Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Tucson 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 St. Louis to Tucson departing on 5/12. 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.

Find the cheapest flights from St. Louis to Tucson

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:00 pm - 9:44 pm
STL
-
TUS
7h 44m
1 stop
Delta Logo
4:52 pm - 12:30 am
TUS
-
STL
5h 38m
1 stop
$347Delta
Sat, May 9 - Tue, May 12
United Airlines Logo
9:00 am - 5:29 pm
STL
-
TUS
10h 29m
2 stops
United Airlines Logo
5:30 am - 1:13 pm
TUS
-
STL
5h 43m
1 stop
$352United Airlines
Sat, May 9 - Tue, May 12
American Airlines Logo
5:21 pm - 11:59 pm
STL
-
TUS
8h 38m
1 stop
American Airlines Logo
3:06 pm - 12:12 am
TUS
-
STL
7h 06m
1 stop
$357American Airlines
Mon, May 11 - Wed, May 13
Delta Logo
5:15 pm - 9:44 pm
STL
-
TUS
6h 29m
1 stop
Delta Logo
11:04 am - 9:06 pm
TUS
-
STL
8h 02m
1 stop
$367Delta
Tue, May 19 - Sun, May 24
American Airlines Logo
8:00 am - 1:19 pm
STL
-
TUS
7h 19m
1 stop
American Airlines Logo
3:55 pm - 11:59 pm
TUS
-
STL
6h 04m
1 stop
$368American Airlines
Mon, Jun 1 - Mon, Jun 8
Southwest Logo
1:45 pm - 6:20 pm
STL
-
TUS
6h 35m
1 stop
Southwest Logo
2:25 pm - 12:10 am
TUS
-
STL
7h 45m
2 stops
$372Southwest
Mon, Jun 1 - Mon, Jun 8
Southwest Logo
6:20 am - 11:20 am
STL
-
TUS
7h 00m
2 stops
Southwest Logo
2:25 pm - 12:10 am
TUS
-
STL
7h 45m
2 stops
$377Southwest
Mon, Jun 1 - Mon, Jun 8
Delta Logo
6:00 am - 12:18 pm
STL
-
TUS
8h 18m
1 stop
Delta Logo
4:31 pm - 12:37 am
TUS
-
STL
6h 06m
1 stop
$387Delta
Wed, Jul 1 - Wed, Jul 8
Southwest Logo
5:20 pm - 10:40 pm
STL
-
TUS
7h 20m
2 stops
Southwest Logo
4:55 pm - 11:30 pm
TUS
-
STL
4h 35m
1 stop
$392Southwest
Tue, Jul 21 - Tue, Jul 28
American Airlines Logo
6:00 am - 11:37 am
STL
-
TUS
7h 37m
1 stop
American Airlines Logo
2:58 pm - 11:58 pm
TUS
-
STL
7h 00m
1 stop
$397American Airlines
Wed, Jun 10 - Thu, Jun 18

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

Delta flights from St. Louis to Tucson

Our best Delta deals on St. Louis to Tucson flight tickets
Delta
May 9
STL4:00 pmLambert-St Louis
7h 44m
1 stop
TUS9:44 pmTucson
May 12
TUS4:52 pmTucson
5h 38m
1 stop
STL12:30 amLambert-St Louis
$347
Delta
May 19
STL5:15 pmLambert-St Louis
6h 29m
1 stop
TUS9:44 pmTucson
May 24
TUS11:04 amTucson
8h 02m
1 stop
STL9:06 pmLambert-St Louis
$367
Delta
Jul 1
STL6:00 amLambert-St Louis
8h 18m
1 stop
TUS12:18 pmTucson
Jul 8
TUS4:31 pmTucson
6h 06m
1 stop
STL12:37 amLambert-St Louis
$387

United Airlines flights from St. Louis to Tucson

Our best United Airlines deals on St. Louis to Tucson flight tickets
United Airlines
May 9
STL9:00 amLambert-St Louis
10h 29m
2 stops
TUS5:29 pmTucson
May 12
TUS5:30 amTucson
5h 43m
1 stop
STL1:13 pmLambert-St Louis
$352
United Airlines
May 9
STL7:45 amLambert-St Louis
9h 19m
2 stops
TUS3:04 pmTucson
May 10
TUS1:39 pmTucson
5h 04m
1 stop
STL8:43 pmLambert-St Louis
$412
United Airlines
Jun 2
STL4:48 pmLambert-St Louis
5h 24m
1 stop
TUS8:12 pmTucson
Jun 3
TUS7:20 amTucson
6h 26m
1 stop
STL3:46 pmLambert-St Louis
$508

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 April 20, 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 - TUS

STLTUS

Lambert-St Louis

Sat 5/9

4:00 pm-9:44 pm

1 stop7h 44m

Tucson

Tue 5/12

4:52 pm-12:30 am

1 stop5h 38m

$347

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Sat 5/9

9:00 am-5:29 pm

2 stops10h 29m

Tucson

Tue 5/12

5:30 am-1:13 pm

1 stop5h 43m

$352

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Mon 5/11

5:21 pm-11:59 pm

1 stop8h 38m

Tucson

Wed 5/13

3:06 pm-12:12 am

1 stop7h 06m

$357

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 5/19

5:15 pm-9:44 pm

1 stop6h 29m

Tucson

Sun 5/24

11:04 am-9:06 pm

1 stop8h 02m

$367

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Mon 6/1

8:00 am-1:19 pm

1 stop7h 19m

Tucson

Mon 6/8

3:55 pm-11:59 pm

1 stop6h 04m

$368

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Mon 6/1

1:45 pm-6:20 pm

1 stop6h 35m

Tucson

Mon 6/8

2:25 pm-12:10 am

2 stops7h 45m

$372

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Mon 6/1

6:20 am-11:20 am

2 stops7h 00m

Tucson

Mon 6/8

2:25 pm-12:10 am

2 stops7h 45m

$377

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Wed 7/1

6:00 am-12:18 pm

1 stop8h 18m

Tucson

Wed 7/8

4:31 pm-12:37 am

1 stop6h 06m

$387
Quickest round-trip

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 7/21

5:20 pm-10:40 pm

2 stops7h 20m

Tucson

Tue 7/28

4:55 pm-11:30 pm

1 stop4h 35m

$392

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Wed 6/10

6:00 am-11:37 am

1 stop7h 37m

Tucson

Thu 6/18

2:58 pm-11:58 pm

1 stop7h 00m

$397

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

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 $376 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 April 2026, prices for St. Louis to Tucson flights are approximately 8% cheaper 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 15m

Direct flights

None
The fastest flight from St. Louis to Tucson takes 5h 15m
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 15m 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
8,422 reviews
Search Delta flights
United AirlinesPriceFrom $260Free CancellationRating
7.4
9,607 reviews
Search United Airlines flights
American AirlinesPriceFrom $266Free CancellationRating
7.1
11,625 reviews
Search American Airlines flights
SouthwestPriceFrom $271Free CancellationRating
8.0
4,330 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.

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
Wed 5/20
Wed 5/27
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States