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$65+ Cheap flights from St. Louis (STL) to Utah

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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SLC
Jun 6 — Jun 131
Sat 6/6
Sat 6/13
1 adult, Economy
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Cheap flight deals from St. Louis to Utah

Cheapest flights from St. Louis to Utah
Explore the most affordable flight options available from St. Louis to Utah. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 7, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/28:08 pm
STL
-
SLC
1 stop12h 30m
Frontier
Tue 6/91:12 pm
SLC
-
STL
1 stop5h 11m
Frontier
Deal found 5/5$155
This Expedia deal was found by Cheapflights users on 5/2. 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.
Sun 5/249:06 pm
STL
-
SLC
1 stop13h 24m
Frontier
Mon 5/2512:14 am
SLC
-
STL
1 stop22h 43m
Frontier
Deal found 5/2$160
This CheapOair deal was found by Cheapflights users on 5/3. 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.
Tue 5/196:51 pm
STL
-
SLC
1 stop15h 39m
Frontier
Mon 5/2512:14 am
SLC
-
STL
1 stop22h 43m
Frontier
Deal found 5/3$191
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 5/268:08 pm
STL
-
SLC
1 stop12h 30m
Frontier
Fri 5/2910:54 pm
SLC
-
STL
2 stops19h 37m
Frontier
Deal found 5/3$201
This Orbitz deal was found by Cheapflights users on 5/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:06 pm
STL
-
SLC
1 stop13h 24m
Frontier
Sun 6/710:54 pm
SLC
-
STL
1 stop19h 29m
Frontier
Deal found 5/2$205
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Mon 5/258:08 pm
STL
-
SLC
1 stop12h 30m
Frontier
Mon 6/110:54 pm
SLC
-
STL
1 stop19h 29m
Frontier
Deal found 5/4$208
This CheapOair deal was found by Cheapflights users on 5/4. 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.
Mon 6/19:21 pm
STL
-
SLC
1 stop13h 09m
Frontier
Fri 6/510:54 pm
SLC
-
STL
1 stop19h 29m
Frontier
Deal found 5/4$210
This CheapOair deal was found by Cheapflights users on 5/3. 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 6/49:06 pm
STL
-
SLC
1 stop13h 24m
Frontier
Tue 6/91:12 pm
SLC
-
STL
1 stop5h 11m
Frontier
Deal found 5/3$211
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/168:08 pm
STL
-
SLC
1 stop12h 23m
Frontier
Tue 6/2310:50 pm
SLC
-
STL
2 stops18h 28m
Frontier
Deal found 5/6$214
This CheapOair deal was found by Cheapflights users on 5/2. 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.
Tue 5/126:51 pm
STL
-
SLC
1 stop15h 39m
Frontier
Tue 5/261:32 pm
SLC
-
STL
1 stop27h 34m
Frontier
Deal found 5/2$217
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/206:51 pm
STL
-
VEL
2 stops25h 14m
Multiple Airlines
Sun 5/248:30 am
VEL
-
STL
1 stop9h 53m
Multiple Airlines
Deal found 5/5$563
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/49:06 pm
STL
-
CNY
2 stops21h 04m
Multiple Airlines
Thu 6/113:00 pm
CNY
-
STL
1 stop26h 53m
Multiple Airlines
Deal found 5/5$578

Find flight deals from St. Louis to Utah

Keep the following information in mind while searching for St. Louis to Utah flight deals. Data was last updated May 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$155
(Kiwi.com)

One-way from

$65
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$439

Good round-trip deal

$389 or less

Good one-way deal

$208 or less
Provider with most accurate pricing for Lambert-St Louis-Salt Lake City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Salt Lake City flights.
Search Deals
From Lambert-St Louis to Utah
Search Deals
One-way flight from Lambert-St Louis to Utah
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Utah.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Utah.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Utah 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 May 7, 2026.
Use the filters below to find and compare flights from St. Louis to Utah that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 8/29

5:00 pm-7:09 pm

Nonstop3h 09m

Salt Lake City

Mon 9/7

9:30 am-1:21 pm

Nonstop2h 51m

$439

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 10/2

2:15 pm-4:29 pm

Nonstop3h 14m

Salt Lake City

Fri 10/9

8:45 pm-12:36 am

Nonstop2h 51m

$439

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 7/1

2:28 pm-4:40 pm

Nonstop3h 12m

Salt Lake City

Tue 7/7

3:10 pm-7:00 pm

Nonstop2h 50m

$439

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 7/1

8:30 am-4:20 pm

2 stops8h 50m

Salt Lake City

Tue 7/7

10:20 am-6:25 pm

2 stops7h 05m

$441

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 10/30

9:45 am-4:40 pm

1 stop7h 55m

Salt Lake City

Fri 11/6

2:10 pm-5:56 pm

Nonstop2h 46m

$449

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 7/18

8:00 am-10:12 am

Nonstop3h 12m

Salt Lake City

Sat 7/25

8:30 am-4:46 pm

1 stop7h 16m

$449

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 10/1

8:50 am-2:25 pm

1 stop6h 35m

Salt Lake City

Sun 10/4

8:45 pm-12:36 am

Nonstop2h 51m

$449

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 7/1

8:00 am-10:12 am

Nonstop3h 12m

Salt Lake City

Thu 7/9

8:50 pm-12:41 am

Nonstop2h 51m

$449

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Tue 9/15

8:50 am-2:25 pm

1 stop6h 35m

Salt Lake City

Sun 9/20

8:45 pm-12:36 am

Nonstop2h 51m

$449

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 6/13

11:18 am-4:25 pm

1 stop6h 07m

Salt Lake City

Wed 6/17

8:50 pm-12:43 am

Nonstop2h 53m

$449

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/6

Showing 1-10 of 26 resultsSorted by cheapest first
1
2
3

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

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

How far ahead should I book a flight from St. Louis to Utah?

The best time to book flights from St. Louis to Utah is 36 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Utah (average of $77). Flying from St. Louis to Utah in March is currently the most expensive (average of $171). 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 STL to UT?

Find hourly flight availability from St. Louis to Utah. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 7, 2026.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Utah in the evening. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Utah. Price data was last updated on May 2, 2026.

Travelers seeking maximum savings on their St. Louis to Utah flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from St. Louis to Utah

Explore weekly flight availability from St. Louis to Utah. 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 May 7, 2026.

The most flights from STL to USUT are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from St. Louis to Utah?

Reviews of airlines servicing Utah

Get insights into the airlines that provide service to Utah. 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 Utah. Reviews last updated May 7, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from St. Louis to Utah have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,301 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
7.9
Good
4,301 reviews
Southwest
7.9
Good
4,301 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,459 reviews
Southwest
7.9
Good
4,301 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,690 reviews
Southwest
7.9
Good
4,301 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,669 reviews
Southwest
7.9
Good
4,301 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.6
Fair
2,964 reviews
Southwest
7.9
Good
4,301 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Utah. 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 from for flights from St. Louis to Utah?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Utah. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How popular is this St. Louis to Utah flight route?

    The Lambert-St Louis to Utah flight path was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Departing from St. Louis to Utah will take you 3h 09m. The distance from St. Louis to Utah is about 1153 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $77. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from St. Louis to Utah for a low price.

  • What are the most popular routes from St. Louis to Utah?

    While some choose either Lambert-St Louis - Cedar City or Lambert-St Louis - Cortez Montezuma County, Lambert-St Louis - Salt Lake City is the most popular route from St. Louis to Utah.

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

    No one likes to see their flight delayed. When booking a flight from St. Louis to Utah consider choosing China Eastern (88%), Virgin Atlantic (84%) or Korean Air (84%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from St. Louis to Utah is $124. On average you can expect to pay $937. The most popular route, (Lambert-St Louis - Salt Lake City), can usually be booked for $270.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Utah (average of $77). Flying from St. Louis to Utah in March is currently the most expensive (average of $171). 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

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Alternative routes for St. Louis to Utah

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from St. Louis to Utah

Discover the top 5 airlines that operate flights from St. Louis to Utah. 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 May 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$105Average$221FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$244Average$420FlexibilityNo cancel feeOn-time63%
DeltaCheapest$258Average$385FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$263Average$423FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$298Average$448FlexibilityNo cancel feeOn-time69%

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