Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Tucson from $133

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 3/11. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Tucson

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:51 pm - 11:52 am
STL
-
TUS
22h 01m
1 stop
Frontier Logo
1:33 pm - 9:26 pm
TUS
-
STL
6h 53m
1 stop
$212Frontier
Sat, Feb 21 - Fri, Feb 27
Delta Logo
7:03 am - 11:30 am
STL
-
TUS
6h 27m
1 stop
Delta Logo
7:10 am - 5:26 pm
TUS
-
STL
8h 16m
1 stop
$307Delta
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
5:21 pm - 11:59 pm
STL
-
TUS
8h 38m
1 stop
American Airlines Logo
2:15 pm - 10:59 pm
TUS
-
STL
6h 44m
2 stops
$312American Airlines
Tue, Apr 7 - Tue, Apr 14
Southwest Logo
8:25 am - 1:35 pm
STL
-
TUS
7h 10m
1 stop
Southwest Logo
4:50 pm - 1:55 am
TUS
-
STL
7h 05m
1 stop
$315Southwest
Tue, Mar 31 - Sat, Apr 4
American Airlines Logo
5:20 am - 8:59 am
STL
-
TUS
5h 39m
1 stop
American Airlines Logo
2:15 pm - 10:59 pm
TUS
-
STL
6h 44m
2 stops
$316American Airlines
Tue, Apr 7 - Tue, Apr 14
American Airlines Logo
2:37 pm - 7:50 pm
STL
-
TUS
7h 13m
1 stop
American Airlines Logo
2:15 pm - 10:59 pm
TUS
-
STL
6h 44m
2 stops
$317American Airlines
Tue, Apr 7 - Tue, Apr 14
Frontier Logo
11:32 am - 12:43 pm
STL
-
TUS
27h 11m
2 stops
Frontier Logo
11:49 am - 11:19 am
TUS
-
STL
21h 30m
1 stop
$319Frontier
Wed, Mar 11 - Sun, Mar 15
Multiple Airlines Logo
8:17 pm - 4:57 pm
STL
-
TUS
21h 40m
2 stops
Multiple Airlines Logo
1:33 pm - 5:46 pm
TUS
-
STL
27h 13m
1 stop
$320Multiple Airlines
Sat, Feb 21 - Fri, Feb 27
American Airlines Logo
5:12 am - 8:45 am
STL
-
TUS
5h 33m
1 stop
American Airlines Logo
6:00 am - 3:28 pm
TUS
-
STL
7h 28m
1 stop
$323American Airlines
Wed, Mar 11 - Wed, Mar 18
American Airlines Logo
5:12 am - 8:45 am
STL
-
TUS
5h 33m
1 stop
American Airlines Logo
5:21 pm - 11:59 pm
TUS
-
STL
4h 38m
1 stop
$325American Airlines
Wed, Mar 11 - Sat, Mar 14

Southwest flights from St. Louis to Tucson

Our best Southwest deals on St. Louis to Tucson flight tickets
Southwest
Mar 31
STL8:25 amLambert-St Louis
7h 10m
1 stop
TUS1:35 pmTucson
Apr 4
TUS4:50 pmTucson
7h 05m
1 stop
STL1:55 amLambert-St Louis
$315
Southwest
Mar 10
STL4:00 pmLambert-St Louis
8h 10m
2 stops
TUS10:10 pmTucson
Mar 17
TUS6:15 amTucson
5h 20m
1 stop
STL1:35 pmLambert-St Louis
$326
Southwest
Mar 25
STL10:30 amLambert-St Louis
8h 45m
1 stop
TUS5:15 pmTucson
Mar 30
TUS4:40 pmTucson
6h 25m
1 stop
STL1:05 amLambert-St Louis
$339

United Airlines flights from St. Louis to Tucson

Our best United Airlines deals on St. Louis to Tucson flight tickets
United Airlines
Mar 4
STL7:41 amLambert-St Louis
9h 21m
2 stops
TUS4:02 pmTucson
Mar 11
TUS4:43 pmTucson
4h 51m
1 stop
STL11:34 pmLambert-St Louis
$324
United Airlines
Mar 11
STL9:00 amLambert-St Louis
8h 47m
1 stop
TUS3:47 pmTucson
Mar 16
TUS4:43 pmTucson
4h 51m
1 stop
STL11:34 pmLambert-St Louis
$333
United Airlines
Mar 11
STL2:50 pmLambert-St Louis
7h 59m
1 stop
TUS8:49 pmTucson
Mar 18
TUS6:00 amTucson
5h 19m
1 stop
STL1:19 pmLambert-St Louis
$336

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 February 11, 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

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Sat 2/21

2:51 pm-11:52 am

1 stop22h 01m

Tucson

Fri 2/27

1:33 pm-9:26 pm

1 stop6h 53m

$212

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Wed 4/8

7:03 am-11:30 am

1 stop6h 27m

Tucson

Wed 4/15

7:10 am-5:26 pm

1 stop8h 16m

$307

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 4/7

5:21 pm-11:59 pm

1 stop8h 38m

Tucson

Tue 4/14

2:15 pm-10:59 pm

2 stops6h 44m

$312

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 3/31

8:25 am-1:35 pm

1 stop7h 10m

Tucson

Sat 4/4

4:50 pm-1:55 am

1 stop7h 05m

$315

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 4/7

5:20 am-8:59 am

1 stop5h 39m

Tucson

Tue 4/14

2:15 pm-10:59 pm

2 stops6h 44m

$316

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 4/7

2:37 pm-7:50 pm

1 stop7h 13m

Tucson

Tue 4/14

2:15 pm-10:59 pm

2 stops6h 44m

$317

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Wed 3/11

11:32 am-12:43 pm

2 stops27h 11m

Tucson

Sun 3/15

11:49 am-11:19 am

1 stop21h 30m

$319

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Sat 2/21

8:17 pm-4:57 pm

2 stops21h 40m

Tucson

Fri 2/27

1:33 pm-5:46 pm

1 stop27h 13m

$320

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Wed 3/11

5:12 am-8:45 am

1 stop5h 33m

Tucson

Wed 3/18

6:00 am-3:28 pm

1 stop7h 28m

$323

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Wed 3/11

5:12 am-8:45 am

1 stop5h 33m

Tucson

Sat 3/14

5:21 pm-11:59 pm

1 stop4h 38m

$325

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 August to fly from St. Louis, when ticket prices are also cheap, with an average price of $317.

How far in advance should I book a flight 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 $369 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 $305 on momondo.

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

As of February 2026, prices for St. Louis to Tucson flights are approximately 32% 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 30m

Direct flights

None
The fastest flight from St. Louis to Tucson takes 5h 30m
There are no direct flights from St. Louis to Tucson. There are no popular flight routes from St. Louis to Tucson.
Search flight deals

  • 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 30m 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
DeltaPriceFrom $143Free CancellationRating
7.9
8,175 reviews
Search Delta flights
American AirlinesPriceFrom $266Free CancellationRating
7.2
11,266 reviews
Search American Airlines flights
SouthwestPriceFrom $274Free CancellationRating
8.0
4,280 reviews
Search Southwest flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,274 reviews
Search United Airlines 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.

An easier way to manage your Tucson trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 3/13
Fri 3/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States