HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$48+ Cheap flights from Utah to St. Louis (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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — STL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Utah 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Utah to St. Louis

Cheapest flights from Utah to St. Louis
Explore the most affordable flight options available from Utah to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 2/248:01 pm
SLC
-
STL
1 stop18h 52m
Frontier
Sat 2/282:51 pm
STL
-
SLC
1 stop18h 53m
Frontier
Deal found 1/27$131
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Tue 2/108:01 pm
SLC
-
STL
1 stop16h 57m
Frontier
Sat 3/78:12 pm
STL
-
SLC
1 stop11h 43m
Frontier
Deal found 1/28$138
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Tue 2/108:01 pm
SLC
-
STL
1 stop16h 57m
Frontier
Wed 3/45:18 pm
STL
-
SLC
1 stop16h 26m
Frontier
Deal found 1/28$139
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 1/27$143
This Kiwi.com deal was found by Cheapflights users on 1/28. 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
Sun 3/86:19 pm
STL
-
SLC
1 stop15h 56m
Frontier
Deal found 1/28$146
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Tue 2/108:01 pm
SLC
-
STL
1 stop16h 57m
Frontier
Fri 3/68:12 pm
STL
-
SLC
1 stop12h 43m
Frontier
Deal found 1/28$152
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Wed 2/47:30 pm
SLC
-
STL
1 stop24h 36m
Frontier
Sat 3/78:12 pm
STL
-
SLC
1 stop11h 43m
Frontier
Deal found 1/28$155
This CheapOair deal was found by Cheapflights users on 1/28. 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 2/192:13 pm
SLC
-
STL
1 stop21h 56m
Frontier
Mon 2/231:54 pm
STL
-
SLC
1 stop24h 43m
Frontier
Deal found 1/28$159
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Wed 2/47:30 pm
SLC
-
STL
1 stop24h 36m
Frontier
Mon 3/98:12 pm
STL
-
SLC
1 stop12h 43m
Frontier
Deal found 1/28$169
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/276:44 pm
SLC
-
STL
1 stop18h 12m
Frontier
Sun 3/110:11 pm
STL
-
SLC
1 stop11h 19m
Frontier
Deal found 1/27$170
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Tue 2/108:01 pm
SLC
-
STL
1 stop16h 57m
Frontier
Sun 3/86:19 pm
STL
-
SLC
1 stop15h 56m
Frontier
Deal found 1/28$173

Find flight deals from Utah to St. Louis

Keep the following information in mind while searching for Utah to St. Louis flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$131
(Kiwi.com)

One-way from

$48
(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 Utah to Lambert-St Louis
Search Deals
One-way flight from Utah 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 Utah to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from Utah to Lambert-St Louis.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Utah 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 29, 2026.
Use the filters below to find and compare flights from Utah to St. Louis that are best for you.

Fly from

Utah

Fly to

St. Louis

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 2/10

8:01 pm-1:58 pm

1 stop16h 57m

Lambert-St Louis

Fri 3/6

8:12 pm-7:55 am

1 stop12h 43m

$152

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 2/10

8:01 pm-1:58 pm

1 stop16h 57m

Lambert-St Louis

Wed 3/4

5:18 pm-8:44 am

1 stop16h 26m

$179

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 2/9

9:19 pm-6:51 am

2 stops32h 32m

Lambert-St Louis

Sat 3/7

8:12 pm-6:55 am

1 stop11h 43m

$230

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sun 2/8

9:40 pm-12:50 pm

1 stop14h 10m

Lambert-St Louis

Tue 3/10

8:06 pm-9:00 am

1 stop13h 54m

$241

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 2/10

8:01 pm-1:58 pm

1 stop16h 57m

Lambert-St Louis

Thu 3/5

10:11 pm-7:55 am

2 stops10h 44m

$264

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 2/10

8:00 am-6:51 am

2 stops21h 51m

Lambert-St Louis

Mon 3/9

8:12 pm-7:55 am

1 stop12h 43m

$311

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sun 2/8

9:40 pm-12:50 pm

1 stop14h 10m

Lambert-St Louis

Thu 3/5

10:11 pm-9:15 am

1 stop12h 04m

$311

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 2/18

6:25 am-4:35 pm

2 stops9h 10m

Lambert-St Louis

Wed 2/25

5:55 am-1:55 pm

2 stops9h 00m

$377

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 3/12

8:35 pm-12:21 am

Nonstop2h 46m

Lambert-St Louis

Tue 3/17

7:15 am-9:37 am

Nonstop3h 22m

$399

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 3/26

1:20 pm-5:07 pm

Nonstop2h 47m

Lambert-St Louis

Sat 4/4

5:00 pm-7:17 pm

Nonstop3h 17m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Utah to St. Louis

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

What is the cheapest month to book a flight from Utah to St. Louis?

Currently, February is the cheapest month in which you can book a flight from Utah to St. Louis (average of $109). Flying from Utah 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 UT to STL?

Find hourly flight availability from Utah 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 29, 2026.

It’s typically best to fly out from Utah to St. Louis in the evening. Doing so could potentially save you 27% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Utah to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Utah to St. Louis. Price data was last updated on January 24, 2026.

Travelers seeking maximum savings on their Utah 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.

Weekly flight availability from Utah to St. Louis

Explore weekly flight availability from Utah to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 29, 2026.

The most flights from USUT to STL are scheduled on a Tuesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Related info for your journey

Find useful and relevant information for your journey from Utah 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 airport do you fly into for flights to St. Louis from Utah?

    For a flight from Utah to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

  • How long is the flight from Utah to St. Louis?

    Airlines like Frontier fly from Utah to St. Louis in about 16h 57m. The time it takes to get you to your destination can typically vary by up to . There are 1153 mi between Utah and St. Louis.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $71. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Utah to St. Louis for a low price.

  • What are the most reliable airlines from Utah to St. Louis?

    The top 3 most reliable airlines when flying from Utah to St. Louis are KLM (82%), Delta (79%) and Korean Air (69%).

  • What are the cheapest flights from Utah to St. Louis?

    While on average a flight from Utah to St. Louis is generally $374, our data shows the cheapest flight currently is $279. When looking at the most popular route, (Salt Lake City - Lambert-St Louis), you can expect to pay $222 for that flight.

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

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

  • How can I find direct flights from Utah to St. Louis?

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

  • Can I find deals for business class flights from Utah to St. Louis?

    Yes. Cheapflights offers flight deals from Utah 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 Utah to St. Louis?

    Currently, February is the cheapest month in which you can book a flight from Utah to St. Louis (average of $109). Flying from Utah 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Utah to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Newark to St. Louis flights
O'Hare Intl to Kansas City flights
John F Kennedy Intl to Kansas City flights
LaGuardia to Kansas City flights
Los Angeles to Kansas City flights
LaGuardia to St. Louis flights
Dulles Intl to St. Louis flights
Denver to St. Louis flights
Denver to Kansas City flights
Los Angeles to St. Louis flights
San Francisco to Kansas City flights
Dulles Intl to Kansas City flights
Boston to Kansas City flights
John F Kennedy Intl to St. Louis flights
Dallas/Fort Worth to St. Louis flights
Hobby to Kansas City flights
O'Hare Intl to St. Louis flights
Newark to Kansas City flights
Atlanta to St. Louis flights
Boston to St. Louis flights
Minneapolis to St. Louis flights
Dallas/Fort Worth to Kansas City flights
Reagan-National to Kansas City flights
Seattle to St. Louis flights
Baltimore to St. Louis flights
Baltimore to Kansas City flights
Hobby to St. Louis flights
Atlanta to Kansas City flights
George Bush Intcntl to Kansas City flights
Sky Harbor Intl to Kansas City flights
Seattle to Kansas City flights
Philadelphia to St. Louis flights
San Francisco to St. Louis flights
Orlando to St. Louis flights
George Bush Intcntl to St. Louis flights
Salt Lake City to Kansas City flights
Reagan-National to St. Louis flights
Minneapolis to Kansas City flights
Orlando to Kansas City flights
Sky Harbor Intl to St. Louis flights
Detroit to St. Louis flights
Tampa to St. Louis flights
Raleigh to Kansas City flights
Raleigh to St. Louis flights
Austin to Kansas City flights
Miami to St. Louis flights
Detroit to Kansas City flights
Tampa to Kansas City flights
Fort Lauderdale to St. Louis flights
San Diego to St. Louis flights

Top 5 airlines flying from Utah to St. Louis

Discover the top 5 airlines that operate flights from Utah 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 29, 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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.