$83 Find Cheap Flights from St. Louis to Utah - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Utah departing on 9/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from St. Louis to Utah

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Salt Lake City
Salt Lake City1 stop$161
Moab
Moab2 stops$344
Cedar City
Cedar City1 stop$910
Vernal
Vernal2 stops$384
Salt Lake City
Salt Lake City1 stop$161
Moab
Moab2 stops$344
Cedar City
Cedar City1 stop$910
Vernal
Vernal2 stops$384

Book Cheap St. Louis to Utah Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Utah that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Utah

Wed, Sep 16 - Wed, Sep 23
Frontier Logo
8:10 pm - 10:41 amSTL  Lambert-St Louis-SLC Salt Lake City
15h 31m1 stop Denver Intl
Frontier Logo
8:00 am - 7:17 pmSLC  Salt Lake City-STL Lambert-St Louis
10h 17m1 stop Denver Intl
$161Frontier
Sun, Sep 13 - Wed, Sep 23
Frontier Logo
1:02 pm - 10:41 amSTL  Lambert-St Louis-SLC Salt Lake City
22h 39m1 stop Denver Intl
Frontier Logo
8:00 am - 7:17 pmSLC  Salt Lake City-STL Lambert-St Louis
10h 17m1 stop Denver Intl
$163Frontier
Thu, Oct 1 - Sat, Oct 3
Multiple Airlines Logo
3:09 pm - 9:38 pmSTL  Lambert-St Louis-SLC Salt Lake City
7h 29m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
11:40 am - 7:17 pmSLC  Salt Lake City-STL Lambert-St Louis
6h 37m1 stop Denver Intl
$328Multiple Airlines
Tue, Aug 25 - Mon, Aug 31
Alaska Airlines Logo
6:08 pm - 6:56 pmSTL  Lambert-St Louis-SLC Salt Lake City
25h 48m2 stops Portland San Diego
Alaska Airlines Logo
6:26 pm - 5:10 pmSLC  Salt Lake City-STL Lambert-St Louis
21h 44m2 stops San Diego Portland
$330Alaska Airlines
Fri, Nov 13 - Sun, Nov 15
Delta Logo
9:45 am - 4:40 pmSTL  Lambert-St Louis-CNY Moab Canyonlands Field
7h 55m2 stops Minneapolis St Paul Salt Lake City
Delta Logo
5:36 pm - 12:30 amCNY  Moab Canyonlands Field-STL Lambert-St Louis
5h 54m1 stop Salt Lake City
$344Delta
Sat, Sep 5 - Sun, Sep 6
Southwest Logo
2:05 pm - 9:10 pmSTL  Lambert-St Louis-SLC Salt Lake City
8h 05m2 stops Dallas Love Field Denver Intl
Southwest Logo
7:30 am - 3:50 pmSLC  Salt Lake City-STL Lambert-St Louis
7h 20m2 stops Phoenix Sky Harbor Intl Omaha Eppley Airfield
$398Southwest
Thu, Oct 1 - Sat, Oct 3
Southwest Logo
5:30 am - 10:40 amSTL  Lambert-St Louis-SLC Salt Lake City
6h 10m1 stop Las Vegas Harry Reid Intl
Southwest Logo
3:10 pm - 11:35 pmSLC  Salt Lake City-STL Lambert-St Louis
7h 25m1 stop Phoenix Sky Harbor Intl
$407Southwest
Fri, Sep 11 - Sat, Sep 12
Delta Logo
5:00 pm - 7:15 pmSTL  Lambert-St Louis-SLC Salt Lake City
3h 15mnonstop
Delta Logo
5:40 pm - 9:31 pmSLC  Salt Lake City-STL Lambert-St Louis
2h 51mnonstop
$449Delta
Fri, Oct 30 - Fri, Nov 6
United Airlines Logo
1:40 pm - 9:19 pmSTL  Lambert-St Louis-SLC Salt Lake City
8h 39m1 stop Denver Intl
United Airlines Logo
5:18 am - 2:30 pmSLC  Salt Lake City-STL Lambert-St Louis
8h 12m2 stops Denver Intl Chicago O'Hare Intl
$531United Airlines
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
1:36 pm - 9:09 pmSTL  Lambert-St Louis-SLC Salt Lake City
8h 33m1 stop Denver Intl
United Airlines Logo
5:20 am - 3:38 pmSLC  Salt Lake City-STL Lambert-St Louis
9h 18m2 stops Denver Intl Chicago O'Hare Intl
$531United Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Utah flights

Get data-powered insights and trends into flights from St. Louis to Utah to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Utah?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Utah departing in September.

Flight prices are below average for this route right now.

Flights to Utah from St. Louis usually cost between $349 and $549 in September.
The lowest price found in the past 5 days was $161 on Frontier (Sep 16-Sep 23).

What is the cheapest St. Louis to Utah flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Utah from St. Louis found in the last 5 days was to Salt Lake City, at $196 round-trip. The most popular route is from St. Louis (STL) to Salt Lake City (SLC), and the cheapest round-trip airline ticket found on this route in the last 5 days was $196.

What is the cheapest time of day to fly to Utah?

The average price for all round-trip flights from St. Louis to Utah depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Utah is generally in the evening, when round-trip flights cost $383 on average. Morning departures are around 34% more expensive than evening flights, on average. The most expensive time of day to fly to Utah is generally in the morning, which is peak travel time and where the average cost of a ticket is $512.

What is the cheapest month to fly from St. Louis to Utah?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Utah, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Utah is September, when tickets cost $390 (return) on average. On the other hand, the most expensive months are July and February, when the average cost of round-trip tickets is $512 and $499 respectively.

What’s the cheapest day of the week to fly from St. Louis to Utah?

The average price of all round-trip flights from St. Louis to Utah clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from St. Louis to Utah, look for departures on Thursdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Utah, Tuesday is the cheapest day to fly and Monday is the most expensive.

How far in advance should I book a flight from St. Louis to Utah?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Utah, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Utah, you should book around 4 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low season

November

Cheapest flight

$83
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from St. Louis to Salt Lake City

FAQs - booking Utah flights

  • How does KAYAK find such low prices on flights from St. Louis to Utah?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Utah.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Utah?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Utah is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Utah?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Utah with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Utah?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Utah up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from St. Louis to Utah

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Utah. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Utah? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4218 reviews
8.0Comfort
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
Airline reviews

Exceptional. The gate crew responded quickly and got me onto this earlier flight as the final passenger, saving me more than four hours of wait time for my reserved flight.

10.0 ExcellentAnonymous, Aug 2026
Read more Southwest reviews

Exceptional. The gate crew responded quickly and got me onto this earlier flight as the final passenger, saving me more than four hours of wait time for my reserved flight.

The flight was delayed due to earlier issues at other airports. The crew was excellent & made it a good trip.

Snacks are always pretzels. Why can't you also offer peanuts ?

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Very good. Sad to learn Southwest is going start to charge for bags

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

The flight was promptly on schedule and Southwest delivered everything they promised. No excuses for any shortfalls just 100% ownership of their responsibilities and business. The boarding and seating policy is a complete shambles. What started out as a great idea when Southwest first hit the market has been turned into a disaster due to the lack of integrity in many of the people who fly Southwest and take advantage of Southwest generosity at the expense of their fellow passengers.

Crew was excellent - Plane was fine. Media was good, could use more kid shows; Not a fan of the brownie brittle -- snack could be slightly better.

Left on time and arrived early. Brand new plane and no parts missing. Comfortable seats. The actual Captain spoke prior to the flight and reassured everyone about safety. Crew was so nice and fun. Perfect flight!

Everything went smoothly and the plane wasn’t full. It was delayed though. The delay was increased due to a crew change which was frustrating.

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

We had a terrible experience. The flight was delayed several hours, so we missed our connection. We were told to wait at the airport. At around 11:00 pm, the flight was cancelled. There were no available seats out of Jackson for the next two days. Fortunately, we had the foresight to rebook on United for the next day. However, we had to spend a long day at the airport and an overnight at a mediocre hotel. It was a miserable way to spend part of our vacation. We also sacrificed our $450 deposit on our California hotel because we could not get there.

Crew was absolutely fantastic and we’re so welcoming and friendly ❤️

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

Fine not above and beyond as I had a connection that was delayed due to maintenance

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

737 Max was leaking water into the cabin through the windows. Overhead bins opened on landing. Bad bad plane.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

First time flying internationally with AA and probably my last. Not military friendly at all. Didn't allow free checked bag for military family members (dependents) on orders like other airlines. We were charged $100 for baggage weight overage (5 lbs!)even though we had military orders allowing us extra.. Didn’t allow military members to board early. Inefficient and long wait time to board. Seats are smaller and more uncomfortable than other airlines.. no drink service for over 7 hrs of flight! After initial meal was served, the crew never offered a snack or drinks until the breakfast's was served 1 1/2 hrs before landing. Overall expensive and poor experience for the entire flight.

I know Frontier is a “no-frills” airline. I understand the concept. However, I jumped on some tickets for our family vacation, expecting to play a bit of a game to figure out the family bags and not over spend. In the end, I got the short end of this deal by far. 1. I did not expect them to charge the baggage fee for each direction. It makes the fee look high-ish at a glance, but reasonable. Then when you get to checkout and realize you have to pay it twice to come home with your luggage, it becomes ridiculous. 2. The low checked bag weight limit. I am used to packing a 50lb bag with my preferred airline. Frontier’s artificially low 40lb limit more quickly triggers the extra weight fee, which almost DOUBLES the price of the bag if you go over ($79 for the bag/$75 for the next 10 lbs) 3. The fee for a carry-on bag is the same as a checked bag but with a lower size and weight limit. Make it make sense! 4. The seats are terrible. My 2.5 hour flight almost had me losing my mind. I’m 6’3” and my femurs barely fit in the space provided. My knees had to wiggle just right to jam into the crack next to the armrest of the seat in front of me. The cushioning was thin and inadequate. I am tall but I’m not a freak. These seats are unacceptable. 5. I overheard the woman next to me speaking with the gate agent about being charged a $25 fee for not checking in online - she checked in at the airport counter when she arrived. That’s ridiculous. She was old and in a wheelchair. She had a paper boarding pass, and was obviously not tech savvy. She should not be punished for that. 6. They do not have good placement in the terminals. It was always out on the end or down on a subfloor, and we had to walk out on the tarmac almost every time. In Denver. Their home airport! 7. Every time I loaded a new page on the website while buying my tickets or my bags, it was constantly trying to upsell me on some esoteric bundle. Like, a pop-up every time. Very annoying. 8. No screens in the boarding area (at least where we were) to confirm you’re in the right place. Just static gate number signs. I am sure these are standard practices for Frontier, and I should have read more about them before I purchased tickets, but as a result of this single round trip, I do not plan to ever use this cut-rate airline again. I would rather pay the normal amount for a ticket and be treated like a customer instead of a mark.

Our flight was delayed 2 hours and when they changed the the time to 1 hour I wasn't alerted and when I checked the gate the plane was still there but they already shut the doors so I had to buy another flight.

No way to get boarding pass on my phone. In order to print the bag ticket a boarding pass is needed. Asked the agent to print me one, they said they typically do not due this as its so much work. I showed the email confirmation and I asked how i could do it my self the agent replied he did not know as there was no link. The flight was delayed due to an attendant forgetting to come to work. On the flight no drinks were offered only for purchase meals.

The seats were dirty with crumbs and trash , looked it had not been cleaned up from a previous flight

The last time I flew Frontier was in the 1960s when it was a “real” airline. We flew this time because of the price & schedule. As the saying goes, you get what you pay for.

I’ve never flown frontier without a flight getting canceled. I understand that things go wrong with planes, but all other airlines handle cancellations so well. Frontier becomes a dumpster fire if a problem appears for them.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

Left Denver late, then sat on tarmac 30 min after arrival

I have come to accept Frontier as an absolute no-frills airline, paying for everything I want. A 4.5-hour flight should provide me with a complimentary beverage—rather, $4.9x for a soda. Or a bottle of water ought to be extended at no cost. 4 beers are on the menu, but only 1 type of beer is available (at $9.95). Also, so many restrictions to using a voucher from Barclay‘s Credit Card. Finally, try to reach a live agent for Frontier- impossible!

It’s a cheap airline and I wish if they had better seats.

Everything you need to know for your flight from St. Louis to Utah

Information on your arrival and departure airports