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

Our cheapest airline available from Tucson to St. Louis is American Airlines. Our recent data shows that you can find tickets from as low as $267 on this airline. Additional options worth looking into are Delta and Southwest, starting at $310 and $324 round-trip. Users have found that American Airlines is 35% 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 American Airlines, which is currently one of the cheapest options available, starting at $134. Southwest flights start at $139 while deals on United Airlines start at $215 one-way.

What is the cheapest day to fly from Tucson to St. Louis?

Travelers seeking maximum savings on their Tucson to St. Louis flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Tucson to St. Louis?

When booking a flight from Tucson to St. Louis, you may want to consider flying on American Airlines, Delta or United Airlines as they are the most popular for this route.

What is the cheapest day to fly round-trip from Tucson to St. Louis?

Monday is generally a great day to depart. Flying on this day could help you save up to 63%.

How far in advance should I book a flight from Tucson to St. Louis?

Find a great deal and save up to 133% by booking at least 59 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Tucson to St. Louis within the next two weeks, with the cheapest ticket starting at $615.

What is the cheapest month to fly from Tucson to St. Louis?

January can be a great time to fly to St. Louis from Tucson with a flight ticket averaging about $415. Cheapflights users have found deals in the month of January for as cheap as $298. The most expensive prices can be found in the month of March.

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.

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.

$134+ Flights from Tucson to St. Louis

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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.

Cheapflights Tip: The best prices from Tucson to Lambert-St Louis are usually found in January or November, booked 58 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Tucson to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$267 (American Airlines)
One-way from	$134 (American Airlines)
Popular in	March
Cheapest in	January
Average price	$436

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. 9% potential increase in price ($44 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 April 11, 2025.

Wed 9/2411:40 amTUS - STL

1 stop9h 19mAmerican Airlines

Tue 9/304:17 pmSTL - TUS

1 stop4h 52mAmerican Airlines

Deal found 4/10

$267

Fri 5/94:55 pmTUS - STL

1 stop6h 04mDelta

Sat 5/105:00 pmSTL - TUS

1 stop6h 49mDelta

Deal found 4/9

$310

Thu 9/259:45 amTUS - STL

2 stops6h 50mSouthwest

Mon 9/295:35 amSTL - TUS

1 stop5h 35mSouthwest

Deal found 4/10

$324

Fri 5/27:00 amTUS - STL

1 stop8h 07mUnited Airlines

Mon 5/56:00 amSTL - TUS

1 stop6h 29mUnited Airlines

Deal found 4/10

$336

Fri 5/235:07 pmTUS - STL

2 stops28h 57mAlaska Airlines

Tue 5/273:03 pmSTL - TUS

2 stops21h 57mAlaska Airlines

Deal found 4/10

$743

Best flights from Tucson to St. Louis
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 April 11, 2025.

Wed 9/2411:40 amTUS - STL

1 stop9h 19mAmerican Airlines

Tue 9/304:17 pmSTL - TUS

1 stop4h 52mAmerican Airlines

Deal found 4/10

$267

Fri 5/94:55 pmTUS - STL

1 stop6h 04mDelta

Sat 5/105:00 pmSTL - TUS

1 stop6h 49mDelta

Deal found 4/9

$310

Thu 9/259:45 amTUS - STL

2 stops6h 50mSouthwest

Mon 9/295:35 amSTL - TUS

1 stop5h 35mSouthwest

Deal found 4/10

$324

Fri 5/27:00 amTUS - STL

1 stop8h 07mUnited Airlines

Mon 5/56:00 amSTL - TUS

1 stop6h 29mUnited Airlines

Deal found 4/10

$336

Fri 5/235:07 pmTUS - STL

2 stops28h 57mAlaska Airlines

Tue 5/273:03 pmSTL - TUS

2 stops21h 57mAlaska Airlines

Deal found 4/10

$743

Last-minute flights from Tucson to St. Louis
Discover last-minute flight deals from Tucson to St. Louis. Data last updated April 11, 2025 and is based on user searches.

Fri 5/27:00 amTUS - STL

1 stop8h 07mUnited Airlines

Mon 5/56:00 amSTL - TUS

1 stop6h 29mUnited Airlines

Deal found 4/10

$336

Fri 5/94:55 pmTUS - STL

1 stop6h 04mDelta

Sat 5/105:00 pmSTL - TUS

1 stop6h 49mDelta

Deal found 4/9

$310

Fri 5/93:35 pmTUS - STL

1 stop6h 30mSouthwest

Sat 5/108:35 amSTL - TUS

2 stops9h 20mSouthwest

Deal found 4/9

$355

Tue 5/205:25 amTUS - STL

1 stop5h 42mAmerican Airlines

Wed 5/218:09 amSTL - TUS

1 stop5h 03mAmerican Airlines

Deal found 4/10

$267

Fri 5/235:07 pmTUS - STL

2 stops28h 57mAlaska Airlines

Tue 5/273:03 pmSTL - TUS

2 stops21h 57mAlaska Airlines

Deal found 4/10

$743

One-way flights from Tucson to St. Louis
Search for one-way flight options from Tucson to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 11, 2025.

Wed 5/75:25 amTUS - STL

1 stop7h 56mAmerican Airlines

Deal found 4/9

$134

Wed 5/75:50 amTUS - STL

2 stops10h 00mSouthwest

Deal found 4/9

$139

Sat 5/176:00 amTUS - STL

2 stops7h 47mUnited Airlines

Deal found 4/10

$215

Cheapflights Fare Finder

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

Price

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 9/24

11:40 am-10:59 pm

1 stop9h 19m

Lambert-St Louis

Tue 9/30

4:17 pm-7:09 pm

1 stop4h 52m

$267

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Fri 5/9

4:55 pm-12:59 am

1 stop6h 04m

Lambert-St Louis

Sat 5/10

5:00 pm-9:49 pm

1 stop6h 49m

$310

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 9/25

9:45 am-6:35 pm

2 stops6h 50m

Lambert-St Louis

Mon 9/29

5:35 am-9:10 am

1 stop5h 35m

$324

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Fri 5/2

7:00 am-5:07 pm

1 stop8h 07m

Lambert-St Louis

Mon 5/5

6:00 am-10:29 am

1 stop6h 29m

$336

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Fri 5/23

5:07 pm-12:04 am

2 stops28h 57m

Lambert-St Louis

Tue 5/27

3:03 pm-11:00 am

2 stops21h 57m

$743

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 5/7

5:25 am-3:21 pm

1 stop7h 56m

$134

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 5/7

5:50 am-5:50 pm

2 stops10h 00m

$139

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 5/17

6:00 am-3:47 pm

2 stops7h 47m

$215

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Compare providers for flights from Tucson to St. Louis

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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*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 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.

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 58 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?

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.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,851 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,279 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,910 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,636 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

What are the cheapest airlines flying from Tucson to St. Louis round-trip?
Our cheapest airline available from Tucson to St. Louis is American Airlines. Our recent data shows that you can find tickets from as low as $267 on this airline. Additional options worth looking into are Delta and Southwest, starting at $310 and $324 round-trip. Users have found that American Airlines is 35% 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 American Airlines, which is currently one of the cheapest options available, starting at $134. Southwest flights start at $139 while deals on United Airlines start at $215 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

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Wentzville

Eureka

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Festus

Glencoe

Alton

Farmington

Chesterfield

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Other flights to St. Louis

Top 4 airlines flying from Tucson to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$289	Average$339	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$296	Average$393	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$308	Average$386	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$350	Average$513	FlexibilityNo cancel fee	On-time69%

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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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Tucson to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Tucson to Lambert-St Louis are usually found in January or November, booked 58 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Tucson to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Tucson to St. Louis

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 April 11, 2025.

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 April 11, 2025.

Cheapflights Fare Finder

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

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 April.

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.

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 April 4, 2025.

What is the cheapest month to book a flight from Tucson to St. Louis?

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 April 11, 2025.

Rainfall in St. Louis by month

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

Temperature in St. Louis by month

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

Reviews of airlines servicing St. Louis

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?

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

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

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

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

What is the cheapest month to book a flight from Tucson to St. Louis?

Traveling to a place near Tucson?

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Alternative routes for Tucson to St. Louis

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Top 4 airlines flying from Tucson to St. Louis

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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 April 11, 2025.