STL - TUS

$184 Find Cheap Flights from St. Louis to Tucson

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Tucson departing on 6/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Tucson

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Tucson, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Tucson, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$367
Typical prices: $494-$388
Delta
qua 7/15ter 7/21
STL - TUS • 1 stop
Cheapest one-way
$184
Typical prices: $133-$298
American Airlines
ter 6/30
STL - TUS • 1 stop
Top airlines
Cheapest • from $367 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Tucson. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $331 (round-trip)
Shortest trip • 5h 28m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Tucson!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Tucson (STL-TUS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Tucson that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Tucson

qua, jul 15 - ter, jul 21
Delta Logo
3:58 pm - 9:49 pm
STL
-
TUS
7h 51m
1 stop
Delta Logo
1:49 pm - 10:15 pm
TUS
-
STL
6h 26m
1 stop
$367Delta
qua, jul 1 - ter, jul 7
Southwest Logo
5:35 am - 9:10 am
STL
-
TUS
5h 35m
1 stop
Southwest Logo
5:15 am - 3:10 pm
TUS
-
STL
7h 55m
2 stops
$372Southwest
qua, jul 29 - ter, ago 4
American Airlines Logo
5:58 pm - 10:43 pm
STL
-
TUS
6h 45m
1 stop
American Airlines Logo
10:16 am - 7:53 pm
TUS
-
STL
7h 37m
2 stops
$382American Airlines
qua, jul 1 - ter, jul 7
Southwest Logo
8:30 am - 6:05 pm
STL
-
TUS
11h 35m
2 stops
Southwest Logo
5:15 am - 3:10 pm
TUS
-
STL
7h 55m
2 stops
$383Southwest
qua, jul 1 - ter, jul 7
American Airlines Logo
8:00 am - 11:05 am
STL
-
TUS
5h 05m
1 stop
American Airlines Logo
10:16 am - 7:53 pm
TUS
-
STL
7h 37m
2 stops
$384American Airlines
qua, jul 15 - ter, jul 21
American Airlines Logo
5:32 am - 11:07 am
STL
-
TUS
7h 35m
2 stops
American Airlines Logo
3:57 pm - 11:58 pm
TUS
-
STL
6h 01m
1 stop
$386American Airlines
qua, jul 15 - ter, jul 21
American Airlines Logo
5:32 am - 11:07 am
STL
-
TUS
7h 35m
2 stops
American Airlines Logo
3:57 pm - 11:58 pm
TUS
-
STL
6h 01m
1 stop
$388American Airlines
qui, ago 6 - qua, ago 19
American Airlines Logo
8:00 am - 1:07 pm
STL
-
TUS
7h 07m
1 stop
American Airlines Logo
10:25 am - 5:37 pm
TUS
-
STL
5h 12m
1 stop
$390American Airlines
qua, jul 15 - ter, jul 21
American Airlines Logo
5:32 am - 11:07 am
STL
-
TUS
7h 35m
2 stops
American Airlines Logo
3:57 pm - 11:58 pm
TUS
-
STL
6h 01m
1 stop
$394American Airlines
qui, ago 6 - qua, ago 19
Southwest Logo
6:25 pm - 10:20 pm
STL
-
TUS
5h 55m
1 stop
Southwest Logo
7:25 am - 5:55 pm
TUS
-
STL
8h 30m
2 stops
$395Southwest
Booking Insights

KAYAK's insights & trends for St. Louis to Tucson flights

Get data-powered insights and trends into flights from St. Louis to Tucson to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Tucson?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Tucson departing in July.

What is the cheapest month to fly from St. Louis to Tucson?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Tucson, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Tucson is October, where tickets cost $289 (return) on average. On the other hand, the most expensive months are February and June, where the average cost of round-trip tickets is $488 and $486 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Tucson, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Tucson, you should book around 3 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$184
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from St. Louis to Tucson

When to book flights from St. Louis to Tucson

Are your dates flexible? Find out the best times to travel from St. Louis to Tucson based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Tucson

  • What is the cheapest flight from St. Louis to Tucson?

    In the last 5 days, the lowest price for a flight from St. Louis to Tucson was $184 for a one-way ticket and $367 for a round-trip.

  • Do I need a passport to fly between St. Louis and Tucson?

    No

  • Which airports will I be using when flying from St. Louis to Tucson?

    St. Louis airport is called Lambert-St Louis and the only airport in Tucson is Tucson.

  • Which aircraft models fly most regularly from St. Louis to Tucson?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Tucson?

    Star Alliance, and oneworld are the airline alliances operating flights between St. Louis and Tucson, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Tucson, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Tucson are Southwest and United Airlines. With an average price for the route of $436 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $486 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Tucson?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Tucson.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Tucson?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Tucson from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Tucson?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Tucson with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and TUS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Tucson?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Tucson from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from St. Louis to Tucson

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Tucson. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Tucson? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4258 reviews
8.0Comfort
7.0Food
8.1Boarding
8.6Crew
7.5Entertainment
Airline reviews

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

10.0 ExcellentAnonymous, Jun 2026
OKC - LAS
Read more Southwest reviews

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Movies on my phone are great. It would be nice to have a gluten free snack option.

Seat bottom cushions are not good. I’m 165# & they hurt my butt. Plenty of legroom.

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

My flight got delayed a total of five times. And the boarding gate changed four times. most of the time the platform was not up-to-date with the changes taking place. The most discouraging part of the entire trip by far.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

The seats need better cushioning for a nearly 5-hour flight, it was a bit uncomfortable. I'm glad American has free wi-fi but there were was a bout 30 minutes in the middle of the flight when there was no connection which was frustrating.

My original flight got delayed day of so I had to rebook it from one layover to two layovers. The flight also left earlier which was a slight inconvenience but manageable. Then my first connection flight got delayed 3 separate times for a total of 2 hours delayed, causing me to miss my second connection flight back to Santa Barbara. Now, because of this missed flight, I am missing my college classes that I pay for.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Everything you need to know for your flight from St. Louis to Tucson

Information on your arrival and departure airports