TUS - STL

$134 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 6/17. 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

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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Cheap Flights from Tucson to St. Louis

 
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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Tucson to St. Louis.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
4:24 pm - 11:59 pmTUS-STL
5h 35m1 stop
United Airlines Logo
5:20 am - 8:54 amSTL-TUS
5h 34m1 stop
$267United Airlines
Find Deal
Tue, May 27 - Fri, May 30
American Airlines Logo
11:23 am - 7:29 pmTUS-STL
6h 06m1 stop
American Airlines Logo
5:37 am - 11:11 amSTL-TUS
7h 34m2 stops
$272American Airlines
Find Deal
Tue, Jun 3 - Sat, Jun 7
Delta Logo
4:55 pm - 12:59 amTUS-STL
6h 04m1 stop
Delta Logo
3:40 pm - 9:23 pmSTL-TUS
7h 43m1 stop
$293Delta
Find Deal
Fri, May 30 - Mon, Jun 2
United Airlines Logo
4:24 pm - 11:59 pmTUS-STL
5h 35m1 stop
United Airlines Logo
6:30 am - 11:36 amSTL-TUS
7h 06m1 stop
$313United Airlines
Find Deal
Fri, May 30 - Sun, Jun 1
American Airlines Logo
2:56 pm - 11:59 pmTUS-STL
7h 03m1 stop
American Airlines Logo
5:37 am - 11:11 amSTL-TUS
7h 34m2 stops
$318American Airlines
Find Deal
Sat, Jun 7 - Sun, Jun 8
United Airlines Logo
4:24 pm - 11:59 pmTUS-STL
5h 35m1 stop
United Airlines Logo
5:00 am - 12:43 pmSTL-TUS
9h 43m2 stops
$331United Airlines
Find Deal
Tue, May 27 - Fri, May 30
Southwest Logo
10:35 am - 9:10 pmTUS-STL
8h 35m2 stops
Southwest Logo
6:35 pm - 10:20 pmSTL-TUS
5h 45m1 stop
$332Southwest
Find Deal
Tue, Jul 15 - Mon, Jul 21
Southwest Logo
10:35 am - 9:10 pmTUS-STL
8h 35m2 stops
Southwest Logo
4:40 pm - 11:35 pmSTL-TUS
8h 55m2 stops
$337Southwest
Find Deal
Tue, Jul 15 - Mon, Jul 21
Delta Logo
4:55 pm - 12:43 amTUS-STL
5h 48m1 stop
Delta Logo
5:30 pm - 9:52 pmSTL-TUS
6h 22m1 stop
$364Delta
Find Deal
Fri, Jun 13 - Fri, Jun 20
Alaska Airlines Logo
12:06 pm - 8:08 amTUS-STL
18h 02m2 stops
Alaska Airlines Logo
7:32 pm - 2:26 pmSTL-TUS
20h 54m2 stops
$793Alaska Airlines
Find Deal
Fri, Jun 13 - Fri, Jun 20
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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’s the cheapest day of the week to fly from Tucson to St. Louis?

The average price of all round-trip flights from Tucson to St. Louis clicked on KAYAK for each day over the last 12 months.

When flying from Tucson to St. Louis, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Tucson, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

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 January, where tickets cost $332 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $591 and $530 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. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$134
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 29% increase in price.
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 $134 for a one-way ticket and $267 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, oneworld, and Star Alliance are the airline alliances operating flights between Tucson and St. Louis, with oneworld 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 $386 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 $339 and an overall rating of 8.0.

  • 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.

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 4294 reviews
8.0Comfort
8.2Boarding
7.6Entertainment
7.1Food
8.6Crew
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

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

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

Bigger seats. Board back to front! Disembark front to back!

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

Service in first class no longer exists on American Airlines .

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.

My seat was very worn. Otherwise I had an excellent flight

Boarding can be more efficiently done by having the back row passengers board first. This way, the other people do the have to wait for front row passengers to load their luggage in the overhead cabins. Food is simply pathetic for the price I paid. Cleanliness is simply poor; my seat was full of crumps.

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

Information on your arrival and departure airports

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