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

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 62% 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 day?

As of November 2025, there are 3 flights per day flying from Utah to St. Louis. The most common time of day flights depart is 2:00PM, with 51% of flights taking off in the afternoon.

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

22 flights are operational weekly from Utah to St. Louis as of November 2025. The most popular departure day for this route is Tue, with 23% of flights per week taking off on this day.

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 November 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.

$55 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

Enter your travel dates to find the best prices.

1:10 pm - 9:07 amSLC-STL

18h 57m1 stop

9:54 pm - 4:45 pmSTL-SLC

19h 51m1 stop

$110Frontier

Find Deal

Tue, Nov 18 - Thu, Nov 20

10:05 am - 10:14 amSLC-STL

23h 09m1 stop

7:43 pm - 11:37 amSTL-SLC

16h 54m1 stop

$119Frontier

Find Deal

Thu, Dec 4 - Mon, Dec 8

2:38 pm - 4:49 pmSLC-STL

25h 11m1 stop

7:43 pm - 1:31 pmSTL-SLC

18h 48m1 stop

$121Frontier

Find Deal

Thu, Jan 22 - Wed, Jan 28

10:12 pm - 10:02 amSLC-STL

10h 50m1 stop

7:43 pm - 12:06 amSTL-SLC

5h 23m1 stop

$127Frontier

Find Deal

Thu, Nov 20 - Mon, Nov 24

10:12 pm - 10:02 amSLC-STL

10h 50m1 stop

7:43 pm - 12:06 amSTL-SLC

5h 23m1 stop

$140Frontier

Find Deal

Thu, Nov 20 - Sat, Nov 22

6:41 pm - 10:02 amSLC-STL

14h 21m1 stop

7:43 pm - 3:39 pmSTL-SLC

20h 56m2 stops

$162Frontier

Find Deal

Thu, Jan 22 - Wed, Jan 28

7:20 am - 10:02 amSLC-STL

25h 42m1 stop

10:10 pm - 1:05 pmSTL-SLC

15h 55m1 stop

$170Frontier

Find Deal

Thu, Dec 18 - Mon, Jan 5

10:39 am - 12:12 pmSLC-STL

24h 33m2 stops

7:43 pm - 11:37 amSTL-SLC

16h 54m1 stop

$182Frontier

Find Deal

Wed, Dec 10 - Sat, Dec 13

8:43 pm - 2:27 pmSLC-STL

16h 44m1 stop

7:43 pm - 12:07 amSTL-SLC

5h 24m1 stop

$222Multiple Airlines

Find Deal

Mon, Dec 8 - Wed, Dec 10

10:05 am - 10:14 amSLC-STL

23h 09m1 stop

7:00 am - 2:43 pmSTL-SLC

8h 43m1 stop

$247Multiple Airlines

Find Deal

Thu, Dec 4 - Sun, Dec 7

Frontier flights from Utah to St. Louis

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

Frontier

Nov 18

SLC1:10 pmSalt Lake City

18h 57m

1 stop

STL9:07 amLambert-St Louis

Nov 20

STL9:54 pmLambert-St Louis

19h 51m

1 stop

SLC4:45 pmSalt Lake City

$110

Find similar

Frontier

Dec 4

SLC10:05 amSalt Lake City

23h 09m

1 stop

STL10:14 amLambert-St Louis

Dec 8

STL7:43 pmLambert-St Louis

16h 54m

1 stop

SLC11:37 amSalt Lake City

$119

Find similar

Frontier

Jan 22

SLC2:38 pmSalt Lake City

25h 11m

1 stop

STL4:49 pmLambert-St Louis

Jan 28

STL7:43 pmLambert-St Louis

18h 48m

1 stop

SLC1:31 pmSalt Lake City

$121

Find similar

Delta flights from Utah to St. Louis

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

Delta

Nov 18

SLC3:10 pmSalt Lake City

2h 47m

STL6:57 pmLambert-St Louis

Nov 22

STL5:00 pmLambert-St Louis

3h 17m

SLC7:17 pmSalt Lake City

$639

Find similar

Delta

Nov 18

SLC5:25 pmSalt Lake City

4h 58m

1 stop

STL11:23 pmLambert-St Louis

Nov 22

STL5:00 pmLambert-St Louis

3h 17m

SLC7:17 pmSalt Lake City

$649

Find similar

Delta

Nov 12

SLC8:55 pmSalt Lake City

2h 51m

STL12:46 amLambert-St Louis

Nov 17

STL2:21 pmLambert-St Louis

3h 19m

SLC4:40 pmSalt Lake City

$759

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 11/18

1:10 pm-9:07 am

1 stop18h 57m

Lambert-St Louis

Thu 11/20

9:54 pm-4:45 pm

1 stop19h 51m

$110

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 12/4

10:05 am-10:14 am

1 stop23h 09m

Lambert-St Louis

Mon 12/8

7:43 pm-11:37 am

1 stop16h 54m

$119

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 1/22

2:38 pm-4:49 pm

1 stop25h 11m

Lambert-St Louis

Wed 1/28

7:43 pm-1:31 pm

1 stop18h 48m

$121

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 11/20

10:12 pm-10:02 am

1 stop10h 50m

Lambert-St Louis

Mon 11/24

7:43 pm-12:06 am

1 stop5h 23m

$127

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 11/20

10:12 pm-10:02 am

1 stop10h 50m

Lambert-St Louis

Sat 11/22

7:43 pm-12:06 am

1 stop5h 23m

$140

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 1/22

6:41 pm-10:02 am

1 stop14h 21m

Lambert-St Louis

Wed 1/28

7:43 pm-3:39 pm

2 stops20h 56m

$162

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 12/18

7:20 am-10:02 am

1 stop25h 42m

Lambert-St Louis

Mon 1/5

10:10 pm-1:05 pm

1 stop15h 55m

$170

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 12/10

10:39 am-12:12 pm

2 stops24h 33m

Lambert-St Louis

Sat 12/13

7:43 pm-11:37 am

1 stop16h 54m

$182

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 12/8

8:43 pm-2:27 pm

1 stop16h 44m

Lambert-St Louis

Wed 12/10

7:43 pm-12:07 am

1 stop5h 24m

$222

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 12/4

10:05 am-10:14 am

1 stop23h 09m

Lambert-St Louis

Sun 12/7

7:00 am-2:43 pm

1 stop8h 43m

$247

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 $375. 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 $429. 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 $594. 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 afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $548 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 $412 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 $340 on momondo.

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

There are 2 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	$378
Fastest flight time	2h 40m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Utah in the past 72 hours is $378. 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 40m

Direct flights go from Utah to St. Louis every day.

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 November 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 (56.52% of total bookings). The next most popular plane models are Airbus A220-300 (16.30%), Airbus A319 (10.87%), and Airbus A320-100/200 (4.35%).

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 $127	Free Cancellation	Rating 5.8 3,116 reviews	Search Frontier flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.2 11,042 reviews	Search American Airlines flights
Southwest	PriceFrom $296	Free Cancellation	Rating 8.0 4,240 reviews	Search Southwest flights
United Airlines	PriceFrom $306	Free Cancellation	Rating 7.4 9,002 reviews	Search United Airlines flights
Delta	PriceFrom $359	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Wentzville

Fenton

Collinsville

St. Peters

Alton

Farmington

Festus

Glencoe

Edwardsville

Clayton

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.