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Cheap flights from Tucson to St. Louis from $174

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 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Tucson to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:23 pm - 11:59 pm
TUS
-
STL
8h 36m
1 stop
Delta Logo
7:05 am - 12:15 pm
STL
-
TUS
7h 10m
1 stop
$347Delta
Wed, May 13 - Tue, May 19
American Airlines Logo
5:05 pm - 11:59 pm
TUS
-
STL
4h 54m
1 stop
American Airlines Logo
5:20 am - 8:59 am
STL
-
TUS
5h 39m
1 stop
$348American Airlines
Wed, May 6 - Wed, May 20
American Airlines Logo
2:15 pm - 10:59 pm
TUS
-
STL
6h 44m
2 stops
American Airlines Logo
4:30 pm - 11:59 pm
STL
-
TUS
9h 29m
1 stop
$352American Airlines
Tue, May 12 - Tue, May 19
American Airlines Logo
2:15 pm - 10:59 pm
TUS
-
STL
6h 44m
2 stops
American Airlines Logo
5:20 am - 8:59 am
STL
-
TUS
5h 39m
1 stop
$354American Airlines
Tue, May 12 - Wed, May 20
Delta Logo
1:25 pm - 11:59 pm
TUS
-
STL
8h 34m
1 stop
Delta Logo
5:15 pm - 9:44 pm
STL
-
TUS
6h 29m
1 stop
$357Delta
Thu, May 7 - Tue, May 12
American Airlines Logo
3:55 pm - 11:59 pm
TUS
-
STL
6h 04m
1 stop
American Airlines Logo
5:14 pm - 10:57 pm
STL
-
TUS
7h 43m
1 stop
$367American Airlines
Sat, May 23 - Sat, May 30
Southwest Logo
6:35 am - 1:50 pm
TUS
-
STL
5h 15m
1 stop
Southwest Logo
3:55 pm - 9:25 pm
STL
-
TUS
7h 30m
2 stops
$372Southwest
Wed, May 13 - Tue, May 19
Delta Logo
1:25 pm - 11:59 pm
TUS
-
STL
8h 34m
1 stop
Delta Logo
6:00 am - 12:15 pm
STL
-
TUS
8h 15m
1 stop
$377Delta
Fri, May 29 - Mon, Jun 1
Southwest Logo
11:00 am - 8:25 pm
TUS
-
STL
7h 25m
2 stops
Southwest Logo
8:45 am - 5:50 pm
STL
-
TUS
11h 05m
1 stop
$378Southwest
Sat, May 9 - Sat, May 16
Southwest Logo
7:50 am - 5:55 pm
TUS
-
STL
8h 05m
1 stop
Southwest Logo
5:30 am - 1:40 pm
STL
-
TUS
10h 10m
2 stops
$397Southwest
Wed, May 6 - Wed, May 20

Delta flights from Tucson to St. Louis

Our best Delta deals on Tucson to St. Louis flight tickets
Delta
May 13
TUS1:23 pmTucson
8h 36m
1 stop
STL11:59 pmLambert-St Louis
May 19
STL7:05 amLambert-St Louis
7h 10m
1 stop
TUS12:15 pmTucson
$347
Delta
May 7
TUS1:25 pmTucson
8h 34m
1 stop
STL11:59 pmLambert-St Louis
May 12
STL5:15 pmLambert-St Louis
6h 29m
1 stop
TUS9:44 pmTucson
$357
Delta
May 29
TUS1:25 pmTucson
8h 34m
1 stop
STL11:59 pmLambert-St Louis
Jun 1
STL6:00 amLambert-St Louis
8h 15m
1 stop
TUS12:15 pmTucson
$377

Southwest flights from Tucson to St. Louis

Our best Southwest deals on Tucson to St. Louis flight tickets
Southwest
May 13
TUS6:35 amTucson
5h 15m
1 stop
STL1:50 pmLambert-St Louis
May 19
STL3:55 pmLambert-St Louis
7h 30m
2 stops
TUS9:25 pmTucson
$372
Southwest
May 9
TUS11:00 amTucson
7h 25m
2 stops
STL8:25 pmLambert-St Louis
May 16
STL8:45 amLambert-St Louis
11h 05m
1 stop
TUS5:50 pmTucson
$378
Southwest
May 6
TUS7:50 amTucson
8h 05m
1 stop
STL5:55 pmLambert-St Louis
May 20
STL5:30 amLambert-St Louis
10h 10m
2 stops
TUS1:40 pmTucson
$397

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 April 14, 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

Wed 5/13

1:23 pm-11:59 pm

1 stop8h 36m

Lambert-St Louis

Tue 5/19

7:05 am-12:15 pm

1 stop7h 10m

$347
Quickest round-trip

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 5/6

5:05 pm-11:59 pm

1 stop4h 54m

Lambert-St Louis

Wed 5/20

5:20 am-8:59 am

1 stop5h 39m

$348

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Tue 5/12

2:15 pm-10:59 pm

2 stops6h 44m

Lambert-St Louis

Tue 5/19

4:30 pm-11:59 pm

1 stop9h 29m

$352

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Tue 5/12

2:15 pm-10:59 pm

2 stops6h 44m

Lambert-St Louis

Wed 5/20

5:20 am-8:59 am

1 stop5h 39m

$354

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 5/7

1:25 pm-11:59 pm

1 stop8h 34m

Lambert-St Louis

Tue 5/12

5:15 pm-9:44 pm

1 stop6h 29m

$357

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 5/23

3:55 pm-11:59 pm

1 stop6h 04m

Lambert-St Louis

Sat 5/30

5:14 pm-10:57 pm

1 stop7h 43m

$367

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 5/13

6:35 am-1:50 pm

1 stop5h 15m

Lambert-St Louis

Tue 5/19

3:55 pm-9:25 pm

2 stops7h 30m

$372

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Fri 5/29

1:25 pm-11:59 pm

1 stop8h 34m

Lambert-St Louis

Mon 6/1

6:00 am-12:15 pm

1 stop8h 15m

$377

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 5/9

11:00 am-8:25 pm

2 stops7h 25m

Lambert-St Louis

Sat 5/16

8:45 am-5:50 pm

1 stop11h 05m

$378

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 5/6

7:50 am-5:55 pm

1 stop8h 05m

Lambert-St Louis

Wed 5/20

5:30 am-1:40 pm

2 stops10h 10m

$397

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 October is another great option to travel to St. Louis, with average flight prices from Tucson averaging around $318.

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 $401 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 $330 on momondo.

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

As of April 2026, prices for Tucson to St. Louis flights are approximately 56% 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 29m

Direct flights

None
The fastest flight from Tucson to St. Louis takes 5h 29m
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 5h 29m.

  • 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
7.9
8,406 reviews
Search Delta flights
American AirlinesPriceFrom $214Free CancellationRating
7.1
11,573 reviews
Search American Airlines flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
9,581 reviews
Search United Airlines flights
SouthwestPriceFrom $266Free CancellationRating
8.0
4,328 reviews
Search Southwest flights

Traveling to a place near St. Louis?

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

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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