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$125+ Cheap flights from Salt Lake City to St. Louis (SLC - 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — STL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Salt Lake City to Lambert-St Louis are usually found in August or February, booked 47 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Salt Lake City to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Salt Lake City (SLC) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$207
(Frontier)

One-way from

$125
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$389

Good round-trip deal

$439 or less

Good one-way deal

$248 or less
From Salt Lake City to Lambert-St Louis
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One-way flight from Salt Lake City to Lambert-St Louis
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Highest demand for flights based on searches. 9% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Salt Lake City to Lambert-St Louis.
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Price to beat on a one-way flight from Salt Lake City to Lambert-St Louis.
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Find flight deals from Salt Lake City to St. Louis

Cheapest flights from Salt Lake City to St. Louis
Explore the most affordable flight options available from Salt Lake City to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/12. 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.
Thu 8/148:42 pmSLC - STL
1 stop11h 29mFrontier
Mon 8/187:29 pmSTL - SLC
1 stop5h 35mFrontier
Deal found 6/12$207
This Mytrip deal was found by Cheapflights users on 6/9. 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 7/912:33 pmSLC - STL
1 stop20h 19mSpirit Airlines
Wed 7/1611:24 amSTL - SLC
2 stops34h 33mSpirit Airlines
Deal found 6/9$282
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/912:33 pmSLC - STL
1 stop20h 19mMultiple Airlines
Wed 7/167:29 pmSTL - SLC
1 stop18h 40mMultiple Airlines
Deal found 6/9$284
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2912:18 amSLC - STL
1 stop7h 01mAmerican Airlines
Wed 8/66:06 amSTL - SLC
1 stop10h 59mAmerican Airlines
Deal found 6/11$320
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/82:36 pmSLC - STL
1 stop5h 09mUnited Airlines
Tue 7/156:33 amSTL - SLC
1 stop6h 07mUnited Airlines
Deal found 6/10$337
This Southwest deal was found by Cheapflights users on 6/10. 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 8/1910:35 amSLC - STL
2 stops6h 15mSouthwest
Wed 8/2010:15 amSTL - SLC
2 stops7h 40mSouthwest
Deal found 6/10$347
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/27:25 pmSLC - STL
1 stop21h 09mAlaska Airlines
Mon 9/86:00 amSTL - SLC
1 stop9h 35mAlaska Airlines
Deal found 6/10$375
This Delta deal was found by Cheapflights users on 6/9. 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 8/18:50 pmSLC - STL
Nonstop2h 48mDelta
Thu 8/77:45 amSTL - SLC
Nonstop3h 10mDelta
Deal found 6/9$439

Cheapflights Fare Finder

Customize your flight search to find flights from Salt Lake City 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 12, 2025.
Use the filters below to find and compare flights from Salt Lake City to St. Louis that are best for you.

Fly from

Salt Lake City

Fly to

St. Louis

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 9/4

9:43 pm-9:07 am

1 stop10h 24m

Lambert-St Louis

Sun 9/14

7:52 pm-12:16 am

1 stop5h 24m

$214

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 7/9

12:33 pm-9:52 am

1 stop20h 19m

Lambert-St Louis

Wed 7/16

11:24 am-8:57 pm

2 stops34h 33m

$282

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 7/9

12:33 pm-9:52 am

1 stop20h 19m

Lambert-St Louis

Wed 7/16

7:29 pm-1:09 pm

1 stop18h 40m

$284

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 7/29

12:18 am-8:19 am

1 stop7h 01m

Lambert-St Louis

Wed 8/6

6:06 am-4:05 pm

1 stop10h 59m

$320

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 7/8

2:36 pm-8:45 pm

1 stop5h 09m

Lambert-St Louis

Tue 7/15

6:33 am-11:40 am

1 stop6h 07m

$337

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 8/19

10:35 am-5:50 pm

2 stops6h 15m

Lambert-St Louis

Wed 8/20

10:15 am-4:55 pm

2 stops7h 40m

$347

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/2

7:25 pm-5:34 pm

1 stop21h 09m

Lambert-St Louis

Mon 9/8

6:00 am-2:35 pm

1 stop9h 35m

$375

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 8/1

2:29 pm-6:16 pm

Nonstop2h 47m

Lambert-St Louis

Sat 8/9

7:45 am-9:55 am

Nonstop3h 10m

$439

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 7/16

12:33 pm-9:52 am

1 stop20h 19m

$125

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 8/20

1:35 pm-2:39 pm

1 stop24h 04m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 17 results
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Best time to book a flight from Salt Lake City to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Salt Lake City with our price prediction graph.
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 Salt Lake City to St. Louis

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

Use this chart to determine the optimal time to book a round-trip flight from Salt Lake City to St. Louis. Price data was last updated on June 9, 2025.

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from Salt Lake City to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Salt Lake City to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Salt Lake City to St. Louis (average of $311). Flying from Salt Lake City to St. Louis in March is currently the most expensive (average of $356). 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 SLC to STL?

Find hourly flight availability from Salt Lake City 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 12, 2025.

One of the essential ways to save on airfare from Salt Lake City to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 15% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Salt Lake City to St. Louis. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their Salt Lake City to St. Louis flight should consider departing on Sunday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Salt Lake City to St. Louis, such as Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Salt Lake City to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Salt Lake City to St. Louis?

    To fly from Salt Lake City to St. Louis, you need to book a flight from Salt Lake City (SLC) to Lambert-St Louis (STL). Nonstop flights to Lambert-St Louis from Salt Lake City take 2h 47m on average. When it comes time to book airfare, you have a few options: there are 3 outbound flights from Salt Lake City to Lambert-St Louis offered by 5 different airlines.

  • What are the cheapest airlines flying from Salt Lake City to St. Louis round-trip?

    According to our current data, Frontier ($207), Spirit Airlines ($282), and American Airlines ($320) offers the cheapest pricing from Salt Lake City to St. Louis. Users have found that Frontier is 48% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Salt Lake City to St. Louis one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $125. Users have also found prices from $155 and $157 on Alaska Airlines and American Airlines, respectively.

  • What are the most reliable airlines from Salt Lake City to St. Louis?

    Consider Air France (86%), Delta (86%) or WestJet (86%) when booking your flight. These represent the most reliable airlines when flying from Salt Lake City to St. Louis.

  • What are the cheapest flights from Salt Lake City to St. Louis?

    The cheapest flight price from Salt Lake City to St. Louis is $218. On average you can expect to pay $378. The most popular route, (Salt Lake City - Lambert-St Louis), can usually be booked for $269.

  • Can I find deals for flights from Salt Lake City to St. Louis that include hotel bookings?

    Yes. In addition to deals on Salt Lake City to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Salt Lake City to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Salt Lake City to St. Louis.

  • Can I find deals for business class flights from Salt Lake City to St. Louis?

    Yes. Cheapflights offers flight deals from Salt Lake City to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Salt Lake City to St. Louis (average of $311). Flying from Salt Lake City to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

Traveling to a place near Salt Lake City?

Book flights to Salt Lake City if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
Farmington

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Top 5 airlines flying from Salt Lake City to St. Louis

Discover the top 5 airlines that operate flights from Salt Lake City 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$212FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$276Average$406FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$298Average$429FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$350Average$438FlexibilityNo cancel feeOn-time63%
DeltaCheapest$359Average$469FlexibilityNo cancel feeOn-timeN/A

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