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$324+ Cheap flights from Sioux City (SUX) to Phoenix

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — PHX
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap flight deals from Sioux City to Phoenix

Cheapest flights from Sioux City to Phoenix
Explore the most affordable flight options available from Sioux City to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:48 pm
SUX
-
PHX
1 stop5h 18m
United Airlines
Sat 10/244:30 pm
PHX
-
SUX
1 stop5h 12m
United Airlines
Deal found 3/18$324
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:46 pm
SUX
-
PHX
1 stop5h 05m
United Airlines
Tue 11/109:50 am
PHX
-
SUX
1 stop7h 21m
United Airlines
Deal found 3/17$404
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:00 am
SUX
-
PHX
1 stop4h 48m
United Airlines
Sat 4/257:00 am
PHX
-
SUX
1 stop8h 56m
United Airlines
Deal found 3/18$420
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:32 pm
SUX
-
PHX
1 stop5h 37m
United Airlines
Tue 4/217:00 am
PHX
-
SUX
1 stop25h 46m
United Airlines
Deal found 3/18$477

Find flight deals from Sioux City to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to Phoenix (PH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 22, 2026.

Round-trip from

$420
(United Airlines)
From Sioux City Sioux Gateway to Phoenix
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to Phoenix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Sioux City to Phoenix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Sun 4/19

6:00 am-8:48 am

1 stop4h 48m

Phoenix Sky Harbor Intl

Sat 4/25

7:00 am-5:56 pm

1 stop8h 56m

$420

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Thu 4/23

6:32 pm-10:09 pm

1 stop5h 37m

Phoenix Sky Harbor Intl

Sun 4/26

6:00 am-11:44 pm

1 stop15h 44m

$560

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Thu 4/16

6:32 pm-10:09 pm

1 stop5h 37m

Phoenix Sky Harbor Intl

Tue 4/21

6:00 am-10:46 am

2 stops26h 46m

$560
Quickest round-trip

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Thu 4/9

6:32 pm-10:09 pm

1 stop5h 37m

Phoenix Sky Harbor Intl

Sun 4/12

4:34 pm-11:44 pm

1 stop5h 10m

$718

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Sun 4/5

6:32 pm-10:09 pm

1 stop5h 37m

Phoenix Sky Harbor Intl

Thu 4/9

4:34 pm-11:44 pm

1 stop5h 10m

$726

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Sorted by cheapest first

Best time to book a flight from Sioux City to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix from Sioux City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Sioux City to Phoenix?

Currently, September is the cheapest month in which you can book a flight from Sioux City to Phoenix (average of $89). Flying from Sioux City to Phoenix in March is currently the most expensive (average of $185). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phoenix. Reviews last updated March 22, 2026.
Read reviews from past customers who have flown United Airlines from Sioux City to Phoenix. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,455 reviews

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,455 reviews
United Airlines
7.4
Good
9,455 reviews

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Sioux City to Phoenix. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sioux City to Phoenix?

    If you book a flight to Phoenix from Sioux City, you will be flying from Sioux Gateway, which is the city’s only airport. Sioux City Sioux Gateway (SUX) is located 7.0 mi from the center of Sioux City. There are 0 flights from Sioux Gateway to Phoenix per day from 1 airline.

  • How long is the flight from Sioux City to Phoenix?

    Departing from Sioux City to Phoenix will take you 4h 48m. Airlines will cover a distance of 1049 mi.

  • Can I find deals for flights from Sioux City to Phoenix that include hotel bookings?

    Yes. In addition to deals on Sioux City to Phoenix flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux City to Phoenix?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux City to Phoenix.

  • Can I find deals for business class flights from Sioux City to Phoenix?

    Yes. Cheapflights offers flight deals from Sioux City to Phoenix by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sioux City to Phoenix?

    Currently, September is the cheapest month in which you can book a flight from Sioux City to Phoenix (average of $89). Flying from Sioux City to Phoenix in March is currently the most expensive (average of $185). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Sioux City to Phoenix

Discover the top airline that operate flights from Sioux City to Phoenix. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$243Average$323FlexibilityNo cancel feeOn-time69%

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