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$144+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — STL
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Fri 12/57:21 pmTUS - STL
2 stops13h 53mFrontier
Sun 12/79:14 pmSTL - TUS
1 stop22h 27mFrontier
Deal found 11/11$234
This Expedia deal was found by Cheapflights users on 11/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:30 pmTUS - STL
1 stop20h 44mMultiple Airlines
Mon 12/87:00 amSTL - TUS
1 stop9h 45mMultiple Airlines
Deal found 11/12$277
This Expedia deal was found by Cheapflights users on 11/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:30 pmTUS - STL
1 stop20h 44mMultiple Airlines
Sun 12/73:23 pmSTL - TUS
1 stop9h 36mMultiple Airlines
Deal found 11/11$333
This Delta deal was found by Cheapflights users on 11/11. 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.
Fri 12/195:45 pmTUS - STL
1 stop6h 09mDelta
Sun 12/216:00 amSTL - TUS
1 stop7h 12mDelta
Deal found 11/11$407
This Southwest deal was found by Cheapflights users on 11/12. 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 12/225:00 pmTUS - STL
1 stop5h 35mSouthwest
Tue 12/305:25 amSTL - TUS
1 stop11h 55mSouthwest
Deal found 11/12$412
This Southwest deal was found by Cheapflights users on 11/11. 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 12/59:00 amTUS - STL
2 stops10h 05mSouthwest
Sun 12/79:50 amSTL - TUS
2 stops12h 30mSouthwest
Deal found 11/11$435
This Southwest deal was found by Cheapflights users on 11/11. 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 12/195:00 pmTUS - STL
1 stop5h 35mSouthwest
Sun 12/215:35 amSTL - TUS
2 stops8h 05mSouthwest
Deal found 11/11$452
This American Airlines deal was found by Cheapflights users on 11/11. 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 12/15:55 pmTUS - STL
1 stop4h 56mAmerican Airlines
Fri 12/55:14 amSTL - TUS
1 stop5h 28mAmerican Airlines
Deal found 11/11$453
This Southwest deal was found by Cheapflights users on 11/12. 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 12/59:00 amTUS - STL
2 stops10h 05mSouthwest
Mon 12/81:50 pmSTL - TUS
2 stops9h 00mSouthwest
Deal found 11/12$457
This Southwest deal was found by Cheapflights users on 11/12. 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 12/195:00 pmTUS - STL
1 stop5h 35mSouthwest
Sun 12/2810:00 pmSTL - TUS
1 stop12h 50mSouthwest
Deal found 11/12$472

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 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$234
(Kiwi.com)

One-way from

$144
(Delta)

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 ($21 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 13, 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

Thu 1/29

9:49 pm-8:53 pm

1 stop22h 04m

Lambert-St Louis

Tue 2/3

2:50 pm-11:59 pm

1 stop10h 09m

$251

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 1/21

8:15 am-4:55 pm

1 stop7h 40m

Lambert-St Louis

Wed 1/28

2:45 pm-9:26 pm

1 stop7h 41m

$267

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 1/21

1:15 pm-10:20 pm

2 stops8h 05m

Lambert-St Louis

Wed 1/28

2:20 pm-10:25 pm

2 stops9h 05m

$277

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Fri 12/5

12:30 pm-10:14 am

1 stop20h 44m

Lambert-St Louis

Mon 12/8

7:00 am-3:45 pm

1 stop9h 45m

$277

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 1/28

6:40 am-2:48 pm

1 stop7h 08m

Lambert-St Louis

Wed 2/4

5:00 pm-10:27 pm

1 stop6h 27m

$287

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 1/29

6:30 am-1:16 pm

1 stop5h 46m

Lambert-St Louis

Tue 2/3

6:00 am-11:57 am

1 stop6h 57m

$307

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 1/28

6:25 am-2:43 pm

2 stops7h 18m

Lambert-St Louis

Wed 2/4

9:25 am-4:10 pm

1 stop7h 45m

$322

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/25

4:03 pm-11:38 pm

1 stop6h 35m

Lambert-St Louis

Sun 3/1

7:10 am-2:53 pm

1 stop8h 43m

$347

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 1/10

12:24 pm-9:35 pm

1 stop8h 11m

$144

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 1/10

4:07 pm-11:59 pm

1 stop6h 52m

$144

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 20 results
1
2

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 7, 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 13, 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 13, 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
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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
8,007 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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
9,017 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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
11,051 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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 United Airlines and Southwest fly from Tucson to St. Louis in about 7h 40m. The time it takes to get you to your destination can typically vary by up to 25m. The distance from Tucson to St. Louis is about 1241 mi. This flight may include one or multiple stops.

  • 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 Delta, which is currently one of the cheapest options available, starting at $144. American Airlines flights start at $144 while deals on Southwest start at $169 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

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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 13, 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%

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