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St. Louis

$90+ Cheap flights from Utah to St. Louis (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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — STL
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Utah to St. Louis

Keep the following information in mind while searching for Utah to St. Louis flight deals. Data was last updated July 30, 2025.

Round-trip from

$205
(FlightHub)

One-way from

$90
(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 Utah to Lambert-St Louis
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One-way flight from Utah 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 Utah to Lambert-St Louis.
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Price to beat on a one-way flight from Utah to Lambert-St Louis.
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Find flight deals from Utah to St. Louis

Cheapest flights from Utah to St. Louis
Explore the most affordable flight options available from Utah to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This FlightHub deal was found by Cheapflights users on 7/30. 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.
Tue 9/161:42 pmSLC - STL
1 stop18h 24mFrontier
Tue 9/237:55 pmSTL - SLC
1 stop17h 51mFrontier
Deal found 7/30$205
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/33:02 pmSLC - STL
2 stops18h 48mSpirit Airlines
Sun 9/712:05 pmSTL - SLC
3 stops27h 24mSpirit Airlines
Deal found 7/27$281
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.
Wed 8/209:10 amSLC - STL
1 stop5h 45mSouthwest
Sat 8/231:50 pmSTL - SLC
2 stops7h 25mSouthwest
Deal found 7/28$302
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Thu 9/183:34 pmSLC - STL
2 stops18h 53mMultiple Airlines
Sun 9/2112:05 pmSTL - SLC
3 stops27h 24mMultiple Airlines
Deal found 7/29$320
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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
Mon 9/223:35 pmSTL - SLC
2 stops28h 36mAlaska Airlines
Deal found 7/29$351
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 Utah 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 30, 2025.
Use the filters below to find and compare flights from Utah to St. Louis that are best for you.

Fly from

Utah

Fly to

St. Louis

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/16

1:42 pm-9:06 am

1 stop18h 24m

Lambert-St Louis

Tue 9/23

7:55 pm-12:46 pm

1 stop17h 51m

$205

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 9/3

3:02 pm-10:50 am

2 stops18h 48m

Lambert-St Louis

Sun 9/7

12:05 pm-2:29 pm

3 stops27h 24m

$281

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 8/20

9:10 am-3:55 pm

1 stop5h 45m

Lambert-St Louis

Sat 8/23

1:50 pm-8:15 pm

2 stops7h 25m

$302

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 9/18

3:34 pm-11:27 am

2 stops18h 53m

Lambert-St Louis

Sun 9/21

12:05 pm-2:29 pm

3 stops27h 24m

$320

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

Mon 9/22

3:35 pm-7:11 pm

2 stops28h 36m

$351

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

Wed 10/1

1:42 pm-9:06 am

1 stop18h 24m

$90

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 9/3

3:02 pm-10:50 am

2 stops18h 48m

$124

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 8/26

9:15 am-5:34 pm

1 stop7h 19m

$148

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 9/2

6:30 am-5:40 pm

2 stops10h 10m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 13 results
1
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Best time to book a flight from Utah to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Utah 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 Utah to St. Louis

What is the cheapest month to book a flight from Utah to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Utah to St. Louis (average of $311). Flying from Utah 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 UT to STL?

Find hourly flight availability from Utah 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 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Utah to St. Louis as you normally would.

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 30, 2025.
Read through reviews of airlines operating flights from Utah to St. Louis, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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
8,048 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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 Utah 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 airport do you fly into for flights to St. Louis from Utah?

    For a flight from Utah to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $90. However, be on the lookout for offers from Spirit Airlines and Alaska Airlines, as they are both options that can get you from Utah to St. Louis for a low price.

  • What are the most reliable airlines from Utah to St. Louis?

    The top 3 most reliable airlines when flying from Utah to St. Louis are Sun Country Air (100%), Southwest (100%) and ITA Airways (100%).

  • What are the cheapest flights from Utah to St. Louis?

    While on average a flight from Utah to St. Louis is generally $404, our data shows the cheapest flight currently is $189. When looking at the most popular route, (Salt Lake City - Lambert-St Louis), you can expect to pay $227 for that flight.

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

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

  • How can I find direct flights from Utah to St. Louis?

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

  • Can I find deals for business class flights from Utah to St. Louis?

    Yes. Cheapflights offers flight deals from Utah 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 Utah to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Utah to St. Louis (average of $311). Flying from Utah 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
Chesterfield
Festus
Farmington

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Top 5 airlines flying from Utah to St. Louis

Discover the top 5 airlines that operate flights from Utah 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$213FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$258Average$420FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$512FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$406FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$332Average$447FlexibilityNo cancel feeOn-time63%

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