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Find cheap flights from St. Louis to Arizona from $37

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 5/22. 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
Thu 6/13
Thu 6/20

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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$306
Flagstaff
Flagstaff1 stop$502
Yuma
Yuma1 stop$716
Las Vegas
Las Vegasnonstop$51

Good to know

Low season

August

High season

March

Cheapest flight

$37
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 Las Vegas

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 20% 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 10706 reviews
7.4Food
7.9Comfort
8.6Crew
8.0Entertainment
8.2Boarding
Airline reviews

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

2.0 MediocreDevan, May 2024AUS - BOS
Read more about Delta reviews

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

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

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.

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!

Absolutely terrible. The boarding process had zero organization. Mobs of people trying to board. People were climbing over my child's stroller with her in it. No families were boarded first. Boarding was delayed with no reasoning or notification that it would be late. We were then stuck on the plane for 45 minutes after landing. Then waited over two hours for our luggage. There was zero communication with the travelers. Never have I experienced such I professionalism and disgrace of others. Extremely disappointed.

For it to have left on time! Instead of two hours early with zero notice

Flight kept delayed from morning to late afternoon so I had to make other arrangements

Book cheap flights from St. Louis to Arizona

Recent round-trip flight deals

6/12Wed
nonstop
3h 27mSTL-LAS
6/19Wed
nonstop
3h 12mLAS-STL
$51
6/12Wed
nonstop
3h 27mSTL-LAS
6/19Wed
nonstop
3h 12mLAS-STL
$52
6/11Tue
1 stopSpirit Airlines
11h 45mSTL-LAS
6/12Wed
nonstopSpirit Airlines
3h 16mLAS-STL
$57
6/10Mon
nonstopSpirit Airlines
3h 26mSTL-LAS
6/12Wed
nonstopSpirit Airlines
3h 16mLAS-STL
$64
6/4Tue
nonstopAmerican Airlines
3h 24mSTL-PHX
6/11Tue
nonstopAmerican Airlines
2h 54mPHX-STL
$131
6/30Sun
nonstopAmerican Airlines
3h 20mSTL-PHX
7/5Fri
nonstopAmerican Airlines
3h 00mPHX-STL
$161
7/9Tue
1 stopDelta
7h 22mSTL-PHX
7/12Fri
1 stopDelta
7h 50mPHX-STL
$216
5/24Fri
1 stopDelta
6h 56mSTL-PHX
6/1Sat
1 stopDelta
5h 59mPHX-STL
$247
9/27Fri
1 stopUnited Airlines
6h 09mSTL-PHX
10/4Fri
1 stopUnited Airlines
8h 12mPHX-STL
$296
8/16Fri
1 stopUnited Airlines
5h 25mSTL-PHX
8/19Mon
2 stopsUnited Airlines
8h 22mPHX-STL
$301

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Recent one-way flight deals

5/22Wed
nonstopFrontier
3h 48mSTL-LAS
$37
5/29Wed
nonstopFrontier
3h 17mSTL-PHX
$39
5/20Mon
nonstopFrontier
3h 48mSTL-LAS
$42
5/20Mon
nonstopSpirit Airlines
3h 33mSTL-LAS
$48
5/31Fri
nonstopSpirit Airlines
3h 33mSTL-LAS
$61
10/3Thu
nonstopAmerican Airlines
3h 17mSTL-PHX
$66
5/26Sun
nonstopAmerican Airlines
3h 21mSTL-PHX
$91
6/1Sat
1 stopDelta
6h 59mSTL-PHX
$108
6/18Tue
2 stopsUnited Airlines
12h 11mSTL-LAS
$253
5/29Wed
2 stopsUnited Airlines
12h 12mSTL-PHX
$273

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Last minute flights from St. Louis to Arizona

Last minute flight, train and bus deals

5/15Wed
nonstopFrontier
3h 43mSTL-LAS
5/22Wed
nonstopFrontier
3h 12mLAS-STL
$106
5/19Sun
nonstopFrontier
3h 42mSTL-LAS
5/22Wed
nonstopFrontier
3h 12mLAS-STL
$109
5/18Sat
multi-stopSpirit Airlines
13h 03mSTL-LAS
5/22Wed
nonstopSpirit Airlines
3h 16mLAS-STL
$130
5/16Thu
nonstopAmerican Airlines
3h 24mSTL-PHX
5/20Mon
nonstopAmerican Airlines
3h 00mPHX-STL
$201
5/18Sat
multi-stopDelta
7h 03mSTL-PHX
5/26Sun
multi-stopDelta
5h 47mPHX-STL
$253
5/16Thu
multi-stopDelta
8h 09mSTL-PHX
5/18Sat
multi-stopDelta
5h 50mPHX-STL
$290
5/18Sat
nonstopAmerican Airlines
3h 24mSTL-PHX
5/26Sun
nonstopAmerican Airlines
3h 00mPHX-STL
$296
5/18Sat
multi-stopSpirit Airlines
26h 12mSTL-PHX
5/21Tue
multi-stopSpirit Airlines
23h 47mPHX-STL
$343
5/17Fri
multi-stopUnited Airlines
21h 03mSTL-PHX
5/19Sun
multi-stopUnited Airlines
4h 41mPHX-STL
$693
5/16Thu
multi-stopUnited Airlines
6h 51mSTL-PHX
5/18Sat
multi-stopUnited Airlines
7h 46mPHX-STL
$703

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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