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$134+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — STL
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
1 adult, Economy
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Cheapflights Tip: The best prices from Tucson to Lambert-St Louis are usually found in April or January, booked 78 days in advance, depart on a Tuesday or Monday and return on a Tuesday

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 June 30, 2025.

Round-trip from

$222
(FlightHub)

One-way from

$134
(Delta)

Popular in

March

Cheapest in

April

Average price

$406
From Tucson to Lambert-St Louis
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One-way flight from Tucson to Lambert-St Louis
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Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 30, 2025.

This FlightHub deal was found by Cheapflights users on 6/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/711:32 amTUS - STL
1 stop19h 34mFrontier
Sat 9/137:55 pmSTL - TUS
1 stop16h 52mFrontier
Deal found 6/29$222
This Delta deal was found by Cheapflights users on 6/29. 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 9/306:00 amTUS - STL
1 stop6h 35mDelta
Tue 10/145:40 pmSTL - TUS
1 stop6h 14mDelta
Deal found 6/29$267
This United Airlines deal was found by Cheapflights users on 6/28. 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 8/306:00 amTUS - STL
2 stops7h 44mUnited Airlines
Tue 9/96:15 amSTL - TUS
1 stop6h 02mUnited Airlines
Deal found 6/28$272
This Southwest deal was found by Cheapflights users on 6/27. 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 8/72:05 pmTUS - STL
2 stops7h 20mSouthwest
Wed 8/1310:50 amSTL - TUS
1 stop7h 45mSouthwest
Deal found 6/27$297
This American Airlines deal was found by Cheapflights users on 6/29. 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 8/2811:55 amTUS - STL
2 stops6h 28mAmerican Airlines
Sun 8/317:01 amSTL - TUS
2 stops8h 05mAmerican Airlines
Deal found 6/29$326

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 30, 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

Sun 9/7

11:32 am-9:06 am

1 stop19h 34m

Lambert-St Louis

Sat 9/13

7:55 pm-10:47 am

1 stop16h 52m

$222

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 8/30

1:30 pm-8:56 pm

1 stop5h 26m

Lambert-St Louis

Tue 9/9

6:15 am-10:17 am

1 stop6h 02m

$267

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 8/28

1:35 pm-9:55 pm

1 stop6h 20m

Lambert-St Louis

Sun 8/31

4:50 pm-10:55 pm

1 stop8h 05m

$292

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 8/28

11:55 am-8:23 pm

2 stops6h 28m

Lambert-St Louis

Sun 8/31

7:01 am-1:06 pm

2 stops8h 05m

$326

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Mon 7/28

12:56 pm-9:42 pm

1 stop6h 46m

Lambert-St Louis

Mon 8/4

5:23 pm-9:36 pm

1 stop6h 13m

$352

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Fri 7/4

5:03 pm-11:59 pm

2 stops28h 56m

Lambert-St Louis

Mon 7/7

7:32 pm-4:34 pm

2 stops23h 02m

$1,358

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 7/30

5:55 am-1:26 pm

1 stop5h 31m

$134

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 9/17

10:06 am-8:15 pm

2 stops8h 09m

$139

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 7/10

11:30 am-9:11 am

1 stop19h 41m

$166

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 7/30

5:50 am-6:40 pm

2 stops10h 50m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 11 results
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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 June 27, 2025.

To ensure you get the cheapest price possible for a flight from Tucson to St. Louis, you should look to book at least 77 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, August is the cheapest month in which you can book a flight from Tucson to St. Louis (average of $311). Flying from Tucson to St. Louis in March is currently the most expensive (average of $356). 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 June 30, 2025.

It’s optimal to fly from Tucson to St. Louis at noon. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight in the afternoon.

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 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,852 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    Our cheapest airline available from Tucson to St. Louis is Frontier. Our recent data shows that you can find tickets from as low as $222 on this airline. Additional options worth looking into are United Airlines and Southwest, starting at $267 and $292 round-trip. Users have found that Frontier is 44% 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 $134. American Airlines flights start at $139 while deals on Frontier start at $166 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, August is the cheapest month in which you can book a flight from Tucson to St. Louis (average of $311). Flying from Tucson to St. Louis in March is currently the most expensive (average of $356). 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 Tucson?

Book flights to Tucson if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington

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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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$266Average$458FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$281Average$393FlexibilityNo cancel feeOn-time71%
DeltaCheapest$289Average$339FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$308Average$386FlexibilityNo cancel feeOn-time63%

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