$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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SLC
Apr 9 — Apr 161
Round-trip
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 37 days in advance, depart on a Wednesday or Tuesday and return on a Sunday
Cheap flight deals from St. Louis to Salt Lake City
Cheapest
Best
Last-minute
One-way
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 March 10, 2026.
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 March 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:19 pm
STL
- SLC
1 stop12h 46m
Frontier
Fri 4/1710:13 pm
SLC
- STL
1 stop20h 19m
Frontier
Deal found 3/9![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/88:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Fri 4/1710:13 pm
SLC
- STL
1 stop20h 19m
Frontier
Deal found 3/9![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:19 pm
STL
- SLC
1 stop12h 46m
Frontier
Wed 4/157:49 pm
SLC
- STL
1 stop22h 32m
Frontier
Deal found 3/9![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:19 pm
STL
- SLC
1 stop12h 46m
Frontier
Sun 4/127:35 am
SLC
- STL
1 stop25h 13m
Frontier
Deal found 3/9![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/88:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Sun 4/127:35 am
SLC
- STL
1 stop25h 13m
Frontier
Deal found 3/9![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 3/9. 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 4/88:16 pm
STL
- SLC
1 stop4h 53m
Frontier
Thu 4/167:35 am
SLC
- STL
1 stop10h 46m
Frontier
Deal found 3/9![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 3/9. 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.
Thu 4/239:55 pm
STL
- SLC
1 stop11h 57m
Frontier
Thu 4/3010:48 pm
SLC
- STL
1 stop11h 34m
Frontier
Deal found 3/9![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:19 pm
STL
- SLC
1 stop12h 46m
Frontier
Thu 4/1610:48 pm
SLC
- STL
1 stop21h 22m
Frontier
Deal found 3/9![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Sun 4/510:12 pm
STL
- SLC
1 stop13h 07m
Frontier
Fri 4/1710:13 pm
SLC
- STL
1 stop20h 19m
Frontier
Deal found 3/9![Frontier logo]()
$190
This CheapOair deal was found by Cheapflights users on 3/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/54:55 pm
STL
- SLC
1 stop28h 34m
Frontier
Thu 5/77:35 am
SLC
- STL
1 stop10h 37m
Frontier
Deal found 3/9![Frontier logo]()
$191
Best flights from St. Louis to Salt Lake CityDiscover carefully curated flight deals from St. Louis to Salt Lake City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
Discover carefully curated flight deals from St. Louis to Salt Lake City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
This CheapOair deal was found by Cheapflights users on 3/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/14:54 pm
STL
- SLC
1 stop20h 58m
Frontier
Sun 4/511:49 am
SLC
- STL
1 stop20h 59m
Frontier
Deal found 3/9![Frontier logo]()
$246
This Southwest deal was found by Cheapflights users on 3/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/73:50 pm
STL
- SLC
2 stops7h 50m
Southwest
Mon 5/115:45 am
SLC
- STL
2 stops6h 25m
Southwest
Deal found 3/6![Southwest logo]()
$405
This Delta deal was found by Cheapflights users on 3/8. 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.
Thu 4/96:12 pm
STL
- SLC
Nonstop3h 13m
Delta
Sat 4/1111:15 am
SLC
- STL
1 stop4h 53m
Delta
Deal found 3/8![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 3/6. 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.
Wed 4/12:12 pm
STL
- SLC
Nonstop3h 19m
Delta
Sun 4/51:20 pm
SLC
- STL
Nonstop2h 47m
Delta
Deal found 3/6![Delta logo]()
$469
This Southwest deal was found by Cheapflights users on 3/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/228:30 am
STL
- SLC
2 stops8h 10m
Southwest
Tue 5/2611:10 am
SLC
- STL
2 stops9h 00m
Southwest
Deal found 3/8![Southwest logo]()
$477
This Delta deal was found by Cheapflights users on 3/7. 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.
Thu 3/267:15 am
STL
- SLC
Nonstop3h 22m
Delta
Mon 3/308:35 pm
SLC
- STL
Nonstop2h 46m
Delta
Deal found 3/7![Delta logo]()
$569
This Delta deal was found by Cheapflights users on 3/5. 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.
Tue 5/267:00 am
STL
- SLC
Nonstop3h 11m
Delta
Fri 5/298:38 pm
SLC
- STL
Nonstop2h 52m
Delta
Deal found 3/5![Delta logo]()
$617
This Delta deal was found by Cheapflights users on 3/5. 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 3/202:12 pm
STL
- SLC
Nonstop3h 19m
Delta
Sun 3/228:35 pm
SLC
- STL
Nonstop2h 46m
Delta
Deal found 3/5![Delta logo]()
$619
Last-minute flights from St. Louis to Salt Lake CityDiscover last-minute flight deals from St. Louis to Salt Lake City. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Salt Lake City. Data last updated March 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Sun 4/510:12 pm
STL
- SLC
1 stop13h 07m
Frontier
Fri 4/1710:13 pm
SLC
- STL
1 stop20h 19m
Frontier
Deal found 3/9![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:19 pm
STL
- SLC
1 stop12h 46m
Frontier
Fri 4/1710:13 pm
SLC
- STL
1 stop20h 19m
Frontier
Deal found 3/9![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:19 pm
STL
- SLC
1 stop12h 46m
Frontier
Wed 4/157:49 pm
SLC
- STL
1 stop22h 32m
Frontier
Deal found 3/9![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:19 pm
STL
- SLC
1 stop12h 46m
Frontier
Sun 4/127:35 am
SLC
- STL
1 stop25h 13m
Frontier
Deal found 3/9![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:19 pm
STL
- SLC
1 stop12h 46m
Frontier
Thu 4/1610:48 pm
SLC
- STL
1 stop21h 22m
Frontier
Deal found 3/9![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/88:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Fri 4/1710:13 pm
SLC
- STL
1 stop20h 19m
Frontier
Deal found 3/9![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/88:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Sun 4/127:35 am
SLC
- STL
1 stop25h 13m
Frontier
Deal found 3/9![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 3/9. 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 4/88:16 pm
STL
- SLC
1 stop4h 53m
Frontier
Thu 4/167:35 am
SLC
- STL
1 stop10h 46m
Frontier
Deal found 3/9![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Fri 4/108:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Wed 4/157:49 pm
SLC
- STL
1 stop22h 32m
Frontier
Deal found 3/9![Frontier logo]()
$194
This Frontier deal was found by Cheapflights users on 3/9. 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.
Thu 4/239:55 pm
STL
- SLC
1 stop11h 57m
Frontier
Thu 4/3010:48 pm
SLC
- STL
1 stop11h 34m
Frontier
Deal found 3/9![Frontier logo]()
$181
One-way flights from St. Louis to Salt Lake CitySearch for one-way flight options from St. Louis to Salt Lake City. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
Search for one-way flight options from St. Louis to Salt Lake City. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
Sat 4/258:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 3/4![Frontier logo]()
$63
This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 3/5![Frontier logo]()
$65
This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:19 pm
STL
- SLC
1 stop15h 55m
Frontier
Deal found 3/5![Frontier logo]()
$67
This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Deal found 3/5![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/18:16 pm
STL
- SLC
1 stop15h 38m
Frontier
Deal found 3/5![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
Fri 4/38:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Deal found 3/6![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
Sat 5/98:12 pm
STL
- SLC
1 stop12h 49m
Frontier
Deal found 3/4![Frontier logo]()
$76
This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:06 pm
STL
- SLC
1 stop12h 55m
Frontier
Deal found 3/5![Frontier logo]()
$77
This Trip.com deal was found by Cheapflights users on 3/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:17 pm
STL
- SLC
1 stop15h 57m
Frontier
Deal found 3/8![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
Mon 4/278:17 pm
STL
- SLC
1 stop15h 57m
Frontier
Deal found 3/4![Frontier logo]()
$82
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 March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $153 (Kiwi.com) |
One-way from | $63 (Kiwi.com) |
Popular in | February |
Cheapest in | April |
Average price | $409 |
Good round-trip deal | $309 or less |
Good one-way deal | $171 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 March 10, 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
Cheapest round-trip
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Wed 4/1
4:54 pm-12:52 pm
1 stop20h 58m
Salt Lake City
Sun 4/5
11:49 am-9:48 am
1 stop20h 59m
$246
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Thu 5/7
3:50 pm-10:40 pm
2 stops7h 50m
Salt Lake City
Mon 5/11
5:45 am-1:10 pm
2 stops6h 25m
$405
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Thu 4/9
6:12 pm-8:25 pm
Nonstop3h 13m
Salt Lake City
Sat 4/11
11:15 am-5:08 pm
1 stop4h 53m
$429
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Wed 4/1
2:12 pm-4:31 pm
Nonstop3h 19m
Salt Lake City
Sun 4/5
1:20 pm-5:07 pm
Nonstop2h 47m
$469
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Fri 5/22
8:30 am-3:40 pm
2 stops8h 10m
Salt Lake City
Tue 5/26
11:10 am-9:10 pm
2 stops9h 00m
$477
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Thu 3/26
7:15 am-9:37 am
Nonstop3h 22m
Salt Lake City
Mon 3/30
8:35 pm-12:21 am
Nonstop2h 46m
$569
Quickest round-trip
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Tue 5/26
7:00 am-9:11 am
Nonstop3h 11m
Salt Lake City
Fri 5/29
8:38 pm-12:30 am
Nonstop2h 52m
$617
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Fri 3/20
2:12 pm-4:31 pm
Nonstop3h 19m
Salt Lake City
Sun 3/22
8:35 pm-12:21 am
Nonstop2h 46m
$619
Cheapest one-way
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Sat 5/23
8:08 pm-12:04 am
1 stop4h 56m
$125
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Mon 3/16
8:12 pm-12:14 am
1 stop5h 02m
$158
Showing 1-10 of 19 resultsSorted by cheapest first
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Salt Lake City flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
STL-SLC
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
Prices
Airlines
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 March 6, 2026.
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 37 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, November is the cheapest month in which you can book a flight from St. Louis to Salt Lake City (average of $153). Flying from St. Louis to Salt Lake City in January 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 March 10, 2026.
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 24% 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 February 21, 2026.
Travelers seeking maximum savings on their St. Louis to Salt Lake City flight should consider departing on Tuesday afternoons 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 March 10, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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.
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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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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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$107 | Average$248 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$260 | Average$410 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$276 | Average$352 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$345 | Average$554 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$359 | Average$458 | FlexibilityNo cancel fee | On-timeN/A |