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Cheap flights from St. Louis to Salt Lake City from $55

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 12/10. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:16 pm - 1:25 pmSTL-SLC
25h 09m1 stop
Frontier Logo
6:23 pm - 10:14 amSLC-STL
14h 51m1 stop
$121Frontier
Find Deal
Thu, Dec 11 - Tue, Dec 16
Frontier Logo
7:43 pm - 12:38 pmSTL-SLC
17h 55m1 stop
Frontier Logo
7:05 am - 10:02 amSLC-STL
25h 57m1 stop
$128Frontier
Find Deal
Mon, Jan 12 - Fri, Jan 30
Frontier Logo
7:57 pm - 12:06 amSTL-SLC
5h 09m1 stop
Frontier Logo
10:12 pm - 10:02 amSLC-STL
10h 50m1 stop
$138Frontier
Find Deal
Thu, Nov 27 - Sun, Nov 30
Frontier Logo
7:43 pm - 8:12 amSTL-SLC
13h 29m1 stop
Frontier Logo
9:07 pm - 10:02 amSLC-STL
11h 55m1 stop
$141Frontier
Find Deal
Wed, Dec 17 - Tue, Dec 30
Frontier Logo
7:43 pm - 12:06 amSTL-SLC
5h 23m1 stop
Frontier Logo
2:22 pm - 9:09 pmSLC-STL
5h 47m1 stop
$144Frontier
Find Deal
Fri, Nov 21 - Tue, Nov 25
Frontier Logo
9:47 pm - 1:43 pmSTL-SLC
16h 56m1 stop
Frontier Logo
4:31 pm - 10:02 amSLC-STL
16h 31m1 stop
$145Frontier
Find Deal
Sun, Jan 11 - Fri, Jan 30
Frontier Logo
7:43 pm - 12:38 pmSTL-SLC
17h 55m1 stop
Frontier Logo
9:44 pm - 10:02 amSLC-STL
11h 18m2 stops
$160Frontier
Find Deal
Mon, Jan 12 - Fri, Jan 23
Frontier Logo
12:04 pm - 9:44 amSTL-SLC
46h 40m2 stops
Frontier Logo
6:23 pm - 10:14 amSLC-STL
14h 51m1 stop
$162Frontier
Find Deal
Thu, Dec 11 - Tue, Dec 16
Multiple Airlines Logo
7:43 pm - 12:07 amSTL-SLC
5h 24m1 stop
Multiple Airlines Logo
3:37 pm - 2:27 pmSLC-STL
21h 50m1 stop
$227Multiple Airlines
Find Deal
Sat, Dec 6 - Mon, Dec 8
Multiple Airlines Logo
7:43 pm - 12:07 amSTL-SLC
5h 24m1 stop
Multiple Airlines Logo
12:54 pm - 2:27 pmSLC-STL
24h 33m1 stop
$263Multiple Airlines
Find Deal
Fri, Dec 5 - Wed, Dec 10

Frontier flights from St. Louis to Salt Lake City

Our best Frontier deals on St. Louis to Salt Lake City flight tickets
Frontier
Dec 11
STL1:16 pmLambert-St Louis
25h 09m
1 stop
SLC1:25 pmSalt Lake City
Dec 16
SLC6:23 pmSalt Lake City
14h 51m
1 stop
STL10:14 amLambert-St Louis
$121
Find similar
Frontier
Jan 12
STL7:43 pmLambert-St Louis
17h 55m
1 stop
SLC12:38 pmSalt Lake City
Jan 30
SLC7:05 amSalt Lake City
25h 57m
1 stop
STL10:02 amLambert-St Louis
$128
Find similar
Frontier
Nov 27
STL7:57 pmLambert-St Louis
5h 09m
1 stop
SLC12:06 amSalt Lake City
Nov 30
SLC10:12 pmSalt Lake City
10h 50m
1 stop
STL10:02 amLambert-St Louis
$138
Find similar

Delta flights from St. Louis to Salt Lake City

Our best Delta deals on St. Louis to Salt Lake City flight tickets
Delta
Nov 20
STL6:34 amLambert-St Louis
3h 21m
SLC8:55 amSalt Lake City
Nov 24
SLC3:10 pmSalt Lake City
2h 47m
STL6:57 pmLambert-St Louis
$639
Find similar
Delta
Nov 20
STL9:04 amLambert-St Louis
8h 36m
1 stop
SLC4:40 pmSalt Lake City
Nov 24
SLC3:10 pmSalt Lake City
2h 47m
STL6:57 pmLambert-St Louis
$649
Find similar
Delta
Nov 13
STL7:47 pmLambert-St Louis
3h 16m
SLC10:03 pmSalt Lake City
Nov 17
SLC3:10 pmSalt Lake City
2h 47m
STL6:57 pmLambert-St Louis
$739
Find similar

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 November 6, 2025.
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

Thu 12/11

1:16 pm-1:25 pm

1 stop25h 09m

Salt Lake City

Tue 12/16

6:23 pm-10:14 am

1 stop14h 51m

$121

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 1/12

7:43 pm-12:38 pm

1 stop17h 55m

Salt Lake City

Fri 1/30

7:05 am-10:02 am

1 stop25h 57m

$128

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 11/27

7:57 pm-12:06 am

1 stop5h 09m

Salt Lake City

Sun 11/30

10:12 pm-10:02 am

1 stop10h 50m

$138

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 12/17

7:43 pm-8:12 am

1 stop13h 29m

Salt Lake City

Tue 12/30

9:07 pm-10:02 am

1 stop11h 55m

$141

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 11/21

7:43 pm-12:06 am

1 stop5h 23m

Salt Lake City

Tue 11/25

2:22 pm-9:09 pm

1 stop5h 47m

$144

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sun 1/11

9:47 pm-1:43 pm

1 stop16h 56m

Salt Lake City

Fri 1/30

4:31 pm-10:02 am

1 stop16h 31m

$145

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 1/12

7:43 pm-12:38 pm

1 stop17h 55m

Salt Lake City

Fri 1/23

9:44 pm-10:02 am

2 stops11h 18m

$160

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 12/11

12:04 pm-9:44 am

2 stops46h 40m

Salt Lake City

Tue 12/16

6:23 pm-10:14 am

1 stop14h 51m

$162

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 12/6

7:43 pm-12:07 am

1 stop5h 24m

Salt Lake City

Mon 12/8

3:37 pm-2:27 pm

1 stop21h 50m

$227

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 12/5

7:43 pm-12:07 am

1 stop5h 24m

Salt Lake City

Wed 12/10

12:54 pm-2:27 pm

1 stop24h 33m

$263

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 Tuesday. momondo users have found tickets for Tuesday departures for as low as $373. 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 $477.

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 $357. In the morning is when there is more demand to fly to Salt Lake City, so prices are often more expensive at around $456 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 $427 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 $386 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 November 2025, prices for St. Louis to Salt Lake City flights are approximately 5% cheaper 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

$179

Fastest flight time

3h 16m

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 $179. The best round-trip flight deal from St. Louis to Salt Lake City found on momondo in the last 72 hours is $358.
The fastest flight from St. Louis to Salt Lake City takes 3h 16m
Direct flights go from St. Louis to Salt Lake City every day.
There is 1 airport near Salt Lake City: 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 5h 09m.

  • 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 $114Free CancellationRating
5.8
3,115 reviews
Search Frontier flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $290Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
SouthwestPriceFrom $306Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
DeltaPriceFrom $359Free CancellationRating
7.9
8,001 reviews
Search Delta flights

  • Delta Flights From St. Louis to Salt Lake City

    Across 10 Delta flights from St. Louis to Salt Lake City this week, the average price was $448, with the best Delta deals starting from $359 round-trip. 8,001 users have rated Delta on momondo, with an average score of 7.9/10.

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
West Valley City
Sandy
Heber City
Midvale
Lehi
Midway
West Jordan
South Jordan
Layton
Draper
Clearfield
Farmington
Evanston
Bountiful
Alta
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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