STL - TUS

$174 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 5/5. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$347
Typical prices: $466-$341
Delta
Wed 5/27Tue 6/2
STL - TUS • 1 stop
Cheapest one-way
$174
Typical prices: $141-$331
American Airlines
Tue 5/5
STL - TUS • 1 stop
Top airlines
Cheapest • from $347 (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 $297 (round-trip)
Shortest trip • 5h 24m (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 48% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% 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

Wed, May 27 - Tue, Jun 2
Delta Logo
7:05 am - 12:15 pm
STL
-
TUS
7h 10m
1 stop
Delta Logo
4:52 pm - 12:30 am
TUS
-
STL
5h 38m
1 stop
$347Delta
Tue, May 12 - Tue, May 19
Southwest Logo
5:30 am - 1:40 pm
STL
-
TUS
10h 10m
2 stops
Southwest Logo
12:45 pm - 10:00 pm
TUS
-
STL
7h 15m
1 stop
$352Southwest
Wed, May 27 - Thu, Jun 4
Delta Logo
6:00 am - 12:15 pm
STL
-
TUS
8h 15m
1 stop
Delta Logo
4:52 pm - 12:30 am
TUS
-
STL
5h 38m
1 stop
$357Delta
Mon, May 4 - Tue, May 12
American Airlines Logo
6:11 pm - 10:55 pm
STL
-
TUS
6h 44m
1 stop
American Airlines Logo
2:15 pm - 10:59 pm
TUS
-
STL
6h 44m
2 stops
$362American Airlines
Tue, May 19 - Sun, May 24
Delta Logo
2:27 pm - 9:30 pm
STL
-
TUS
9h 03m
1 stop
Delta Logo
1:42 pm - 11:59 pm
TUS
-
STL
8h 17m
1 stop
$367Delta
Sun, May 24 - Thu, Jun 4
Delta Logo
6:00 am - 12:32 pm
STL
-
TUS
8h 32m
1 stop
Delta Logo
4:52 pm - 12:30 am
TUS
-
STL
5h 38m
1 stop
$377Delta
Thu, May 7 - Mon, May 11
Southwest Logo
6:05 am - 11:20 am
STL
-
TUS
7h 15m
1 stop
Southwest Logo
7:30 am - 12:15 am
TUS
-
STL
14h 45m
2 stops
$378Southwest
Sun, May 24 - Fri, May 29
Delta Logo
6:00 am - 12:32 pm
STL
-
TUS
8h 32m
1 stop
Delta Logo
1:25 pm - 11:59 pm
TUS
-
STL
8h 34m
1 stop
$387Delta
Thu, May 14 - Tue, May 19
American Airlines Logo
5:20 am - 8:59 am
STL
-
TUS
5h 39m
1 stop
American Airlines Logo
3:06 pm - 12:02 am
TUS
-
STL
6h 56m
1 stop
$395American Airlines
Fri, May 22 - Wed, Jun 3
Delta Logo
5:20 pm - 9:44 pm
STL
-
TUS
6h 24m
1 stop
Delta Logo
4:52 pm - 12:30 am
TUS
-
STL
5h 38m
1 stop
$397Delta
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 May.

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 April, where the average cost of round-trip tickets is $488 and $414 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 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$174
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 1% lower on average.
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 $174 for a one-way ticket and $347 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 $423 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 $317 and an overall rating of 7.9.

  • 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 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 4331 reviews
7.0Food
8.1Boarding
8.6Crew
7.5Entertainment
8.0Comfort
Airline reviews

The new boarding process was easy and straightforward. Very pleasant.

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

The new boarding process was easy and straightforward. Very pleasant.

The flight was okay. The pilots did an amazing job and kept us updated on the flight. The flight attendants were okay. They found time to be chatty with each other rather than focus on the guests. One of the attendants was a little less warm when asking about my bag I had on my lap that I was using during latter part of the mid- flight. Mind you, it was not the departure descent. I’m respectful to each and every attendant, it was the tone in her voice reminding me to place my carryon bag on the floor. I hope to have a better experience next time.

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

It was as expected and I was grateful for the wheel chair help and ease of use.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

The new seat assignment thing is wierd. If you don’t pay for a seat they always assign you a middle seat regardless of how many people are on the flight. Idk… the new company that bought Southwest is trying to make it more profitable, but I’m just not seeing it. The flight attendants aren’t having as much fun anymore. It just feels like the airline is slowly dying. IMO. We shall see if Southwest is the next Toy’s R Us.

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Communication about the delayed flight was poor. We were told to move gates three times but that was bad information. We went from gate 128 to gate 126 and then to gate 123 and back to gate 126. Communication about the delay was bad. Ended up being 1 1/2 hour late getting home.

Plane was late. Zero service for 2+ hour flight and it was not that bumpy.

The tray table was broken and the food was terrible.

The gentleman at the gate I think his name is RIE was exceptional

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

No entertainment. Plane was so small had to pink tag a carry on ive used for 20 years easily on board. The fact the flight got in at midnight, had to wait for crew in fort wayne to allow the plane to approach the gate, THEN had to wait for bag on jet bridge made experience irritating at best.

Crew was great. Near on time departure and early arrival. Snacks are always meh. Not a fan of the "pay for everything including miles " proposal unless base flight rate going to be 100 bucks.

Would have been better if there was a nonstop flight from Tampa to Norfolk or Tampa to New Port News.

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

The flight was smooth, the crew was great but the plane was quite old

Everything was great until I lost my water bottle and they can’t seem to locate it. I know I left it on the plane though.

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Overall flight was ok. Flight attendant was receptive to assisting passengers with tight connections.

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

This was the first flight in the morning. We boarded fine. The cabin door was closed and we were ready to go. We were notified by the Captain that ATC issued and ground stop for 40 minutes. So, without even pushing back from the gate, we were already 40 minutes late. We actually were released to push-back and taxi at 30 minutes. But, some passengers had tight connections and were not going to make their connections. Some passengers asked about the delay and the effect on the connections and were told by the cabin attendant that all flights will be delayed and so they should be OK. However, that was not true. My connecting flight was on time and I arrived at IAH with 21 minutes to make my connection. I did and I'm happy about that, but the flight crew should not have given assurances to the passengers who might have missed their connections.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

On time flight, good communication about boarding, lines didn't form unnecessarily for boarding before their group was announced (kept aisles clear), friendly flight attendants and service

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

I didn't go from Reno to Phoenix I ended up going from Reno to Dallas to Tucson because my flight rebooked because my Amtrak was late I tried notifying you guys I also don't know what you ask me about my flight because you guys didn't book my flight

The flight attendant was friendly and efficient. The temperature was kept nice and cool. The plane was nice, but filthy. There were visible spills on my tray table. The gate agent was somewhat rude with her announcements and in speaking with other customers.

Great experience. Good dinner and service. FA's were very nice and attentive.

Mostly good. The WiFi wasn’t working so that was not great.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

I like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

The flight was fine, once we got underway. It was more than hour delayed

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

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

Information on your arrival and departure airports