$135+ Cheap flights from St. Louis to Tucson (STL - TUS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — TUS
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Tucson with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Tucson
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to TucsonExplore the most affordable flight options available from St. Louis to Tucson. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from St. Louis to Tucson. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This American Airlines deal was found by Cheapflights users on 10/23. 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 12/78:43 am -
1 stop8h 17m
Mon 12/144:57 pm -
1 stop5h 37m
Deal found 10/23![American Airlines logo]()
$268
This Southwest deal was found by Cheapflights users on 10/21. 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 11/175:55 am -
1 stop6h 30m
Sat 11/216:00 pm -
1 stop5h 55m
Deal found 10/21![Southwest logo]()
$269
This Southwest deal was found by Cheapflights users on 10/20. 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 11/118:25 am -
2 stops13h 00m
Wed 11/186:45 am -
2 stops7h 35m
Deal found 10/20![Southwest logo]()
$285
This Southwest deal was found by Cheapflights users on 10/22. 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.
Thu 12/35:25 pm -
1 stop6h 00m
Sun 12/66:10 pm -
1 stop5h 10m
Deal found 10/22![Southwest logo]()
$290
This Southwest deal was found by Cheapflights users on 10/22. 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 12/126:35 am -
2 stops8h 25m
Sun 12/204:25 pm -
1 stop8h 20m
Deal found 10/22![Southwest logo]()
$295
This Southwest deal was found by Cheapflights users on 10/21. 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.
Fri 12/114:50 pm -
1 stop7h 20m
Sun 12/133:45 pm -
1 stop7h 45m
Deal found 10/21![Southwest logo]()
$311
This Southwest deal was found by Cheapflights users on 10/20. 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.
Thu 12/242:35 pm -
2 stops6h 50m
Wed 12/304:25 pm -
1 stop8h 20m
Deal found 10/20![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 10/20. 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.
Fri 12/42:35 pm -
2 stops6h 50m
Sun 12/66:10 pm -
1 stop5h 10m
Deal found 10/20![Southwest logo]()
$357
Best flights from St. Louis to TucsonDiscover carefully curated flight deals from St. Louis to Tucson that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from St. Louis to Tucson that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Southwest deal was found by Cheapflights users on 10/23. 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 11/175:55 am -
1 stop6h 30m
Sat 11/216:00 pm -
1 stop5h 55m
Deal found 10/23![Southwest logo]()
$269
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 11/102:55 pm -
1 stop8h 24m
Wed 11/117:30 am -
1 stop8h 20m
Deal found 10/21![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 10/20. 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.
Thu 12/242:35 pm -
2 stops6h 50m
Wed 12/304:25 pm -
1 stop8h 20m
Deal found 10/20![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 10/20. 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.
Thu 2/183:00 pm -
2 stops8h 10m
Sat 2/275:25 am -
1 stop4h 40m
Deal found 10/20![Southwest logo]()
$388
Last-minute flights from St. Louis to TucsonDiscover last-minute flight deals from St. Louis to Tucson. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Tucson. Data last updated October 25, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Fri 11/62:28 pm -
1 stop7h 39m
Mon 11/94:57 pm -
1 stop5h 36m
Deal found 10/23![American Airlines logo]()
$423
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Tue 11/102:55 pm -
1 stop8h 24m
Wed 11/117:30 am -
1 stop8h 20m
Deal found 10/20![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 10/20. 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 11/118:25 am -
2 stops13h 00m
Wed 11/186:45 am -
2 stops7h 35m
Deal found 10/20![Southwest logo]()
$285
This Southwest deal was found by Cheapflights users on 10/21. 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 11/175:55 am -
1 stop6h 30m
Sat 11/216:00 pm -
1 stop5h 55m
Deal found 10/21![Southwest logo]()
$269
This Southwest deal was found by Cheapflights users on 10/22. 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.
Thu 11/198:25 am -
2 stops13h 00m
Thu 11/268:50 am -
2 stops6h 35m
Deal found 10/22![Southwest logo]()
$399
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Fri 11/202:17 pm -
1 stop5h 03m
Fri 11/275:05 pm -
1 stop5h 30m
Deal found 10/23![American Airlines logo]()
$420
This Southwest deal was found by Cheapflights users on 10/19. 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.
Mon 11/301:40 pm -
1 stop12h 05m
Mon 12/711:30 am -
1 stop7h 25m
Deal found 10/19![Southwest logo]()
$311
One-way flights from St. Louis to TucsonSearch for one-way flight options from St. Louis to Tucson. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from St. Louis to Tucson. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Southwest deal was found by Cheapflights users on 10/20. 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 11/145:55 am -
1 stop9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$135
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/148:30 am -
2 stops8h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$140
This Southwest deal was found by Cheapflights users on 10/20. 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.
Sun 11/155:05 am -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$156
This Delta deal was found by Cheapflights users on 10/22. 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.
Sun 12/275:13 pm -
1 stop6h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Delta logo]()
$299
This Southwest deal was found by Cheapflights users on 10/22. 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.
Mon 12/284:50 pm -
1 stop8h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Southwest logo]()
$308
This American Airlines deal was found by Cheapflights users on 10/22. 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 12/295:00 am -
1 stop5h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![American Airlines logo]()
$356
This Southwest deal was found by Cheapflights users on 10/24. 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.
Sun 11/2910:45 pm -
1 stop12h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Southwest logo]()
$364
This Southwest deal was found by Cheapflights users on 10/21. 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 12/269:45 pm -
1 stop11h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Southwest logo]()
$391
This Southwest deal was found by Cheapflights users on 10/20. 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.
Sun 11/110:30 am -
1 stop5h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$469
Find flight deals from St. Louis to Tucson
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Tucson (TUS). 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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $268 (American Airlines) |
One-way from | $135 (Southwest) |
Popular in | February |
Cheapest in | January |
Average price | $455 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Tucson 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 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from St. Louis to Tucson that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Sat 11/14
8:30 am-3:57 pm
2 stops8h 27m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$140
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Sun 11/15
5:05 am-1:20 pm
1 stop9h 15m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$156
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Tue 11/17
5:55 am-11:25 am
1 stop6h 30m
Tucson
Sat 11/21
6:00 pm-12:55 am
1 stop5h 55m
$269
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Sun 12/27
5:13 pm-11:06 pm
1 stop6h 53m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$299
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Mon 12/28
4:50 pm-12:45 am
1 stop8h 55m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$319
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Thu 12/24
2:35 pm-8:25 pm
2 stops6h 50m
Tucson
Wed 12/30
4:25 pm-1:45 am
1 stop8h 20m
$348
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Tue 12/29
5:00 am-9:57 am
1 stop5h 57m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$356
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Sun 11/29
10:45 pm-9:55 am
1 stop12h 10m
Tucson
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$364
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Tue 11/10
2:55 pm-10:19 pm
1 stop8h 24m
Tucson
Wed 11/11
7:30 am-4:50 pm
1 stop8h 20m
$379
St. LouisTucson
STL Lambert-St Louis - TUS Tucson
STLTUS
Lambert-St Louis
Thu 2/18
3:00 pm-10:10 pm
2 stops8h 10m
Tucson
Sat 2/27
5:25 am-11:05 am
1 stop4h 40m
$388
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Tucson
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Tucson in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Tucson flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Tucson flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Tucson flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Tucson flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Tucson flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Tucson
Have a flexible travel schedule? Discover the best time to fly to Tucson from St. Louis with our price prediction graph.
STL-TUS
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 Tucson
How far ahead should I book a flight from St. Louis to Tucson?
To ensure you get the cheapest price possible for a flight from St. Louis to Tucson, you should look to book at least 21 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from St. Louis to Tucson?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Tucson (average of $354). Flying from St. Louis to Tucson in February is currently the most expensive (average of $577). 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.
How much does it cost to fly round-trip from St. Louis to Tucson?
Airfare is below average for this route at the moment.
St. Louis to Tucson flights typically cost between $380 and $617 in December.The cheapest round-trip price found within the last 5 days was $268 on American Airlines (Dec 7-Dec 14).
Reviews of airlines servicing Tucson
Get insights into the airlines that provide service to Tucson. 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 Tucson. Reviews last updated October 25, 2026.
Read through reviews of airlines operating flights from St. Louis to Tucson, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Overall
7.9
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Boarding
8.1
Crew
8.6
Overall
7.9
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Boarding
8.1
Crew
8.6
Overall
7.9
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Boarding
8.1
Crew
8.6
Overall
7.9
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Tucson. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Tucson?
Book flights to Tucson if you plan to visit one of these locationsSierra Vista
Bisbee
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St. Louis and Tucson flights
Browse other St. Louis and Tucson flight options. Last updated on October 25, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Tucson
Explore flights to Tucson departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Top 3 airlines flying from St. Louis to Tucson
Discover the top 3 airlines that operate flights from St. Louis to Tucson. 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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$287 | Average$505 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$297 | Average$408 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$307 | Average$453 | FlexibilityNo cancel fee | On-time63% |