$63+ Cheap flights from St. Louis to Salt Lake City (STL - SLC)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SLC
Jan 17 — Jan 241
1 adult, Economy
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Find cheap flights from St. Louis to Salt Lake City with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Lambert-St Louis to Salt Lake City are usually found in April or May, booked 78 days in advance, depart on a Tuesday or Wednesday and return on a Friday
Cheap flight deals from St. Louis to Salt Lake City
Cheapest flights from St. Louis to Salt Lake CityExplore the most affordable flight options available from St. Louis to Salt Lake City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
Explore the most affordable flight options available from St. Louis to Salt Lake City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
This Priceline deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:43 pmSTL - SLC
1 stop5h 24mFrontier
Mon 12/2212:51 pmSLC - STL
1 stop6h 16mFrontier
Deal found 12/16![Frontier logo]()
$284
This Frontier deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:52 pmSTL - SLC
1 stop11h 49mFrontier
Mon 12/2912:51 pmSLC - STL
1 stop6h 16mFrontier
Deal found 12/16![Frontier logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:27 pmSTL - SLC
2 stops16h 45mFrontier
Sat 12/279:15 pmSLC - STL
1 stop23h 10mFrontier
Deal found 12/16![Frontier logo]()
$475
This Frontier deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:43 pmSTL - SLC
1 stop5h 24mFrontier
Fri 1/212:56 pmSLC - STL
1 stop5h 51mFrontier
Deal found 12/16![Frontier logo]()
$492
This Super.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:19 pmSTL - SLC
1 stop29h 14mFrontier
Tue 12/309:07 pmSLC - STL
1 stop11h 55mFrontier
Deal found 12/16![Frontier logo]()
$588
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:20 amSTL - SLC
Nonstop3h 26mDelta
Mon 12/299:26 amSLC - STL
Nonstop2h 57mDelta
Deal found 12/16![Delta logo]()
$669
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:20 amSTL - SLC
Nonstop3h 26mDelta
Tue 12/309:26 amSLC - STL
Nonstop2h 57mDelta
Deal found 12/16![Delta logo]()
$719
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/223:30 pmSTL - SLC
1 stop6h 17mAmerican Airlines
Mon 12/2910:58 amSLC - STL
2 stops7h 24mAmerican Airlines
Deal found 12/16![American Airlines logo]()
$724
Find flight deals from St. Louis to Salt Lake City
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Salt Lake City (SLC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $139 (Kiwi.com) |
One-way from | $63 (Trip.com) |
Popular in | December |
Cheapest in | April |
Average price | $499 |
Good round-trip deal | $359 or less |
Good one-way deal | $219 or less |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from St. Louis to Salt Lake City that are best for you.
Fly from
St. Louis
Fly to
Salt Lake City
Route
Depart
Return
Price
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Sun 1/18
10:09 pm-9:00 am
1 stop11h 51m
Salt Lake City
Thu 1/22
12:15 pm-9:06 pm
1 stop7h 51m
$155
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Fri 3/6
12:14 pm-6:00 pm
1 stop6h 46m
Salt Lake City
Thu 3/12
10:07 am-10:02 pm
1 stop10h 55m
$300
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Sun 2/22
7:00 am-2:26 pm
1 stop8h 26m
Salt Lake City
Tue 2/24
9:00 am-1:51 pm
1 stop27h 51m
$342
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Fri 3/6
2:47 pm-10:20 am
2 stops20h 33m
Salt Lake City
Thu 3/12
9:00 am-11:59 pm
1 stop13h 59m
$343
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Sun 2/15
3:19 pm-11:58 pm
1 stop9h 39m
Salt Lake City
Wed 2/18
9:00 am-1:51 pm
1 stop27h 51m
$348
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Thu 2/5
2:50 pm-11:43 pm
1 stop9h 53m
Salt Lake City
Mon 2/9
7:00 am-1:54 pm
1 stop29h 54m
$357
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Thu 1/29
2:50 pm-11:43 pm
1 stop9h 53m
Salt Lake City
Mon 2/2
9:00 am-1:54 pm
1 stop27h 54m
$363
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Fri 1/30
2:50 pm-5:43 pm
2 stops27h 53m
Salt Lake City
Mon 2/2
8:20 am-1:54 pm
2 stops28h 34m
$363
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Tue 2/3
10:15 am-5:30 pm
2 stops8h 15m
Salt Lake City
Wed 2/4
9:30 am-8:35 pm
2 stops10h 05m
$383
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Sat 2/14
2:51 pm-12:14 am
1 stop10h 23m
$68
Showing 1-10 of 18 results
Compare providers for flights from St. Louis to Salt Lake City
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Salt Lake City in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-Salt Lake City flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on St. Louis-Salt Lake City flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from St. Louis-Salt Lake City flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Salt Lake City flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Salt Lake City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Salt Lake City
Have a flexible travel schedule? Discover the best time to fly to Salt Lake City from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Salt Lake City
How far ahead should I book a flight from St. Louis to Salt Lake City?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Salt Lake City. Price data was last updated on December 12, 2025.
The price you pay for your flight from St. Louis to Salt Lake City may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from St. Louis to Salt Lake City?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Salt Lake City (average of $131). Flying from St. Louis to Salt Lake City in June is currently the most expensive (average of $263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from STL to SLC?
Find hourly flight availability from St. Louis to Salt Lake City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.
When flying from St. Louis to Salt Lake City, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 21% versus a flight in the morning.
What is the cheapest day to fly from St. Louis to Salt Lake City?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Salt Lake City. Price data was last updated on December 13, 2025.
Travelers seeking maximum savings on their St. Louis to Salt Lake City flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Salt Lake City
Get insights into the airlines that provide service to Salt Lake City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Salt Lake City. Reviews last updated December 18, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from St. Louis to Salt Lake City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Salt Lake City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Salt Lake City
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from St. Louis to Salt Lake City
Discover the top 5 airlines that operate flights from St. Louis to Salt Lake City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$115 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$276 | Average$402 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$554 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$306 | Average$418 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$359 | Average$444 | FlexibilityNo cancel fee | On-timeN/A |