$183+ Cheap flights from Tucson to St. Louis (TUS - 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — STL
Jul 4 — Jul 111
Round-trip
1 adult, Economy
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Find cheap flights from Tucson to St. Louis 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 Tucson to St. Louis
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Best
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Cheapest flights from Tucson to St. LouisExplore the most affordable flight options available from Tucson to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 4, 2026.
Explore the most affordable flight options available from Tucson to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 4, 2026.
This Southwest deal was found by Cheapflights users on 6/1. 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 7/144:55 pm
TUS
- STL
1 stop4h 40m
Southwest
Wed 7/225:35 am
STL
- TUS
1 stop5h 35m
Southwest
Deal found 6/1![Southwest logo]()
$367
This American Airlines deal was found by Cheapflights users on 6/4. 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 6/303:54 pm
TUS
- STL
1 stop6h 05m
American Airlines
Sat 7/49:44 am
STL
- TUS
1 stop7h 17m
American Airlines
Deal found 6/4![American Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 5/31. 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.
Wed 7/13:54 pm
TUS
- STL
1 stop6h 05m
American Airlines
Tue 7/78:01 am
STL
- TUS
1 stop7h 08m
American Airlines
Deal found 5/31![American Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 6/1. 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 8/181:29 pm
TUS
- STL
1 stop5h 17m
United Airlines
Wed 8/191:36 pm
STL
- TUS
1 stop5h 27m
United Airlines
Deal found 6/1![United Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 7/1511:37 am
TUS
- STL
1 stop6h 46m
American Airlines
Sun 7/195:32 am
STL
- TUS
1 stop5h 06m
American Airlines
Deal found 6/4![American Airlines logo]()
$407
This American Airlines deal was found by Cheapflights users on 6/2. 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.
Thu 9/33:58 pm
TUS
- STL
1 stop5h 44m
American Airlines
Mon 9/75:42 am
STL
- TUS
1 stop5h 02m
American Airlines
Deal found 6/2![American Airlines logo]()
$410
Best flights from Tucson to St. LouisDiscover carefully curated flight deals from Tucson to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 4, 2026.
Discover carefully curated flight deals from Tucson to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 4, 2026.
This Southwest deal was found by Cheapflights users on 6/2. 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 10/105:00 pm
TUS
- STL
1 stop4h 40m
Southwest
Sun 10/186:25 am
STL
- TUS
1 stop5h 10m
Southwest
Deal found 6/2![Southwest logo]()
$430
This Delta deal was found by Cheapflights users on 5/31. 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.
Mon 6/291:29 pm
TUS
- STL
1 stop6h 49m
Delta
Sat 7/46:00 am
STL
- TUS
1 stop8h 19m
Delta
Deal found 5/31![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 6/3. 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 8/181:29 pm
TUS
- STL
1 stop5h 17m
United Airlines
Wed 8/194:40 pm
STL
- TUS
1 stop5h 50m
United Airlines
Deal found 6/3![United Airlines logo]()
$457
This Southwest deal was found by Cheapflights users on 6/3. 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 8/73:45 pm
TUS
- STL
1 stop7h 00m
Southwest
Sun 8/166:45 am
STL
- TUS
1 stop5h 00m
Southwest
Deal found 6/3![Southwest logo]()
$447
This Delta deal was found by Cheapflights users on 6/1. 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 11/192:30 pm
TUS
- STL
1 stop7h 48m
Delta
Sun 11/226:30 am
STL
- TUS
1 stop7h 24m
Delta
Deal found 6/1![Delta logo]()
$457
This Southwest deal was found by Cheapflights users on 6/1. 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 7/15:40 am
TUS
- STL
2 stops7h 30m
Southwest
Tue 7/76:55 pm
STL
- TUS
1 stop5h 40m
Southwest
Deal found 6/1![Southwest logo]()
$452
This Southwest deal was found by Cheapflights users on 5/31. 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 6/292:25 pm
TUS
- STL
2 stops7h 30m
Southwest
Sat 7/411:10 am
STL
- TUS
2 stops9h 20m
Southwest
Deal found 5/31![Southwest logo]()
$467
This Southwest deal was found by Cheapflights users on 5/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/102:25 pm
TUS
- STL
2 stops8h 20m
Southwest
Sun 7/127:35 pm
STL
- TUS
1 stop6h 20m
Southwest
Deal found 5/30![Southwest logo]()
$481
This Southwest deal was found by Cheapflights users on 6/1. 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 6/286:30 am
TUS
- STL
2 stops6h 00m
Southwest
Fri 7/36:40 pm
STL
- TUS
2 stops7h 00m
Southwest
Deal found 6/1![Southwest logo]()
$507
Last-minute flights from Tucson to St. LouisDiscover last-minute flight deals from Tucson to St. Louis. Data last updated June 4, 2026 and is based on user searches.
Discover last-minute flight deals from Tucson to St. Louis. Data last updated June 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/4. 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 6/303:54 pm
TUS
- STL
1 stop6h 05m
American Airlines
Sat 7/49:44 am
STL
- TUS
1 stop7h 17m
American Airlines
Deal found 6/4![American Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 5/31. 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.
Wed 7/13:54 pm
TUS
- STL
1 stop6h 05m
American Airlines
Tue 7/78:01 am
STL
- TUS
1 stop7h 08m
American Airlines
Deal found 5/31![American Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 6/3. 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.
Wed 7/18:38 am
TUS
- STL
1 stop6h 55m
American Airlines
Wed 7/88:01 am
STL
- TUS
1 stop7h 07m
American Airlines
Deal found 6/3![American Airlines logo]()
$420
This American Airlines deal was found by Cheapflights users on 5/31. 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.
Wed 7/13:54 pm
TUS
- STL
1 stop6h 05m
American Airlines
Sun 7/55:32 am
STL
- TUS
1 stop5h 06m
American Airlines
Deal found 5/31![American Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 6/1. 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 7/144:55 pm
TUS
- STL
1 stop4h 40m
Southwest
Wed 7/225:35 am
STL
- TUS
1 stop5h 35m
Southwest
Deal found 6/1![Southwest logo]()
$367
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 7/1511:37 am
TUS
- STL
1 stop6h 46m
American Airlines
Sun 7/195:32 am
STL
- TUS
1 stop5h 06m
American Airlines
Deal found 6/4![American Airlines logo]()
$407
One-way flights from Tucson to St. LouisSearch for one-way flight options from Tucson to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
Search for one-way flight options from Tucson to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
This American Airlines deal was found by Cheapflights users on 6/2. 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.
Wed 6/243:54 pm
TUS
- STL
1 stop6h 05m
American Airlines
Deal found 6/2![American Airlines logo]()
$183
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 7/1511:37 am
TUS
- STL
1 stop6h 46m
American Airlines
Deal found 6/4![American Airlines logo]()
$184
This Southwest deal was found by Cheapflights users on 6/4. 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 7/155:15 am
TUS
- STL
2 stops7h 55m
Southwest
Deal found 6/4![Southwest logo]()
$189
This American Airlines deal was found by Cheapflights users on 6/2. 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.
Sun 7/192:59 pm
TUS
- STL
1 stop6h 59m
American Airlines
Deal found 6/2![American Airlines logo]()
$224
This Southwest deal was found by Cheapflights users on 6/2. 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 6/245:40 am
TUS
- STL
2 stops7h 30m
Southwest
Deal found 6/2![Southwest logo]()
$249
This Southwest deal was found by Cheapflights users on 6/2. 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 7/197:10 am
TUS
- STL
2 stops7h 45m
Southwest
Deal found 6/2![Southwest logo]()
$279
This Delta deal was found by Cheapflights users on 5/31. 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.
Tue 6/94:30 pm
TUS
- STL
1 stop6h 13m
Delta
Deal found 5/31![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 6/3. 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 6/91:30 pm
TUS
- STL
1 stop5h 40m
United Airlines
Deal found 6/3![United Airlines logo]()
$519
This American Airlines deal was found by Cheapflights users on 6/3. 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 6/98:38 am
TUS
- STL
2 stops10h 59m
American Airlines
Deal found 6/3![American Airlines logo]()
$524
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/242:29 pm
TUS
- STL
3 stops41h 03m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$563
Find flight deals from Tucson to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Tucson (TUS) to St. Louis (STL). 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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $367 (Southwest) |
One-way from | $183 (American Airlines) |
Popular in | April |
Cheapest in | February |
Average price | $408 |
Cheapflights Fare Finder
Customize your flight search to find flights from Tucson 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 June 4, 2026.
Use the filters below to find and compare flights from Tucson to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Sat 10/10
5:00 pm-11:40 pm
1 stop4h 40m
Lambert-St Louis
Sun 10/18
6:25 am-9:35 am
1 stop5h 10m
$430
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Fri 8/7
3:45 pm-12:45 am
1 stop7h 00m
Lambert-St Louis
Sun 8/16
6:45 am-9:45 am
1 stop5h 00m
$447
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Wed 7/1
5:40 am-3:10 pm
2 stops7h 30m
Lambert-St Louis
Tue 7/7
6:55 pm-10:35 pm
1 stop5h 40m
$452
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Mon 6/29
1:29 pm-10:18 pm
1 stop6h 49m
Lambert-St Louis
Sat 7/4
6:00 am-12:19 pm
1 stop8h 19m
$457
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Tue 8/18
1:29 pm-8:46 pm
1 stop5h 17m
Lambert-St Louis
Wed 8/19
4:40 pm-8:30 pm
1 stop5h 50m
$457
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Thu 11/19
2:30 pm-11:18 pm
1 stop7h 48m
Lambert-St Louis
Sun 11/22
6:30 am-12:54 pm
1 stop7h 24m
$457
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Mon 6/29
2:25 pm-11:55 pm
2 stops7h 30m
Lambert-St Louis
Sat 7/4
11:10 am-6:30 pm
2 stops9h 20m
$467
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Fri 7/10
2:25 pm-12:45 am
2 stops8h 20m
Lambert-St Louis
Sun 7/12
7:35 pm-11:55 pm
1 stop6h 20m
$481
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Sun 6/28
6:30 am-2:30 pm
2 stops6h 00m
Lambert-St Louis
Fri 7/3
6:40 pm-11:40 pm
2 stops7h 00m
$507
Cheapest one-way
TucsonSt. Louis
TUS - STL
TUSSTL
Tucson
Sun 7/19
2:59 pm-11:58 pm
1 stop6h 59m
$224
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Tucson to St. Louis
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 Tucson to St. Louis in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Tucson-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Tucson-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Tucson-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Tucson-St. Louis 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 Tucson-St. Louis 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 Tucson to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Tucson with our price prediction graph.
TUS-STL
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 Tucson to St. Louis
How far ahead should I book a flight from Tucson to St. Louis?
To ensure you get the cheapest price possible for a flight from Tucson to St. Louis, you should look to book at least 42 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 Tucson to St. Louis?
Currently, February is the cheapest month in which you can book a flight from Tucson to St. Louis (average of $287). Flying from Tucson to St. Louis in April is currently the most expensive (average of $558). 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 Tucson to St. Louis?
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 June 4, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Tucson to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Tucson to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsO'Fallon
Edwardsville
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Tucson and St. Louis flights
Browse other Tucson and St. Louis flight options. Last updated on June 4, 2026.
Other flights from Tucson
Browse through other flights departing from Tucson. Flights are based on user searches made on Cheapflights and were last updated on June 4, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 4, 2026.
Top 4 airlines flying from Tucson to St. Louis
Discover the top 4 airlines that operate flights from Tucson 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 June 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$134 | Average$371 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$214 | Average$393 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$256 | Average$406 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$266 | Average$476 | FlexibilityNo cancel fee | On-time63% |