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$82+ Cheap flights from St. Louis to Salt Lake City (STL - SLC)

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SLC
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Salt Lake City are usually found in April or September, booked 82 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from St. Louis to Salt Lake City

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Salt Lake City (SLC). 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

$270
(FlightHub)

One-way from

$82
(FlightHub)

Popular in

December

Cheapest in

April

Average price

$418

Good round-trip deal

$294 or less

Good one-way deal

$203 or less
From Lambert-St Louis to Salt Lake City
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One-way flight from Lambert-St Louis to Salt Lake City
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Highest demand for flights based on searches. 3% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 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 Lambert-St Louis to Salt Lake City.
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Price to beat on a one-way flight from Lambert-St Louis to Salt Lake City.
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Find flight deals from St. Louis to Salt Lake City

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

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 6/257:29 pmSTL - SLC
1 stop14h 05mFrontier
Sun 6/298:43 pmSLC - STL
1 stop11h 29mFrontier
Deal found 6/9$270
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:47 amSTL - SLC
1 stop25h 22mSpirit Airlines
Fri 7/182:43 pmSLC - STL
1 stop17h 57mSpirit Airlines
Deal found 6/12$289
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.
Mon 8/410:08 amSTL - SLC
1 stop10h 14mAmerican Airlines
Mon 8/116:55 amSLC - STL
1 stop12h 23mAmerican Airlines
Deal found 6/11$306
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:47 amSTL - SLC
1 stop25h 22mMultiple Airlines
Thu 7/179:52 pmSLC - STL
3 stops13h 18mMultiple Airlines
Deal found 6/12$346
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.
Sat 8/163:24 pmSTL - SLC
1 stop8h 54mAlaska Airlines
Thu 9/113:29 pmSLC - STL
1 stop7h 30mAlaska Airlines
Deal found 6/10$353
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/301:39 pmSTL - SLC
1 stop4h 40mUnited Airlines
Sat 9/67:00 amSLC - STL
2 stops7h 44mUnited Airlines
Deal found 6/11$358
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/192:20 pmSTL - SLC
2 stops8h 10mSouthwest
Sat 7/265:15 amSLC - STL
1 stop4h 10mSouthwest
Deal found 6/11$432
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/247:15 pmSTL - SLC
Nonstop3h 06mDelta
Sun 7/278:50 pmSLC - STL
Nonstop2h 48mDelta
Deal found 6/10$439

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Salt Lake City 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 St. Louis to Salt Lake City that are best for you.

Fly from

St. Louis

Fly to

Salt Lake City

Route

Depart

Return

Price

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Wed 6/25

7:29 pm-8:34 am

1 stop14h 05m

Salt Lake City

Sun 6/29

8:43 pm-9:12 am

1 stop11h 29m

$270

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 7/10

10:47 am-11:09 am

1 stop25h 22m

Salt Lake City

Fri 7/18

2:43 pm-9:40 am

1 stop17h 57m

$289

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 8/4

10:08 am-7:22 pm

1 stop10h 14m

Salt Lake City

Mon 8/11

6:55 am-8:18 pm

1 stop12h 23m

$306

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 7/10

10:47 am-11:09 am

1 stop25h 22m

Salt Lake City

Thu 7/17

9:52 pm-12:10 pm

3 stops13h 18m

$346

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 8/16

3:24 pm-11:18 pm

1 stop8h 54m

Salt Lake City

Thu 9/11

3:29 pm-11:59 pm

1 stop7h 30m

$353

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 8/30

1:39 pm-5:19 pm

1 stop4h 40m

Salt Lake City

Sat 9/6

7:00 am-3:44 pm

2 stops7h 44m

$358

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sat 7/19

2:20 pm-9:30 pm

2 stops8h 10m

Salt Lake City

Sat 7/26

5:15 am-10:25 am

1 stop4h 10m

$432

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 7/24

7:15 pm-9:21 pm

Nonstop3h 06m

Salt Lake City

Sun 7/27

8:50 pm-12:38 am

Nonstop2h 48m

$439

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sun 10/5

7:52 pm-7:32 am

1 stop12h 40m

$82

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 9/12

8:44 am-2:10 pm

2 stops30h 26m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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

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

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

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

The price you pay for your flight from St. Louis to Salt Lake City may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from St. Louis to Salt Lake City (average of $277). Flying from St. Louis to Salt Lake City in March is currently the most expensive (average of $417). 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 STL to SLC?

Find hourly flight availability from St. Louis to Salt Lake City. 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.

When flying from St. Louis to Salt Lake City, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 24% versus a flight in the morning.

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

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

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

Weekly flight availability from St. Louis to Salt Lake City

Explore weekly flight availability from St. Louis to Salt Lake City. 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 June 12, 2025.

The most flights from STL to SLC are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Salt Lake City by month

Plan your trip to Salt Lake City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Salt Lake City ranges from 0.6 - 2.0 inches per month. April is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Salt Lake City when rainfall is around 0.6 in.

Temperature in Salt Lake City by month

Plan your trip to Salt Lake City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Salt Lake City, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Salt Lake City

Get insights into the airlines that provide service to Salt Lake City. 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 Salt Lake City. Reviews last updated June 12, 2025.
To help decide which airline to fly from St. Louis to Salt Lake City, see what other customers have to say about Alaska Airlines, Southwest and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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 St. Louis to Salt Lake City. 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 St. Louis to Salt Lake City?

    To fly from St. Louis to Salt Lake City, you need to book a flight from Lambert-St Louis (STL) to Salt Lake City (SLC). Nonstop flights to Salt Lake City from Lambert-St Louis take 3h 06m on average. When it comes time to book airfare, you have a few options: there are 4 outbound flights from Lambert-St Louis to Salt Lake City offered by 5 different airlines.

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

    Cheapflights users have booked flights from St. Louis to Salt Lake City round-trip from $270. Other airlines that can offer you cheap pricing are Spirit Airlines, from $289, and American Airlines, from $306. Frontier is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $82. Users have also found prices from $117 and $149 on Spirit Airlines and Alaska Airlines, respectively.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from St. Louis to Salt Lake City on time: Air France (100%), Virgin Atlantic (100%), Delta (88%).

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

    On average you can expect to pay $907 for a flight from St. Louis to Salt Lake City. The cheapest flight overall is $142 while the most popular route, (Lambert-St Louis - Salt Lake City) is currently priced at $252.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Salt Lake City 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 St. Louis to Salt Lake City?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Salt Lake City (average of $277). Flying from St. Louis to Salt Lake City in March is currently the most expensive (average of $417). 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
Bountiful
Midvale
West Valley City
Lehi
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Evanston
Draper
South Jordan
Sandy

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

Discover the top 5 airlines that operate flights from St. Louis to Salt Lake City. 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$107Average$196FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$256Average$468FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$284Average$371FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$358Average$437FlexibilityNo cancel feeOn-time63%
DeltaCheapest$359Average$471FlexibilityNo cancel feeOn-timeN/A

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