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$134+ Cheap flights from St. Louis to Tucson (STL - TUS)

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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — TUS
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Tucson are usually found in August or November, booked 44 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap 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 junio 12, 2025.

Round-trip from

$267
(Delta)

One-way from

$134
(Delta)

Popular in

March

Cheapest in

August

Average price

$396
From Lambert-St Louis to Tucson
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One-way flight from Lambert-St Louis to Tucson
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 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 St. Louis to Tucson

Cheapest flights from St. Louis to Tucson
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 junio 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
jue. 8/215:11 pmSTL - TUS
1 stop6h 36mDelta
lun. 8/254:55 pmTUS - STL
1 stop5h 43mDelta
Deal found 6/10$267
This American Airlines deal was found by Cheapflights users on 6/11. 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.
jue. 8/216:00 amSTL - TUS
1 stop7h 27mAmerican Airlines
lun. 8/251:43 pmTUS - STL
2 stops7h 31mAmerican Airlines
Deal found 6/11$272
This Booking.com deal was found by Cheapflights users on 6/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/307:54 pmSTL - TUS
1 stop16h 40mFrontier
dom. 9/711:32 amTUS - STL
1 stop19h 35mFrontier
Deal found 6/11$286
This Southwest deal was found by Cheapflights users on 6/11. 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.
mar. 7/85:40 amSTL - TUS
1 stop6h 05mSouthwest
mar. 7/159:30 amTUS - STL
2 stops7h 25mSouthwest
Deal found 6/11$345
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/309:17 amSTL - TUS
2 stops13h 01mUnited Airlines
dom. 9/76:00 amTUS - STL
2 stops7h 44mUnited Airlines
Deal found 6/11$423
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/74:01 pmSTL - TUS
2 stops30h 59mAlaska Airlines
lun. 11/107:30 amTUS - STL
2 stops30h 35mAlaska Airlines
Deal found 6/9$466

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 2,558,603 searches. Data last updated junio 12, 2025.
Use the filters below to find and compare flights from St. Louis to Tucson that are best for you.

Fly from

St. Louis

Fly to

Tucson

Route

Depart

Return

Price

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

jue. 8/21

5:11 pm-9:47 pm

1 stop6h 36m

Tucson

lun. 8/25

4:55 pm-12:38 am

1 stop5h 43m

$267

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

jue. 8/21

6:00 am-11:27 am

1 stop7h 27m

Tucson

lun. 8/25

1:43 pm-11:14 pm

2 stops7h 31m

$272

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

sáb. 8/30

7:54 pm-10:34 am

1 stop16h 40m

Tucson

dom. 9/7

11:32 am-9:07 am

1 stop19h 35m

$286

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

mar. 7/8

5:40 am-9:45 am

1 stop6h 05m

Tucson

mar. 7/15

9:30 am-6:55 pm

2 stops7h 25m

$345

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

sáb. 8/30

9:17 am-8:18 pm

2 stops13h 01m

Tucson

dom. 9/7

6:00 am-3:44 pm

2 stops7h 44m

$423

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

vie. 11/7

4:01 pm-10:00 pm

2 stops30h 59m

Tucson

lun. 11/10

7:30 am-3:05 pm

2 stops30h 35m

$466

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

jue. 8/14

5:11 pm-9:47 pm

1 stop6h 36m

$134

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

vie. 7/4

5:37 am-11:16 am

2 stops7h 39m

$139

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

sáb. 6/28

7:29 pm-10:42 am

1 stop17h 13m

$192

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

mar. 7/8

9:50 am-6:40 pm

2 stops10h 50m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 12 results
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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.
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?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Tucson. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Tucson, 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 St. Louis to Tucson?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Tucson (average of $364). Flying from St. Louis to Tucson in March is currently the most expensive (average of $424). 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 STL to TUS?

Find hourly flight availability from St. Louis to Tucson. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 7% on flights from St. Louis to Tucson by exploring options for tickets at noon.

Rainfall in Tucson by month

Plan your trip to Tucson by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Tucson ranges from 0.2 - 2.4 inches per month. August is typically the wettest month, when rainfall can reach 2.4 in. May is typically the driest time to visit Tucson when rainfall is around 0.2 in.

Temperature in Tucson by month

Plan your trip to Tucson by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Tucson, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 87.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 junio 12, 2025.
To help decide which airline to fly from St. Louis to Tucson, see what other customers have to say about Alaska Airlines, Southwest and Delta. 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

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

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

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

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

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

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 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.

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

    Flying on Delta is currently your cheapest option to Tucson, with prices starting at $267. Additional round-trip tickets that might be worth considering are offered by American Airlines and Frontier, with the lowest prices starting at $272 and $286, respectively. Delta is 28% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $134 on Delta. Other airlines that offer cheap prices include American Airlines from $139 and Frontier from $192 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Tucson (average of $364). Flying from St. Louis to Tucson in March is currently the most expensive (average of $424). 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
Sierra Vista
Green Valley

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Top 4 airlines flying from St. Louis to Tucson

Discover the top 4 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 2,558,603 searches. Data last updated junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$266Average$392FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$273Average$357FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$286Average$396FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$297Average$384FlexibilityNo cancel feeOn-time63%

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