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Cheap flights from Utah to St. Louis from $105

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Utah to St. Louis departing on 9/6. 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 Utah to St. Louis

Cheap round-trip flights

Frontier Logo
8:45 am - 9:06 amSLC-STL
23h 21m1 stop
Frontier Logo
7:55 pm - 10:26 pmSTL-SLC
27h 31m1 stop
$205Frontier
Find Deal
Tue, Sep 16 - Tue, Sep 23
Frontier Logo
9:59 pm - 9:11 amSLC-STL
10h 12m1 stop
Frontier Logo
7:54 pm - 12:19 amSTL-SLC
5h 25m1 stop
$208Frontier
Find Deal
Sat, Aug 23 - Mon, Sep 1
Southwest Logo
6:45 am - 2:30 pmSLC-STL
6h 45m1 stop
Southwest Logo
10:15 am - 4:55 pmSTL-SLC
7h 40m2 stops
$277Southwest
Find Deal
Tue, Sep 16 - Tue, Sep 23
Southwest Logo
6:30 am - 5:40 pmSLC-STL
10h 10m2 stops
Southwest Logo
10:30 am - 5:30 pmSTL-SLC
8h 00m2 stops
$282Southwest
Find Deal
Tue, Sep 16 - Tue, Sep 23
Alaska Airlines Logo
7:00 am - 5:34 pmSLC-STL
9h 34m1 stop
Alaska Airlines Logo
3:35 pm - 10:01 amSTL-SLC
19h 26m2 stops
$351Alaska Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
Logo
9:29 am - 11:21 amSLC-STL
24h 52m2 stops
Logo
10:35 am - 5:52 pmSTL-SLC
32h 17m3 stops
$353
Find Deal
Thu, Sep 11 - Sun, Sep 14
Alaska Airlines Logo
7:48 pm - 11:59 pmSLC-STL
27h 11m2 stops
Alaska Airlines Logo
6:30 pm - 10:19 amSTL-SLC
16h 49m1 stop
$365Alaska Airlines
Find Deal
Wed, Sep 3 - Sun, Sep 7
Spirit Airlines Logo
3:02 pm - 1:32 pmSLC-STL
21h 30m2 stops
Spirit Airlines Logo
10:35 am - 5:52 pmSTL-SLC
32h 17m3 stops
$367Spirit Airlines
Find Deal
Sun, Aug 31 - Sun, Sep 7
Spirit Airlines Logo
3:02 pm - 1:32 pmSLC-STL
21h 30m2 stops
Spirit Airlines Logo
2:30 pm - 1:57 pmSTL-SLC
24h 27m3 stops
$377Spirit Airlines
Find Deal
Wed, Aug 20 - Mon, Aug 25
Logo
9:09 pm - 9:40 amSLC-STL
35h 31m3 stops
Logo
9:50 am - 8:34 amSTL-SLC
23h 44m3 stops
$379
Find Deal
Fri, Sep 19 - Fri, Sep 26

Spirit Airlines flights from Utah to St. Louis

Our best Spirit Airlines deals on Utah to St. Louis flight tickets
Spirit Airlines
Aug 31
SLC3:02 pmSalt Lake City
21h 30m
2 stops
STL1:32 pmLambert-St Louis
Sep 7
STL10:35 amLambert-St Louis
32h 17m
3 stops
SLC5:52 pmSalt Lake City
$367
Find similar
Spirit Airlines
Aug 20
SLC3:02 pmSalt Lake City
21h 30m
2 stops
STL1:32 pmLambert-St Louis
Aug 25
STL2:30 pmLambert-St Louis
24h 27m
3 stops
SLC1:57 pmSalt Lake City
$377
Find similar
Spirit Airlines
Aug 20
SLC3:02 pmSalt Lake City
21h 30m
3 stops
STL1:32 pmLambert-St Louis
Aug 25
STL2:30 pmLambert-St Louis
24h 27m
3 stops
SLC1:57 pmSalt Lake City
$384
Find similar

Frontier flights from Utah to St. Louis

Our best Frontier deals on Utah to St. Louis flight tickets
Frontier
Aug 12
SLC8:55 pmSalt Lake City
11h 16m
1 stop
STL9:11 amLambert-St Louis
Aug 13
STL7:29 pmLambert-St Louis
14h 03m
1 stop
SLC8:32 amSalt Lake City
$205
Find similar
Frontier
Aug 23
SLC9:59 pmSalt Lake City
10h 12m
1 stop
STL9:11 amLambert-St Louis
Sep 1
STL7:54 pmLambert-St Louis
5h 25m
1 stop
SLC12:19 amSalt Lake City
$208
Find similar
Frontier
Sep 26
SLC1:25 pmSalt Lake City
6h 15m
1 stop
STL8:40 pmLambert-St Louis
Sep 28
STL10:39 amLambert-St Louis
6h 06m
1 stop
SLC3:45 pmSalt Lake City
$210
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Utah to St. Louis 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 August 5, 2025.
Use the filters below to find and compare flights from Utah to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/16

8:45 am-9:06 am

1 stop23h 21m

Lambert-St Louis

Tue 9/23

7:55 pm-10:26 pm

1 stop27h 31m

$205

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sat 8/23

9:59 pm-9:11 am

1 stop10h 12m

Lambert-St Louis

Mon 9/1

7:54 pm-12:19 am

1 stop5h 25m

$208

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/16

6:45 am-2:30 pm

1 stop6h 45m

Lambert-St Louis

Tue 9/23

10:15 am-4:55 pm

2 stops7h 40m

$277

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/16

6:30 am-5:40 pm

2 stops10h 10m

Lambert-St Louis

Tue 9/23

10:30 am-5:30 pm

2 stops8h 00m

$282

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/16

7:00 am-5:34 pm

1 stop9h 34m

Lambert-St Louis

Tue 9/23

3:35 pm-10:01 am

2 stops19h 26m

$351

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 9/11

9:29 am-11:21 am

2 stops24h 52m

Lambert-St Louis

Sun 9/14

10:35 am-5:52 pm

3 stops32h 17m

$353

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 9/3

7:48 pm-11:59 pm

2 stops27h 11m

Lambert-St Louis

Sun 9/7

6:30 pm-10:19 am

1 stop16h 49m

$365

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sun 8/31

3:02 pm-1:32 pm

2 stops21h 30m

Lambert-St Louis

Sun 9/7

10:35 am-5:52 pm

3 stops32h 17m

$367

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 8/20

3:02 pm-1:32 pm

2 stops21h 30m

Lambert-St Louis

Mon 8/25

2:30 pm-1:57 pm

3 stops24h 27m

$377

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 9/19

9:09 pm-9:40 am

3 stops35h 31m

Lambert-St Louis

Fri 9/26

9:50 am-8:34 am

3 stops23h 44m

$379

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

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

In general, August 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 $337. The month of February is another great option to travel to St. Louis, with average flight prices from Utah averaging around $359.

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 Wednesday 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 $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 $419 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 $410 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 $347 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

$105

Fastest flight time

2h 48m

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 $105. The best round-trip flight deal from Utah to St. Louis found on momondo in the last 72 hours is $205.
The fastest flight from Utah to St. Louis takes 2h 48m
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?

  • 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?

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
FrontierPriceFrom $118Free CancellationRating
5.8
3,232 reviews
Search Frontier flights
DeltaPriceFrom $258Free CancellationRating
8.0
7,985 reviews
Search Delta flights
United AirlinesPriceFrom $298Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
American AirlinesPriceFrom $316Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $332Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
Fenton
O'Fallon
Collinsville
Alton
Wentzville
St. Peters
Farmington
Festus
Glencoe
Eureka
Edwardsville
Clayton
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.

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