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Cheap flights from Salt Lake City to St. Louis from $76

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Salt Lake City to St. Louis departing on 9/22. 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 Salt Lake City to St. Louis (SLC-STL)

Cheap round-trip flights

Frontier Logo
9:45 pm - 9:06 amSLC-STL
10h 21m1 stop
Frontier Logo
10:39 am - 3:45 pmSTL-SLC
6h 06m1 stop
$155Frontier
Find Deal
Thu, Sep 11 - Sun, Sep 14
Frontier Logo
9:45 pm - 9:06 amSLC-STL
10h 21m1 stop
Frontier Logo
2:38 pm - 7:28 pmSTL-SLC
5h 50m1 stop
$160Frontier
Find Deal
Sun, Sep 7 - Mon, Sep 8
Frontier Logo
10:05 pm - 9:07 amSLC-STL
10h 02m1 stop
Frontier Logo
7:52 pm - 11:59 pmSTL-SLC
5h 07m1 stop
$163Frontier
Find Deal
Fri, Oct 10 - Mon, Oct 13
Frontier Logo
8:00 am - 9:07 amSLC-STL
24h 07m1 stop
Frontier Logo
7:45 pm - 12:01 amSTL-SLC
5h 16m1 stop
$165Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
Frontier Logo
8:00 am - 9:07 amSLC-STL
24h 07m1 stop
Frontier Logo
9:07 pm - 10:48 amSTL-SLC
14h 41m1 stop
$167Frontier
Find Deal
Tue, Oct 28 - Fri, Oct 31
Frontier Logo
8:44 pm - 4:03 pmSLC-STL
18h 19m1 stop
Frontier Logo
10:39 am - 3:45 pmSTL-SLC
6h 06m1 stop
$169Frontier
Find Deal
Fri, Sep 26 - Sun, Sep 28
Logo
9:45 pm - 9:06 amSLC-STL
10h 21m1 stop
Logo
4:00 pm - 8:14 pmSTL-SLC
29h 14m2 stops
$256
Find Deal
Sun, Sep 14 - Thu, Sep 18
Alaska Airlines Logo
9:15 am - 5:34 pmSLC-STL
7h 19m1 stop
Alaska Airlines Logo
6:00 am - 12:44 pmSTL-SLC
7h 44m1 stop
$317Alaska Airlines
Find Deal
Tue, Sep 23 - Wed, Oct 1
Alaska Airlines Logo
3:29 pm - 11:59 pmSLC-STL
7h 30m1 stop
Alaska Airlines Logo
6:00 am - 2:35 pmSTL-SLC
9h 35m1 stop
$326Alaska Airlines
Find Deal
Thu, Sep 18 - Wed, Sep 24
Alaska Airlines Logo
3:29 pm - 11:59 pmSLC-STL
7h 30m1 stop
Alaska Airlines Logo
6:00 am - 12:44 pmSTL-SLC
7h 44m1 stop
$335Alaska Airlines
Find Deal
Thu, Sep 25 - Thu, Oct 2

Frontier flights from Salt Lake City to St. Louis

Our best Frontier deals on Salt Lake City to St. Louis flight tickets
Frontier
Sep 11
SLC9:45 pmSalt Lake City
10h 21m
1 stop
STL9:06 amLambert-St Louis
Sep 14
STL10:39 amLambert-St Louis
6h 06m
1 stop
SLC3:45 pmSalt Lake City
$155
Find similar
Frontier
Sep 7
SLC9:45 pmSalt Lake City
10h 21m
1 stop
STL9:06 amLambert-St Louis
Sep 8
STL2:38 pmLambert-St Louis
5h 50m
1 stop
SLC7:28 pmSalt Lake City
$160
Find similar
Frontier
Oct 10
SLC10:05 pmSalt Lake City
10h 02m
1 stop
STL9:07 amLambert-St Louis
Oct 13
STL7:52 pmLambert-St Louis
5h 07m
1 stop
SLC11:59 pmSalt Lake City
$163
Find similar

Delta flights from Salt Lake City to St. Louis

Our best Delta deals on Salt Lake City to St. Louis flight tickets
Delta
Aug 29
SLC2:00 pmSalt Lake City
2h 47m
STL5:47 pmLambert-St Louis
Sep 1
STL7:35 amLambert-St Louis
3h 11m
SLC9:46 amSalt Lake City
$599
Find similar
Delta
Aug 29
SLC8:50 pmSalt Lake City
2h 48m
STL12:38 amLambert-St Louis
Sep 1
STL6:00 amLambert-St Louis
5h 15m
1 stop
SLC10:15 amSalt Lake City
$609
Find similar
Delta
Aug 29
SLC9:41 amSalt Lake City
2h 49m
STL1:30 pmLambert-St Louis
Aug 31
STL7:35 amLambert-St Louis
3h 11m
SLC9:46 amSalt Lake City
$669
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Salt Lake City 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 18, 2025.
Use the filters below to find and compare flights from Salt Lake City 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

Thu 9/11

9:45 pm-9:06 am

1 stop10h 21m

Lambert-St Louis

Sun 9/14

10:39 am-3:45 pm

1 stop6h 06m

$155

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sun 9/7

9:45 pm-9:06 am

1 stop10h 21m

Lambert-St Louis

Mon 9/8

2:38 pm-7:28 pm

1 stop5h 50m

$160

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 10/10

10:05 pm-9:07 am

1 stop10h 02m

Lambert-St Louis

Mon 10/13

7:52 pm-11:59 pm

1 stop5h 07m

$163

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 11/13

8:00 am-9:07 am

1 stop24h 07m

Lambert-St Louis

Sun 11/16

7:45 pm-12:01 am

1 stop5h 16m

$165

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 10/28

8:00 am-9:07 am

1 stop24h 07m

Lambert-St Louis

Fri 10/31

9:07 pm-10:48 am

1 stop14h 41m

$167

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 9/26

8:44 pm-4:03 pm

1 stop18h 19m

Lambert-St Louis

Sun 9/28

10:39 am-3:45 pm

1 stop6h 06m

$169

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sun 9/14

9:45 pm-9:06 am

1 stop10h 21m

Lambert-St Louis

Thu 9/18

4:00 pm-8:14 pm

2 stops29h 14m

$256

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/23

9:15 am-5:34 pm

1 stop7h 19m

Lambert-St Louis

Wed 10/1

6:00 am-12:44 pm

1 stop7h 44m

$317

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 9/18

3:29 pm-11:59 pm

1 stop7h 30m

Lambert-St Louis

Wed 9/24

6:00 am-2:35 pm

1 stop9h 35m

$326

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 9/25

3:29 pm-11:59 pm

1 stop7h 30m

Lambert-St Louis

Thu 10/2

6:00 am-12:44 pm

1 stop7h 44m

$335

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 Salt Lake City 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 Salt Lake City to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $332. The month of February is another great option to travel to St. Louis, with average flight prices from Salt Lake City 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 Salt Lake City 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 $488 per ticket.

What is the cheapest Salt Lake City to Lambert-St Louis flight route?

Fly from Salt Lake City to Lambert-St Louis for the best Salt Lake City - 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 Salt Lake City 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 Salt Lake City for as low as $350 on momondo.

What cabin class options are available on Salt Lake City to Lambert-St Louis flights?

There are 4 cabin classes available to choose from on Salt Lake City 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.

How have Salt Lake City to St. Louis flight prices changed over time?

As of August 2025, prices for Salt Lake City to St. Louis flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Salt Lake City to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Salt Lake City to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Salt Lake City to St. Louis (SLC to STL) flight deals and tips

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

Best Price Found

$76

Fastest flight time

4h 50m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Salt Lake City in the past 72 hours is $76. The best round-trip flight deal from Salt Lake City to St. Louis found on momondo in the last 72 hours is $155.
The fastest flight from Salt Lake City to St. Louis takes 4h 50m
Direct flights go from Salt Lake City 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

  • How far is Salt Lake City to Lambert-St Louis by plane?

    There are 1158.3 mi between Salt Lake City and Lambert-St Louis. In terms of flight time, this usually takes a little over 6h 15m.

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

    Prices for flights from Salt Lake City Airport to Lambert-St Louis Airport refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Salt Lake City Airport to Lambert-St Louis Airport.

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

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Salt Lake City to St. Louis?

  • What is the most popular airline from Salt Lake City to St. Louis?

Best airlines flying from Salt Lake City to St. Louis

Compare and see reviews for airlines that fly from Salt Lake City to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $119Free CancellationRating
5.8
3,212 reviews
Search Frontier flights
United AirlinesPriceFrom $298Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
American AirlinesPriceFrom $316Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $318Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
DeltaPriceFrom $359Free CancellationRating
8.0
7,981 reviews
Search Delta flights

  • Delta Flights From Salt Lake City to St. Louis

    Delta operates around 20 flights from Salt Lake City to St. Louis every week. The average price of these flights found in the last 72 hours has been $461, but momondo users have found Delta deals from Salt Lake City to St. Louis from as low as $359 round-trip. Delta has been scored 8.0/10 in 7,981 reviews.

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
O'Fallon
Fenton
Wentzville
Collinsville
Alton
St. Peters
Farmington
Festus
Glencoe
Eureka
Clayton
Edwardsville
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Salt Lake City to St. Louis?

It is quick and easy to find Salt Lake City to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

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

How can momondo help me find flights from Salt Lake City to St. Louis?

momondo helps you find the best flight between Salt Lake City and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to St. Louis from Salt Lake City. 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 St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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