HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$109+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — STL
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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.

Cheapflights Tip: The best prices from Tucson to Lambert-St Louis are usually found in April or October, booked 43 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Find flight deals from Tucson to St. Louis

Cheapest flights from Tucson to St. Louis
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 November 20, 2025.

This Delta deal was found by Cheapflights users on 11/18. 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.
Wed 12/33:04 pmTUS - STL
1 stop7h 25mDelta
Sun 12/76:15 amSTL - TUS
1 stop6h 19mDelta
Deal found 11/18$387
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Fri 12/57:00 amTUS - STL
1 stop4h 39mUnited Airlines
Tue 12/96:30 amSTL - TUS
2 stops10h 21mUnited Airlines
Deal found 11/20$392
This Southwest deal was found by Cheapflights users on 11/19. 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.
Sat 12/275:50 pmTUS - STL
1 stop6h 55mSouthwest
Sat 1/37:15 pmSTL - TUS
1 stop6h 45mSouthwest
Deal found 11/19$419
This American Airlines deal was found by Cheapflights users on 11/18. 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 12/311:30 amTUS - STL
2 stops6h 59mAmerican Airlines
Sun 12/76:55 amSTL - TUS
1 stop6h 26mAmerican Airlines
Deal found 11/18$432
This Southwest deal was found by Cheapflights users on 11/19. 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.
Wed 12/241:15 pmTUS - STL
1 stop7h 20mSouthwest
Sat 12/2710:45 pmSTL - TUS
1 stop12h 05mSouthwest
Deal found 11/19$468
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:17 pmTUS - STL
1 stop4h 32mAmerican Airlines
Fri 12/266:20 amSTL - TUS
1 stop7h 10mAmerican Airlines
Deal found 11/19$470
This Travelocity deal was found by Cheapflights users on 11/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:00 amTUS - STL
1 stop8h 19mMultiple Airlines
Mon 12/81:16 pmSTL - TUS
1 stop6h 25mMultiple Airlines
Deal found 11/20$569
This United Airlines deal was found by Cheapflights users on 11/18. 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.
Wed 12/310:40 amTUS - STL
2 stops11h 05mUnited Airlines
Sun 12/78:30 amSTL - TUS
2 stops10h 35mUnited Airlines
Deal found 11/18$583

Cheap 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 November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$263
(Delta)

One-way from

$109
(Trip.com)

Popular in

March

Cheapest in

April

Average price

$424
Provider with most accurate pricing for Tucson-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Tucson-Lambert-St Louis flights.
Search Deals
From Tucson to Lambert-St Louis
Search Deals
One-way flight from Tucson to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 20, 2025.
Use the filters below to find and compare flights from Tucson to St. Louis that are best for you.

Fly from

Tucson

Fly to

St. Louis

Route

Depart

Return

Price

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 1/28

2:38 pm-11:25 pm

1 stop7h 47m

Lambert-St Louis

Wed 2/4

2:38 pm-10:27 pm

1 stop8h 49m

$263

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/25

4:03 pm-11:38 pm

1 stop6h 35m

Lambert-St Louis

Sat 2/28

2:22 pm-10:27 pm

1 stop9h 05m

$287

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 2/26

5:55 pm-12:24 am

1 stop5h 29m

Lambert-St Louis

Sat 2/28

2:22 pm-10:27 pm

1 stop9h 05m

$307

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/25

5:55 pm-12:24 am

1 stop5h 29m

Lambert-St Louis

Mon 3/2

6:00 am-12:22 pm

1 stop7h 22m

$307

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 1/28

2:50 pm-10:59 pm

2 stops7h 09m

Lambert-St Louis

Wed 2/4

11:55 am-4:10 pm

1 stop5h 15m

$323

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 2/26

5:55 pm-12:24 am

1 stop5h 29m

Lambert-St Louis

Mon 3/2

2:22 pm-10:27 pm

1 stop9h 05m

$327

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Fri 1/23

8:00 am-4:14 pm

1 stop7h 14m

Lambert-St Louis

Tue 1/27

9:25 am-4:09 pm

1 stop7h 44m

$335

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 1/29

1:42 pm-11:37 pm

1 stop8h 55m

Lambert-St Louis

Sun 2/1

6:10 am-1:33 pm

1 stop8h 23m

$335

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Tue 1/20

1:42 pm-8:37 pm

1 stop5h 55m

Lambert-St Louis

Sun 2/8

6:10 am-1:33 pm

1 stop8h 23m

$335

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 1/8

1:42 pm-8:37 pm

1 stop5h 55m

Lambert-St Louis

Sun 1/11

6:00 am-12:32 pm

1 stop7h 32m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 22 results
1
2
3

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Tucson-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Tucson-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.
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?

Use this chart to determine the optimal time to book a round-trip flight from Tucson to St. Louis. Price data was last updated on November 14, 2025.

To ensure you get the cheapest price possible for a flight from Tucson to St. Louis, you should look to book at least 43 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, October is the cheapest month in which you can book a flight from Tucson to St. Louis (average of $111). Flying from Tucson to St. Louis in March is currently the most expensive (average of $352). 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 TUS to STL?

Find hourly flight availability from Tucson to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2025.

It’s optimal to fly from Tucson to St. Louis at noon. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight in the evening.

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 November 20, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,251 reviews
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,002 reviews
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,028 reviews
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,047 reviews
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Tucson to St. Louis?

    Airlines like Delta fly from Tucson to St. Louis in about 7h 47m. The time it takes to get you to your destination can typically vary by up to . The distance from Tucson to St. Louis is about 1241 mi.

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

    Our cheapest airline available from Tucson to St. Louis is Delta. Our recent data shows that you can find tickets from as low as $134 on this airline. Additional options worth looking into are American Airlines and Southwest, starting at $242 and $266 round-trip. Users have found that Delta is 66% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $109. Delta flights start at $144 while deals on American Airlines start at $149 one-way.

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

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

  • How can I find direct flights from Tucson to St. Louis?

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

  • Can I find deals for business class flights from Tucson to St. Louis?

    Yes. Cheapflights offers flight deals from Tucson to St. Louis 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 Tucson to St. Louis?

    Currently, October is the cheapest month in which you can book a flight from Tucson to St. Louis (average of $111). Flying from Tucson to St. Louis in March is currently the most expensive (average of $352). 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$134Average$326FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$242Average$391FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$266Average$386FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$266Average$427FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.