259Southwest
Fri, Jul 31 - Tue, Aug 4
Frontier Logo
7:10 pm - 3:32 pm
STL
-
SMF
22h 22m
1 stop
Frontier Logo
5:07 pm - 6:05 pm
SMF
-
STL
22h 58m
1 stop
$261Frontier
Booking Insights

KAYAK's insights & trends for St. Louis to Sacramento flights

Get data-powered insights and trends into flights from St. Louis to Sacramento to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Sacramento?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Sacramento departing in August.

What’s the cheapest day of the week to fly from St. Louis to Sacramento?

The average price of all round-trip flights from St. Louis to Sacramento clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from St. Louis to Sacramento, look for departures on Fridays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Sacramento, Saturday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Sacramento, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Sacramento is February, where tickets cost $323 (return) on average. On the other hand, the most expensive months are August and May, where the average cost of round-trip tickets is $574 and $529 respectively.

Can I save money by flying with a layover from St. Louis to Sacramento?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $452, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Sacramento, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Sacramento, you should book around 5 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Expert advice

Expert advice for your flight from St. Louis to Sacramento

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Bill Fink

Bill Fink

Expert on SMF

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Good to know

Low seasonJanuary
Cheapest flight$117
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from St. Louis to Sacramento

When to book flights from St. Louis to Sacramento

Are your dates flexible? Find out the best times to travel from St. Louis to Sacramento based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Sacramento

  • Can I get a first-class upgrade from St. Louis to Sacramento?

    Non-elite passengers on Delta Airlines may upgrade using their Sky Miles or pay for an upgrade during booking or check-in. First-class upgrades are available to elite members through complimentary upgrades. Non-elite United Airlines members can use the MileagePlus miles, while select United members can use their Plus Points.

  • Which family-friendly airlines can I consider for my flight from St. Louis to Sacramento?

    American Airlines is one of the family-friendly airlines you should consider for your flight from St. Louis to Sacramento with kids. The airline offers free checked strollers and kids' meals that are either vegetarian or gluten-free. It offers family-friendly seating options, including the ability to reserve seats together and options to purchase extra seats for added comfort.

  • Are there any environmentally friendly airlines that fly from St. Louis to Sacramento?

    Alaska Airlines composts food waste from its flights, reducing the waste sent to landfills. It has a recycling program to recycle paper, plastic, and aluminum cans. Alaska Airlines has also reduced single-use plastics on its flights, such as replacing plastic straws with sustainable alternatives.

  • Which airlines from St. Louis to Sacramento offer direct flights?

    Southwest Airlines is a good option for travelers who wish to take direct flights to Sacramento. Direct flights from this airline save time by eliminating the need to change planes and wait for connecting flights. It is also better for elderly or disabled passengers, as they reduce the need to navigate unfamiliar airports and terminals.

  • What is the cheapest flight from St. Louis to Sacramento?

    In the last 5 days, the lowest price for a flight from St. Louis to Sacramento was $117 for a one-way ticket and $228 for a round-trip.

  • Do I need a passport to fly between St. Louis and Sacramento?

    No

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Sacramento?

    Alaska Airlines, JetBlue, and American Airlines offer inflight Wi-Fi service on the St. Louis to Sacramento flight route.

  • Which aircraft models fly most regularly from St. Louis to Sacramento?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the St. Louis to Sacramento flight route.

  • Which airline alliances offer flights from St. Louis to Sacramento?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between St. Louis and Sacramento, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from St. Louis to Sacramento?

    There are nonstop flights from St. Louis to Sacramento on a daily basis.

  • Which is the best airline for flights from St. Louis to Sacramento, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to Sacramento are Southwest and Delta. With an average price for the route of $535 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $347 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from St. Louis to Sacramento?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Sacramento.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Sacramento?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sacramento from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Sacramento?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sacramento with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SMF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Sacramento?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sacramento from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Sacramento

  • Looking for a cheap flight? 25% of our users found flights on this route for $198 or less one-way and $516 or less round-trip.
  • United Club Lounge in Lambert-St Louis International Airport (STL) is located in Terminal 1 near Gate C16. This lounge is open to United Club and Star Alliance Gold members or United Polaris business class passengers. If you are eligible, you can present your membership card or boarding pass at the lounge reception desk to access the lounge. It offers comfortable seats, beverages, and dining options.
  • Lambert-St Louis International Airport (STL) is St. Louis' main airport, located about 14 miles northwest of downtown. STL is a hub for Southwest Airlines, while Frontier, Allegiant Air, and Air Choice One Airlines also operate through the airport. STL is connected to transit options like ride-sharing services and taxis, making it easy for travelers to reach the airport and downtown swiftly.
  • The main airport serving Sacramento is Sacramento International Airport (SMF). SMF offers domestic and international flights. International destinations include Mexico City and San Lucas, and domestic flights to Las Vegas, Los Angeles, Seattle, and Denver. With the aid of taxis and buses connected to SMF, people may reach the airport fast.
  • Denver, Phoenix, and Los Angeles are the layover locations on this route. Flights with layovers in these cities are available from American, Delta, and Frontier Airlines. These places save time by taking a shorter route, allowing travelers to discover different regions. They also allow passengers to connect with family or friends living in or near the layover city.
  • Frontier Airlines is one of the budget-friendly airlines you should consider for your flight from St. Louis to Sacramento. This airline offers low fares and does not charge fees for flights changed more than 60 days before departure. All the basic amenities, such as snacks and drinks, are cheaper than most airlines. It also offers a credit card to earn you flight rewards and discounts.

Prefer to fly direct from St. Louis to Sacramento?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to Sacramento Intl.
Find which airlines fly direct from Lambert-St Louis Airport to Sacramento Intl Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Sacramento Intl

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Sacramento Intl to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 4 airlines serving from St. Louis to Sacramento

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Sacramento. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Sacramento? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4235 reviews
8.6Crew
7.5Entertainment
8.0Comfort
7.0Food
8.1Boarding
Airline reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Service was professional and quick. Premium economy seat was comfortable given the class

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

To have arrived on time and not 3 hours late after having already spent $100 to change to an earlier flight, only to arrive back home close to the original flight time.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Wifi was spotty. Tray table was very dirty when I sat down.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Delayed for mechanical and no updates on what was happening and how long the delay might be.

Everything you need to know for your flight from St. Louis to Sacramento

Information on your arrival and departure airports