TUS - STL

$178 Find Cheap Flights from Tucson to St. Louis - Compare and Save

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 9/12. 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

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Everything you should know

Cheapest round-trip
$355
Typical prices: $270-$472
American Airlines
Tue 9/29Tue 10/6
TUS - STL • 1 stop
Cheapest one-way
$177
Typical prices: $141-$249
American Airlines
Sat 9/12
TUS - STL • 1 stop
Top airlines
Cheapest • from $355 (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 $396 (round-trip)
Shortest trip • 5h 17m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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, Sep 29 - Tue, Oct 6
American Airlines Logo
2:04 pm - 8:52 pm
TUS
-
STL
4h 48m
1 stop
American Airlines Logo
7:10 pm - 11:26 pm
STL
-
TUS
6h 16m
1 stop
$355American Airlines
Thu, Aug 27 - Thu, Sep 3
American Airlines Logo
5:00 am - 12:15 pm
TUS
-
STL
5h 15m
1 stop
American Airlines Logo
10:16 am - 3:07 pm
STL
-
TUS
6h 51m
1 stop
$355American Airlines
Wed, Sep 30 - Mon, Oct 5
Southwest Logo
4:00 pm - 10:40 pm
TUS
-
STL
4h 40m
1 stop
Southwest Logo
6:05 am - 9:35 am
STL
-
TUS
5h 30m
1 stop
$355Southwest
Thu, Aug 20 - Wed, Aug 26
American Airlines Logo
3:58 pm - 11:42 pm
TUS
-
STL
5h 44m
1 stop
American Airlines Logo
12:45 pm - 5:47 pm
STL
-
TUS
7h 02m
1 stop
$355American Airlines
Wed, Sep 16 - Sat, Sep 26
Southwest Logo
4:00 pm - 10:40 pm
TUS
-
STL
4h 40m
1 stop
Southwest Logo
7:10 am - 12:40 pm
STL
-
TUS
7h 30m
2 stops
$360Southwest
Wed, Aug 26 - Wed, Sep 2
United Airlines Logo
5:30 am - 12:40 pm
TUS
-
STL
5h 10m
1 stop
United Airlines Logo
12:59 pm - 9:14 pm
STL
-
TUS
10h 15m
2 stops
$360United Airlines
Wed, Sep 30 - Mon, Oct 5
United Airlines Logo
9:45 am - 9:21 pm
TUS
-
STL
9h 36m
2 stops
United Airlines Logo
5:10 am - 8:43 am
STL
-
TUS
5h 33m
1 stop
$360United Airlines
Sat, Aug 22 - Sat, Aug 29
Southwest Logo
10:40 am - 6:25 pm
TUS
-
STL
5h 45m
1 stop
Southwest Logo
7:10 am - 12:40 pm
STL
-
TUS
7h 30m
2 stops
$360Southwest
Fri, Sep 4 - Mon, Sep 7
Delta Logo
4:31 pm - 12:41 am
TUS
-
STL
6h 10m
1 stop
Delta Logo
3:39 pm - 9:41 pm
STL
-
TUS
8h 02m
1 stop
$388Delta
Fri, Oct 9 - Tue, Oct 13
Delta Logo
1:26 pm - 11:54 pm
TUS
-
STL
8h 28m
1 stop
Delta Logo
6:00 am - 12:16 pm
STL
-
TUS
8h 16m
1 stop
$388Delta
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 April, where the average cost of round-trip tickets is $551 and $542 respectively.

Good to know

Low season

January

Cheapest flight

$178
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 25% 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 5 days, the lowest price for a flight from Tucson to St. Louis was $178 for a one-way ticket and $355 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?

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

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

    The two airlines most popular with KAYAK users for flights from Tucson to St. Louis are Southwest and United Airlines. With an average price for the route of $476 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 $406 and an overall rating of 7.4.

  • 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 3 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 4228 reviews
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

I have roller bag with food and medication told me I couldn't bring on my 2nd flight today. 15 years flying with SW never an issue with that bag.

2.0 MediocreStuart, Mar 2026
HOU - STL
Read more Southwest reviews

I have roller bag with food and medication told me I couldn't bring on my 2nd flight today. 15 years flying with SW never an issue with that bag.

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!!

Everything went smoothly and we even arrived a little bit early.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

Southwest's seats are the least comfortable I have ever sat in.

For my birthday trip this was my second time ever flying, this trip was the best.

Crew was great flight was great baggage claim was a failure. It took over 1 hour for bags to arrive. Poor communication poor effort when I spoke to the supervisor about the delay

Everything was great except the food. The pretzels are really crappy.

I had a front row middle. I am not a big person and I barely fit in between that seat! No place to put my arms, even though the guys on each side were not taking over the arm rests. It felt like a frontier flight (if that tells you everything )

Overall is was a pretty good flight. However we were 15 mins late taking off and no one told us anything. We were all in our seats just sitting there for 15mins and all the sudden the pilot stayed we are leaving now. I think they should have at least said something after our take off time passed. Everyone was wondering what was going on. I will say the pilot did increase the speed of the plane so we arrived in time. So we weren't late.

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airport terminal was outdated, flight was on a small jet with no wifi

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Tired of being nickel and dimed for every little thing, especially carry-on luggage.

If there is an hour delay, and only one announcement is made regarding why, “a dirty plane” and “we are waiting for the Captain to board”and the screen keeps stating “on time” , and 100 people risk missing connections- who are then told to rent cars, run fast, or get a hotel room… well, that’s poorly managed by a team with no real training. Communicate more and better.

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

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

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

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

Improvements in communication and empathy are absolutely necessary for American Airlines staff (top down). It’s like they are numb to the needs of their customers.

I like the speed of boarding and deplaning and the fact that everything was on time. The crew (attendants) were probably quite new and did not begin the in cabin service until 30 min before landing even though there was little to no air turbulence for the last 1.5 hours of the flight. It made for a mad scramble at the end to get trash collected and carts stowed before touch down.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

I did like the employee's, they are very friendly and all smiled most of the time, Overall, from checking in bags to getting on plane, not enough employees to be able to get all on the plane, therefore I was not able to get on the plane, due to no one wea there for me to check in my bag, so I decided to go thru the security point and by the time they were done with my bags, I was told that my bag cannot be checked in, and then found out that the lady that does the check in was boarding the customers onto the plane, she said that she was going back and fourth, there for was not able to get on the plane, which changed all my flights by the time I got to Dallas, I was on standby 3 times, and wasn't sure about being able to get on the fourth plane, so ended up buying another plane ticket, so I could make my destination on time.

Not sure about entertainment as I didn't use any, so maybe there should be an NA option on this survey. Otherwise everything was just as it should be. Of course I wish planes were more comfortable and had seats that would tilt back further.

American Airlines “Randy” questioned why I needed preboarding and denied my request for same. Then Randy attempted to berate me when I boarded with my group. I was seated in an exit roll with a young man with a disability that exhibited difficulty controlling and settling himself. But Tandy questioned my disability. The flight was horrible. It was overpacked.

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

Information on your arrival and departure airports