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

Airlines like Frontier fly from Utah to St. Louis in about 15h 07m. 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.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

While on average a flight from Utah to St. Louis is generally $549, our data shows the cheapest flight currently is $399. When looking at the most popular route, (Salt Lake City - Lambert-St Louis), you can expect to pay $263 for that flight.

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 Sun Country Air (100%), KLM (83%) and Delta (77%).

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.

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.

$62+ Flights from Utah to St. Louis

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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 December 14, 2025.

Thu 12/257:20 amSLC - STL

1 stop25h 42mFrontier

Fri 1/27:43 pmSTL - SLC

1 stop13h 29mFrontier

Deal found 12/12

$289

Sun 12/1412:36 pmSLC - STL

1 stop8h 12mFrontier

Sat 12/207:43 pmSTL - SLC

1 stop5h 24mFrontier

Deal found 12/14

$333

Mon 12/2212:51 pmSLC - STL

1 stop6h 16mFrontier

Wed 12/317:43 pmSTL - SLC

1 stop5h 24mFrontier

Deal found 12/13

$343

Mon 12/2912:51 pmSLC - STL

1 stop6h 16mFrontier

Sun 1/119:46 pmSTL - SLC

1 stop11h 44mFrontier

Deal found 12/12

$347

Fri 12/1910:25 pmSLC - STL

1 stop22h 00mFrontier

Wed 12/317:43 pmSTL - SLC

1 stop13h 29mFrontier

Deal found 12/13

$352

Sun 12/1412:36 pmSLC - STL

1 stop8h 12mFrontier

Mon 12/157:43 pmSTL - SLC

1 stop5h 24mFrontier

Deal found 12/14

$353

Mon 12/2212:51 pmSLC - STL

1 stop6h 16mFrontier

Mon 12/298:52 pmSTL - SLC

1 stop11h 49mFrontier

Deal found 12/13

$363

Wed 12/245:21 pmSLC - STL

2 stops22h 03mFrontier

Fri 1/27:43 pmSTL - SLC

1 stop13h 29mFrontier

Deal found 12/13

$366

Fri 12/268:58 pmSLC - STL

1 stop12h 04mFrontier

Fri 1/28:42 pmSTL - SLC

2 stops36h 30mFrontier

Deal found 12/13

$381

Wed 12/245:21 pmSLC - STL

2 stops22h 03mFrontier

Wed 12/317:43 pmSTL - SLC

1 stop13h 29mFrontier

Deal found 12/13

$384

Mon 12/2212:51 pmSLC - STL

1 stop6h 16mFrontier

Fri 1/27:43 pmSTL - SLC

1 stop5h 24mFrontier

Deal found 12/13

$393

Best flights from Utah to St. Louis
Discover carefully curated flight deals from Utah to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.

Thu 1/88:05 pmSLC - STL

1 stop15h 07mFrontier

Mon 1/121:07 pmSTL - SLC

1 stop23h 34mFrontier

Deal found 12/12

$155

Thu 1/156:12 pmSLC - STL

1 stop17h 28mFrontier

Sun 1/1810:09 pmSTL - SLC

1 stop11h 51mFrontier

Deal found 12/13

$174

Tue 1/2712:17 pmSLC - STL

1 stop24h 37mAlaska Airlines

Fri 1/302:50 pmSTL - SLC

1 stop9h 53mAlaska Airlines

Deal found 12/12

$357

Thu 1/2212:15 pmSLC - STL

1 stop7h 51mFrontier

Mon 1/261:40 pmSTL - SLC

1 stop11h 34mFrontier

Deal found 12/13

$182

Tue 2/248:00 amSLC - STL

2 stops21h 51mFrontier

Tue 3/108:06 pmSTL - SLC

1 stop24h 23mFrontier

Deal found 12/11

$283

Thu 1/228:20 amSLC - STL

2 stops28h 34mAlaska Airlines

Mon 1/262:50 pmSTL - SLC

1 stop9h 53mAlaska Airlines

Deal found 12/13

$363

Thu 12/257:20 amSLC - STL

1 stop25h 42mFrontier

Fri 1/27:43 pmSTL - SLC

1 stop13h 29mFrontier

Deal found 12/12

$289

Sun 2/87:00 amSLC - STL

1 stop29h 54mAlaska Airlines

Tue 2/102:50 pmSTL - SLC

1 stop24h 52mAlaska Airlines

Deal found 12/12

$373

Last-minute flights from Utah to St. Louis
Discover last-minute flight deals from Utah to St. Louis. Data last updated December 14, 2025 and is based on user searches.

Sun 1/47:20 amSLC - STL

1 stop25h 42mFrontier

Sat 1/107:43 pmSTL - SLC

1 stop16h 10mFrontier

Deal found 12/12

$184

Wed 1/74:41 pmSLC - STL

1 stop18h 31mFrontier

Mon 1/127:43 pmSTL - SLC

1 stop18h 20mFrontier

Deal found 12/13

$156

Thu 1/88:05 pmSLC - STL

1 stop15h 07mFrontier

Mon 1/121:07 pmSTL - SLC

1 stop23h 34mFrontier

Deal found 12/12

$155

Sun 1/1111:48 amSLC - STL

1 stop21h 14mFrontier

Thu 1/2910:01 pmSTL - SLC

1 stop21h 37mFrontier

Deal found 12/13

$207

Thu 1/156:12 pmSLC - STL

1 stop17h 28mFrontier

Sun 1/1810:09 pmSTL - SLC

1 stop11h 51mFrontier

Deal found 12/13

$174

Tue 1/203:24 pmSLC - STL

1 stop22h 22mFrontier

Fri 1/237:39 pmSTL - SLC

1 stop24h 15mFrontier

Deal found 12/12

$159

Thu 1/2212:15 pmSLC - STL

1 stop7h 51mFrontier

Mon 1/261:40 pmSTL - SLC

1 stop11h 34mFrontier

Deal found 12/13

$182

One-way flights from Utah to St. Louis
Search for one-way flight options from Utah to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 14, 2025.

Tue 1/63:32 pmSLC - STL

1 stop17h 30mFrontier

Deal found 12/13

$62

Fri 1/306:31 pmSLC - STL

1 stop19h 15mFrontier

Deal found 12/11

$63

Wed 1/288:35 amSLC - STL

1 stop5h 11mFrontier

Deal found 12/13

$64

Sat 1/178:40 amSLC - STL

1 stop5h 08mFrontier

Deal found 12/13

$66

Tue 1/132:18 pmSLC - STL

1 stop23h 30mFrontier

Deal found 12/12

$67

Fri 1/169:31 pmSLC - STL

1 stop16h 17mFrontier

Deal found 12/11

$68

Wed 1/1412:40 pmSLC - STL

1 stop23h 00mFrontier

Deal found 12/12

$69

Sat 1/313:49 pmSLC - STL

1 stop18h 29mFrontier

Deal found 12/11

$70

Sun 1/113:29 pmSLC - STL

1 stop17h 33mFrontier

Deal found 12/12

$74

Thu 1/88:05 pmSLC - STL

1 stop15h 07mFrontier

Deal found 12/13

$75

Thu 1/2912:15 pmSLC - STL

1 stop7h 51mFrontier

Deal found 12/13

$76

Wed 1/218:35 amSLC - STL

1 stop5h 11mFrontier

Deal found 12/13

$78

Find flight deals from Utah to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$155 (Kiwi.com)
One-way from	$62 (Trip.com)
Popular in	November
Cheapest in	February
Average price	$419
Good round-trip deal	$439 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 ($26 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 December 2025

Search Deals

Price to beat on a round-trip flight from Utah to Lambert-St Louis.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 1/8

8:05 pm-12:12 pm

1 stop15h 07m

Lambert-St Louis

Mon 1/12

1:07 pm-11:41 am

1 stop23h 34m

$155

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 1/15

6:12 pm-12:40 pm

1 stop17h 28m

Lambert-St Louis

Sun 1/18

10:09 pm-9:00 am

1 stop11h 51m

$174

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 1/22

12:15 pm-9:06 pm

1 stop7h 51m

Lambert-St Louis

Mon 1/26

1:40 pm-12:14 am

1 stop11h 34m

$182

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 2/24

8:00 am-6:51 am

2 stops21h 51m

Lambert-St Louis

Tue 3/10

8:06 pm-7:29 pm

1 stop24h 23m

$283

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 12/25

7:20 am-10:02 am

1 stop25h 42m

Lambert-St Louis

Fri 1/2

7:43 pm-8:12 am

1 stop13h 29m

$289

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 1/27

12:17 pm-1:54 pm

1 stop24h 37m

Lambert-St Louis

Fri 1/30

2:50 pm-11:43 pm

1 stop9h 53m

$357

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 1/22

8:20 am-1:54 pm

2 stops28h 34m

Lambert-St Louis

Mon 1/26

2:50 pm-11:43 pm

1 stop9h 53m

$363

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sun 2/8

7:00 am-1:54 pm

1 stop29h 54m

Lambert-St Louis

Tue 2/10

2:50 pm-2:42 pm

1 stop24h 52m

$373

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sun 2/15

6:20 am-2:23 pm

1 stop7h 03m

$186

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 1/12

3:40 pm-1:54 pm

1 stop21h 14m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 18 results

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?

It’s typically best to fly out from Utah to St. Louis in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.

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

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

Related info for your journey

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 15h 07m. 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 most reliable airlines from Utah to St. Louis?
The top 3 most reliable airlines when flying from Utah to St. Louis are Sun Country Air (100%), KLM (83%) and Delta (77%).
What are the cheapest flights from Utah to St. Louis?
While on average a flight from Utah to St. Louis is generally $549, our data shows the cheapest flight currently is $399. When looking at the most popular route, (Salt Lake City - Lambert-St Louis), you can expect to pay $263 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

Edwardsville

O'Fallon

Fairview Heights

Maryland Heights

Collinsville

Swansea

Eureka

Glencoe

St. Peters

Chesterfield

Alton

Farmington

Festus

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Top 5 airlines flying from Utah to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$125	Average$232	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$220	Average$438	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$258	Average$401	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$264	Average$448	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$359	Average$439	FlexibilityNo cancel fee	On-timeN/A

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$62+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Utah to St. Louis with Cheapflights

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Cheap flight deals from Utah to St. Louis

Cheapest flights from Utah to St. LouisExplore 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 December 14, 2025.

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 December 14, 2025.

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 December 14, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Utah to St. Louis that are best for you.

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.

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?

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 December 14, 2025.

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 December 16, 2024.

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?

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

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

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

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

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

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

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

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Alternative routes for Utah to St. Louis

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Top 5 airlines flying from Utah to St. Louis

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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 December 14, 2025.