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Cheap flights from St. Louis to Utah from $63

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Utah departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Utah

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
3:46 pm - 8:44 am
STL
-
SLC
17h 58m1 stop
Frontier Logo
9:40 pm - 12:50 pm
SLC
-
STL
14h 10m1 stop
$139Frontier
Wed, Feb 4 - Sun, Feb 8
Frontier Logo
3:46 pm - 8:44 am
STL
-
SLC
17h 58m1 stop
Frontier Logo
9:40 pm - 12:50 pm
SLC
-
STL
14h 10m1 stop
$140Frontier
Wed, Feb 4 - Sun, Feb 8
Frontier Logo
1:40 pm - 12:14 am
STL
-
SLC
11h 34m1 stop
Frontier Logo
12:15 pm - 9:06 pm
SLC
-
STL
7h 51m1 stop
$152Frontier
Mon, Feb 2 - Thu, Feb 5
Frontier Logo
1:40 pm - 12:14 am
STL
-
SLC
11h 34m1 stop
Frontier Logo
6:31 pm - 2:46 pm
SLC
-
STL
19h 15m1 stop
$154Frontier
Mon, Feb 2 - Fri, Feb 6
Frontier Logo
10:11 pm - 1:33 pm
STL
-
SLC
16h 22m1 stop
Frontier Logo
10:37 pm - 9:26 pm
SLC
-
STL
21h 49m1 stop
$155Frontier
Mon, Feb 23 - Thu, Feb 26
Frontier Logo
7:39 pm - 8:44 am
STL
-
SLC
14h 05m1 stop
Frontier Logo
9:40 pm - 12:50 pm
SLC
-
STL
14h 10m1 stop
$159Frontier
Fri, Jan 30 - Sun, Feb 1
Frontier Logo
10:10 pm - 3:04 pm
STL
-
SLC
17h 54m1 stop
Frontier Logo
8:40 am - 2:48 pm
SLC
-
STL
5h 08m1 stop
$161Frontier
Mon, Jan 5 - Wed, Jan 14
Frontier Logo
3:46 pm - 11:20 am
STL
-
SLC
20h 34m2 stops
Frontier Logo
6:31 pm - 12:50 pm
SLC
-
STL
17h 19m1 stop
$175Frontier
Wed, Feb 4 - Sun, Feb 8
Frontier Logo
10:10 pm - 3:04 pm
STL
-
SLC
17h 54m1 stop
Frontier Logo
9:40 pm - 10:02 am
SLC
-
STL
11h 22m1 stop
$177Frontier
Mon, Jan 5 - Fri, Jan 9
Delta Logo
9:00 am - 6:19 pm
STL
-
CDC
10h 19m2 stops
Delta Logo
7:00 pm - 8:07 am
CDC
-
STL
12h 07m2 stops
$839Delta
Sat, May 23 - Sat, May 30

Frontier flights from St. Louis to Utah

Our best Frontier deals on St. Louis to Utah flight tickets
Frontier
Feb 4
STL3:46 pmLambert-St Louis
17h 58m
1 stop
SLC8:44 amSalt Lake City
Feb 8
SLC9:40 pmSalt Lake City
14h 10m
1 stop
STL12:50 pmLambert-St Louis
$139
Find similar
Frontier
Feb 4
STL3:46 pmLambert-St Louis
17h 58m
1 stop
SLC8:44 amSalt Lake City
Feb 8
SLC9:40 pmSalt Lake City
14h 10m
1 stop
STL12:50 pmLambert-St Louis
$140
Find similar
Frontier
Feb 2
STL1:40 pmLambert-St Louis
11h 34m
1 stop
SLC12:14 amSalt Lake City
Feb 5
SLC12:15 pmSalt Lake City
7h 51m
1 stop
STL9:06 pmLambert-St Louis
$152
Find similar

American Airlines flights from St. Louis to Utah

Our best American Airlines deals on St. Louis to Utah flight tickets
American Airlines
Jan 1
STL9:36 amLambert-St Louis
13h 58m
1 stop
SLC10:34 pmSalt Lake City
Jan 4
SLC4:59 pmSalt Lake City
7h 26m
1 stop
STL1:25 amLambert-St Louis
$650
Find similar
American Airlines
Dec 22
STL3:30 pmLambert-St Louis
6h 17m
1 stop
SLC8:47 pmSalt Lake City
Dec 29
SLC10:58 amSalt Lake City
7h 24m
2 stops
STL7:22 pmLambert-St Louis
$724
Find similar
American Airlines
Dec 26
STL2:43 pmLambert-St Louis
5h 48m
1 stop
SLC7:31 pmSalt Lake City
Dec 30
SLC10:58 amSalt Lake City
7h 24m
2 stops
STL7:22 pmLambert-St Louis
$814
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
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

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 2/4

3:46 pm-8:44 am

1 stop17h 58m

Salt Lake City

Sun 2/8

9:40 pm-12:50 pm

1 stop14h 10m

$139

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 2/4

3:46 pm-8:44 am

1 stop17h 58m

Salt Lake City

Sun 2/8

9:40 pm-12:50 pm

1 stop14h 10m

$140

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 2/2

1:40 pm-12:14 am

1 stop11h 34m

Salt Lake City

Thu 2/5

12:15 pm-9:06 pm

1 stop7h 51m

$152

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 2/2

1:40 pm-12:14 am

1 stop11h 34m

Salt Lake City

Fri 2/6

6:31 pm-2:46 pm

1 stop19h 15m

$154

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 2/23

10:11 pm-1:33 pm

1 stop16h 22m

Salt Lake City

Thu 2/26

10:37 pm-9:26 pm

1 stop21h 49m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 1/30

7:39 pm-8:44 am

1 stop14h 05m

Salt Lake City

Sun 2/1

9:40 pm-12:50 pm

1 stop14h 10m

$159

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 1/5

10:10 pm-3:04 pm

1 stop17h 54m

Salt Lake City

Wed 1/14

8:40 am-2:48 pm

1 stop5h 08m

$161

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 2/4

3:46 pm-11:20 am

2 stops20h 34m

Salt Lake City

Sun 2/8

6:31 pm-12:50 pm

1 stop17h 19m

$175

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 1/5

10:10 pm-3:04 pm

1 stop17h 54m

Salt Lake City

Fri 1/9

9:40 pm-10:02 am

1 stop11h 22m

$177

St. LouisCedar City

STL - CDC

STLCDC

Lambert-St Louis

Sat 5/23

9:00 am-6:19 pm

2 stops10h 19m

Cedar City

Sat 5/30

7:00 pm-8:07 am

2 stops12h 07m

$839

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Utah from

How to get the cheapest flight ticket from St. Louis to Utah

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Utah?

The cheapest month to fly to Utah from St. Louis is in April. Flight prices, which tend to average around $359, are often lower during this time because this is during the off-season. If you aren’t able to travel to Utah during the month of April, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $399.

What is the cheapest day to depart on your flight to Utah?

The cheapest day to depart on your flight to Utah is on a Tuesday when prices can be found for as low as $377. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Utah is Sunday, with ticket prices averaging around $477.

What is the cheapest time of day to depart on your flight to Utah?

Our data shows that the cheapest St. Louis to Utah flights are usually those with departure times in the evening. Our users have found flights to Utah in the evening for as low as $357. Flights to Utah are more costly in the morning, with an average ticket price of $454. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Lambert-St Louis to Utah flight route?

Fly from Lambert-St Louis to Salt Lake City for the best Lambert-St Louis - Utah flight prices

How far in advance should I book a flight to Utah?

You are more likely to see cheaper flights to Utah from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Utah for around $430 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Utah from St. Louis for as low as $389 on momondo.

What cabin class options are available on Lambert-St Louis to Utah flights?

There are 4 cabin classes available to choose from on Lambert-St Louis to Utah flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap St. Louis to Utah flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Utah

Best Price Found

$219

Fastest flight time

3h 14m

Direct flights

Every day

Airports in Utah

51 airports
The best one-way flight to Utah from St. Louis in the past 72 hours is $219. The best round-trip flight deal from St. Louis to Utah found on momondo in the last 72 hours is $359.
The fastest flight from St. Louis to Utah takes 3h 14m
Direct flights go from St. Louis to Utah every day.
There are 51 airports in Utah. From St. Louis there are direct flights to Salt Lake City (SLC).
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Utah?

    Prices for flights from Lambert-St Louis Airport to Utah refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Utah?

  • How old do you have to be to fly from Lambert-St Louis Airport to Utah?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Utah.

  • What documentation or ID do you need to fly to Utah?

    The travel and health documents you'll need for your trip to Utah may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Utah. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Utah?

Best airlines flying from St. Louis to Utah

Compare and see reviews for airlines that fly from St. Louis to Utah with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $115Free CancellationRating
5.8
3,081 reviews
Search Frontier flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,005 reviews
Search Delta flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $290Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
SouthwestPriceFrom $306Free CancellationRating
7.9
4,250 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Utah?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Utah. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Utah with flexible booking policies on momondo?

momondo does allow users to show only those flights to Utah from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Utah?

Once all potential St. Louis to Utah flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Utah right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Utah from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Utah trip

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