$100 Cheap Flights from Salt Lake City (SLC) to St. Louis (STL)

View $100 flight on Tue, Apr 29, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Salt Lake City to St. Louis (SLC-STL)

Prices were available within the past 7 days and start at $100 for one-way flights and $188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 13 - Sat, May 24
SLC
Salt Lake City
STL
St. Louis
$188 Roundtrip, found 6 hours ago
$188
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Tue, May 13 from Salt Lake City to St. Louis, returning Sat, May 24, priced at $188 found 6 hours ago
Frontier Airlines
Fri, May 16 - Sat, May 24
SLC
Salt Lake City
STL
St. Louis
$198 Roundtrip, found 6 hours ago
$198
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Fri, May 16 from Salt Lake City to St. Louis, returning Sat, May 24, priced at $198 found 6 hours ago
Frontier Airlines
Tue, May 13 - Wed, May 21
SLC
Salt Lake City
STL
St. Louis
$208 Roundtrip, found 6 hours ago
$208
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Tue, May 13 from Salt Lake City to St. Louis, returning Wed, May 21, priced at $208 found 6 hours ago
Frontier Airlines
Thu, May 8 - Sat, May 10
SLC
Salt Lake City
STL
St. Louis
$218 Roundtrip, found 3 hours ago
$218
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Thu, May 8 from Salt Lake City to St. Louis, returning Sat, May 10, priced at $218 found 3 hours ago
Frontier Airlines
Tue, Jun 10 - Wed, Jun 11
SLC
Salt Lake City
STL
St. Louis
$228 Roundtrip, found 5 hours ago
$228
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, Jun 10 from Salt Lake City to St. Louis, returning Wed, Jun 11, priced at $228 found 5 hours ago
Frontier Airlines
Tue, May 13 - Fri, May 23
SLC
Salt Lake City
STL
St. Louis
$230 Roundtrip, found 6 hours ago
$230
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Tue, May 13 from Salt Lake City to St. Louis, returning Fri, May 23, priced at $230 found 6 hours ago
Spirit Airlines
Mon, Jun 16 - Mon, Jun 23
SLC
Salt Lake City
STL
St. Louis
$252 Roundtrip, found 21 hours ago
$252
Roundtrip
found 21 hours ago
Select Spirit Airlines flight, departing Mon, Jun 16 from Salt Lake City to St. Louis, returning Mon, Jun 23, priced at $252 found 21 hours ago
Southwest Airlines
Wed, Jun 4 - Sat, Jun 7
SLC
Salt Lake City
STL
St. Louis
$261 Roundtrip, found 22 hours ago
$261
Roundtrip
found 22 hours ago
Select Southwest Airlines flight, departing Wed, Jun 4 from Salt Lake City to St. Louis, returning Sat, Jun 7, priced at $261 found 22 hours ago
United
Sat, May 24 - Sat, Jun 7
SLC
Salt Lake City
STL
St. Louis
$264 Roundtrip, found 1 day ago
$264
Roundtrip
found 1 day ago
Select United flight, departing Sat, May 24 from Salt Lake City to St. Louis, returning Sat, Jun 7, priced at $264 found 1 day ago
American Airlines
Sat, May 24 - Sun, May 25
SLC
Salt Lake City
STL
St. Louis
$313 Roundtrip, found 2 hours ago
$313
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, May 24 from Salt Lake City to St. Louis, returning Sun, May 25, priced at $313 found 2 hours ago

Frequently asked questions

How much does a flight from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag cheap return tickets starting from $359 from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Delta flight leaving SLC on May 20 2025 and touching down at STL. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from SLC to STL?
The cheapest flights from SLC to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL)?
Board a nonstop flight with Delta Air Lines and fly straight from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL).
What is the cheapest airline that flies from SLC to STL?
With fares starting at $239 for a one-way journey from SLC to STL, Delta is currently the cheapest airline flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SLC on July 19 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL)?
With an average of 2 nonstop flights departing from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL) each day, you’ll be up in the air in no time.
What are the most popular departure times for flights from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL)?
The 5 PM departures from SLC to STL are typically the busiest. These flights can come with a higher price due to their popularity. If you want to save money, choose a less crowded time to fly.
What day of the week has the most flights from SLC to STL?
Depart on a Friday if you’re searching for the best selection of flights from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL).
What is the earliest flight from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL)?
Salt Lake City Intl. Airport (SLC)’s first flight to Lambert-St. Louis Intl. Airport (STL) leaves at approximately 9:25AM UTC-7. With a travel duration of 2h 53m, you’ll touch down at around 1:18PM UTC-6.
How long does it take to fly from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL)?
It takes approximately 2 hours and 49 minutes to travel the 1,150 mi from SLC to STL.
What airline has the least delays from SLC to STL?
Southwest Airlines has the best performance for on-time direct flights from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL), with an on-time rating of 100%. Use the Expedia App to check your flight status before you take off and get immediate updates about any changes.
What is the best time to fly from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL)?
Opt for a flight from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for St. Louis from Salt Lake City Intl. Airport (SLC)?
Check out your flight options from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL). This is the only St. Louis airport you can land at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until just before your trip to book a flight from SLC to STL generally means paying more. While you may find some last-minute discounts, there’s no guarantee. Keep your travel schedule open to boost your chances of scoring a bargain.
Is it cheaper to book a SLC to STL flight and hotel package?
Compared with arranging hotels and flights separately, booking a SLC to STL flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the hassle out of planning your trip. Just pick your flights and select from our wide range of stays, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Salt Lake City Intl. Airport (SLC) to Lambert-St. Louis Intl. Airport (STL)?
Typically, you’re able to reschedule or cancel your SLC to STL flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline’s policies and fees on flight changes, or if you’d like more details, go to our Customer Service portal.
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