How many flights depart from Utah to St. Louis on average per day?

As of September 2025, there are 4 flights per day flying from Utah to St. Louis. The most common time of day flights depart is 8:00PM, with 42% of flights taking off in the evening.

What airlines fly to St. Louis?

Delta, Frontier and Southwest are the top three most popular airlines that fly to St. Louis from Utah according to our data. Delta is the first choice among our users, with 63% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

How many flights depart from Utah to St. Louis on average per week?

33 flights are operational weekly from Utah to St. Louis as of September 2025. The most popular departure day for this route is Wed, with 18% of flights per week taking off on this day.

What is the cheapest airline that flies from Utah to Lambert-St Louis?

Frontier is the most popular carrier operating from Utah to Lambert-St Louis

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

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

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

The number of operators available for flights from Utah to Lambert-St Louis Airport is 5 as of September 2025.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Utah to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents you'll need for your trip to Lambert-St Louis Airport 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 Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$46 Cheap Flights from Utah to St. Louis in 2025/26

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Find the cheapest flights from Utah to St. Louis

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:58 pm - 9:32 amSLC-STL

11h 34m1 stop

1:09 pm - 7:00 pmSTL-SLC

6h 51m1 stop

$144Frontier

Find Deal

Sun, Oct 26 - Fri, Oct 31

1:42 pm - 9:06 amSLC-STL

18h 24m1 stop

7:55 pm - 7:32 amSTL-SLC

12h 37m1 stop

$156Frontier

Find Deal

Wed, Oct 1 - Sat, Oct 4

2:27 pm - 9:06 amSLC-STL

17h 39m2 stops

7:55 pm - 11:35 amSTL-SLC

16h 40m1 stop

$233Multiple Airlines

Find Deal

Thu, Oct 2 - Mon, Oct 6

10:39 am - 3:18 pmSLC-STL

27h 39m2 stops

7:45 pm - 12:01 amSTL-SLC

5h 16m1 stop

$295Multiple Airlines

Find Deal

Tue, Oct 28 - Fri, Nov 7

10:50 am - 4:55 pmSLC-STL

5h 05m1 stop

6:00 am - 10:50 amSTL-SLC

5h 50m1 stop

$343Southwest

Find Deal

Sat, Jan 31 - Tue, Feb 3

5:30 am - 1:20 pmSLC-STL

6h 50m1 stop

1:45 pm - 8:25 pmSTL-SLC

7h 40m2 stops

$353Southwest

Find Deal

Wed, Nov 5 - Sat, Nov 8

3:43 pm - 12:03 amSLC-STL

7h 20m1 stop

7:00 am - 2:29 pmSTL-SLC

8h 29m1 stop

$373Hawaiian Airlines

Find Deal

Wed, Oct 22 - Sun, Oct 26

10:39 am - 3:18 pmSLC-STL

27h 39m2 stops

7:00 am - 2:29 pmSTL-SLC

8h 29m1 stop

$393Alaska Airlines

Find Deal

Tue, Oct 28 - Fri, Oct 31

3:43 pm - 11:54 pmSLC-STL

7h 11m1 stop

7:00 am - 2:49 pmSTL-SLC

8h 49m1 stop

$408Alaska Airlines

Find Deal

Fri, Nov 21 - Sun, Nov 23

12:15 pm - 11:56 pmSLC-STL

10h 41m1 stop

2:55 pm - 11:47 pmSTL-SLC

9h 52m1 stop

$411Hawaiian Airlines

Find Deal

Thu, Feb 26 - Mon, Mar 2

United Airlines flights from Utah to St. Louis

Our best United Airlines deals on Utah to St. Louis flight tickets

United Airlines

Oct 28

SLC7:00 amSalt Lake City

13h 54m

1 stop

STL9:54 pmLambert-St Louis

Oct 31

STL4:43 pmLambert-St Louis

18h 01m

1 stop

SLC9:44 amSalt Lake City

$403

Find similar

United Airlines

Nov 24

SLC7:00 amSalt Lake City

7h 46m

2 stops

STL3:46 pmLambert-St Louis

Nov 28

STL4:43 pmLambert-St Louis

6h 17m

1 stop

SLC10:00 pmSalt Lake City

$444

Find similar

United Airlines

Nov 24

SLC1:00 pmSalt Lake City

7h 54m

1 stop

STL9:54 pmLambert-St Louis

Nov 28

STL4:43 pmLambert-St Louis

5h 15m

1 stop

SLC8:58 pmSalt Lake City

$456

Find similar

Frontier flights from Utah to St. Louis

Our best Frontier deals on Utah to St. Louis flight tickets

Frontier

Oct 26

SLC8:58 pmSalt Lake City

11h 34m

1 stop

STL9:32 amLambert-St Louis

Oct 31

STL1:09 pmLambert-St Louis

6h 51m

1 stop

SLC7:00 pmSalt Lake City

$144

Find similar

Frontier

Oct 1

SLC1:42 pmSalt Lake City

18h 24m

1 stop

STL9:06 amLambert-St Louis

Oct 4

STL7:55 pmLambert-St Louis

12h 37m

1 stop

SLC7:32 amSalt Lake City

$156

Find similar

Frontier

Oct 23

SLC9:18 amSalt Lake City

25h 25m

1 stop

STL11:43 amLambert-St Louis

Oct 26

STL7:52 pmLambert-St Louis

15h 21m

1 stop

SLC10:13 amSalt Lake City

$172

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sun 10/26

8:58 pm-9:32 am

1 stop11h 34m

Lambert-St Louis

Fri 10/31

1:09 pm-7:00 pm

1 stop6h 51m

$144

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 10/1

1:42 pm-9:06 am

1 stop18h 24m

Lambert-St Louis

Sat 10/4

7:55 pm-7:32 am

1 stop12h 37m

$156

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 10/2

2:27 pm-9:06 am

2 stops17h 39m

Lambert-St Louis

Mon 10/6

7:55 pm-11:35 am

1 stop16h 40m

$233

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 10/28

10:39 am-3:18 pm

2 stops27h 39m

Lambert-St Louis

Fri 11/7

7:45 pm-12:01 am

1 stop5h 16m

$295

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sat 1/31

10:50 am-4:55 pm

1 stop5h 05m

Lambert-St Louis

Tue 2/3

6:00 am-10:50 am

1 stop5h 50m

$343

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 11/5

5:30 am-1:20 pm

1 stop6h 50m

Lambert-St Louis

Sat 11/8

1:45 pm-8:25 pm

2 stops7h 40m

$353

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 10/22

3:43 pm-12:03 am

1 stop7h 20m

Lambert-St Louis

Sun 10/26

7:00 am-2:29 pm

1 stop8h 29m

$373

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 10/28

10:39 am-3:18 pm

2 stops27h 39m

Lambert-St Louis

Fri 10/31

7:00 am-2:29 pm

1 stop8h 29m

$393

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 11/21

3:43 pm-11:54 pm

1 stop7h 11m

Lambert-St Louis

Sun 11/23

7:00 am-2:49 pm

1 stop8h 49m

$408

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 2/26

12:15 pm-11:56 pm

1 stop10h 41m

Lambert-St Louis

Mon 3/2

2:55 pm-11:47 pm

1 stop9h 52m

$411

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Other information

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

In general, February is the cheapest month to fly from Utah to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $359. The month of April is another great option to travel to St. Louis, with average flight prices from Utah averaging around $389.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $426. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $519. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Utah in the evening is the least expensive time of day to depart. momondo users have found prices as low as $418 when looking at flights departing in the evening. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $489 per ticket.

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

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

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

You are more likely to see cheaper flights to St. Louis from Utah when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $420 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Utah for as low as $359 on momondo.

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

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

Cheap Utah to St. Louis flight deals and tips

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

Best Price Found	$398
Fastest flight time	2h 46m
Direct flights	Mon, Wed, Thu, Fri, Sat and Sun
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Utah in the past 72 hours is $398. The best round-trip flight deal from Utah to St. Louis found on momondo in the last 72 hours is $419.

The fastest flight from Utah to St. Louis takes 2h 46m

Direct flights go from Utah to St. Louis on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Delta.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Utah to Lambert-St Louis Airport?
Prices for flights from Utah to Lambert-St Louis Airport are updated daily.
How many operators does momondo search for flights from Utah to Lambert-St Louis Airport?
The number of operators available for flights from Utah to Lambert-St Louis Airport is 5 as of September 2025.
How old do you have to be to fly from Utah to Lambert-St Louis Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Utah to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis Airport 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 Lambert-St Louis Airport. 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 Utah to St. Louis?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Utah to St. Louis is Airbus A220-100 (46.67% of total bookings). The next most popular plane models are Airbus A319 (26.67%), Airbus A220-300 (14.17%), and Boeing 737-800 Passenger/BBJ2 (winglets) (4.17%).

Best airlines flying from Utah to St. Louis

Compare and see reviews for airlines that fly from Utah to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $118	Free Cancellation	Rating 5.8 3,171 reviews	Search Frontier flights
United Airlines	PriceFrom $298	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Southwest	PriceFrom $318	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
American Airlines	PriceFrom $327	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $359	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Fenton

Collinsville

Wentzville

Alton

St. Peters

Farmington

Festus

Glencoe

Clayton

Edwardsville

Eureka

Litchfield

Shrewsbury

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Utah.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Utah with this policy.

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

momondo provides multiple filters to help you find the best flight to St. Louis from Utah. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Utah to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.