$130 Cheap Flights from Tucson (TUS) to St. Louis (STL)

View $130 flight on Sun, Jun 8, 2025Opens in a new window

Popular airlines from Tucson International Airport (TUS) to St. Louis Lambert Intl. Airport (STL)

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Find available prices by choosing your travel dates.

Cheap Flights from Tucson to St. Louis (TUS-STL)

Prices were available within the past 7 days and start at $130 for one-way flights and $198 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, May 8 - Sat, May 17
TUS
Tucson
STL
St. Louis
$198 Roundtrip, found 6 hours ago
$198
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, May 8 from Tucson to St. Louis, returning Sat, May 17, priced at $198 found 6 hours ago
Frontier Airlines
Thu, May 8 - Wed, May 14
TUS
Tucson
STL
St. Louis
$218 Roundtrip, found 6 hours ago
$218
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, May 8 from Tucson to St. Louis, returning Wed, May 14, priced at $218 found 6 hours ago
Frontier Airlines
Thu, May 15 - Wed, May 28
TUS
Tucson
STL
St. Louis
$238 Roundtrip, found 4 days ago
$238
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, May 15 from Tucson to St. Louis, returning Wed, May 28, priced at $238 found 4 days ago
Frontier Airlines
Thu, May 8 - Mon, May 26
TUS
Tucson
STL
St. Louis
$260 Roundtrip, found 5 days ago
$260
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Thu, May 8 from Tucson to St. Louis, returning Mon, May 26, priced at $260 found 5 days ago
Southwest Airlines
Sat, Jul 5 - Tue, Jul 8
TUS
Tucson
STL
St. Louis
$267 Roundtrip, found 2 days ago
$267
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Sat, Jul 5 from Tucson to St. Louis, returning Tue, Jul 8, priced at $267 found 2 days ago
American Airlines
Sat, May 24 - Sat, May 31
TUS
Tucson
STL
St. Louis
$267 Roundtrip, found 7 hours ago
$267
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, May 24 from Tucson to St. Louis, returning Sat, May 31, priced at $267 found 7 hours ago
Delta
Wed, Jul 9 - Sat, Jul 26
TUS
Tucson
STL
St. Louis
$267 Roundtrip, found 9 hours ago
$267
Roundtrip
found 9 hours ago
Select Delta flight, departing Wed, Jul 9 from Tucson to St. Louis, returning Sat, Jul 26, priced at $267 found 9 hours ago
Delta
Tue, Jun 17 - Sat, Jun 21
TUS
Tucson
STL
St. Louis
$269 Roundtrip, found 16 hours ago
$269
Roundtrip
found 16 hours ago
Select Delta flight, departing Tue, Jun 17 from Tucson to St. Louis, returning Sat, Jun 21, priced at $269 found 16 hours ago
Frontier Airlines
Sun, May 25 - Sat, May 31
TUS
Tucson
STL
St. Louis
$270 Roundtrip, found 2 days ago
$270
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, May 25 from Tucson to St. Louis, returning Sat, May 31, priced at $270 found 2 days ago
United
Wed, May 21 - Wed, May 28
TUS
Tucson
STL
St. Louis
$292 Roundtrip, found 5 days ago
$292
Roundtrip
found 5 days ago
Select United flight, departing Wed, May 21 from Tucson to St. Louis, returning Wed, May 28, priced at $292 found 5 days ago

Frequently asked questions

How much does a flight from Tucson Intl. Airport (TUS) to Lambert-St. Louis Intl. Airport (STL) cost?
Discover the latest flight deals from TUS to STL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TUS to STL?
The cheapest flights from TUS 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.
What is the cheapest airline that flies from TUS to STL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from TUS to STL. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Tucson Intl. Airport (TUS) to Lambert-St. Louis Intl. Airport (STL)?
There aren’t any daily direct flights from Tucson Intl. Airport (TUS) to Lambert-St. Louis Intl. Airport (STL). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you’ll be soaring above the clouds in no time.
What day of the week has the most flights from TUS to STL?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on a number of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tucson Intl. Airport (TUS) to Lambert-St. Louis Intl. Airport (STL)?
To arrive at Lambert-St. Louis Intl. Airport (STL) without delays, select a flight that takes off from Tucson Intl. Airport (TUS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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.
Is it cheaper to buy a plane ticket from Tucson Intl. Airport (TUS) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until right before your break to book a flight from TUS to STL often results in higher prices. While it’s possible to find some last-minute offers, they’re not always guaranteed. Keep your travel schedule open for a better chance of scoring a bargain.
Is it cheaper to book a TUS to STL flight and hotel package?
You can save money by booking a TUS to STL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one place. Once you’ve selected your preferred accommodations and flights, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Tucson Intl. Airport (TUS) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your TUS to STL flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.
*Available to One Key members.