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Cheap flights from Tucson to St. Louis from $169

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Tucson to St. Louis departing on 8/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Tucson to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
7:50 am - 3:30 pm
TUS
-
STL
5h 40m
1 stop
Southwest Logo
4:05 pm - 9:55 pm
STL
-
TUS
7h 50m
1 stop
$342Southwest
Sat, Aug 29 - Tue, Sep 15
Delta Logo
1:49 pm - 10:15 pm
TUS
-
STL
6h 26m
1 stop
Delta Logo
7:08 am - 12:35 pm
STL
-
TUS
7h 27m
1 stop
$347Delta
Wed, Jul 22 - Wed, Jul 29
Southwest Logo
7:50 am - 3:30 pm
TUS
-
STL
5h 40m
1 stop
Southwest Logo
3:45 pm - 9:55 pm
STL
-
TUS
8h 10m
2 stops
$348Southwest
Sat, Aug 29 - Tue, Sep 15
Southwest Logo
7:25 am - 3:30 pm
TUS
-
STL
6h 05m
2 stops
Southwest Logo
3:45 pm - 9:55 pm
STL
-
TUS
8h 10m
2 stops
$357Southwest
Sat, Aug 29 - Tue, Sep 15
American Airlines Logo
3:58 pm - 11:42 pm
TUS
-
STL
5h 44m
1 stop
American Airlines Logo
12:45 pm - 5:47 pm
STL
-
TUS
7h 02m
1 stop
$361American Airlines
Thu, Aug 6 - Wed, Aug 12
Southwest Logo
3:45 pm - 12:45 am
TUS
-
STL
7h 00m
1 stop
Southwest Logo
2:45 pm - 8:35 pm
STL
-
TUS
7h 50m
2 stops
$366Southwest
Thu, Aug 6 - Wed, Aug 12
American Airlines Logo
3:58 pm - 11:42 pm
TUS
-
STL
5h 44m
1 stop
American Airlines Logo
12:45 pm - 5:47 pm
STL
-
TUS
7h 02m
1 stop
$375American Airlines
Thu, Aug 6 - Wed, Aug 12
Southwest Logo
5:40 am - 5:45 pm
TUS
-
STL
10h 05m
2 stops
Southwest Logo
7:35 am - 1:30 pm
STL
-
TUS
7h 55m
1 stop
$378Southwest
Wed, Jul 29 - Tue, Aug 4
Southwest Logo
3:45 pm - 12:45 am
TUS
-
STL
7h 00m
1 stop
Southwest Logo
8:35 am - 3:15 pm
STL
-
TUS
8h 40m
2 stops
$380Southwest
Thu, Aug 6 - Wed, Aug 12
Southwest Logo
11:10 am - 9:10 pm
TUS
-
STL
8h 00m
1 stop
Southwest Logo
7:00 am - 9:55 am
STL
-
TUS
4h 55m
1 stop
$387Southwest
Wed, Aug 5 - Tue, Aug 11

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Southwest flights from Tucson to St. Louis

Our best Southwest deals on Tucson to St. Louis flight tickets
Southwest
Aug 29
TUS7:50 amTucson
5h 40m
1 stop
STL3:30 pmLambert-St Louis
Sep 15
STL4:05 pmLambert-St Louis
7h 50m
1 stop
TUS9:55 pmTucson
$342
Southwest
Aug 29
TUS7:50 amTucson
5h 40m
1 stop
STL3:30 pmLambert-St Louis
Sep 15
STL3:45 pmLambert-St Louis
8h 10m
2 stops
TUS9:55 pmTucson
$348
Southwest
Aug 29
TUS7:25 amTucson
6h 05m
2 stops
STL3:30 pmLambert-St Louis
Sep 15
STL3:45 pmLambert-St Louis
8h 10m
2 stops
TUS9:55 pmTucson
$357

Delta flights from Tucson to St. Louis

Our best Delta deals on Tucson to St. Louis flight tickets
Delta
Jul 22
TUS1:49 pmTucson
6h 26m
1 stop
STL10:15 pmLambert-St Louis
Jul 29
STL7:08 amLambert-St Louis
7h 27m
1 stop
TUS12:35 pmTucson
$347
Delta
Jul 22
TUS1:49 pmTucson
6h 26m
1 stop
STL10:15 pmLambert-St Louis
Jul 27
STL3:58 pmLambert-St Louis
7h 51m
1 stop
TUS9:49 pmTucson
$407
Delta
Jul 18
TUS1:49 pmTucson
7h 31m
1 stop
STL11:20 pmLambert-St Louis
Jul 29
STL7:08 amLambert-St Louis
7h 27m
1 stop
TUS12:35 pmTucson
$437

momondo 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, momondo users made 832,500 searches. Data last updated July 6, 2026.
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

Cheapest round-trip

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 8/29

7:50 am-3:30 pm

1 stop5h 40m

Lambert-St Louis

Tue 9/15

4:05 pm-9:55 pm

1 stop7h 50m

$342

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 7/22

1:49 pm-10:15 pm

1 stop6h 26m

Lambert-St Louis

Wed 7/29

7:08 am-12:35 pm

1 stop7h 27m

$347

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 8/29

7:50 am-3:30 pm

1 stop5h 40m

Lambert-St Louis

Tue 9/15

3:45 pm-9:55 pm

2 stops8h 10m

$348

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 8/29

7:25 am-3:30 pm

2 stops6h 05m

Lambert-St Louis

Tue 9/15

3:45 pm-9:55 pm

2 stops8h 10m

$357
Quickest round-trip

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 8/6

3:58 pm-11:42 pm

1 stop5h 44m

Lambert-St Louis

Wed 8/12

12:45 pm-5:47 pm

1 stop7h 02m

$361

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 8/6

3:45 pm-12:45 am

1 stop7h 00m

Lambert-St Louis

Wed 8/12

2:45 pm-8:35 pm

2 stops7h 50m

$366

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 8/6

3:58 pm-11:42 pm

1 stop5h 44m

Lambert-St Louis

Wed 8/12

12:45 pm-5:47 pm

1 stop7h 02m

$375

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 7/29

5:40 am-5:45 pm

2 stops10h 05m

Lambert-St Louis

Tue 8/4

7:35 am-1:30 pm

1 stop7h 55m

$378

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 8/6

3:45 pm-12:45 am

1 stop7h 00m

Lambert-St Louis

Wed 8/12

8:35 am-3:15 pm

2 stops8h 40m

$380

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 8/5

11:10 am-9:10 pm

1 stop8h 00m

Lambert-St Louis

Tue 8/11

7:00 am-9:55 am

1 stop4h 55m

$387

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

What is the typical price of a round-trip flight between Tucson and St. Louis?

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

In general, February 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 $287. The month of August is another great option to travel to St. Louis, with average flight prices from Tucson averaging around $302.

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

As of July 2026, prices for Tucson to St. Louis flights are approximately 16% 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

4h 25m

Direct flights

None
The fastest flight from Tucson to St. Louis takes 4h 25m
There are no direct flights from Tucson to St. Louis. There are no popular flight routes from Tucson to St. Louis.
Search flight deals

Frequently asked questions about flying from Tucson to St. Louis

  • 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 4h 25m.

  • 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?

  • 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?

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
DeltaPriceFrom $134Free CancellationRating
7.8
8,451 reviews
Search Delta flights
American AirlinesPriceFrom $179Free CancellationRating
7.1
11,777 reviews
Search American Airlines flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
9,933 reviews
Search United Airlines flights
SouthwestPriceFrom $266Free CancellationRating
7.9
4,249 reviews
Search Southwest flights

  • Southwest Flights From Tucson to St. Louis

    Southwest flight deals from Tucson to St. Louis start from $266 round-trip. Over the 3 Southwest flights for this route in a normal week, average airfare is usually $476 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
St. Peters
O'Fallon
Collinsville
Alton
Farmington
Wentzville
Clayton
Fenton
Festus
Eureka
Litchfield
Edwardsville
Grafton
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.

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