SLC - STL

$58 Find Cheap Flights from Salt Lake City to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Salt Lake City to St. Louis departing on 2/24. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Salt Lake City to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Salt Lake City to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$141
Overall average: $417
Frontier
Fri 3/6Mon 3/9
SLC - STL • 1 stop
Cheapest non-stop
$399
Typical prices: $399-$799
Delta
Thu 2/19Mon 2/23
SLC - STL • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
For faster checks at SLC, use the Level 1 checkpoint.
Use MetroLink from STL to avoid traffic downtown.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
June
Cheapest • 5% price drop
July
Most popular
Good to know
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+1
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We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Salt Lake City to St. Louis (SLC-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Salt Lake City to St. Louis 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 Salt Lake City to St. Louis

Fri, Mar 6 - Mon, Mar 9
Frontier Logo
9:14 pm - 9:49 am
SLC
-
STL
11h 35m
1 stop
Frontier Logo
8:12 pm - 7:55 am
STL
-
SLC
12h 43m
1 stop
$141Frontier
Fri, Mar 6 - Sun, Mar 8
Frontier Logo
9:14 pm - 9:49 am
SLC
-
STL
11h 35m
1 stop
Frontier Logo
9:22 pm - 9:15 am
STL
-
SLC
12h 53m
1 stop
$153Frontier
Wed, Feb 4 - Thu, Feb 5
Frontier Logo
8:35 am - 2:46 pm
SLC
-
STL
5h 11m
1 stop
Frontier Logo
10:01 pm - 11:05 am
STL
-
SLC
14h 04m
1 stop
$155Frontier
Thu, Mar 5 - Mon, Mar 9
Frontier Logo
9:59 pm - 9:49 am
SLC
-
STL
10h 50m
1 stop
Frontier Logo
8:12 pm - 7:55 am
STL
-
SLC
12h 43m
1 stop
$158Frontier
Thu, Mar 5 - Sun, Mar 8
Frontier Logo
9:59 pm - 9:49 am
SLC
-
STL
10h 50m
1 stop
Frontier Logo
9:22 pm - 9:15 am
STL
-
SLC
12h 53m
1 stop
$171Frontier
Thu, Feb 12 - Fri, Feb 20
Frontier Logo
10:37 pm - 9:26 pm
SLC
-
STL
21h 49m
1 stop
Frontier Logo
8:20 pm - 8:44 am
STL
-
SLC
37h 24m
2 stops
$172Frontier
Mon, Feb 2 - Wed, Feb 11
Frontier Logo
6:20 am - 12:50 pm
SLC
-
STL
5h 30m
1 stop
Frontier Logo
3:28 pm - 9:49 pm
STL
-
SLC
7h 21m
1 stop
$180Frontier
Fri, Feb 13 - Mon, Feb 16
Frontier Logo
9:59 pm - 1:56 pm
SLC
-
STL
14h 57m
1 stop
Frontier Logo
10:11 pm - 1:33 pm
STL
-
SLC
16h 22m
1 stop
$181Frontier
Tue, Mar 3 - Sun, Mar 8
Frontier Logo
8:01 pm - 3:53 pm
SLC
-
STL
18h 52m
1 stop
Frontier Logo
9:22 pm - 9:15 am
STL
-
SLC
12h 53m
1 stop
$182Frontier
Thu, Feb 12 - Fri, Feb 20
Frontier Logo
10:37 pm - 9:26 pm
SLC
-
STL
21h 49m
1 stop
Frontier Logo
1:59 pm - 3:05 pm
STL
-
SLC
26h 06m
1 stop
$191Frontier
Booking Insights

KAYAK's insights & trends for Salt Lake City to St. Louis flights

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

What’s the cheapest day of the week to fly from Salt Lake City to St. Louis?

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

If your flying dates are flexible, you should consider flying to St. Louis on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Salt Lake City to St. Louis. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Salt Lake City to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Salt Lake City to St. Louis, 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 Salt Lake City to St. Louis is June, where tickets cost $398 (return) on average. On the other hand, the most expensive months are November and September, where the average cost of round-trip tickets is $513 and $434 respectively.

How far in advance should I book a flight from Salt Lake City to St. Louis?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Salt Lake City to St. Louis, 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 Salt Lake City to St. Louis, you should book around 4 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Salt Lake City to St. Louis

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Harriet Baskas

Harriet Baskas

Expert on SLC

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonDecember
Cheapest flight$58
Flight from Salt Lake City to St. Louis

When to book flights from Salt Lake City to St. Louis

Are your dates flexible? Find out the best times to travel from Salt Lake City to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Salt Lake City to St. Louis

  • What is the cheapest flight from Salt Lake City to St. Louis?

    In the last 3 days, the lowest price for a flight from Salt Lake City to St. Louis was $58 for a one-way ticket and $141 for a round-trip.

  • Do I need a passport to fly between Salt Lake City and St. Louis?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Salt Lake City to St. Louis?

    Delta, American Airlines, and Alaska Airlines offer inflight Wi-Fi service on the Salt Lake City to St. Louis flight route.

  • Which aircraft models fly most regularly from Salt Lake City to St. Louis?

    The Airbus A220-100 is the aircraft model that flies most regularly on the Salt Lake City to St. Louis flight route.

  • Which airline alliances offer flights from Salt Lake City to St. Louis?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Salt Lake City and St. Louis, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Salt Lake City to St. Louis?

    There are nonstop flights from Salt Lake City to St. Louis on a daily basis.

  • Which is the best airline for flights from Salt Lake City to St. Louis, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Salt Lake City to St. Louis are Southwest and Delta. With an average price for the route of $448 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $438 and an overall rating of 7.9.

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

    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 Salt Lake City to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Salt Lake City 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 Salt Lake City to St. Louis?

    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 to St. Louis with an airline and back to Salt Lake City with another airline. Booking your flights between Salt Lake City and STL can sometimes prove cheaper using this method.

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

    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 to St. Louis from Salt Lake City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Salt Lake City to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $298 or less one-way and $399 or less round-trip.

Prefer to fly direct from Salt Lake City to St. Louis?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Salt Lake City to Lambert-St Louis.
Find which airlines fly direct from Salt Lake City Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Salt Lake City to Lambert-St Louis

Monday

Delta

Delta

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Direct returns

Lambert-St Louis to Salt Lake City

Monday

Delta

Delta

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Reviews of the top 5 airlines serving from Salt Lake City to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Salt Lake City to St. Louis. 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 Salt Lake City to St. Louis? 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 4266 reviews
8.1Boarding
7.5Entertainment
8.0Comfort
7.0Food
8.6Crew
Airline reviews

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

6.0 Goodha, Jan 2026
LAS - HOU
Read more Southwest reviews

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

We got exit row seats both flights. Everything was running on time

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Pretty seamless, just a tad bit late in taking off and landing.

Flight was fine other than there was a gate change that I was not notified of. By chance I happened to check my phone and saw the change, otherwise, we would have missed our connecting flight.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Inexperienced boarding crew allowed too many bags on to a full flight and delayed takeoff causing a missed connection and unplanned overnight stay. There was a hotel at the airport but Delta would not pay for it offering only to shuttle me to an area hotel. Never even offerred so much as an apology by anyone working for Delta.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

The seats weren’t reclining even though it wasn’t as exit seat

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The flight crew where really good. Better then the crew from BNE to SFO

Delayed, toilets did not flush, pilot parked to far away from Gate

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

left on time, reasonable boarding process arrived early luggage came out quickly

I like flying first class, and United has a nice one

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

It was a good trip. Flight Attendants were friendly and responsive.

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

Crew in Columbia was not prepared for landing. It was a bit of a disaster and getting bags took forever.

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

The seats from lax to DFW was so tight that I could not move my legs . No WiFi and had to pay . Not a good selection of entertainment

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

One of the worst travel experiences I've had. Had a flight scheduled with CVG to RSW on VLSWQX this morning departing at 5:30. Two individuals at the gate and one was in training. Not her fault but she didn't have the ability to check people in resulting in at least 15 families that didn't make it on the plane because they weren't checked into the system in time. When arriving at the airport to drop off our prepaid checked bags, the bag drop off agent asked if we could check our bags at the gate because of the long line. We said no problem so arrived at the gate by 5:00. They told those people that had previously paid for checked bags to stand off to the side while they let others that either didn't have a checked bag or their bag was already on the plan through. Realizing the gate workers had an issue, they either called for help or this lady showed up late for work as she didn't arrive until 5:15. The worker who had been there training the other individual and working diligently to make sure all passengers got on board. He even said that at one point all people that are currently in line are fine but asked the person in training to stand outside the ticketing area around 5:15 to notify any late travels that the flight was in boarding process and they arrrived too late. At that point, we're sill standing off to the side with our pre-paid checked bags patiently waiting. When the new lady arrived she couldn't have been more rude. It was an awful seen. Essentially they had asked for those without an assigned seat to board last, those with pre-paid checked bag stand off to the site and any traveling with a larger items that needed to be checked at the gate (such as a stroller), wait on the side. They realized that the flight needed to leave on time so the gate attendant shut the gate. So anyone without a seat assignment, those that had pre-checked bags, and the worst one I saw was a mother with two infant children was in line with use because she was asked to stand to the side because her stroller. When they shut the door to the plan they told her she could no longer get on. Her checked bags were already on the plane with her car keys in them, and the lady told her we couldn't accept anyone else on because the door was shut. She didn't even have a way to get home from the airport. Truely evil behavior. I've flown Frontier enough to know customer service is not a top priority in the company's mission, but this was an all-time low. I'm sending this after an 18 hour drive that our family just completed to Bonita Springs . I felt really bad for the lady being trained and the other individual trying to help, but when the new lady came to the gate she was truly one of the rudest individuals I've ever met. One lady had been there since 4am but because she didn't have an assigned seat they wouldn't let her on the plan.

Everything you need to know for your flight from Salt Lake City to St. Louis

Information on your arrival and departure airports