$88+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — STL
Jul 18 — Jul 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Utah to St. Louis 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.Cheap flight deals from Utah to St. Louis
Cheapest
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 June 18, 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 June 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 7/76:05 am
SLC
- STL
1 stop12h 18m
Frontier
Tue 7/147:03 pm
STL
- SLC
1 stop15h 23m
Frontier
Deal found 6/16![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Mon 8/318:16 am
SLC
- STL
1 stop10h 07m
Frontier
Tue 9/18:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/16![Frontier logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 8/251:12 pm
SLC
- STL
1 stop5h 11m
Frontier
Wed 8/268:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/16![Frontier logo]()
$201
This Frontier deal was found by Cheapflights users on 6/17. 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.
Tue 8/258:16 am
SLC
- STL
1 stop10h 07m
Frontier
Tue 9/13:33 pm
STL
- SLC
1 stop5h 47m
Frontier
Deal found 6/17![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 7/78:16 am
SLC
- STL
1 stop10h 07m
Frontier
Wed 7/158:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/16![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/151:47 pm
SLC
- STL
1 stop27h 28m
Frontier
Wed 7/228:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/17![Frontier logo]()
$215
This Mytrip deal was found by Cheapflights users on 6/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:05 am
SLC
- STL
1 stop12h 18m
Frontier
Wed 8/58:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/14![Frontier logo]()
$220
This Booking.com deal was found by Cheapflights users on 6/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:16 am
SLC
- STL
1 stop10h 07m
Frontier
Tue 8/47:03 pm
STL
- SLC
1 stop15h 23m
Frontier
Deal found 6/16![Frontier logo]()
$222
This CheapOair deal was found by Cheapflights users on 6/14. 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 7/226:05 am
SLC
- STL
1 stop12h 18m
Frontier
Tue 8/117:03 pm
STL
- SLC
1 stop15h 23m
Frontier
Deal found 6/14![Frontier logo]()
$230
This Expedia deal was found by Cheapflights users on 6/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:16 am
SLC
- STL
1 stop10h 07m
Frontier
Sat 8/158:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/13![Frontier logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 7/31:50 pm
SLC
- STL
1 stop23h 16m
Frontier
Wed 7/88:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/14![Frontier logo]()
$236
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 June 18, 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 June 18, 2026.
This Southwest deal was found by Cheapflights users on 6/17. 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.
Wed 12/29:30 am
SLC
- STL
1 stop4h 50m
Southwest
Wed 12/912:40 pm
STL
- SLC
2 stops7h 00m
Southwest
Deal found 6/17![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 6/14. 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 8/288:50 pm
SLC
- STL
Nonstop2h 51m
Delta
Sun 8/307:45 pm
STL
- SLC
Nonstop3h 10m
Delta
Deal found 6/14![Delta logo]()
$439
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am
SLC
- STL
2 stops9h 55m
Southwest
Wed 8/262:50 pm
STL
- SLC
2 stops6h 40m
Southwest
Deal found 6/16![Southwest logo]()
$373
This Southwest deal was found by Cheapflights users on 6/13. 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.
Tue 8/117:00 am
SLC
- STL
2 stops9h 55m
Southwest
Sat 8/152:05 pm
STL
- SLC
2 stops8h 00m
Southwest
Deal found 6/13![Southwest logo]()
$390
This Delta deal was found by Cheapflights users on 6/17. 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 12/23:10 pm
SLC
- STL
Nonstop2h 46m
Delta
Wed 12/97:55 pm
STL
- SLC
Nonstop3h 17m
Delta
Deal found 6/17![Delta logo]()
$439
This Delta deal was found by Cheapflights users on 6/13. 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 8/118:50 pm
SLC
- STL
Nonstop2h 51m
Delta
Sat 8/155:00 pm
STL
- SLC
Nonstop3h 09m
Delta
Deal found 6/13![Delta logo]()
$439
This Delta deal was found by Cheapflights users on 6/17. 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 8/289:45 am
SLC
- STL
Nonstop2h 53m
Delta
Fri 9/47:45 pm
STL
- SLC
Nonstop3h 10m
Delta
Deal found 6/17![Delta logo]()
$439
This Delta deal was found by Cheapflights users on 6/17. 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 7/318:50 pm
SLC
- STL
Nonstop2h 51m
Delta
Tue 8/48:00 am
STL
- SLC
Nonstop3h 12m
Delta
Deal found 6/17![Delta logo]()
$439
This Delta deal was found by Cheapflights users on 6/15. 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 9/185:20 pm
SLC
- STL
1 stop5h 00m
Delta
Sun 9/202:27 pm
STL
- SLC
Nonstop3h 13m
Delta
Deal found 6/15![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 6/14. 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 9/115:40 pm
SLC
- STL
Nonstop2h 51m
Delta
Mon 9/141:55 pm
STL
- SLC
1 stop9h 09m
Delta
Deal found 6/14![Delta logo]()
$449
Last-minute flights from Utah to St. LouisDiscover last-minute flight deals from Utah to St. Louis. Data last updated June 18, 2026 and is based on user searches.
Discover last-minute flight deals from Utah to St. Louis. Data last updated June 18, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 7/31:50 pm
SLC
- STL
1 stop23h 16m
Frontier
Wed 7/88:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/14![Frontier logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 7/76:05 am
SLC
- STL
1 stop12h 18m
Frontier
Tue 7/147:03 pm
STL
- SLC
1 stop15h 23m
Frontier
Deal found 6/16![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 7/78:16 am
SLC
- STL
1 stop10h 07m
Frontier
Wed 7/158:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/16![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/76:05 am
SLC
- STL
1 stop12h 18m
Frontier
Sun 7/127:10 pm
STL
- SLC
1 stop15h 16m
Frontier
Deal found 6/17![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/151:47 pm
SLC
- STL
1 stop27h 28m
Frontier
Wed 7/228:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/17![Frontier logo]()
$215
This Booking.com deal was found by Cheapflights users on 6/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:05 am
SLC
- STL
1 stop12h 18m
Frontier
Wed 7/227:03 pm
STL
- SLC
1 stop15h 23m
Frontier
Deal found 6/16![Frontier logo]()
$251
This CheapOair deal was found by Cheapflights users on 6/14. 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 7/226:05 am
SLC
- STL
1 stop12h 18m
Frontier
Tue 8/117:03 pm
STL
- SLC
1 stop15h 23m
Frontier
Deal found 6/14![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/226:05 am
SLC
- STL
1 stop12h 18m
Frontier
Sun 7/267:10 pm
STL
- SLC
1 stop15h 16m
Frontier
Deal found 6/16![Frontier logo]()
$250
This Booking.com deal was found by Cheapflights users on 6/13. 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.
Sat 7/258:16 am
SLC
- STL
1 stop10h 07m
Frontier
Tue 7/288:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/13![Frontier logo]()
$246
This Mytrip deal was found by Cheapflights users on 6/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:05 am
SLC
- STL
1 stop12h 18m
Frontier
Wed 8/58:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/14![Frontier logo]()
$220
This Booking.com deal was found by Cheapflights users on 6/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:16 am
SLC
- STL
1 stop10h 07m
Frontier
Tue 8/47:03 pm
STL
- SLC
1 stop15h 23m
Frontier
Deal found 6/16![Frontier logo]()
$222
This Booking.com deal was found by Cheapflights users on 6/17. 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.
Fri 7/311:47 pm
SLC
- STL
1 stop27h 28m
Frontier
Tue 8/48:08 pm
STL
- SLC
1 stop12h 23m
Frontier
Deal found 6/17![Frontier logo]()
$242
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 June 18, 2026.
Search for one-way flight options from Utah to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 18, 2026.
This Trip.com deal was found by Cheapflights users on 6/17. 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 7/286:05 am
SLC
- STL
1 stop12h 18m
Frontier
Deal found 6/17![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/151:47 pm
SLC
- STL
1 stop27h 28m
Frontier
Deal found 6/17![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/141:47 pm
SLC
- STL
1 stop27h 18m
Frontier
Deal found 6/18![Frontier logo]()
$90
This Trip.com deal was found by Cheapflights users on 6/17. 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.
Wed 7/296:05 am
SLC
- STL
1 stop12h 18m
Frontier
Deal found 6/17![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Tue 7/78:16 am
SLC
- STL
1 stop10h 07m
Frontier
Deal found 6/16![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 8/48:16 am
SLC
- STL
1 stop10h 07m
Frontier
Deal found 6/17![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 8/268:16 am
SLC
- STL
1 stop10h 07m
Frontier
Deal found 6/17![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 8/318:16 am
SLC
- STL
1 stop10h 07m
Frontier
Deal found 6/14![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 8/118:16 am
SLC
- STL
1 stop10h 07m
Frontier
Deal found 6/13![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/81:47 pm
SLC
- STL
1 stop27h 28m
Frontier
Deal found 6/16![Frontier logo]()
$99
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 June 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $189 (Kiwi.com) |
One-way from | $88 (Trip.com) |
Popular in | November |
Cheapest in | August |
Average price | $450 |
Good round-trip deal | $449 or less |
Good one-way deal | $628 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 June 18, 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 12/2
9:30 am-3:20 pm
1 stop4h 50m
Lambert-St Louis
Wed 12/9
12:40 pm-6:40 pm
2 stops7h 00m
$368
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Tue 8/25
7:00 am-5:55 pm
2 stops9h 55m
Lambert-St Louis
Wed 8/26
2:50 pm-8:30 pm
2 stops6h 40m
$373
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Tue 8/11
7:00 am-5:55 pm
2 stops9h 55m
Lambert-St Louis
Sat 8/15
2:05 pm-9:05 pm
2 stops8h 00m
$390
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 8/28
8:50 pm-12:41 am
Nonstop2h 51m
Lambert-St Louis
Sun 8/30
7:45 pm-9:55 pm
Nonstop3h 10m
$439
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 12/2
3:10 pm-6:56 pm
Nonstop2h 46m
Lambert-St Louis
Wed 12/9
7:55 pm-10:12 pm
Nonstop3h 17m
$439
Quickest round-trip
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Tue 8/11
8:50 pm-12:41 am
Nonstop2h 51m
Lambert-St Louis
Sat 8/15
5:00 pm-7:09 pm
Nonstop3h 09m
$439
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 8/28
9:45 am-1:38 pm
Nonstop2h 53m
Lambert-St Louis
Fri 9/4
7:45 pm-9:55 pm
Nonstop3h 10m
$439
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 7/31
8:50 pm-12:41 am
Nonstop2h 51m
Lambert-St Louis
Tue 8/4
8:00 am-10:12 am
Nonstop3h 12m
$439
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 9/18
5:20 pm-11:20 pm
1 stop5h 00m
Lambert-St Louis
Sun 9/20
2:27 pm-4:40 pm
Nonstop3h 13m
$449
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 9/11
5:40 pm-9:31 pm
Nonstop2h 51m
Lambert-St Louis
Mon 9/14
1:55 pm-10:04 pm
1 stop9h 09m
$449
Showing 1-10 of 22 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, November is the cheapest month in which you can book a flight from Utah to St. Louis (average of $55). Flying from Utah to St. Louis in June is currently the most expensive (average of $249). 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 June 18, 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.
How much does it cost to fly round-trip from Utah to St. Louis?
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 45 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 June 13, 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
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
St. Louis flight routes
Top destinations
Alternative routes for Utah to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Utah to St. Louis by cabin class
Find flights from Utah to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Utah and St. Louis flights
Browse other Utah and St. Louis flight options. Last updated on June 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 18, 2026.
Utah to St. Louis flights
Consider these flights traveling from Utah to St. Louis.
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 June 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$160 | Average$256 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$271 | Average$455 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$399 | Average$493 | FlexibilityNo cancel fee | On-timeN/A |