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PHX - STL

$59 Find cheap flights from Phoenix 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 Phoenix to St. Louis departing on 7/20. 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
Tue 7/2
Tue 7/9

Search 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 Phoenix 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 Phoenix to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 41,909,192 times on KAYAK, and here is why:

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Cheap flight deals from Phoenix to St. Louis (PHX-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:06 pm - 9:00 pmPHX-STL
2h 54mnonstop
9:55 pm - 11:04 pmSTL-PHX
3h 09mnonstop
$118Frontier
Find Deal
Sat, Jun 29 - Sat, Jul 6
5:08 pm - 10:07 pmPHX-STL
2h 59mnonstop
12:46 pm - 1:55 pmSTL-PHX
3h 09mnonstop
$125Frontier
Find Deal
Wed, Jul 3 - Fri, Jul 5
6:56 pm - 11:50 pmPHX-STL
2h 54mnonstop
7:35 am - 8:55 amSTL-PHX
3h 20mnonstop
$131American Airlines
Find Deal
Sat, Jun 15 - Wed, Jun 19
6:56 pm - 11:50 pmPHX-STL
2h 54mnonstop
7:35 am - 8:55 amSTL-PHX
3h 20mnonstop
$156American Airlines
Find Deal
Sun, Jun 16 - Sat, Jun 22
11:25 am - 3:41 pmPHX-STL
26h 16m1 stop
8:00 am - 10:32 amSTL-PHX
28h 32m1 stop
$157Spirit Airlines
Find Deal
Fri, Sep 6 - Tue, Sep 10
9:16 pm - 3:06 pmPHX-STL
15h 50m1 stop
4:02 pm - 9:25 pmSTL-PHX
7h 23m1 stop
$195Spirit Airlines
Find Deal
Tue, Jul 16 - Mon, Jul 22
12:43 am - 10:38 amPHX-STL
7h 55m1 stop
7:55 am - 12:15 pmSTL-PHX
6h 20m1 stop
$216Delta
Find Deal
Mon, Jul 15 - Fri, Jul 19
12:43 am - 10:38 amPHX-STL
7h 55m1 stop
6:30 pm - 11:52 pmSTL-PHX
7h 22m1 stop
$253Delta
Find Deal
Fri, Jul 19 - Tue, Jul 23
11:25 pm - 10:08 amPHX-STL
8h 43m1 stop
4:45 pm - 9:50 pmSTL-PHX
7h 05m1 stop
$259United Airlines
Find Deal
Sat, Jun 15 - Wed, Jun 19
9:42 am - 10:17 pmPHX-STL
10h 35m2 stops
6:20 am - 10:50 amSTL-PHX
6h 30m1 stop
$291United Airlines
Find Deal
Tue, Jul 2 - Wed, Jul 3

Flights from Phoenix to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from Phoenix 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 Phoenix to St. Louis?

The average price of all flights from Phoenix Sky Harbor Intl Airport to St. Louis clicked on KAYAK for each day over the last 12 months.
For Phoenix to St. Louis, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from St. Louis back to Phoenix, the best deals are generally found on Tuesday, with Thursday being the most expensive.

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Phoenix Sky Harbor Intl Airport 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 Phoenix Sky Harbor Intl Airport to St. Louis is May, where tickets cost $251 on average. On the other hand, the most expensive months are December and October, where the average cost of tickets is $415 and $398 respectively.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport to St. Louis?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Phoenix Sky Harbor Intl Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Phoenix Sky Harbor Intl Airport to St. Louis, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 90 days before departure.

Which airlines provide the cheapest flights from Phoenix to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at $59. KAYAK users also found Phoenix to St. Louis round-trip flights on Frontier from $118 and on American Airlines from $131.

Which airlines fly most frequently between Phoenix and St. Louis?

In normal times, Southwest flies from Phoenix to St. Louis up to 5 times per day, American Airlines up to 2 times per day, and Frontier 1 time per day.

Which airlines fly non-stop between Phoenix Sky Harbor Intl Airport and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Phoenix Sky Harbor Intl Airport to St. Louis.
There are 3 airlines that fly nonstop from Phoenix Sky Harbor Intl Airport to St. Louis. They are: American Airlines, Frontier and Southwest. The cheapest price of all airlines flying this route was found with Frontier at $78 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between Phoenix Sky Harbor Intl Airport and St. Louis per day?

Each day, there are between 6 and 12 nonstop flights that take off from Phoenix Sky Harbor Intl Airport and land in St. Louis, with an average flight time of 2h 54m. The most common departure time is 5:00 pm and most flights take off in the morning. Each week, there are 59 flights. The most frequent day of departure is Wednesday, when 20% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Phoenix Sky Harbor Intl Airport and St. Louis?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are First, Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Phoenix to St. Louis take?

Nonstop flights from Phoenix generally make it to St. Louis in 2h 54m. The flying distance between the two cities is 1,258 miles.

What’s the earliest departure time from Phoenix to St. Louis?

Early birds can take the earliest flight from Phoenix Sky Harbor Intl Airport at 12:07 am and will be landing in St. Louis at 5:09 am.

What’s the latest departure time from Phoenix to St. Louis?

If you prefer to fly at night, the latest flight from Phoenix Sky Harbor Intl Airport to St. Louis jets off at 8:10 pm and lands at 1:05 am.

Good to know

Low season

January

High season

May

Cheapest flight

$59
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 29% lower on average.
Flight from Phoenix to St. Louis

When to book flights from Phoenix to St. Louis

Are your dates flexible? Find out the best times to travel from Phoenix 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 Phoenix to St. Louis flights

  • Where can passengers sleep at Lambert International Airport?

    Seating with armrests is available in several locations across the airport, most of which are in Terminal 2 and Concourse C. It is recommended by reviewers that you bring a sleeping bag, travel blanket, or additional layers of clothing with you if you want to sleep at this airport since it is believed to be very chilly.

  • Are there any kid-friendly amenities at Lambert International Airport?

    Near gate C3 at STL is a play area designated specifically for children. This is an educational play exhibit with a transportation-based theme that has a child-sized facsimile of a light rail train and a MetroLink train as well as a child-sized airplane and air traffic control tower.

  • How can I get to downtown St. Louis from STL airport?

    If you are traveling downtown, using Metrolink is an option that is not only speedy but also affordable and easy. The St. Louis International Airport (STL) is about 15 miles from the city's central business district. It takes around 19min to complete.

  • How do I get from downtown Phoenix to PHX airport?

    No rail can take passengers directly from downtown Phoenix to the terminal building at the Phoenix airport. To begin, you will need to ride a Valley Metro Rail train to the rail station at 44th Street and Washington and then transfer to the free PHX Sky Train® to go to Terminal 3 or 4. The entire amount of time spent traveling is around half an hour.

  • What is the cheapest flight from Phoenix Sky Harbor Intl Airport to St. Louis?

    In the last 3 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to St. Louis was $59 for a one-way ticket and $118 for a round-trip.

  • Do I need a passport to fly between Phoenix and St. Louis?

    No, a passport isn't needed to fly from Phoenix to St. Louis. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Phoenix to St. Louis?

    On your way to St. Louis, you’ll fly out from Phoenix Sky Harbor Intl. You’ll be landing at Lambert-St Louis.

  • Which airlines offer Wi-Fi service onboard planes from Phoenix to St. Louis?

    American Airlines, JetBlue, and Delta offer inflight Wi-Fi service on the Phoenix to St. Louis flight route.

  • Which aircraft models fly most regularly from Phoenix to St. Louis?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Phoenix to St. Louis flight route.

  • Which airline alliances offer flights from Phoenix to St. Louis?

    oneworld is the only airline alliance operating flights between Phoenix and St. Louis.

  • On which days can I fly direct from Phoenix to St. Louis?

    There are nonstop flights from Phoenix to St. Louis on a daily basis.

  • Which is the best airline for flights from Phoenix to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Phoenix to St. Louis are Delta and United Airlines. With an average price for the route of $417 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $505 and an overall rating of 7.4.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Phoenix 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 Phoenix 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 Phoenix with another airline. Booking your flights between Phoenix 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 Phoenix 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 Phoenix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Phoenix Sky Harbor Intl Airport to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $65 or less one-way and $131 or less round-trip.
  • Both within and outside of the terminals of Sky Harbor International Airport (PHX) are designated locations for pets to relieve themselves. The airport has eight locations for dogs to relieve themselves, drink water, and stretch their legs during layovers (mitts for cleaning up provided).
  • Is your journey to Phoenix taking longer than you thought, and do you need to keep your vehicle at Sky Harbor International Airport for a longer period than you first planned? The covered parking garage and the open parking lot are available to passengers who need to keep their automobiles at PHX for an extended period.
  • No matter which airline a customer is flying with, they are eligible to get a reduced rate to enter any of the lounges located in PHX. This is the greatest choice if you need to connect planes, if your trip was canceled, if you need to check in early in the morning, or if you want breakfast.
  • Phoenix Sky Harbor International Airport and Lambert International Airport (STL) provide services to assist guests who may have difficulties moving about the airport. Feel free to inquire about the assistance in renting a wheelchair and navigating the airport either before or after you go on your vacation. If you wish to use these services, you must give the airline plenty of notice in advance.
  • It is highly advised to pick up your rental automobile from Lambert International Airport as soon as you touch down. Passengers do not have to wait for a shuttle to a far-off place since there is a vehicle rental counter at the airport. Time is of the essence when it comes to renting an automobile.
See more tips

Prefer to fly non-stop from Phoenix to St. Louis?

Find which airlines fly direct from Sky Harbor Intl to Lambert-St Louis, which days they fly and book direct flights.

Nonstop departures

Phoenix Sky Harbor Intl to Lambert-St Louis

Monday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Tuesday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Wednesday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Thursday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Friday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Saturday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Sunday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

See more direct flights

Nonstop returns

Lambert-St Louis to Phoenix Sky Harbor Intl

Monday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Tuesday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Wednesday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Thursday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Friday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Saturday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Sunday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

See more direct flights
See more direct flights

Top 5 airlines serving from Phoenix to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Phoenix 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 Phoenix 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
DeltaOverall score based on 10402 reviews
8.0Entertainment
7.9Comfort
8.2Boarding
8.6Crew
7.4Food
Airline reviews

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

10.0 ExcellentBarb, Jun 2024MSP - JFK
Read more about Delta reviews

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

Re-checking our bags, the workers were not able to help us with boarding passes for the flight, told us to wait, then ignored us while they helped many other passengers. Until I got rude, they would have left us standing there, and even then they were very curt and dismissive in telling us where to get boarding passes printed. We made it to the gate just as they were starting to board passengers. It was just rude customer service.

While I received notice that AA 478 was delayed, the flight departed PHX and arrived PHL more than two hours late. The first class cabin service was mediocre; there were no pre-departure beverages offered; there were no warm mixed nuts served with cocktails; there was no personal greeting to me as an Executive Platinum member by the first class flight attendant. While the flight operated safely, its arrival at 0219 in the morning in PHL ended a very long day. I do not feel that American provided first class service.

Absolutely filthy flight and not equipped for a trans US

Turn on the heat. Flight was way too cold from Arizona to Chicago.

Poor on time performance. Flight was delayed due to a lightbulb. No updates from the pilot. Plane was dirty and hot, AC didn't work well.

Being back games on the in-flight entertainment. Also your flight attendants need a break, raise, or overall attitude adjustment.

The non stop flight and able to go into Atlantic City airport. They could lower the prices. It starts out low but then if you want to bring luggage and pick your seat the price goes up quite a bit.

Flight got diwngraded last minute and left us stranded. I was told I’ll be given credit for my luggage and seat upgrades but haven’t got anything yet

We can’t predict circumstances like this ahead of time, but I give your staff a hats off for immediately giving us updated informations.

It was nice! There was a very unhappy child in front of us and the flight attendant did a great job calming the child. I was impressed.

The plane was not on time for boarding or departure or arrivals.

EVERYTHING WAS WONDERFUL HOSPITALITY THE HELP.THE SEATING FRIENDLY ALWAYS HAVE A GOOD RIDE NOT ONE BAD EXPERIENCE WITH THEM

This was the smoothest flight I have had in awhile. I was also offered an exit row seat for a great upgrade cost and was able to sleep almost thr whole flight due to comfort and a smooth flight. We left on time and arrived on time.

No food not even water offered unless you buy it and no usb in the seat but other than that everything was good

Because our flight from marsh Harbor to Fort Lauderdale was over three hours delayed it caused us to miss our flight in Fort Lauderdale. Because we missed that flight, it cost us nearly $100 apiece for four different travelers which totaled nearly $400. We are seeking a reimbursement for the flight that we missed in Fort Lauderdale Florida.

Flight expected to leave at 6:40 pm ended leaving at 8:00 am the following day. I slept in a cold airport. Never again Spirit for me…

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

Book cheap flights from Phoenix to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Phoenix to St. Louis found on KAYAK in the last 72 hours.
7/20Sat
nonstopFrontier
3h 01mPHX-STL
$59
6/10Mon
nonstopFrontier
2h 54mPHX-STL
$60
6/25Tue
nonstopAmerican Airlines
2h 54mPHX-STL
$66
7/2Tue
nonstopAmerican Airlines
2h 54mPHX-STL
$67
6/25Tue
1 stopSpirit Airlines
24h 49mPHX-STL
$75
6/9Sun
1 stopSpirit Airlines
24h 12mPHX-STL
$76
6/26Wed
1 stopDelta
5h 21mPHX-STL
$108
9/7Sat
2 stopsUnited Airlines
8h 22mPHX-STL
$153
6/28Fri
1 stopDelta
5h 21mPHX-STL
$159
7/2Tue
2 stopsUnited Airlines
9h 39mPHX-STL
$244

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Search by airline

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Last minute flights from Phoenix to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Phoenix to St. Louis that are departing in the next 10 days.
6/5Wed
nonstopFrontier
2h 59mPHX-STL
7/3Wed
nonstopFrontier
3h 18mSTL-PHX
$158
6/5Wed
nonstop
2h 59mPHX-STL
7/2Tue
multi-stop
10h 18mSTL-PHX
$184
6/5Wed
multi-stopFrontier
14h 49mPHX-STL
7/3Wed
nonstopFrontier
3h 18mSTL-PHX
$198
6/5Wed
nonstopAmerican Airlines
2h 54mPHX-STL
7/2Tue
nonstopAmerican Airlines
3h 20mSTL-PHX
$201
6/6Thu
nonstopAmerican Airlines
2h 57mPHX-STL
6/9Sun
nonstopAmerican Airlines
3h 20mSTL-PHX
$226
6/6Thu
multi-stopDelta
5h 49mPHX-STL
6/13Thu
multi-stopDelta
6h 18mSTL-PHX
$253
6/6Thu
multi-stopUnited Airlines
12h 24mPHX-STL
6/8Sat
multi-stopUnited Airlines
7h 05mSTL-PHX
$330
6/5Wed
multi-stopUnited Airlines
8h 34mPHX-STL
7/3Wed
multi-stopUnited Airlines
6h 30mSTL-PHX
$338
6/6Thu
multi-stopSpirit Airlines
24h 41mPHX-STL
6/13Thu
multi-stopSpirit Airlines
8h 24mSTL-PHX
$501
6/6Thu
multi-stopSpirit Airlines
24h 41mPHX-STL
6/13Thu
multi-stopSpirit Airlines
21h 27mSTL-PHX
$516

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Phoenix - St. Louis Flights

Departure:

Phoenix (PHX)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Phoenix

Cabin classes:

$1,248
$1,108
$1,236
$88