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St. Louis

$58+ Cheap flights from Salt Lake City to St. Louis (SLC - 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — STL
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Find cheap flights from Salt Lake City to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Salt Lake City to Lambert-St Louis are usually found in June or February, booked 69 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Salt Lake City to St. Louis

Cheapest flights from Salt Lake City to St. Louis
Explore the most affordable flight options available from Salt Lake City to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1210:37 pm
SLC
-
STL
1 stop21h 49m
Frontier
Mon 2/238:47 pm
STL
-
SLC
1 stop16h 14m
Frontier
Deal found 1/25$134
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1210:37 pm
SLC
-
STL
1 stop21h 49m
Frontier
Wed 2/254:51 pm
STL
-
SLC
1 stop16h 53m
Frontier
Deal found 1/25$135
This Frontier deal was found by Cheapflights users on 1/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:00 am
SLC
-
STL
1 stop6h 53m
Frontier
Mon 2/231:54 pm
STL
-
SLC
1 stop11h 20m
Frontier
Deal found 1/24$138
This Kiwi.com deal was found by Cheapflights users on 1/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/139:59 pm
SLC
-
STL
1 stop14h 57m
Frontier
Mon 2/1610:11 pm
STL
-
SLC
1 stop16h 22m
Frontier
Deal found 1/23$147
This Expedia deal was found by Cheapflights users on 1/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/217:20 am
SLC
-
STL
1 stop5h 36m
Frontier
Sat 2/282:51 pm
STL
-
SLC
1 stop18h 53m
Frontier
Deal found 1/23$154
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1210:37 pm
SLC
-
STL
1 stop21h 49m
Frontier
Fri 2/209:02 pm
STL
-
SLC
1 stop14h 47m
Frontier
Deal found 1/25$155
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:59 pm
SLC
-
STL
1 stop10h 50m
Frontier
Mon 3/98:12 pm
STL
-
SLC
1 stop12h 43m
Frontier
Deal found 1/24$158
This CheapOair deal was found by Cheapflights users on 1/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1910:37 pm
SLC
-
STL
1 stop21h 49m
Frontier
Mon 2/231:54 pm
STL
-
SLC
1 stop11h 20m
Frontier
Deal found 1/26$159
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1210:37 pm
SLC
-
STL
1 stop21h 49m
Frontier
Sat 2/216:41 pm
STL
-
SLC
1 stop14h 49m
Frontier
Deal found 1/25$161
This Kiwi.com deal was found by Cheapflights users on 1/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/69:14 pm
SLC
-
STL
1 stop11h 35m
Frontier
Mon 3/98:12 pm
STL
-
SLC
1 stop12h 43m
Frontier
Deal found 1/23$164
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/139:59 pm
SLC
-
STL
1 stop14h 57m
Frontier
Wed 2/254:51 pm
STL
-
SLC
1 stop16h 53m
Frontier
Deal found 1/25$171
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/139:59 pm
SLC
-
STL
1 stop14h 57m
Frontier
Mon 2/238:47 pm
STL
-
SLC
1 stop16h 14m
Frontier
Deal found 1/25$173

Find flight deals from Salt Lake City to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Salt Lake City (SLC) 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$134
(Kiwi.com)

One-way from

$58
(Trip.com)

Popular in

November

Cheapest in

June

Average price

$434

Good round-trip deal

$399 or less

Good one-way deal

$308 or less
Provider with most accurate pricing for Salt Lake City-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Salt Lake City-Lambert-St Louis flights.
Search Deals
From Salt Lake City to Lambert-St Louis
Search Deals
One-way flight from Salt Lake City to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Salt Lake City to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from Salt Lake City to Lambert-St Louis.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Salt Lake City 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 January 26, 2026.
Use the filters below to find and compare flights from Salt Lake City to St. Louis that are best for you.

Fly from

Salt Lake City

Fly to

St. Louis

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 2/13

9:59 pm-1:56 pm

1 stop14h 57m

Lambert-St Louis

Wed 2/25

4:51 pm-8:44 am

1 stop16h 53m

$171

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 2/12

10:37 pm-9:26 pm

1 stop21h 49m

Lambert-St Louis

Tue 2/24

3:49 pm-1:33 pm

2 stops22h 44m

$183

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 2/13

9:59 pm-1:56 pm

1 stop14h 57m

Lambert-St Louis

Mon 2/16

10:11 pm-1:33 pm

1 stop16h 22m

$209

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 2/25

8:00 am-3:53 pm

1 stop6h 53m

Lambert-St Louis

Sat 2/28

2:51 pm-12:14 am

1 stop10h 23m

$262

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 2/18

9:00 am-1:51 pm

1 stop27h 51m

Lambert-St Louis

Tue 2/24

7:00 am-2:26 pm

1 stop8h 26m

$330

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 2/20

11:14 am-11:59 pm

1 stop11h 45m

Lambert-St Louis

Tue 2/24

7:00 am-2:26 pm

1 stop8h 26m

$340

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sat 5/16

3:42 pm-11:57 pm

1 stop7h 15m

Lambert-St Louis

Tue 5/19

7:56 pm-10:15 am

1 stop15h 19m

$355

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 2/19

6:20 am-11:59 pm

1 stop16h 39m

Lambert-St Louis

Mon 2/23

7:00 am-8:38 pm

2 stops14h 38m

$386

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 2/12

3:20 pm-11:59 pm

1 stop7h 39m

Lambert-St Louis

Tue 2/24

7:00 am-2:26 pm

1 stop8h 26m

$393

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 4/16

8:40 pm-12:25 am

Nonstop2h 45m

Lambert-St Louis

Sun 4/19

6:45 pm-9:02 pm

Nonstop3h 17m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/23

Showing 1-10 of 22 results
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Compare providers for flights from Salt Lake City to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Salt Lake City to St. Louis in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Salt Lake City-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Salt Lake City-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Salt Lake City-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Salt Lake City-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Salt Lake City-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Salt Lake City to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Salt Lake City 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 Salt Lake City to St. Louis

How far ahead should I book a flight from Salt Lake City to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Salt Lake City to St. Louis. Price data was last updated on January 23, 2026.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Salt Lake City 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 Salt Lake City to St. Louis?

Currently, February is the cheapest month in which you can book a flight from Salt Lake City to St. Louis (average of $109). Flying from Salt Lake City to St. Louis in November is currently the most expensive (average of $256). 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 SLC to STL?

Find hourly flight availability from Salt Lake City 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 January 26, 2026.

One of the essential ways to save on airfare from Salt Lake City 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 evening could potentially save you up to 13% on airfare.

What is the cheapest day to fly from Salt Lake City to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Salt Lake City to St. Louis. Price data was last updated on January 17, 2026.

Travelers seeking maximum savings on their Salt Lake City to St. Louis flight should consider departing on Saturday at noon when fares are most often at their lowest. Wednesday afternoons 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 January 26, 2026.
Read through reviews of airlines operating flights from Salt Lake City to St. Louis, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,111 reviews
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,199 reviews
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,189 reviews
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,058 reviews
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Salt Lake City 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 Salt Lake City to St. Louis?

    To fly from Salt Lake City to St. Louis, you need to book a flight from Salt Lake City (SLC) to Lambert-St Louis (STL). Nonstop flights to Lambert-St Louis from Salt Lake City take 2h 45m on average. When it comes time to book airfare, you have a few options: there are 3 outbound flights from Salt Lake City to Lambert-St Louis offered by 5 different airlines.

  • How long is the flight from Salt Lake City to St. Louis?

    Frontier and Alaska Airlines can get you from Salt Lake City to St. Louis in just under 14h 57m. Your travel time can differ by up to 12h 54m. The distance from Salt Lake City to St. Louis is about 1153 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Salt Lake City to St. Louis round-trip?

    According to our current data, Frontier ($116), Southwest ($264), and United Airlines ($306) offers the cheapest pricing from Salt Lake City to St. Louis. Users have found that Frontier is 72% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Salt Lake City to St. Louis one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $71. Users have also found prices from $118 and $128 on American Airlines and United Airlines, respectively.

  • What are the most reliable airlines from Salt Lake City to St. Louis?

    Consider KLM (82%), Delta (79%) or Korean Air (69%) when booking your flight. These represent the most reliable airlines when flying from Salt Lake City to St. Louis.

  • What are the cheapest flights from Salt Lake City to St. Louis?

    The cheapest flight price from Salt Lake City to St. Louis is $279. On average you can expect to pay $374. The most popular route, (Salt Lake City - Lambert-St Louis), can usually be booked for $217.

  • Can I find deals for flights from Salt Lake City to St. Louis that include hotel bookings?

    Yes. In addition to deals on Salt Lake City to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Salt Lake City to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Salt Lake City to St. Louis.

  • Can I find deals for business class flights from Salt Lake City to St. Louis?

    Yes. Cheapflights offers flight deals from Salt Lake City 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 Salt Lake City to St. Louis?

    Currently, February is the cheapest month in which you can book a flight from Salt Lake City to St. Louis (average of $109). Flying from Salt Lake City to St. Louis in November is currently the most expensive (average of $256). 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 St. Louis?

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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Salt Lake City to St. Louis

Discover the top 5 airlines that operate flights from Salt Lake City 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$116Average$231FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$264Average$441FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$306Average$438FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$316Average$406FlexibilityNo cancel feeOn-time71%
DeltaCheapest$319Average$440FlexibilityNo cancel feeOn-timeN/A

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