SLC - STL

$106 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 7/15. 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

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
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Flights 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

Thu, Jul 3 - Sat, Jul 5
Frontier Logo
7:44 pm - 1:42 pmSLC-STL
16h 58m1 stop
Frontier Logo
7:29 pm - 8:32 amSTL-SLC
14h 03m1 stop
$210Frontier
Find Deal
Wed, Aug 6 - Wed, Aug 6
Southwest Logo
6:00 am - 11:30 amSLC-STL
4h 30m1 stop
Southwest Logo
4:35 pm - 10:55 pmSTL-SLC
7h 20m1 stop
$277Southwest
Find Deal
Mon, Sep 15 - Sat, Sep 20
Southwest Logo
5:20 pm - 11:55 pmSLC-STL
5h 35m1 stop
Southwest Logo
10:30 am - 9:30 pmSTL-SLC
12h 00m2 stops
$297Southwest
Find Deal
Wed, Sep 10 - Mon, Sep 15
American Airlines Logo
8:40 am - 6:27 pmSLC-STL
8h 47m2 stops
American Airlines Logo
7:10 am - 3:21 pmSTL-SLC
9h 11m1 stop
$306American Airlines
Find Deal
Mon, Sep 1 - Sun, Sep 7
Frontier Logo
9:59 pm - 9:11 amSLC-STL
10h 12m1 stop
Frontier Logo
11:32 am - 5:33 pmSTL-SLC
7h 01m1 stop
$326Frontier
Find Deal
Mon, Jul 14 - Tue, Jul 22
American Airlines Logo
12:18 am - 8:14 amSLC-STL
6h 56m1 stop
American Airlines Logo
5:30 am - 11:20 amSTL-SLC
6h 50m1 stop
$337American Airlines
Find Deal
Wed, Aug 20 - Sat, Aug 23
United Airlines Logo
7:15 am - 4:53 pmSLC-STL
8h 38m1 stop
United Airlines Logo
6:35 am - 3:30 pmSTL-SLC
9h 55m2 stops
$371United Airlines
Find Deal
Tue, Aug 12 - Sat, Aug 16
United Airlines Logo
5:30 am - 2:37 pmSLC-STL
8h 07m2 stops
United Airlines Logo
5:00 am - 1:17 pmSTL-SLC
9h 17m2 stops
$416United Airlines
Find Deal
Fri, Jul 18 - Tue, Jul 22
Delta Logo
8:50 pm - 12:38 amSLC-STL
2h 48mnonstop
Delta Logo
2:23 pm - 4:34 pmSTL-SLC
3h 11mnonstop
$449Delta
Find Deal
Mon, Sep 15 - Fri, Sep 26
Delta Logo
8:45 pm - 12:37 amSLC-STL
2h 52mnonstop
Delta Logo
3:30 pm - 8:07 pmSTL-SLC
5h 37m1 stop
$459Delta
Find Deal
Expert advice

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

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
SLC

For a quicker security check at SLC, use the Level 1 checkpoint, often less crowded than the main Level 2 area.

Read more about SLCby Harriet Baskas
STL

Use MetroLink for easy access from STL to downtown St. Louis, avoiding rush hour traffic.

Read more about STLby Yulia Denisyuk
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia Denisyuk

Yulia Denisyuk

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on SLC

Harriet Baskas

Harriet Baskas

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.

Read more
Useful Info

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 August, where tickets cost $341 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $464 and $452 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$106
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 5% lower on average.
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 $106 for a one-way ticket and $210 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 A319 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?

    SkyTeam is the only airline alliance operating flights between Salt Lake City and St. Louis.

  • 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, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from Salt Lake City to St. Louis are Delta and Southwest. With an average price for the route of $468 and an overall rating of 8.0, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $436 and an overall rating of 8.0.

  • 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 $248 or less one-way and $468 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, KLM, Korean Air

Delta, KLM, +1 more

Tuesday

Delta, KLM, Korean Air

Delta, KLM, +1 more

Wednesday

Delta, KLM, Korean Air

Delta, KLM, +1 more

Thursday

Delta, KLM, Korean Air

Delta, KLM, +1 more

Friday

Delta, KLM, Korean Air

Delta, KLM, +1 more

Saturday

Delta, KLM, Korean Air, +1 more

Delta, KLM, +2 more

Sunday

Delta, KLM, Korean Air

Delta, KLM, +1 more

See more direct flights

Direct returns

Lambert-St Louis to Salt Lake City

Monday

Delta, Korean Air

Delta, Korean Air

Tuesday

Delta, KLM, Korean Air

Delta, KLM, +1 more

Wednesday

Delta, Korean Air

Delta, Korean Air

Thursday

Delta, KLM, Korean Air

Delta, KLM, +1 more

Friday

Delta, KLM, Korean Air

Delta, KLM, +1 more

Saturday

Delta, KLM, Korean Air, +1 more

Delta, KLM, +2 more

Sunday

Delta, Korean Air, KLM

Delta, Korean Air, +1 more

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 4278 reviews
8.6Crew
7.6Entertainment
7.1Food
8.2Boarding
8.0Comfort
Airline reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

10.0 ExcellentMichael, Jun 2025SMF - SEA
Read more Southwest reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Cramped seats. FAA should make airlines have more legroom, for even short people complain

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

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.

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. On the flight no drinks were offered only for purchase meals.

Since you have to pay for overhead bags then they shouldn't be running out of space and asking individuals who paid to remove stuff from the overhead

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

Book with frontier airlines with the mentality that they'll cancel your flight, kick you off and lose your luggage. Anything besides that is a win. Compare prices with other airlines (to include luggage) and if frontier is still worth it, book it but know all of their policies.

You get what you pay for nothing essentially but a hard uncomfortable seat that doesn’t recline and kids screaming all around you and chaotic boarding and limited check bag weight allowance when compared to other airlines

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Although an hour and a half early was told by staff at check in they had overbooked and could not check us in for the flight.

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

Information on your arrival and departure airports

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