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$70+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — STL
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
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 73 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 July 28, 2025.

Round-trip from

$181
(eDestinos)

One-way from

$70
(Trip.com)

Popular in

January

Cheapest in

August

Average price

$390

Good round-trip deal

$439 or less

Good one-way deal

$258 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. 4% potential increase in price ($18 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 July 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 July 28, 2025.

This eDestinos deal was found by Cheapflights users on 7/26. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/258:22 amSLC - STL
1 stop23h 49mFrontier
Mon 9/17:54 pmSTL - SLC
1 stop27h 30mFrontier
Deal found 7/26$181
This Mytrip deal was found by Cheapflights users on 7/25. 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 8/203:02 pmSLC - STL
2 stops21h 30mSpirit Airlines
Mon 8/252:30 pmSTL - SLC
3 stops24h 27mSpirit Airlines
Deal found 7/25$264
This Southwest deal was found by Cheapflights users on 7/28. 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 10/217:50 amSLC - STL
1 stop4h 30mSouthwest
Tue 10/2810:25 amSTL - SLC
2 stops8h 05mSouthwest
Deal found 7/28$302
This Mytrip deal was found by Cheapflights users on 7/26. 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.
Sat 10/183:34 pmSLC - STL
2 stops17h 06mMultiple Airlines
Mon 10/209:50 amSTL - SLC
3 stops29h 39mMultiple Airlines
Deal found 7/26$342
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 9/167:00 amSLC - STL
1 stop9h 34mAlaska Airlines
Tue 9/233:35 pmSTL - SLC
2 stops19h 26mAlaska Airlines
Deal found 7/27$351
This American Airlines deal was found by Cheapflights users on 7/26. 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 9/168:40 amSLC - STL
2 stops8h 42mAmerican Airlines
Tue 9/237:23 amSTL - SLC
1 stop10h 14mAmerican Airlines
Deal found 7/26$393
This Delta deal was found by Cheapflights users on 7/28. 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 8/298:50 pmSLC - STL
Nonstop2h 48mDelta
Sun 8/315:30 pmSTL - SLC
Nonstop3h 10mDelta
Deal found 7/28$399

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 July 28, 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

Mon 8/25

8:22 am-9:11 am

1 stop23h 49m

Lambert-St Louis

Mon 9/1

7:54 pm-10:24 pm

1 stop27h 30m

$181

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 8/20

3:02 pm-1:32 pm

2 stops21h 30m

Lambert-St Louis

Mon 8/25

2:30 pm-1:57 pm

3 stops24h 27m

$264

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 10/21

7:50 am-1:20 pm

1 stop4h 30m

Lambert-St Louis

Tue 10/28

10:25 am-5:30 pm

2 stops8h 05m

$302

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sat 10/18

3:34 pm-9:40 am

2 stops17h 06m

Lambert-St Louis

Mon 10/20

9:50 am-2:29 pm

3 stops29h 39m

$342

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/16

7:00 am-5:34 pm

1 stop9h 34m

Lambert-St Louis

Tue 9/23

3:35 pm-10:01 am

2 stops19h 26m

$351

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/16

8:40 am-6:22 pm

2 stops8h 42m

Lambert-St Louis

Tue 9/23

7:23 am-4:37 pm

1 stop10h 14m

$393

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 8/29

8:50 pm-12:38 am

Nonstop2h 48m

Lambert-St Louis

Sun 8/31

5:30 pm-7:40 pm

Nonstop3h 10m

$399

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 10/13

8:15 pm-9:07 am

1 stop11h 52m

$70

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 8/20

3:02 pm-1:32 pm

2 stops21h 30m

$119

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 9/24

7:00 am-5:34 pm

1 stop9h 34m

$148

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 13 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 July 25, 2025.

Booking 73 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 July 28, 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 July 27, 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.

Weekly flight availability from Salt Lake City to St. Louis

Explore weekly flight availability from Salt Lake City to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2025.

The most flights from SLC to STL are scheduled on a Friday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

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 July 28, 2025.
Read through reviews of airlines operating flights from Salt Lake City to St. Louis, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Spirit Airlines
6.3
Okay
8,040 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 46m on average. When it comes time to book airfare, you have a few options: there are 6 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 ($181), Spirit Airlines ($264), and Southwest ($310) offers the cheapest pricing from Salt Lake City to St. Louis. Users have found that Frontier is 55% 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 Frontier. According to our data, you can fly for as low as $70. Users have also found prices from $119 and $148 on Spirit Airlines and Alaska Airlines, respectively.

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

    Consider Sun Country Air (100%), Southwest (100%) or ITA Airways (100%) 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 $189. On average you can expect to pay $404. The most popular route, (Salt Lake City - Lambert-St Louis), can usually be booked for $227.

  • 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$213FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$298Average$406FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$316Average$407FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$332Average$447FlexibilityNo cancel feeOn-time63%
DeltaCheapest$359Average$465FlexibilityNo cancel feeOn-timeN/A

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