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Cheap flights from St. Louis to Tucson from $178

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
7:10 pm - 11:26 pmSTL  Lambert-St Louis-TUS Tucson
6h 16m1 stop Dallas/Fort Worth
American Airlines Logo
1:23 pm - 9:59 pmTUS  Tucson-STL Lambert-St Louis
6h 36m1 stop Dallas/Fort Worth
$355American Airlines
Tue, Oct 6 - Thu, Oct 15
American Airlines Logo
5:17 am - 9:55 amSTL  Lambert-St Louis-TUS Tucson
5h 38m1 stop Dallas/Fort Worth
American Airlines Logo
6:42 am - 12:56 pmTUS  Tucson-STL Lambert-St Louis
5h 14m1 stop Phoenix Sky Harbor Intl
$355American Airlines
Thu, Feb 4 - Mon, Feb 8
American Airlines Logo
8:03 am - 11:11 amSTL  Lambert-St Louis-TUS Tucson
5h 08m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
11:53 am - 8:43 pmTUS  Tucson-STL Lambert-St Louis
6h 50m1 stop Phoenix Sky Harbor Intl
$355American Airlines
Tue, Oct 6 - Thu, Oct 8
United Airlines Logo
2:50 pm - 9:42 pmSTL  Lambert-St Louis-TUS Tucson
7h 52m1 stop Denver Intl
United Airlines Logo
6:30 am - 12:43 pmTUS  Tucson-STL Lambert-St Louis
5h 13m1 stop Denver Intl
$370United Airlines
Fri, Dec 4 - Mon, Dec 7
Southwest Logo
2:25 pm - 9:50 pmSTL  Lambert-St Louis-TUS Tucson
8h 25m2 stops Chicago Midway Las Vegas Harry Reid Intl
Southwest Logo
3:10 pm - 9:05 pmTUS  Tucson-STL Lambert-St Louis
4h 55m1 stop Denver Intl
$393Southwest
Fri, Dec 4 - Mon, Dec 7
Southwest Logo
6:30 am - 1:25 pmSTL  Lambert-St Louis-TUS Tucson
8h 55m2 stops Denver Intl Phoenix Sky Harbor Intl
Southwest Logo
11:30 am - 6:35 pmTUS  Tucson-STL Lambert-St Louis
6h 05m1 stop Denver Intl
$402Southwest
Wed, Oct 28 - Wed, Nov 4
United Airlines Logo
6:15 am - 11:31 amSTL  Lambert-St Louis-TUS Tucson
6h 16m1 stop Houston George Bush Intcntl
United Airlines Logo
1:30 pm - 11:19 pmTUS  Tucson-STL Lambert-St Louis
8h 49m2 stops Denver Intl Chicago O'Hare Intl
$419United Airlines
Tue, Feb 9 - Sat, Feb 13
United Airlines Logo
8:50 am - 3:57 pmSTL  Lambert-St Louis-TUS Tucson
8h 07m1 stop Denver Intl
United Airlines Logo
7:30 am - 2:13 pmTUS  Tucson-STL Lambert-St Louis
5h 43m1 stop Houston George Bush Intcntl
$445United Airlines
Tue, Nov 10 - Wed, Nov 11
Delta Logo
2:25 pm - 9:55 pmSTL  Lambert-St Louis-TUS Tucson
9h 30m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:30 pm - 12:44 amTUS  Tucson-STL Lambert-St Louis
6h 14m1 stop Salt Lake City
$464Delta
Fri, Oct 9 - Sun, Oct 11
Delta Logo
6:00 am - 12:00 pmSTL  Lambert-St Louis-TUS Tucson
7h 00m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:27 pm - 11:55 pmTUS  Tucson-STL Lambert-St Louis
6h 28m1 stop Atlanta Hartsfield-Jackson
$467Delta
Wed, Dec 23 - Sun, Dec 27

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United Airlines flights from St. Louis to Tucson

Our best United Airlines deals on St. Louis to Tucson flight tickets
United Airlines
Dec 4
STL2:50 pmLambert-St Louis
7h 52m
1 stop
TUS9:42 pmTucson
Dec 7
TUS6:30 amTucson
5h 13m
1 stop
STL12:43 pmLambert-St Louis
$370
United Airlines
Nov 10
STL8:50 amLambert-St Louis
8h 07m
1 stop
TUS3:57 pmTucson
Nov 11
TUS7:30 amTucson
5h 43m
1 stop
STL2:13 pmLambert-St Louis
$445
United Airlines
Nov 10
STL1:08 pmLambert-St Louis
9h 26m
2 stops
TUS9:34 pmTucson
Nov 11
TUS7:30 amTucson
5h 43m
1 stop
STL2:13 pmLambert-St Louis
$450

American Airlines flights from St. Louis to Tucson

Our best American Airlines deals on St. Louis to Tucson flight tickets
American Airlines
Oct 6
STL7:10 pmLambert-St Louis
6h 16m
1 stop
TUS11:26 pmTucson
Oct 15
TUS1:23 pmTucson
6h 36m
1 stop
STL9:59 pmLambert-St Louis
$355
American Airlines
Oct 1
STL5:43 amLambert-St Louis
5h 14m
1 stop
TUS8:57 amTucson
Oct 5
TUS3:55 pmTucson
5h 47m
1 stop
STL11:42 pmLambert-St Louis
$371
American Airlines
Oct 6
STL10:12 amLambert-St Louis
8h 33m
2 stops
TUS4:45 pmTucson
Oct 15
TUS1:23 pmTucson
6h 36m
1 stop
STL9:59 pmLambert-St Louis
$374

momondo Fare Finder

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

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Route

Depart

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Price

Cheapest round-trip

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 10/6

7:10 pm-11:26 pm

1 stop6h 16m

Tucson

Thu 10/15

1:23 pm-9:59 pm

1 stop6h 36m

$355
Quickest round-trip

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Thu 2/4

5:17 am-9:55 am

1 stop5h 38m

Tucson

Mon 2/8

6:42 am-12:56 pm

1 stop5h 14m

$355

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 10/6

8:03 am-11:11 am

1 stop5h 08m

Tucson

Thu 10/8

11:53 am-8:43 pm

1 stop6h 50m

$355

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Fri 12/4

2:50 pm-9:42 pm

1 stop7h 52m

Tucson

Mon 12/7

6:30 am-12:43 pm

1 stop5h 13m

$370

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Fri 12/4

2:25 pm-9:50 pm

2 stops8h 25m

Tucson

Mon 12/7

3:10 pm-9:05 pm

1 stop4h 55m

$393

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Wed 10/28

6:30 am-1:25 pm

2 stops8h 55m

Tucson

Wed 11/4

11:30 am-6:35 pm

1 stop6h 05m

$402

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 2/9

6:15 am-11:31 am

1 stop6h 16m

Tucson

Sat 2/13

1:30 pm-11:19 pm

2 stops8h 49m

$419

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Tue 11/10

8:50 am-3:57 pm

1 stop8h 07m

Tucson

Wed 11/11

7:30 am-2:13 pm

1 stop5h 43m

$445

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Fri 10/9

2:25 pm-9:55 pm

1 stop9h 30m

Tucson

Sun 10/11

4:30 pm-12:44 am

1 stop6h 14m

$464

St. LouisTucson

STL Lambert-St Louis - TUS Tucson

STLTUS

Lambert-St Louis

Wed 12/23

6:00 am-12:00 pm

1 stop7h 00m

Tucson

Sun 12/27

4:27 pm-11:55 pm

1 stop6h 28m

$467

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 low for flights on this route.

Typical prices usually range from $361 to $474.
The lowest price recently found on this route was $355.

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 January to fly from St. Louis, when ticket prices are also cheap, with an average price of $354.

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 $431 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 $332 on momondo.

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

As of September 2026, prices for St. Louis to Tucson flights are approximately 26% 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

Best Price Found

$178

Fastest flight time

5h 14m

Direct flights

None
The best one-way flight to Tucson from St. Louis in the past 72 hours is $178. The best round-trip flight deal from St. Louis to Tucson found on momondo in the last 72 hours is $355.
The fastest flight from St. Louis to Tucson takes 5h 14m
There are no direct flights from St. Louis to Tucson. There are no popular flight routes from St. Louis to Tucson.
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 14m 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
10,173 reviews
Search United Airlines flights
American AirlinesPriceFrom $276Free CancellationRating
7.1
12,039 reviews
Search American Airlines flights
SouthwestPriceFrom $307Free CancellationRating
8.0
4,200 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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