TUS - STL

$172 Find Cheap Flights from Tucson to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Tucson to St. Louis departing on 5/6. 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 St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Tucson to St. Louis, 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 Tucson to St. Louis, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$343
Overall average: $341
American Airlines
Tue 4/14Tue 4/21
TUS - STL • 1 stop
Cheapest one-way
$172
Typical prices: $162-$185
Delta
Wed 5/6
TUS - STL • 1 stop
Top airlines
Cheapest • from $343 (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 Tucson and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $266 (round-trip)
Shortest trip • 5h 16m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 50% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% 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 St. Louis!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Tucson to St. Louis 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 Tucson to St. Louis

Tue, Apr 14 - Tue, Apr 21
American Airlines Logo
5:05 pm - 11:59 pm
TUS
-
STL
4h 54m
1 stop
American Airlines Logo
5:20 am - 8:59 am
STL
-
TUS
5h 39m
1 stop
$343American Airlines
Tue, Apr 14 - Tue, Apr 21
American Airlines Logo
2:15 pm - 10:59 pm
TUS
-
STL
6h 44m
2 stops
American Airlines Logo
5:21 pm - 11:59 pm
STL
-
TUS
8h 38m
1 stop
$348American Airlines
Wed, Jun 3 - Tue, Jun 9
Southwest Logo
12:45 pm - 11:15 pm
TUS
-
STL
8h 30m
2 stops
Southwest Logo
8:25 am - 2:10 pm
STL
-
TUS
7h 45m
2 stops
$353Southwest
Thu, May 7 - Tue, May 12
Delta Logo
11:04 am - 7:03 pm
TUS
-
STL
5h 59m
1 stop
Delta Logo
2:27 pm - 9:30 pm
STL
-
TUS
9h 03m
1 stop
$355Delta
Mon, Apr 27 - Wed, Apr 29
Southwest Logo
7:30 am - 12:15 am
TUS
-
STL
14h 45m
2 stops
Southwest Logo
5:35 pm - 9:25 pm
STL
-
TUS
5h 50m
1 stop
$366Southwest
Thu, Apr 23 - Thu, Apr 30
American Airlines Logo
3:06 pm - 11:59 pm
TUS
-
STL
6h 53m
1 stop
American Airlines Logo
5:20 am - 8:59 am
STL
-
TUS
5h 39m
1 stop
$367American Airlines
Mon, Apr 27 - Wed, Apr 29
Southwest Logo
7:30 am - 12:15 am
TUS
-
STL
14h 45m
2 stops
Southwest Logo
5:30 am - 11:55 am
STL
-
TUS
8h 25m
2 stops
$371Southwest
Wed, Jul 15 - Wed, Jul 29
Southwest Logo
5:40 am - 12:20 pm
TUS
-
STL
4h 40m
1 stop
Southwest Logo
5:35 am - 9:10 am
STL
-
TUS
5h 35m
1 stop
$387Southwest
Sat, Apr 11 - Tue, Apr 14
United Airlines Logo
7:10 pm - 5:50 am
TUS
-
STL
8h 40m
1 stop
United Airlines Logo
11:15 am - 8:18 pm
STL
-
TUS
11h 03m
2 stops
$395United Airlines
Wed, Jul 15 - Wed, Jul 29
Southwest Logo
5:40 am - 5:45 pm
TUS
-
STL
10h 05m
2 stops
Southwest Logo
6:00 am - 9:15 am
STL
-
TUS
5h 15m
1 stop
$398Southwest
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Tucson to St. Louis, 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 Tucson to St. Louis is February, where tickets cost $287 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $577 and $449 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Tucson to St. Louis, 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 Tucson to St. Louis, you should book around 4 weeks before departure, which saves you about 50% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$172
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Tucson to St. Louis

When to book flights from Tucson to St. Louis

Are your dates flexible? Find out the best times to travel from Tucson to St. Louis 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 Tucson to St. Louis

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

    In the last 3 days, the lowest price for a flight from Tucson to St. Louis was $172 for a one-way ticket and $343 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    When flying out of Tucson you will be using Tucson. You will be landing at St. Louis, also known as Lambert-St Louis.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Tucson to St. Louis are Southwest and Delta. With an average price for the route of $412 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $356 and an overall rating of 7.9.

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

    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 Tucson to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Tucson 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 Tucson to St. Louis?

    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 St. Louis with an airline and back to Tucson with another airline. Booking your flights between Tucson and STL 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 Tucson to St. Louis?

    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 St. Louis from Tucson up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Tucson to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Tucson to St. Louis. 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 Tucson to St. Louis? 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 4325 reviews
8.6Crew
7.5Entertainment
8.1Boarding
8.0Comfort
7.0Food
Airline reviews

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

2.0 MediocreBeth, Mar 2026
MDW - PIT
Read more Southwest reviews

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

Boarding was easy. The seats are small and fairly uncomfortable

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

We had a 5 hour delay on the tarmac in Baltimore

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

I have not flown Southwest in awhile and had a very pleasant experience. From ticketing to boarding to the flight. The flight left on time and landed ahead of schedule. It won't be so long next time!!

Great plane, great attendants,great flight crew,on time. Wonderful flight home..

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

Mechanical Delay of over an hour with multiple gate changes. Entertainment system down for rejuvenation.

I had a flight cancel and had it rerouted. When the rerouted they put me at a window seat instead of an isle. It was hard sitting by the window because the couple with masks on were making out. I get motion sickness which is why I need to have the isle seat.

NEVER MADE THE FLIGHT BECAUSE DELTA SAID THEY CAN NOT

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The baggage claim experience was poor. The plane crew and the AA app said that checked baggage in CLT would be at carousel 7 but the sign at Baggage Claim said carousel 1. The carousel 1 sign had the correct flight # listed above the belt. But the luggage never came. I went to an AA baggage claim office after about 1 hour and the clerk directed me to another AA room that was poorly marked, with a closed door and no obvious way to know what to do. Finally someone opened the door and my bag was inside. The clerk was totally unable to explain why.

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Lack of gluten free options in food service. I have Celiac disease and it appears you no longer offer special meals for people with dietary restrictions. I am a frequent flyer traveling into and out of Omaha airport. I have noticed over the course of several months that although our flight typically arrives ahead of schedule (awesome job AA!) - we typically sit on the runway for several minutes waiting for the ground crew to get in place. Not sure if it is a ground crew issue or a gate availability issue (due to construction at this airport). Seems to be more of a ground crew being on time issue.

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Amazing I love American. I’ll never fly anyone else if I can help it.

Experience was good. We were delayed in leaving by 15 mins because the flight was waiting on a family that was late in getting to the gate. Food and drink options were as expected. I highly recommend checking in ahead of time using the airline’s app so that it’s quicker to get your luggage tags as soon as you arrive at the terminal. No more waiting in long lines!

The captain brought my 6 year old son into the cockpit and allowed him to ask questions, sit in the captain’s chair and talk about all the gears and levers. Made the trip very special for him.

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

Information on your arrival and departure airports