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Cheap flights from St. Louis to Salt Lake City from $59

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 Salt Lake City departing on 3/4. 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 Salt Lake City

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:51 pm - 8:44 am
STL
-
SLC
18h 53m
1 stop
Frontier Logo
9:14 pm - 9:49 am
SLC
-
STL
11h 35m
1 stop
$125Frontier
Sat, Feb 28 - Tue, Mar 10
Frontier Logo
8:47 pm - 12:01 pm
STL
-
SLC
16h 14m
1 stop
Frontier Logo
8:00 am - 3:53 pm
SLC
-
STL
6h 53m
1 stop
$131Frontier
Mon, Feb 23 - Wed, Feb 25
Frontier Logo
10:11 pm - 1:33 pm
STL
-
SLC
16h 22m
1 stop
Frontier Logo
8:01 pm - 3:53 pm
SLC
-
STL
18h 52m
1 stop
$132Frontier
Fri, Feb 27 - Tue, Mar 3
Frontier Logo
1:59 pm - 11:45 am
STL
-
SLC
22h 46m
1 stop
Frontier Logo
9:14 pm - 9:49 am
SLC
-
STL
11h 35m
1 stop
$133Frontier
Fri, Feb 27 - Tue, Mar 10
Frontier Logo
10:11 pm - 8:30 am
STL
-
SLC
11h 19m
1 stop
Frontier Logo
4:13 pm - 5:46 pm
SLC
-
STL
24h 33m
1 stop
$136Frontier
Thu, Feb 26 - Fri, Feb 27
Frontier Logo
4:51 pm - 8:44 am
STL
-
SLC
16h 53m
1 stop
Frontier Logo
7:20 am - 1:56 pm
SLC
-
STL
5h 36m
1 stop
$138Frontier
Wed, Feb 25 - Sat, Feb 28
Frontier Logo
2:51 pm - 8:44 am
STL
-
SLC
18h 53m
1 stop
Frontier Logo
9:14 pm - 9:49 am
SLC
-
STL
11h 35m
1 stop
$139Frontier
Sat, Feb 28 - Sun, Mar 8
Frontier Logo
8:47 pm - 12:01 pm
STL
-
SLC
16h 14m
1 stop
Frontier Logo
9:14 pm - 9:49 am
SLC
-
STL
11h 35m
1 stop
$140Frontier
Mon, Mar 2 - Tue, Mar 10
Frontier Logo
1:59 pm - 11:45 am
STL
-
SLC
22h 46m
1 stop
Frontier Logo
8:01 pm - 3:53 pm
SLC
-
STL
18h 52m
1 stop
$141Frontier
Fri, Feb 27 - Tue, Mar 3
Frontier Logo
8:12 pm - 6:55 am
STL
-
SLC
11h 43m
1 stop
Frontier Logo
9:14 pm - 9:49 am
SLC
-
STL
11h 35m
1 stop
$146Frontier
Sat, Mar 7 - Fri, Mar 13

Frontier flights from St. Louis to Salt Lake City

Our best Frontier deals on St. Louis to Salt Lake City flight tickets
Frontier
Feb 28
STL2:51 pmLambert-St Louis
18h 53m
1 stop
SLC8:44 amSalt Lake City
Mar 10
SLC9:14 pmSalt Lake City
11h 35m
1 stop
STL9:49 amLambert-St Louis
$125
Frontier
Feb 23
STL8:47 pmLambert-St Louis
16h 14m
1 stop
SLC12:01 pmSalt Lake City
Feb 25
SLC8:00 amSalt Lake City
6h 53m
1 stop
STL3:53 pmLambert-St Louis
$131
Frontier
Feb 27
STL10:11 pmLambert-St Louis
16h 22m
1 stop
SLC1:33 pmSalt Lake City
Mar 3
SLC8:01 pmSalt Lake City
18h 52m
1 stop
STL3:53 pmLambert-St Louis
$132

Southwest flights from St. Louis to Salt Lake City

Our best Southwest deals on St. Louis to Salt Lake City flight tickets
Southwest
Feb 11
STL6:00 amLambert-St Louis
5h 50m
1 stop
SLC10:50 amSalt Lake City
Feb 14
SLC11:45 amSalt Lake City
8h 25m
2 stops
STL9:10 pmLambert-St Louis
$550
Southwest
Feb 11
STL10:15 amLambert-St Louis
8h 15m
2 stops
SLC5:30 pmSalt Lake City
Feb 14
SLC11:45 amSalt Lake City
8h 25m
2 stops
STL9:10 pmLambert-St Louis
$559
Southwest
Feb 11
STL10:15 amLambert-St Louis
8h 15m
2 stops
SLC5:30 pmSalt Lake City
Feb 13
SLC11:30 amSalt Lake City
6h 55m
2 stops
STL7:25 pmLambert-St Louis
$586

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Salt Lake City 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 January 28, 2026.
Use the filters below to find and compare flights from St. Louis to Salt Lake City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 2/28

2:51 pm-8:44 am

1 stop18h 53m

Salt Lake City

Tue 3/10

9:14 pm-9:49 am

1 stop11h 35m

$125

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 2/23

8:47 pm-12:01 pm

1 stop16h 14m

Salt Lake City

Wed 2/25

8:00 am-3:53 pm

1 stop6h 53m

$131

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 2/27

10:11 pm-1:33 pm

1 stop16h 22m

Salt Lake City

Tue 3/3

8:01 pm-3:53 pm

1 stop18h 52m

$132

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 2/27

1:59 pm-11:45 am

1 stop22h 46m

Salt Lake City

Tue 3/10

9:14 pm-9:49 am

1 stop11h 35m

$133

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 2/26

10:11 pm-8:30 am

1 stop11h 19m

Salt Lake City

Fri 2/27

4:13 pm-5:46 pm

1 stop24h 33m

$136

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 2/25

4:51 pm-8:44 am

1 stop16h 53m

Salt Lake City

Sat 2/28

7:20 am-1:56 pm

1 stop5h 36m

$138

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 2/28

2:51 pm-8:44 am

1 stop18h 53m

Salt Lake City

Sun 3/8

9:14 pm-9:49 am

1 stop11h 35m

$139

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 3/2

8:47 pm-12:01 pm

1 stop16h 14m

Salt Lake City

Tue 3/10

9:14 pm-9:49 am

1 stop11h 35m

$140

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 2/27

1:59 pm-11:45 am

1 stop22h 46m

Salt Lake City

Tue 3/3

8:01 pm-3:53 pm

1 stop18h 52m

$141

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 3/7

8:12 pm-6:55 am

1 stop11h 43m

Salt Lake City

Fri 3/13

9:14 pm-9:49 am

1 stop11h 35m

$146

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 Salt Lake City from

How to get the cheapest flight ticket from St. Louis to Salt Lake City

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 Salt Lake City?

In general, April is the cheapest month to fly from St. Louis to Salt Lake City. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $359. If you are unable to visit Salt Lake City during the month of April, then departing from St. Louis during the month May is also very affordable. Most momondo users find prices during this month for around $399.

What is the cheapest day to depart on your flight to Salt Lake City?

On average, the least expensive day to fly to Salt Lake City from St. Louis is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $389. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Salt Lake City on Sunday is $473.

What is the cheapest time of day to depart on your flight to Salt Lake City?

Our most recent data shows that the best time of day to fly to Salt Lake City is in the evening. Flights from St. Louis to Salt Lake City during this time can be as low as $358. In the morning is when there is more demand to fly to Salt Lake City, so prices are often more expensive at around $460 per ticket.

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

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

How far in advance should I book a flight to Salt Lake City?

You are more likely to see cheaper flights to Salt Lake City from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Salt Lake City for around $440 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Salt Lake City from St. Louis for as low as $390 on momondo.

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

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

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

As of January 2026, prices for St. Louis to Salt Lake City flights are approximately 5% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$183

Fastest flight time

3h 13m

Direct flights

Every day

Airports in Salt Lake City

1 airport
The best one-way flight to Salt Lake City from St. Louis in the past 72 hours is $183. The best round-trip flight deal from St. Louis to Salt Lake City found on momondo in the last 72 hours is $382.
The fastest flight from St. Louis to Salt Lake City takes 3h 13m
Direct flights go from St. Louis to Salt Lake City every day.
There is 1 airport in Salt Lake City. From St. Louis there are direct flights to Salt Lake City (SLC).
Search flight deals

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

    The distance between Lambert-St Louis and Salt Lake City is about 1158.3 mi. A reasonable flight in good conditions will take 3h 13m.

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

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

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

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

  • What documentation or ID do you need to fly to Salt Lake City Airport?

    The travel and health documents you'll need for your trip to Salt Lake City 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 Salt Lake City 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 St. Louis to Salt Lake City?

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

Best airlines flying from St. Louis to Salt Lake City

Compare and see reviews for airlines that fly from St. Louis to Salt Lake City with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $107Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
United AirlinesPriceFrom $215Free CancellationRating
7.4
9,212 reviews
Search United Airlines flights
SouthwestPriceFrom $260Free CancellationRating
8.0
4,267 reviews
Search Southwest flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights
DeltaPriceFrom $359Free CancellationRating
7.9
8,124 reviews
Search Delta flights

  • Southwest Flights From St. Louis to Salt Lake City

    Across 5 Southwest flights from St. Louis to Salt Lake City this week, the average price was $414, with the best Southwest deals starting from $260 round-trip. 4,267 users have rated Southwest on momondo, with an average score of 8.0/10.

  • Delta Flights From St. Louis to Salt Lake City

    Delta (7.9/10 from 8,124 reviews) operates around 13 flights from St. Louis to Salt Lake City in any given week. The average Delta airfare for this route is around $451, with deals from around $359 rare but found on momondo. Referenced prices are for round-trip St. Louis to Salt Lake City flight searches in the last 72 hours.

Traveling to a place near Salt Lake City?

Book flights to Salt Lake City if you plan to visit one of these locations
Park City
Logan
Sandy
West Valley City
Midvale
Heber City
Lehi
Midway
South Jordan
West Jordan
Layton
Draper
Farmington
Clearfield
Evanston
Alta
Bountiful
Brighton

Why use momondo?

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

Finding the right flight to Salt Lake City from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Salt Lake City quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for St. Louis to Salt Lake City flights to just show those with flexible booking policies.

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

Once you have performed a search for St. Louis to Salt Lake City flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Salt Lake City 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 Salt Lake City 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.
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