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Find cheap flights from St. Louis to Arizona from $39

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 Arizona departing on 6/5. 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
0 bags
sáb. 6/15
sáb. 6/22

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Best Arizona Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Tucson
Tucson1 stop$286
Flagstaff
Flagstaff1 stop$517
Yuma
Yuma1 stop$716
Las Vegas
Las Vegasnonstop$83

Good to know

Low season

August

High season

March

Cheapest flight

$39
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from St. Louis to Phoenix Sky Harbor Airport

FAQs - booking Arizona flights

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

    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 Arizona.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Arizona 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 Arizona?

    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 Arizona with an airline and back to St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Arizona?

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

See more FAQs

Top tips for finding cheap flights to Arizona

  • Looking for a cheap flight? 25% of our users found tickets from St. Louis to the following destinations at these prices or less: Las Vegas $49 one-way - $118 round-trip; Phoenix $102 one-way - $210 round-trip
  • Morning departure is around 2% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from St. Louis to Arizona

 
Need help choosing which airline to fly with from St. Louis to Arizona? 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
DeltaOverall score based on 10673 reviews
8.2Boarding
7.4Food
8.6Crew
7.9Comfort
8.0Entertainment
Airline reviews

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

4.0 OkayReginald, May 2024MCI - LGA
Read more about Delta reviews

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

The overall flight went well and the aircrew was pleasant.

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

Cathay Pacific seems to be an airline in trouble and on its way out. Lots of broken or poorly functioning things like entertainment screens, seats, and enough well trained staff to handle a full flight. Sad...

The flight crew was exceptionally good. Personal needs were well met. The food choices were very nice.

Excellent. Planes are a little older and could get some refurbishment, but besides that everything was excellent.

While I was in great pain, the seat was sufficiently comfortable to allow me to rest and not be in so much pain.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Seats were very comfortable. Crew were excellent. Food very good.

Flight crew was especially thoughtful and attentive, made sure our seats were comfortable so we could rest on the long flight

I felt thirsty and asked the flight attendent for water, but no one came for more than half an hour.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

The CX617 from HK to BKK was delayed more than 1.5 hours.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

Plane took off without me, my stepdad and a dozen other passengers. It went from an hour delay to boarding in 15 montures without notifying anyone. Names were not called overhead. Now I’m missing a day of work and stuck in Charolette overnight paying for a hotel and Ubers out of pocket

Flight from SBP to DFW 1. They rerouted us through PHX 2. Delayed flight out of SBP for 3 hrs so we missed our connection Downgrade on rerouted flight. Back of the plane, center seats, didn't sit together 4. Return flight out of DFW same exact thing. Delayed, missed connection, Downgrade + they lost our luggage! A complete mess.

after boarding on phx to sjd, crew discovered that one of the megaphones was either out of date or not working. It took 90 minutes to get a replacement and do the "paperwork." That is really unacceptable. Why wasn't the megaphone problem discovered before boarding? Is it part of normal maintenance check? who is responsible for checking. How can paperwork take that long? Fortunately, SJD was final destination for most travelers so very few if any passengers had to miss connections.

Flight From PHX to CVG was on time, very professional staff

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

Flight attendants used to be nice to people. And any flight over 5 hours should have some kind of food other than tiny pretzels and one drink comped.

just overall disappointing, not a treat to travel these days....paying for Main Cabin Extra was not worth it.

Missed our departing flight due to poor baggage drop staff. At the airport with 2 & 1/2 hours to spare and waited in bag check in until 15 minutes prior to gates closing before baggage staff asked us to move to the front of the line. We weren’t the only passengers that missed the flight. Poor organizational operations by Spirit staff. Otherwise , the return trip was fine.

My experience with Spirit was perfect. Did not expect it to be this good

Worst airline experience ever. Lost my IPad going thru security. Charged for my dog carriage at the gate not at ticket counter. Gave away my seat 6D. Expressed I wanted my seat back after charging me 99 for dog carriage. Should have thrown it out. Had a 16 yr old Yorkie heading to Boston after being a snowbird. Seats small. Very bad experience. Still don’t have my IPad. Horrible

My mother was HARASSED AND ACCOSTED by the gate agent for her bag. I pre purchased the bag fee and the gate agent made my 78 year old mother board, deplane, re pay for her bag fee and board again. The gate agent made my mother pick up her own bag and REFUSED to help her, she is an older woman who wasn’t bothering anyone on a flight that had maybe 30’total passengers. I am going to sue this airlines for their HORRIBLE customer service and treatment of my mother, and all this occurred the day after Mother’s Day!!!

The boarding gate was moved so many times that I missed my flight. No attendants would help me. The wrong gate was even on my boarding pass. I had to repurchase everything. I’ll never fly again. Really a terrible day as I had planned to see a former student who is dying in Louisville Never ever will I forget that day. Your airline is totally uncaring.

Horrible, first flight delayed. They switched my connecting flight while I was en route and even though I was originally supposed to be on the flight going back home to boston, refused to let me board and told me I would have to wait for next flight that was 14 hours later. Ended up renting a car and driving 6.5 hours back home. Still getting messages about flight and it is now showing that the other flight they put me on is now canceled and I would have to wait 24 hours for the next one. I will never book with spirit again

Hated it I would not use Kayak or Spirit ever again.

They stuck us with multiple extra fees. I will never fly spirit again

Arrived 3 hours early and never made it past baggage drop

Flight delayed then canceled! I will NEVER fly Spirit Airlines again and will tell all my friends!

Book cheap flights from St. Louis to Arizona

Recent round-trip flight deals

6/12mié.
nonstopFrontier
3h 18mSTL-PHX
6/19mié.
nonstopFrontier
2h 59mPHX-STL
$78
5/22mié.
nonstopFrontier
3h 48mSTL-LAS
5/24vie.
nonstopFrontier
3h 12mLAS-STL
$83
7/10mié.
nonstopSpirit Airlines
3h 27mSTL-LAS
7/17mié.
nonstopSpirit Airlines
3h 16mLAS-STL
$84
6/11mar.
1 stopSpirit Airlines
11h 45mSTL-LAS
6/14vie.
nonstopSpirit Airlines
3h 16mLAS-STL
$112
6/4mar.
nonstopAmerican Airlines
3h 21mSTL-PHX
6/11mar.
nonstopAmerican Airlines
2h 57mPHX-STL
$131
8/2vie.
nonstopAmerican Airlines
3h 14mSTL-PHX
8/4dom.
nonstopAmerican Airlines
3h 00mPHX-STL
$181
6/6jue.
1 stopDelta
6h 23mSTL-PHX
6/11mar.
1 stopDelta
5h 21mPHX-STL
$216
6/10lun.
1 stopDelta
6h 18mSTL-PHX
6/14vie.
1 stopDelta
7h 55mPHX-STL
$253
8/25dom.
1 stopUnited Airlines
5h 46mSTL-TUS
8/27mar.
1 stopUnited Airlines
5h 58mTUS-STL
$316
9/24mar.
2 stopsUnited Airlines
15h 52mSTL-PHX
10/3jue.
1 stopUnited Airlines
8h 12mPHX-STL
$411

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Recent one-way flight deals

6/5mié.
nonstopFrontier
3h 18mSTL-PHX
$39
6/26mié.
nonstopFrontier
3h 18mSTL-PHX
$40
10/3jue.
nonstopAmerican Airlines
3h 17mSTL-PHX
$66
5/25sáb.
1 stopSpirit Airlines
13h 03mSTL-LAS
$70
6/5mié.
1 stopSpirit Airlines
23h 05mSTL-PHX
$73
6/7vie.
nonstopAmerican Airlines
3h 20mSTL-PHX
$91
6/7vie.
1 stopDelta
8h 55mSTL-PHX
$108
8/23vie.
1 stopDelta
6h 42mSTL-TUS
$163
6/26mié.
2 stopsUnited Airlines
12h 11mSTL-LAS
$256
6/8sáb.
2 stopsUnited Airlines
12h 21mSTL-LAS
$263

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Last minute flights from St. Louis to Arizona

Last minute flight, train and bus deals

5/21mar.
nonstopFrontier
3h 41mSTL-LAS
5/22mié.
nonstopFrontier
3h 12mLAS-STL
$96
5/21mar.
nonstopFrontier
3h 41mSTL-LAS
5/30jue.
nonstopFrontier
3h 12mLAS-STL
$105
5/19dom.
nonstopFrontier
3h 42mSTL-LAS
5/22mié.
nonstopFrontier
3h 12mLAS-STL
$107
5/19dom.
multi-stopDelta
6h 56mSTL-PHX
5/24vie.
multi-stopDelta
5h 15mPHX-STL
$278
5/17vie.
multi-stopDelta
6h 23mSTL-PHX
5/20lun.
multi-stopDelta
5h 15mPHX-STL
$315
5/18sáb.
multi-stopSpirit Airlines
13h 03mSTL-LAS
5/22mié.
multi-stopSpirit Airlines
27h 33mLAS-STL
$347
5/18sáb.
nonstopAmerican Airlines
3h 24mSTL-PHX
5/19dom.
multi-stopAmerican Airlines
6h 54mPHX-STL
$379
5/17vie.
nonstopAmerican Airlines
3h 24mSTL-PHX
5/19dom.
multi-stopAmerican Airlines
6h 54mPHX-STL
$404
5/21mar.
multi-stopUnited Airlines
5h 20mSTL-LAS
5/21mar.
multi-stopUnited Airlines
6h 57mLAS-STL
$528
5/17vie.
multi-stopUnited Airlines
21h 03mSTL-PHX
5/20lun.
multi-stopUnited Airlines
7h 46mPHX-STL
$608

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St. Louis - Arizona Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Arizona - St. Louis

Cabin classes:

$1,163
$3,413
$1,272
$88