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

Airlines like Frontier fly from Utah to St. Louis in about 10h 21m. 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 $498, our data shows the cheapest flight currently is $268. When looking at the most popular route, (Salt Lake City - Lambert-St Louis), you can expect to pay $180 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 SkyWest Airlines (100%), Sun Country Air (100%) and Southwest (100%).

What are the most popular airlines that fly from Utah to St. Louis?

The most popular airlines flying from Utah to St. Louis are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

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

To save on the cost of your flight from Utah to St. Louis, book at least 48 days before your planned departure. Booking around this time can save you about 30% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $260 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $564.

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

Flights from Utah to St. Louis lean towards being more expensive in December. Prices are generally better when you fly from Utah to St. Louis in August, with the cheapest ticket starting at $135.

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.

$59+ Flights from Utah to St. Louis

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Cheap flight deals from Utah to St. Louis

Round-trip from	$128 (Kiwi.com)
One-way from	$59 (Trip.com)
Popular in	December
Cheapest in	August
Average price	$434
Good round-trip deal	$419 or less
Good one-way deal	$398 or less

From Utah to Lambert-St Louis

Search Deals

One-way flight from Utah to Lambert-St Louis

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Highest demand for flights based on searches. 9% potential increase in price ($41 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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

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Price to beat on a one-way flight from Utah to Lambert-St Louis.

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Find 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 September 11, 2025.

Tue 10/2812:35 pmSLC - STL

1 stop19h 32mFrontier

Sat 11/87:45 pmSTL - SLC

1 stop12h 47mFrontier

Deal found 9/10

$128

Sun 11/28:10 pmSLC - STL

1 stop11h 57mFrontier

Sat 11/87:45 pmSTL - SLC

1 stop12h 47mFrontier

Deal found 9/10

$131

Sun 11/94:50 pmSLC - STL

1 stop15h 17mFrontier

Wed 11/127:45 pmSTL - SLC

1 stop12h 47mFrontier

Deal found 9/11

$135

Thu 10/29:45 pmSLC - STL

1 stop10h 21mFrontier

Sun 10/57:55 pmSTL - SLC

1 stop12h 37mFrontier

Deal found 9/11

$147

Wed 9/248:45 amSLC - STL

1 stop23h 21mFrontier

Wed 10/298:40 pmSTL - SLC

1 stop15h 55mFrontier

Deal found 9/10

$149

Mon 9/229:45 pmSLC - STL

1 stop10h 21mFrontier

Fri 9/262:38 pmSTL - SLC

1 stop6h 09mFrontier

Deal found 9/10

$154

Tue 9/231:42 pmSLC - STL

1 stop18h 24mFrontier

Sat 9/277:55 pmSTL - SLC

1 stop12h 37mFrontier

Deal found 9/9

$155

Tue 10/1412:30 pmSLC - STL

1 stop19h 37mFrontier

Fri 10/1710:59 pmSTL - SLC

1 stop13h 46mFrontier

Deal found 9/9

$157

Thu 11/68:10 pmSLC - STL

1 stop11h 57mFrontier

Sun 11/912:10 pmSTL - SLC

1 stop6h 00mFrontier

Deal found 9/11

$158

Tue 9/238:45 amSLC - STL

1 stop23h 21mFrontier

Wed 9/247:55 pmSTL - SLC

1 stop19h 30mFrontier

Deal found 9/11

$162

Sat 9/209:58 pmSLC - STL

1 stop10h 08mFrontier

Thu 9/257:55 pmSTL - SLC

1 stop12h 37mFrontier

Deal found 9/9

$163

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 September 11, 2025.

Mon 9/229:45 pmSLC - STL

1 stop10h 21mFrontier

Thu 9/257:55 pmSTL - SLC

1 stop12h 37mFrontier

Deal found 9/9

$163

Sat 10/42:35 pmSLC - STL

1 stop5h 25mSouthwest

Tue 10/75:05 pmSTL - SLC

1 stop7h 05mSouthwest

Deal found 9/9

$279

Wed 9/241:42 pmSLC - STL

1 stop18h 24mFrontier

Thu 9/257:55 pmSTL - SLC

1 stop12h 37mFrontier

Deal found 9/9

$163

Mon 9/229:45 pmSLC - STL

1 stop10h 21mFrontier

Sun 9/282:38 pmSTL - SLC

1 stop21h 04mFrontier

Deal found 9/9

$193

Thu 10/910:05 pmSLC - STL

1 stop10h 02mFrontier

Thu 10/1610:17 amSTL - SLC

1 stop10h 46mFrontier

Deal found 9/9

$227

Thu 9/259:45 pmSLC - STL

1 stop10h 21mFrontier

Tue 9/307:55 pmSTL - SLC

1 stop17h 51mFrontier

Deal found 9/9

$228

Sat 10/116:30 amSLC - STL

2 stops25h 52mFrontier

Sun 10/127:52 pmSTL - SLC

1 stop15h 21mFrontier

Deal found 9/10

$230

Wed 9/246:05 pmSLC - STL

2 stops14h 01mFrontier

Tue 9/307:55 pmSTL - SLC

1 stop17h 51mFrontier

Deal found 9/9

$244

Sat 9/209:58 pmSLC - STL

1 stop10h 08mFrontier

Mon 9/299:29 pmSTL - SLC

2 stops16h 17mFrontier

Deal found 9/9

$267

Thu 9/259:45 pmSLC - STL

1 stop10h 21mFrontier

Fri 9/269:35 pmSTL - SLC

2 stops15h 04mFrontier

Deal found 9/9

$277

Last-minute flights from Utah to St. Louis
Discover last-minute flight deals from Utah to St. Louis. Data last updated September 11, 2025 and is based on user searches.

Wed 9/178:45 amSLC - STL

1 stop23h 21mFrontier

Wed 9/247:55 pmSTL - SLC

1 stop19h 30mFrontier

Deal found 9/10

$164

Sat 9/209:58 pmSLC - STL

1 stop10h 08mFrontier

Tue 9/307:55 pmSTL - SLC

1 stop17h 51mFrontier

Deal found 9/9

$163

Mon 9/229:45 pmSLC - STL

1 stop10h 21mFrontier

Fri 9/262:38 pmSTL - SLC

1 stop6h 09mFrontier

Deal found 9/10

$154

Tue 9/231:42 pmSLC - STL

1 stop18h 24mFrontier

Sat 9/277:55 pmSTL - SLC

1 stop12h 37mFrontier

Deal found 9/9

$155

Tue 9/238:45 amSLC - STL

1 stop23h 21mFrontier

Wed 9/247:55 pmSTL - SLC

1 stop19h 30mFrontier

Deal found 9/11

$162

Wed 9/248:45 amSLC - STL

1 stop23h 21mFrontier

Wed 10/298:40 pmSTL - SLC

1 stop15h 55mFrontier

Deal found 9/10

$149

Mon 9/299:45 pmSLC - STL

1 stop10h 21mFrontier

Tue 9/307:55 pmSTL - SLC

1 stop27h 31mFrontier

Deal found 9/10

$167

Thu 10/29:45 pmSLC - STL

1 stop10h 21mFrontier

Sun 10/57:55 pmSTL - SLC

1 stop12h 37mFrontier

Deal found 9/11

$147

Tue 10/1412:30 pmSLC - STL

1 stop19h 37mFrontier

Fri 10/1710:59 pmSTL - SLC

1 stop13h 46mFrontier

Deal found 9/9

$157

Tue 10/2812:35 pmSLC - STL

1 stop19h 32mFrontier

Sat 11/87:45 pmSTL - SLC

1 stop12h 47mFrontier

Deal found 9/10

$128

Wed 10/298:00 amSLC - STL

1 stop24h 07mFrontier

Thu 10/308:40 pmSTL - SLC

1 stop11h 52mFrontier

Deal found 9/10

$166

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 September 11, 2025.

Thu 10/165:45 pmSLC - STL

1 stop14h 22mFrontier

Deal found 9/9

$59

Sat 11/18:10 pmSLC - STL

1 stop12h 57mFrontier

Deal found 9/9

$61

Tue 10/1412:30 pmSLC - STL

1 stop19h 37mFrontier

Deal found 9/9

$65

Mon 10/69:45 pmSLC - STL

1 stop10h 22mFrontier

Deal found 9/10

$66

Fri 10/1710:05 pmSLC - STL

1 stop10h 02mFrontier

Deal found 9/9

$67

Sun 10/1210:05 pmSLC - STL

1 stop10h 02mFrontier

Deal found 9/10

$68

Fri 10/242:23 pmSLC - STL

1 stop6h 51mFrontier

Deal found 9/10

$72

Tue 10/2812:35 pmSLC - STL

1 stop19h 32mFrontier

Deal found 9/10

$77

Fri 10/319:28 amSLC - STL

1 stop9h 44mFrontier

Deal found 9/10

$78

Tue 10/712:30 pmSLC - STL

1 stop19h 37mFrontier

Deal found 9/11

$79

Wed 10/11:42 pmSLC - STL

1 stop18h 24mFrontier

Deal found 9/9

$80

Fly from

Fly to

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 9/22

9:45 pm-9:06 am

1 stop10h 21m

Lambert-St Louis

Thu 9/25

7:55 pm-7:32 am

1 stop12h 37m

$163

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 9/24

1:42 pm-9:06 am

1 stop18h 24m

Lambert-St Louis

Thu 9/25

7:55 pm-7:32 am

1 stop12h 37m

$163

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 9/22

9:45 pm-9:06 am

1 stop10h 21m

Lambert-St Louis

Sun 9/28

2:38 pm-10:42 am

1 stop21h 04m

$193

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 10/9

10:05 pm-9:07 am

1 stop10h 02m

Lambert-St Louis

Thu 10/16

10:17 am-8:03 pm

1 stop10h 46m

$227

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 9/25

9:45 pm-9:06 am

1 stop10h 21m

Lambert-St Louis

Tue 9/30

7:55 pm-12:46 pm

1 stop17h 51m

$228

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sat 10/11

6:30 am-9:22 am

2 stops25h 52m

Lambert-St Louis

Sun 10/12

7:52 pm-10:13 am

1 stop15h 21m

$230

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 9/24

6:05 pm-9:06 am

2 stops14h 01m

Lambert-St Louis

Tue 9/30

7:55 pm-12:46 pm

1 stop17h 51m

$244

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sat 9/20

9:58 pm-9:06 am

1 stop10h 08m

Lambert-St Louis

Mon 9/29

9:29 pm-12:46 pm

2 stops16h 17m

$267

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 9/25

9:45 pm-9:06 am

1 stop10h 21m

Lambert-St Louis

Fri 9/26

9:35 pm-11:39 am

2 stops15h 04m

$277

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sat 10/4

2:35 pm-9:00 pm

1 stop5h 25m

Lambert-St Louis

Tue 10/7

5:05 pm-11:10 pm

1 stop7h 05m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 22 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, August is the cheapest month in which you can book a flight from Utah to St. Louis (average of $311). Flying from Utah to St. Louis in March is currently the most expensive (average of $356). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Utah to St. Louis as you normally would.

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 10h 21m. 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 SkyWest Airlines (100%), Sun Country Air (100%) and Southwest (100%).
What are the cheapest flights from Utah to St. Louis?
While on average a flight from Utah to St. Louis is generally $498, our data shows the cheapest flight currently is $268. When looking at the most popular route, (Salt Lake City - Lambert-St Louis), you can expect to pay $180 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, August is the cheapest month in which you can book a flight from Utah to St. Louis (average of $311). Flying from Utah to St. Louis in March is currently the most expensive (average of $356). 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

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$118	Average$225	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$298	Average$406	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$318	Average$456	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$327	Average$407	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$359	Average$457	FlexibilityNo cancel fee	On-timeN/A

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$59+ 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 10/16. 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

Keep the following information in mind while searching for Utah to St. Louis flight deals. Data was last updated September 11, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find 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 September 11, 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 September 11, 2025.

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 September 11, 2025.

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?

Traveling to a place near 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 September 11, 2025.