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Cheap flights from St. Louis to Tucson from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Tucson departing on 12/31. 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 St. Louis to Tucson

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:27 am - 11:37 amSTL  Lambert-St Louis-TUS Tucson
6h 10m1 stop Chicago O'Hare Intl
American Airlines Logo
9:38 am - 6:04 pmTUS  Tucson-STL Lambert-St Louis
6h 26m1 stop Dallas/Fort Worth
$257American Airlines
Tue, Sep 15 - Tue, Sep 22
American Airlines Logo
7:00 am - 11:00 amSTL  Lambert-St Louis-TUS Tucson
6h 00m1 stop Dallas/Fort Worth
American Airlines Logo
12:27 pm - 8:44 pmTUS  Tucson-STL Lambert-St Louis
6h 17m1 stop Chicago O'Hare Intl
$257American Airlines
Wed, Sep 9 - Sat, Sep 12
American Airlines Logo
5:43 am - 11:00 amSTL  Lambert-St Louis-TUS Tucson
7h 17m1 stop Dallas/Fort Worth
American Airlines Logo
8:00 am - 6:04 pmTUS  Tucson-STL Lambert-St Louis
8h 04m1 stop Dallas/Fort Worth
$257American Airlines
Tue, Sep 15 - Wed, Sep 23
Southwest Logo
2:45 pm - 8:40 pmSTL  Lambert-St Louis-TUS Tucson
7h 55m2 stops Dallas Love Field Phoenix Sky Harbor Intl
Southwest Logo
4:00 pm - 10:40 pmTUS  Tucson-STL Lambert-St Louis
4h 40m1 stop Phoenix Sky Harbor Intl
$262Southwest
Tue, Sep 15 - Wed, Sep 23
United Airlines Logo
9:00 am - 12:27 pmSTL  Lambert-St Louis-TUS Tucson
5h 27m1 stop Denver Intl
United Airlines Logo
11:11 am - 10:59 pmTUS  Tucson-STL Lambert-St Louis
9h 48m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$262United Airlines
Wed, Sep 9 - Sat, Sep 12
United Airlines Logo
4:46 pm - 8:35 pmSTL  Lambert-St Louis-TUS Tucson
5h 49m1 stop Denver Intl
United Airlines Logo
1:29 pm - 8:38 pmTUS  Tucson-STL Lambert-St Louis
5h 09m1 stop Denver Intl
$316United Airlines
Tue, Sep 8 - Fri, Sep 11
Southwest Logo
8:50 am - 3:55 pmSTL  Lambert-St Louis-TUS Tucson
8h 05m1 stop Dallas Love Field
Southwest Logo
7:45 am - 3:00 pmTUS  Tucson-STL Lambert-St Louis
6h 15m1 stop Chicago Midway
$335Southwest
Sat, Jan 23 - Fri, Jan 29
Delta Logo
6:20 am - 12:40 pmSTL  Lambert-St Louis-TUS Tucson
7h 20m1 stop Minneapolis St Paul
Delta Logo
2:40 pm - 11:56 pmTUS  Tucson-STL Lambert-St Louis
8h 16m1 stop Atlanta Hartsfield-Jackson
$357Delta
Sat, Dec 5 - Sun, Dec 6
United Airlines Logo
11:15 am - 8:35 pmSTL  Lambert-St Louis-TUS Tucson
11h 20m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
9:15 am - 10:00 pmTUS  Tucson-STL Lambert-St Louis
10h 45m2 stops Denver Intl Chicago O'Hare Intl
$357United Airlines
Tue, Sep 15 - Tue, Sep 22
Delta Logo
5:00 pm - 9:46 pmSTL  Lambert-St Louis-TUS Tucson
6h 46m1 stop Salt Lake City
Delta Logo
6:00 am - 2:33 pmTUS  Tucson-STL Lambert-St Louis
6h 33m1 stop Atlanta Hartsfield-Jackson
$370Delta
Tue, Sep 1 - Sun, Sep 6

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American Airlines flights from St. Louis to Tucson

Our best American Airlines deals on St. Louis to Tucson flight tickets
American Airlines
Sep 15
STL7:27 amLambert-St Louis
6h 10m
1 stop
TUS11:37 amTucson
Sep 22
TUS9:38 amTucson
6h 26m
1 stop
STL6:04 pmLambert-St Louis
$257
American Airlines
Sep 8
STL5:42 amLambert-St Louis
5h 02m
1 stop
TUS8:44 amTucson
Sep 8
TUS3:58 pmTucson
5h 44m
1 stop
STL11:42 pmLambert-St Louis
$305
American Airlines
Sep 15
STL8:30 amLambert-St Louis
7h 04m
2 stops
TUS1:34 pmTucson
Sep 22
TUS7:00 amTucson
5h 44m
1 stop
STL2:44 pmLambert-St Louis
$324

United Airlines flights from St. Louis to Tucson

Our best United Airlines deals on St. Louis to Tucson flight tickets
United Airlines
Sep 9
STL9:00 amLambert-St Louis
5h 27m
1 stop
TUS12:27 pmTucson
Sep 12
TUS11:11 amTucson
9h 48m
2 stops
STL10:59 pmLambert-St Louis
$262
United Airlines
Sep 8
STL4:46 pmLambert-St Louis
5h 49m
1 stop
TUS8:35 pmTucson
Sep 11
TUS1:29 pmTucson
5h 09m
1 stop
STL8:38 pmLambert-St Louis
$316
United Airlines
Sep 9
STL9:43 amLambert-St Louis
9h 20m
2 stops
TUS5:03 pmTucson
Sep 12
TUS9:15 amTucson
11h 44m
2 stops
STL10:59 pmLambert-St Louis
$357

momondo 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, momondo users made 832,500 searches. Data last updated August 10, 2026.
Use the filters below to find and compare flights from St. Louis to Tucson that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 9/15

7:27 am-11:37 am

1 stop6h 10m

Tucson

Tue 9/22

9:38 am-6:04 pm

1 stop6h 26m

$257

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Wed 9/9

7:00 am-11:00 am

1 stop6h 00m

Tucson

Sat 9/12

12:27 pm-8:44 pm

1 stop6h 17m

$257

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 9/15

5:43 am-11:00 am

1 stop7h 17m

Tucson

Wed 9/23

8:00 am-6:04 pm

1 stop8h 04m

$257

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 9/15

2:45 pm-8:40 pm

2 stops7h 55m

Tucson

Wed 9/23

4:00 pm-10:40 pm

1 stop4h 40m

$262

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Wed 9/9

9:00 am-12:27 pm

1 stop5h 27m

Tucson

Sat 9/12

11:11 am-10:59 pm

2 stops9h 48m

$262
Quickest round-trip

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 9/8

4:46 pm-8:35 pm

1 stop5h 49m

Tucson

Fri 9/11

1:29 pm-8:38 pm

1 stop5h 09m

$316

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Sat 1/23

8:50 am-3:55 pm

1 stop8h 05m

Tucson

Fri 1/29

7:45 am-3:00 pm

1 stop6h 15m

$335

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Sat 12/5

6:20 am-12:40 pm

1 stop7h 20m

Tucson

Sun 12/6

2:40 pm-11:56 pm

1 stop8h 16m

$357

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 9/15

11:15 am-8:35 pm

2 stops11h 20m

Tucson

Tue 9/22

9:15 am-10:00 pm

2 stops10h 45m

$357

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 9/1

5:00 pm-9:46 pm

1 stop6h 46m

Tucson

Sun 9/6

6:00 am-2:33 pm

1 stop6h 33m

$370

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 Tucson from

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

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 St. Louis and Tucson?

Prices are currently typical for flights on this route.

Typical prices usually range from $333 to $746.
The lowest price recently found on this route was $335.

What is the cheapest month to fly to Tucson?

In general, October is the cheapest month to fly from St. Louis to Tucson. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $289. If you don’t want to visit Tucson in October, then you should wait until December to fly from St. Louis, when ticket prices are also cheap, with an average price of $335.

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

You are more likely to see cheaper flights to Tucson from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Tucson for around $416 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tucson from St. Louis for as low as $341 on momondo.

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

As of August 2026, prices for St. Louis to Tucson flights are approximately 28% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Tucson

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

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

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

Fastest flight time

5h 02m

Direct flights

Sat

Airports in Tucson

1 airport
The fastest flight from St. Louis to Tucson takes 5h 02m
Direct flights go from St. Louis to Tucson on Saturday. There are no airlines offering direct flights.
There is 1 airport in Tucson. From St. Louis there are direct flights to Tucson (TUS).
Search flight deals

Frequently asked questions about flying from St. Louis to Tucson

  • How far is Lambert-St Louis to Tucson by plane?

    The straight-line distance from Lambert-St Louis to Tucson is 1245.9 mi. Typically, this will take 5h 02m by plane in normal conditions.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Tucson Airport.

  • What documentation or ID do you need to fly to Tucson Airport?

    The travel and health documents you'll need for your trip to Tucson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Tucson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Tucson?

Best airlines flying from St. Louis to Tucson

Compare and see reviews for airlines that fly from St. Louis to Tucson with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $260Free CancellationRating
7.4
10,099 reviews
Search United Airlines flights
American AirlinesPriceFrom $278Free CancellationRating
7.1
11,898 reviews
Search American Airlines flights
SouthwestPriceFrom $307Free CancellationRating
8.0
4,218 reviews
Search Southwest flights

Traveling to a place near Tucson?

Book flights to Tucson if you plan to visit one of these locations
Tombstone
Bisbee
Sierra Vista
Oro Valley
Green Valley
Douglas

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Tucson from St. Louis.

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

Flights from St. Louis to Tucson 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 St. Louis to Tucson?

Once all potential St. Louis to Tucson 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 St. Louis to Tucson right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Tucson now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Tucson and let you know when they change.

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