How many flights depart from Tucson to St. Louis on average per week?

As of January 2026, 1 flights take off from Tucson and land in St. Louis each week. The most common flight departure day for this route is Mon, with 100% of weekly flights taking off on this day.

What airlines fly to St. Louis?

American Airlines, Southwest and United Airlines are the top three most popular airlines that fly to St. Louis from Tucson according to our data. American Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Tucson to Lambert-St Louis?

Delta, Frontier, and American Airlines are the most popular carriers operating from Tucson to Lambert-St Louis

When did momondo last update prices for flights from Tucson Airport to Lambert-St Louis Airport?

Prices for flights from Tucson Airport to Lambert-St Louis Airport were last updated today.

How many operators does momondo search for flights from Tucson Airport to Lambert-St Louis Airport?

As of January 2026, there are 4 operators available to choose from for flights from Tucson Airport to Lambert-St Louis Airport.

How old do you have to be to fly from Tucson Airport to Lambert-St Louis Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Tucson Airport to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$144 Cheap Flights from Tucson to St. Louis in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Tucson to St. Louis

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 1:14 pm

TUS

STL

5h 44m1 stop

2:45 pm - 9:40 pm

STL

TUS

7h 55m1 stop

$243United Airlines

Sat, Feb 14 - Wed, Feb 18

6:30 am - 4:02 pm

TUS

STL

8h 32m2 stops

2:45 pm - 9:40 pm

STL

TUS

7h 55m1 stop

$248United Airlines

Sat, Feb 14 - Wed, Feb 18

1:25 pm - 10:00 pm

TUS

STL

7h 35m1 stop

6:00 am - 11:53 am

STL

TUS

6h 53m1 stop

$257United Airlines

Wed, Feb 4 - Wed, Feb 11

2:50 pm - 10:59 pm

TUS

STL

7h 09m2 stops

2:38 pm - 9:47 pm

STL

TUS

8h 09m1 stop

$262American Airlines

Wed, Feb 4 - Wed, Feb 11

7:06 am - 3:28 pm

TUS

STL

7h 22m1 stop

7:58 am - 3:33 pm

STL

TUS

8h 35m1 stop

$265American Airlines

Wed, Feb 18 - Sat, Feb 21

12:05 pm - 8:35 pm

TUS

STL

7h 30m2 stops

1:15 pm - 8:50 pm

STL

TUS

8h 35m2 stops

$269Southwest

Wed, Feb 4 - Wed, Feb 11

1:34 pm - 11:36 pm

TUS

STL

9h 02m1 stop

2:22 pm - 10:30 pm

STL

TUS

9h 08m1 stop

$272Delta

Wed, Feb 25 - Sat, Feb 28

2:45 pm - 11:22 pm

TUS

STL

7h 37m2 stops

4:13 pm - 8:56 pm

STL

TUS

5h 43m1 stop

$277American Airlines

Sat, Feb 14 - Wed, Feb 18

12:57 pm - 7:29 pm

TUS

STL

5h 32m1 stop

9:35 am - 3:33 pm

STL

TUS

6h 58m2 stops

$279American Airlines

Wed, Feb 18 - Sat, Feb 21

12:24 pm - 9:38 pm

TUS

STL

8h 14m1 stop

9:59 am - 4:22 pm

STL

TUS

7h 23m1 stop

$287Delta

Sat, Jan 31 - Tue, Feb 3

United Airlines flights from Tucson to St. Louis

Our best United Airlines deals on Tucson to St. Louis flight tickets

United Airlines

Feb 14

TUS6:30 amTucson

5h 44m

1 stop

STL1:14 pmLambert-St Louis

Feb 18

STL2:45 pmLambert-St Louis

7h 55m

1 stop

TUS9:40 pmTucson

$243

Find similar

United Airlines

Feb 14

TUS6:30 amTucson

8h 32m

2 stops

STL4:02 pmLambert-St Louis

Feb 18

STL2:45 pmLambert-St Louis

7h 55m

1 stop

TUS9:40 pmTucson

$248

Find similar

United Airlines

Feb 4

TUS1:25 pmTucson

7h 35m

1 stop

STL10:00 pmLambert-St Louis

Feb 11

STL6:00 amLambert-St Louis

6h 53m

1 stop

TUS11:53 amTucson

$257

Find similar

American Airlines flights from Tucson to St. Louis

Our best American Airlines deals on Tucson to St. Louis flight tickets

American Airlines

Feb 4

TUS2:50 pmTucson

7h 09m

2 stops

STL10:59 pmLambert-St Louis

Feb 11

STL2:38 pmLambert-St Louis

8h 09m

1 stop

TUS9:47 pmTucson

$262

Find similar

American Airlines

Feb 18

TUS7:06 amTucson

7h 22m

1 stop

STL3:28 pmLambert-St Louis

Feb 21

STL7:58 amLambert-St Louis

8h 35m

1 stop

TUS3:33 pmTucson

$265

Find similar

American Airlines

Feb 14

TUS2:45 pmTucson

7h 37m

2 stops

STL11:22 pmLambert-St Louis

Feb 18

STL4:13 pmLambert-St Louis

5h 43m

1 stop

TUS8:56 pmTucson

$277

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 2/14

6:30 am-1:14 pm

1 stop5h 44m

Lambert-St Louis

Wed 2/18

2:45 pm-9:40 pm

1 stop7h 55m

$243

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 2/14

6:30 am-4:02 pm

2 stops8h 32m

Lambert-St Louis

Wed 2/18

2:45 pm-9:40 pm

1 stop7h 55m

$248

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/4

1:25 pm-10:00 pm

1 stop7h 35m

Lambert-St Louis

Wed 2/11

6:00 am-11:53 am

1 stop6h 53m

$257

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/4

2:50 pm-10:59 pm

2 stops7h 09m

Lambert-St Louis

Wed 2/11

2:38 pm-9:47 pm

1 stop8h 09m

$262

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/18

7:06 am-3:28 pm

1 stop7h 22m

Lambert-St Louis

Sat 2/21

7:58 am-3:33 pm

1 stop8h 35m

$265

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/4

12:05 pm-8:35 pm

2 stops7h 30m

Lambert-St Louis

Wed 2/11

1:15 pm-8:50 pm

2 stops8h 35m

$269

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/25

1:34 pm-11:36 pm

1 stop9h 02m

Lambert-St Louis

Sat 2/28

2:22 pm-10:30 pm

1 stop9h 08m

$272

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 2/14

2:45 pm-11:22 pm

2 stops7h 37m

Lambert-St Louis

Wed 2/18

4:13 pm-8:56 pm

1 stop5h 43m

$277

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/18

12:57 pm-7:29 pm

1 stop5h 32m

Lambert-St Louis

Sat 2/21

9:35 am-3:33 pm

2 stops6h 58m

$279

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 1/31

12:24 pm-9:38 pm

1 stop8h 14m

Lambert-St Louis

Tue 2/3

9:59 am-4:22 pm

1 stop7h 23m

$287

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Tucson to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

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

In general, April is the cheapest month to fly from Tucson to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $316. The month of October is another great option to travel to St. Louis, with average flight prices from Tucson averaging around $321.

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

You are more likely to see cheaper flights to St. Louis from Tucson when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $388 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Tucson for as low as $315 on momondo.

How have Tucson to St. Louis flight prices changed over time?

As of January 2026, prices for Tucson to St. Louis flights are approximately 23% more expensive when compared to flights at the same time last year.

When to book flights from Tucson to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Tucson to St. Louis according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Tucson to St. Louis (TUS to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Tucson to St. Louis

Fastest flight time	5h 15m
Direct flights	None

The fastest flight from Tucson to St. Louis takes 5h 15m

There are no direct flights from Tucson to St. Louis. There are no popular flight routes from Tucson to St. Louis.

Search flight deals

How far is Tucson to Lambert-St Louis by plane?
The distance between Tucson and Lambert-St Louis is about 1245.9 mi. A reasonable flight in good conditions will take 5h 15m.
When did momondo last update prices for flights from Tucson Airport to Lambert-St Louis Airport?
Prices for flights from Tucson Airport to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Tucson Airport to Lambert-St Louis Airport?
As of January 2026, there are 4 operators available to choose from for flights from Tucson Airport to Lambert-St Louis Airport.
How old do you have to be to fly from Tucson Airport to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Tucson Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Tucson to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Tucson to St. Louis is American Airlines (54% of total bookings). The next most popular airlines are Southwest (23%), United Airlines (16%), and Delta (6%).

Best airlines flying from Tucson to St. Louis

Compare and see reviews for airlines that fly from Tucson to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $134	Free Cancellation	Rating 7.9 8,022 reviews	Search Delta flights
American Airlines	PriceFrom $214	Free Cancellation	Rating 7.2 11,088 reviews	Search American Airlines flights
Southwest	PriceFrom $266	Free Cancellation	Rating 8.0 4,249 reviews	Search Southwest flights
United Airlines	PriceFrom $266	Free Cancellation	Rating 7.4 9,138 reviews	Search United Airlines flights

Southwest Flights From Tucson to St. Louis
Southwest flight deals from Tucson to St. Louis start from $266 round-trip. Over the 1 Southwest flight for this route in a normal week, average airfare is usually $398 round-trip - but some users have found much cheaper deals with momondo.

St. Charles

Chesterfield

Hermann

Fairview Heights

O'Fallon

Maryland Heights

Florissant

Fenton

Collinsville

St. Peters

Wentzville

Alton

Farmington

Clayton

Eureka

Festus

Edwardsville

Glencoe

Litchfield

Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Tucson to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Tucson to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Tucson to St. Louis with flexible booking policies on momondo?

Flights from Tucson to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Tucson to St. Louis?

Once all potential Tucson to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Tucson to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Tucson to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.