SUX - PHX

$265 Find Cheap Flights from Sioux City to Phoenix

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux City to Phoenix departing on 12/16. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Phoenix Sky Harbor Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux City to Phoenix, 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 Sioux City to Phoenix, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Sioux City to Phoenix (SUX-PHX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux City to Phoenix 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 Sioux City to Phoenix

Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
7:50 am - 12:59 pmSUX-PHX
7h 09m1 stop
United Airlines Logo
7:10 am - 6:14 pmPHX-SUX
9h 04m2 stops
$409United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
7:50 am - 2:52 pmSUX-PHX
9h 02m2 stops
United Airlines Logo
7:10 am - 6:14 pmPHX-SUX
9h 04m2 stops
$484United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
6:51 pm - 8:59 amSUX-PHX
16h 08m2 stops
United Airlines Logo
12:35 pm - 11:00 pmPHX-SUX
8h 25m1 stop
$493United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26
United Airlines Logo
6:51 pm - 9:57 pmSUX-PHX
5h 06m1 stop
United Airlines Logo
7:05 am - 6:08 pmPHX-SUX
33h 03m2 stops
$500United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
6:51 pm - 8:43 amSUX-PHX
15h 52m1 stop
United Airlines Logo
12:35 pm - 11:00 pmPHX-SUX
8h 25m1 stop
$510United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
6:51 pm - 8:59 amSUX-PHX
16h 08m2 stops
United Airlines Logo
10:41 am - 11:00 pmPHX-SUX
10h 19m2 stops
$524United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26
United Airlines Logo
6:51 pm - 8:59 amSUX-PHX
16h 08m2 stops
United Airlines Logo
7:05 am - 6:08 pmPHX-SUX
33h 03m2 stops
$588United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
7:50 am - 10:00 pmSUX-PHX
16h 10m1 stop
United Airlines Logo
2:40 pm - 11:00 pmPHX-SUX
6h 20m1 stop
$599United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26
United Airlines Logo
6:51 pm - 9:57 pmSUX-PHX
5h 06m1 stop
United Airlines Logo
4:33 pm - 6:08 pmPHX-SUX
23h 35m1 stop
$602United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
7:50 am - 9:15 pmSUX-PHX
15h 25m3 stops
United Airlines Logo
11:42 am - 11:00 pmPHX-SUX
9h 18m2 stops
$1,555United Airlines
Find Deal

Everything you should know

Cheapest round-trip
$409
United Airlines
Tue 9/30Sat 10/4
SUX - PHX • 1 stop
Cheapest one-way
$265
United Airlines
Tue 12/16
SUX - PHX • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Phoenix!
Booking Insights

KAYAK's insights & trends for Sioux City to Phoenix flights

Get data-powered insights and trends into flights from Sioux City to Phoenix 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 Sioux City to Phoenix?

The average price of all round-trip flights from Sioux City to Phoenix Sky Harbor Intl Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Phoenix on a Tuesday and more expensive on a Wednesday. On your return trip to Sioux City, you should consider flying back on a Friday, and avoid Sundays for better deals.

Good to know

Cheapest flight$265
Flight from Sioux City to Phoenix

When to book flights from Sioux City to Phoenix

Are your dates flexible? Find out the best times to travel from Sioux City to Phoenix 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 Sioux City to Phoenix flights

  • What is the cheapest flight from Sioux City to Phoenix Sky Harbor Intl Airport?

    In the last 3 days, the lowest price for a flight from Sioux City to Phoenix Sky Harbor Intl Airport was $265 for a one-way ticket and $409 for a round-trip.

  • Do I need a passport to fly between Sioux City and Phoenix?

    No

  • Which airports will I be using when flying from Sioux City to Phoenix?

    Sioux City airport is called Sioux City Sioux Gateway and the only airport in Phoenix is Phoenix Sky Harbor Intl.

  • Which aircraft models fly most regularly from Sioux City to Phoenix?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sioux City to Phoenix?

    Star Alliance is the only airline alliance operating flights between Sioux City and Phoenix.

  • How does KAYAK find such low prices on flights from Sioux City to Phoenix?

    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 Sioux City to Phoenix.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix from Sioux City 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 Sioux City to Phoenix?

    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 Phoenix with an airline and back to Sioux City with another airline. Booking your flights between Sioux City and PHX 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 Sioux City to Phoenix?

    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 Phoenix from Sioux City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Sioux City to Phoenix

 
See real verified KAYAK customer reviews for airlines flying from Sioux City to Phoenix. 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 Sioux City to Phoenix? 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.
7.4
United AirlinesOverall score based on 8924 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
Airline reviews

Terrible. They wouldn't allow me on my flight on the 14th..

2.0 MediocreJulian, Sep 2025DEN - DRO
Read more United Airlines reviews

Terrible. They wouldn't allow me on my flight on the 14th..

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

Everything you need to know for your flight from Sioux City to Phoenix

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