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$55+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SLC
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 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.
Sat 2/282:51 pm
STL
-
SLC
1 stop18h 53m
Frontier
Tue 3/109:14 pm
SLC
-
STL
1 stop11h 35m
Frontier
Deal found 1/27$125
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 2/271:59 pm
STL
-
SLC
1 stop22h 46m
Frontier
Fri 3/69:14 pm
SLC
-
STL
1 stop11h 35m
Frontier
Deal found 1/28$131
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 2/271:59 pm
STL
-
SLC
1 stop22h 46m
Frontier
Tue 3/109:14 pm
SLC
-
STL
1 stop11h 35m
Frontier
Deal found 1/27$133
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:11 pm
STL
-
SLC
1 stop11h 19m
Frontier
Fri 2/274:13 pm
SLC
-
STL
1 stop24h 33m
Frontier
Deal found 1/26$136
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.
Sat 2/282:51 pm
STL
-
SLC
1 stop18h 53m
Frontier
Sun 3/89:14 pm
SLC
-
STL
1 stop11h 35m
Frontier
Deal found 1/27$138
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.
Mon 3/28:47 pm
STL
-
SLC
1 stop16h 14m
Frontier
Tue 3/109:14 pm
SLC
-
STL
1 stop11h 35m
Frontier
Deal found 1/27$140
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 2/271:59 pm
STL
-
SLC
1 stop22h 46m
Frontier
Tue 3/38:01 pm
SLC
-
STL
1 stop18h 52m
Frontier
Deal found 1/27$141
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 3/68:12 pm
STL
-
SLC
1 stop12h 43m
Frontier
Sun 3/89:14 pm
SLC
-
STL
1 stop11h 35m
Frontier
Deal found 1/28$144
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.
Sat 3/78:12 pm
STL
-
SLC
1 stop11h 43m
Frontier
Fri 3/139:14 pm
SLC
-
STL
1 stop11h 35m
Frontier
Deal found 1/28$145
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.
Mon 2/231:54 pm
STL
-
SLC
1 stop24h 43m
Frontier
Fri 2/279:59 pm
SLC
-
STL
1 stop14h 57m
Frontier
Deal found 1/28$146
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 2/271:59 pm
STL
-
SLC
1 stop22h 46m
Frontier
Sun 3/89:14 pm
SLC
-
STL
1 stop11h 35m
Frontier
Deal found 1/27$147
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.
Sun 2/812:03 pm
STL
-
CNY
1 stop6h 22m
Multiple Airlines
Wed 2/112:50 pm
CNY
-
STL
2 stops32h 09m
Multiple Airlines
Deal found 1/28$355

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$125
(Kiwi.com)

One-way from

$55
(Trip.com)

Popular in

January

Cheapest in

April

Average price

$569

Good round-trip deal

$382 or less

Good one-way deal

$183 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. 14% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 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 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 January 29, 2026.
Use the filters below to find and compare flights from St. Louis to Utah that are best for you.

Fly from

St. Louis

Fly to

Utah

Route

Depart

Return

Price

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 2/26

10:11 pm-8:30 am

1 stop11h 19m

Salt Lake City

Thu 3/5

10:37 pm-11:19 am

1 stop11h 42m

$173

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 3/5

10:11 pm-7:55 am

2 stops10h 44m

Salt Lake City

Sun 3/8

9:14 pm-9:49 am

1 stop11h 35m

$218

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 2/18

4:51 pm-9:49 pm

1 stop5h 58m

Salt Lake City

Sun 2/22

9:59 pm-1:09 pm

1 stop14h 10m

$260

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 3/5

10:11 pm-9:15 am

1 stop12h 04m

Salt Lake City

Mon 4/6

10:40 pm-9:48 am

2 stops34h 08m

$278

St. LouisMoab

STL - CNY

STLCNY

Lambert-St Louis

Sun 2/8

12:03 pm-5:25 pm

1 stop6h 22m

Moab Canyonlands Field

Wed 2/11

2:50 pm-11:59 pm

2 stops32h 09m

$355

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 2/26

12:50 pm-6:40 pm

1 stop6h 50m

Salt Lake City

Thu 3/5

6:35 am-1:35 pm

1 stop6h 00m

$393

St. LouisCortez

STL - CEZ

STLCEZ

Lambert-St Louis

Sat 2/28

2:51 pm-11:35 am

1 stop21h 44m

Cortez Montezuma County

Sat 3/7

11:55 am-4:24 pm

2 stops27h 29m

$397

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 2/28

2:22 pm-4:38 pm

Nonstop3h 16m

Salt Lake City

Sat 3/7

5:50 pm-9:38 pm

Nonstop2h 48m

$399

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Tue 3/31

7:15 am-9:37 am

Nonstop3h 22m

Salt Lake City

Sat 4/4

5:45 pm-9:31 pm

Nonstop2h 46m

$399

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 3/5

6:40 pm-9:04 pm

Nonstop3h 24m

Salt Lake City

Mon 4/6

8:35 pm-12:21 am

Nonstop2h 46m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 27 results
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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

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 $153). Flying from St. Louis to Utah in June is currently the most expensive (average of $262). 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 January 29, 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 22% 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 January 24, 2026.

Travelers seeking maximum savings on their St. Louis to Utah flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday 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 January 29, 2026.

The most flights from STL to USUT are scheduled on a Monday (5 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 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 January 29, 2026.
See what other customers who have flown with Southwest, Delta, and United 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
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

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
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

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
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

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
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

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
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

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
3,056 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

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 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 1 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 6h 50m. 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 $75. However, be on the lookout for offers from Southwest and American 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 - Vernal Regional or Lambert-St Louis - Cedar City, 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 KLM (87%), Korean Air (81%) or Delta (79%) 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 $136. On average you can expect to pay $635. The most popular route, (Lambert-St Louis - Salt Lake City), can usually be booked for $183.

  • 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 $153). Flying from St. Louis to Utah in June is currently the most expensive (average of $262). 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.

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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$107Average$242FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$215Average$546FlexibilityNo cancel feeOn-time69%
DeltaCheapest$258Average$417FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$260Average$414FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$276Average$386FlexibilityNo cancel feeOn-time71%

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