STL - TUS

$134 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 5/29. 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.
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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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Flights Deals

Cheap Flights from St. Louis to Tucson

 
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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Tucson.
Discover the best prices for you by selecting your travel dates on KAYAK.
American Airlines Logo
7:00 am - 12:39 pmSTL-TUS
7h 39m1 stop
American Airlines Logo
11:23 am - 7:29 pmTUS-STL
6h 06m1 stop
$267American Airlines
Find Deal
Tue, May 20 - Sun, May 25
American Airlines Logo
4:52 pm - 9:46 pmSTL-TUS
6h 54m2 stops
American Airlines Logo
11:23 am - 7:29 pmTUS-STL
6h 06m1 stop
$272American Airlines
Find Deal
Tue, May 20 - Sun, May 25
American Airlines Logo
5:30 am - 10:03 amSTL-TUS
6h 33m1 stop
American Airlines Logo
3:33 pm - 11:19 pmTUS-STL
5h 46m1 stop
$293American Airlines
Find Deal
Thu, Jun 5 - Sat, Jun 14
Delta Logo
6:00 am - 11:45 amSTL-TUS
7h 45m1 stop
Delta Logo
5:00 pm - 12:38 amTUS-STL
5h 38m1 stop
$327Delta
Find Deal
Wed, Jul 9 - Sun, Jul 13
Delta Logo
6:00 am - 11:49 amSTL-TUS
7h 49m1 stop
Delta Logo
1:00 pm - 9:34 pmTUS-STL
6h 34m1 stop
$339Delta
Find Deal
Thu, Jun 12 - Mon, Jun 16
Southwest Logo
4:40 pm - 11:35 pmSTL-TUS
8h 55m2 stops
Southwest Logo
3:00 pm - 12:35 amTUS-STL
7h 35m2 stops
$349Southwest
Find Deal
Fri, Jun 6 - Mon, Jun 9
Frontier Logo
8:15 pm - 11:17 amSTL-TUS
17h 02m1 stop
Frontier Logo
12:06 pm - 9:09 amTUS-STL
19h 03m1 stop
$400Frontier
Find Deal
Wed, May 14 - Sun, May 18
Southwest Logo
5:05 am - 10:35 amSTL-TUS
7h 30m2 stops
Southwest Logo
3:00 pm - 12:35 amTUS-STL
7h 35m2 stops
$413Southwest
Find Deal
Thu, Jun 12 - Mon, Jun 16
United Airlines Logo
1:41 pm - 9:09 pmSTL-TUS
9h 28m2 stops
United Airlines Logo
4:20 pm - 11:52 pmTUS-STL
5h 32m1 stop
$442United Airlines
Find Deal
Tue, May 13 - Wed, May 21
United Airlines Logo
6:30 am - 3:41 pmSTL-TUS
11h 11m2 stops
United Airlines Logo
6:30 am - 4:53 pmTUS-STL
8h 23m1 stop
$444United Airlines
Find Deal
Thu, Jun 5 - Thu, Jun 12
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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.

What’s the cheapest day of the week to fly from St. Louis to Tucson?

The average price of all round-trip flights from St. Louis to Tucson clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Tucson on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from St. Louis to Tucson. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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 August, where tickets cost $306 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $417 and $417 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. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low season

June

High season

March

Cheapest flight

$134
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 10% 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 3 days, the lowest price for a flight from St. Louis to Tucson was $134 for a one-way ticket and $267 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?

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Tucson are Southwest and Delta. With an average price for the route of $387 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 $417 and an overall rating of 8.0.

  • 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.

Top 4 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 4295 reviews
8.6Crew
8.2Boarding
8.0Comfort
7.6Entertainment
7.1Food
Airline reviews

It is southwest seat was ok. Not the most comfortable seat

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

A bit rush for transit. Food and entertainment are not available

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Took off on time and successfully avoided weather that looked to be a problem along the way

Very friendly and efficient and smooth boarding. We were even way early arriving at my destination. Thank you.

The trip was very smooth and they provided great customer service

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

The seats were crammed and the guy in front of me wouldn't stop reclining. If AA is cramming extra rows in, they need to take away the reclining in coach. My knees were smashed for 4 1/2 hours and I was very close to confronting the passenger in front of me.

What, first class and not even a cup of coffee before landing at 5 am in First Class? Really?

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

I paid for what I got which was cheap, I brought my own entertainment. I knew what to expect, so I could be prepared. If you’re flying economy, check in early like me. I have no problems with my flight, was on time, staff were friendly, and overall good experience.

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

Information on your arrival and departure airports

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