$68+ Cheap flights from Utah to St. Louis (STL)
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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — STL
Sep 2 — Sep 91
Round-trip
1 adult, Economy
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Find cheap flights from Utah to St. Louis with Cheapflights
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Utah to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Utah to St. LouisExplore the most affordable flight options available from Utah to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.
Explore the most affordable flight options available from Utah to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/2311:40 am
SLC
- STL
1 stop6h 37m
Frontier
Wed 9/308:10 pm
STL
- SLC
1 stop20h 11m
Frontier
Deal found 7/31![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/2511:40 am
SLC
- STL
1 stop6h 37m
Frontier
Wed 9/308:10 pm
STL
- SLC
1 stop20h 11m
Frontier
Deal found 7/30![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/1611:40 am
SLC
- STL
1 stop6h 37m
Frontier
Mon 9/218:10 pm
STL
- SLC
1 stop15h 31m
Frontier
Deal found 7/30![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Thu 9/36:05 am
SLC
- STL
1 stop12h 08m
Frontier
Wed 9/98:10 pm
STL
- SLC
1 stop15h 31m
Frontier
Deal found 7/30![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 9/1611:40 am
SLC
- STL
1 stop6h 37m
Frontier
Wed 9/238:10 pm
STL
- SLC
1 stop15h 31m
Frontier
Deal found 8/1![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Tue 9/87:08 pm
SLC
- STL
1 stop23h 09m
Frontier
Fri 9/118:10 pm
STL
- SLC
1 stop15h 31m
Frontier
Deal found 7/29![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Thu 10/14:16 pm
SLC
- STL
1 stop26h 01m
Frontier
Thu 10/88:10 pm
STL
- SLC
1 stop12h 53m
Frontier
Deal found 7/31![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Tue 10/137:25 am
SLC
- STL
1 stop10h 50m
Frontier
Sun 10/188:10 pm
STL
- SLC
1 stop12h 53m
Frontier
Deal found 7/30![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/2511:40 am
SLC
- STL
1 stop6h 37m
Frontier
Mon 9/288:10 pm
STL
- SLC
1 stop15h 31m
Frontier
Deal found 7/30![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 10/126:52 pm
SLC
- STL
1 stop23h 23m
Frontier
Thu 10/158:10 pm
STL
- SLC
1 stop12h 53m
Frontier
Deal found 7/29![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/66:05 am
SLC
- STL
1 stop12h 08m
Frontier
Sun 9/131:02 pm
STL
- SLC
1 stop27h 19m
Frontier
Deal found 7/31![Frontier logo]()
$174
Best flights from Utah to St. LouisDiscover carefully curated flight deals from Utah to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 3, 2026.
Discover carefully curated flight deals from Utah to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 3, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:53 am
SLC
- STL
2 stops15h 06m
Alaska Airlines
Tue 10/137:02 am
STL
- SLC
2 stops12h 57m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 7/29. 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.
Sat 9/1211:00 am
SLC
- STL
2 stops8h 40m
Southwest
Sat 9/197:00 am
STL
- SLC
2 stops8h 10m
Southwest
Deal found 7/29![Southwest logo]()
$379
This Delta deal was found by Cheapflights users on 7/31. 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 10/19:35 am
SLC
- STL
Nonstop2h 55m
Delta
Thu 10/87:00 pm
STL
- SLC
Nonstop3h 17m
Delta
Deal found 7/31![Delta logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:26 pm
SLC
- STL
2 stops21h 44m
Alaska Airlines
Mon 9/216:29 am
STL
- SLC
1 stop9h 09m
Alaska Airlines
Deal found 8/2![Alaska Airlines logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:26 pm
SLC
- STL
2 stops21h 44m
Alaska Airlines
Mon 9/286:29 am
STL
- SLC
2 stops15h 30m
Alaska Airlines
Deal found 8/2![Alaska Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 8/2. 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.
Sat 10/311:30 am
SLC
- STL
2 stops7h 50m
Southwest
Wed 10/71:25 pm
STL
- SLC
2 stops8h 35m
Southwest
Deal found 8/2![Southwest logo]()
$435
This Delta deal was found by Cheapflights users on 7/31. 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 10/221:55 pm
SLC
- STL
Nonstop2h 49m
Delta
Sun 10/257:00 pm
STL
- SLC
Nonstop3h 17m
Delta
Deal found 7/31![Delta logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:34 pm
SLC
- STL
2 stops22h 47m
Alaska Airlines
Wed 9/236:29 am
STL
- SLC
2 stops13h 27m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 8/2. 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.
Sat 9/269:35 am
SLC
- STL
Nonstop2h 55m
Delta
Mon 9/282:25 pm
STL
- SLC
Nonstop3h 13m
Delta
Deal found 8/2![Delta logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/232:34 pm
SLC
- STL
2 stops22h 47m
Alaska Airlines
Sat 9/266:29 am
STL
- SLC
2 stops13h 27m
Alaska Airlines
Deal found 8/3![Alaska Airlines logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:44 am
SLC
- STL
1 stop7h 26m
Alaska Airlines
Thu 10/87:02 am
STL
- SLC
1 stop8h 04m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$443
Last-minute flights from Utah to St. LouisDiscover last-minute flight deals from Utah to St. Louis. Data last updated August 3, 2026 and is based on user searches.
Discover last-minute flight deals from Utah to St. Louis. Data last updated August 3, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 8/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:52 pm
SLC
- STL
1 stop27h 23m
Frontier
Wed 8/128:08 pm
STL
- SLC
1 stop17h 19m
Frontier
Deal found 8/1![Frontier logo]()
$260
This Super.com deal was found by Cheapflights users on 8/2. 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.
Sat 8/88:16 am
SLC
- STL
1 stop10h 07m
Frontier
Wed 8/127:03 pm
STL
- SLC
1 stop15h 23m
Frontier
Deal found 8/2![Frontier logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Thu 8/206:05 am
SLC
- STL
1 stop12h 08m
Frontier
Mon 8/247:58 pm
STL
- SLC
1 stop12h 33m
Frontier
Deal found 7/29![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/216:05 am
SLC
- STL
1 stop12h 08m
Frontier
Sun 8/237:58 pm
STL
- SLC
1 stop12h 33m
Frontier
Deal found 7/29![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 8/227:08 pm
SLC
- STL
1 stop23h 05m
Frontier
Mon 8/247:58 pm
STL
- SLC
1 stop12h 33m
Frontier
Deal found 8/1![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Thu 8/277:08 pm
SLC
- STL
2 stops21h 14m
Frontier
Mon 8/317:58 pm
STL
- SLC
1 stop12h 33m
Frontier
Deal found 8/2![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 8/307:08 pm
SLC
- STL
1 stop23h 05m
Frontier
Sun 9/67:58 pm
STL
- SLC
1 stop12h 33m
Frontier
Deal found 7/30![Frontier logo]()
$193
One-way flights from Utah to St. LouisSearch for one-way flight options from Utah to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
Search for one-way flight options from Utah to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Tue 10/136:52 pm
SLC
- STL
1 stop23h 23m
Frontier
Deal found 7/29![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Tue 9/154:16 pm
SLC
- STL
1 stop26h 01m
Frontier
Deal found 7/30![Frontier logo]()
$71
This Trip.com deal was found by Cheapflights users on 7/29. 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.
Tue 10/207:25 am
SLC
- STL
1 stop10h 50m
Frontier
Deal found 7/29![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Tue 9/224:16 pm
SLC
- STL
1 stop26h 01m
Frontier
Deal found 7/29![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Tue 9/87:08 pm
SLC
- STL
1 stop23h 09m
Frontier
Deal found 7/30![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/911:40 am
SLC
- STL
1 stop6h 37m
Frontier
Deal found 7/31![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 11/67:25 am
SLC
- STL
1 stop10h 50m
Frontier
Deal found 8/2![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Thu 10/159:28 pm
SLC
- STL
1 stop20h 47m
Frontier
Deal found 7/31![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/2511:40 am
SLC
- STL
1 stop6h 37m
Frontier
Deal found 7/29![Frontier logo]()
$86
Find flight deals from Utah to St. Louis
Keep the following information in mind while searching for Utah to St. Louis flight deals. Data was last updated August 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $152 (Kiwi.com) |
One-way from | $68 (Kiwi.com) |
Popular in | November |
Cheapest in | August |
Average price | $399 |
Good round-trip deal | $439 or less |
Good one-way deal | $279 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Utah 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, Cheapflights users made 2,558,603 searches. Data last updated August 3, 2026.
Use the filters below to find and compare flights from Utah to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 10/7
7:53 am-11:59 pm
2 stops15h 06m
Lambert-St Louis
Tue 10/13
7:02 am-6:59 pm
2 stops12h 57m
$293
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 9/11
6:26 pm-5:10 pm
2 stops21h 44m
Lambert-St Louis
Mon 9/21
6:29 am-2:38 pm
1 stop9h 09m
$355
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Sat 9/12
11:00 am-8:40 pm
2 stops8h 40m
Lambert-St Louis
Sat 9/19
7:00 am-2:10 pm
2 stops8h 10m
$379
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 9/25
6:26 pm-5:10 pm
2 stops21h 44m
Lambert-St Louis
Mon 9/28
6:29 am-8:59 pm
2 stops15h 30m
$389
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 9/16
2:34 pm-2:21 pm
2 stops22h 47m
Lambert-St Louis
Wed 9/23
6:29 am-6:56 pm
2 stops13h 27m
$404
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 9/23
2:34 pm-2:21 pm
2 stops22h 47m
Lambert-St Louis
Sat 9/26
6:29 am-6:56 pm
2 stops13h 27m
$404
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Sat 10/3
11:30 am-8:20 pm
2 stops7h 50m
Lambert-St Louis
Wed 10/7
1:25 pm-9:00 pm
2 stops8h 35m
$435
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Thu 10/1
8:44 am-5:10 pm
1 stop7h 26m
Lambert-St Louis
Thu 10/8
7:02 am-2:06 pm
1 stop8h 04m
$443
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Thu 10/1
9:35 am-1:30 pm
Nonstop2h 55m
Lambert-St Louis
Thu 10/8
7:00 pm-9:17 pm
Nonstop3h 17m
$449
Quickest round-trip
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Thu 10/22
1:55 pm-5:44 pm
Nonstop2h 49m
Lambert-St Louis
Sun 10/25
7:00 pm-9:17 pm
Nonstop3h 17m
$449
Showing 1-10 of 23 resultsSorted by cheapest first
Best time to book a flight from Utah to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Utah with our price prediction graph.
SLC-STL
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 Utah to St. Louis
USUT-STL
SLC-STL
What is the cheapest month to book a flight from Utah to St. Louis?
Currently, October is the cheapest month in which you can book a flight from Utah to St. Louis (average of $394). Flying from Utah to St. Louis in November is currently the most expensive (average of $498). 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 UT to STL?
Find hourly flight availability from Utah to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 3, 2026.
It’s typically best to fly out from Utah to St. Louis at noon. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from Utah to St. Louis
Explore weekly flight availability from Utah to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 3, 2026.
The most flights from USUT to STL are scheduled on a Friday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Utah to St. Louis?
Airfare is below average for this route at the moment.
Utah to St. Louis flights typically cost between $242 and $508 in September.The cheapest round-trip price found within the last 5 days was $152 on Frontier (Sep 23-Sep 30).
How far ahead should I book a flight from Utah to St. Louis?
The best time to book flights from Utah to St. Louis is 19 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Utah to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from Utah to St. Louis. Price data was last updated on August 1, 2026.
Travelers seeking maximum savings on their Utah to St. Louis flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Utah to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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Top 3 airlines flying from Utah to St. Louis
Discover the top 3 airlines that operate flights from Utah to St. Louis. 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 August 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$160 | Average$256 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$264 | Average$442 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$399 | Average$497 | FlexibilityNo cancel fee | On-timeN/A |