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Sky Harbor Intl

$274+ Cheap flights from Sioux City (SUX) to Sky Harbor Intl (PHX)

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — PHX
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Sioux City to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to Sky Harbor Intl (PHX). 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 July 29, 2025.

Round-trip from

$274
(United Airlines)
From Sioux City Sioux Gateway to Phoenix Sky Harbor Intl
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Find flight deals from Sioux City to Sky Harbor Intl

Cheapest flights from Sioux City to Sky Harbor Intl
Explore the most affordable flight options available from Sioux City to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/126:53 pmSUX - PHX
1 stop5h 07mUnited Airlines
Sat 8/1612:35 pmPHX - SUX
1 stop8h 05mUnited Airlines
Deal found 7/28$274

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to Sky Harbor Intl 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 July 29, 2025.
Use the filters below to find and compare flights from Sioux City to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Sioux City

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Tue 8/12

6:53 pm-10:00 pm

1 stop5h 07m

Phoenix Sky Harbor Intl

Sat 8/16

12:35 pm-10:40 pm

1 stop8h 05m

$274

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Mon 8/4

6:53 pm-8:16 pm

1 stop27h 23m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Sioux City to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl 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 Sky Harbor Intl Airport

What is the cheapest month to book a flight from Sioux City to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Sioux City to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Sioux City to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). 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 Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. 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 Sky Harbor Intl. Reviews last updated July 29, 2025.
Read through reviews of airlines operating flights from Sioux City to Phoenix Sky Harbor Intl Airport, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Sioux City to Sky Harbor Intl. 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 Sky Harbor Intl?

    Located just 7.0 mi from the city center, Sioux City Sioux Gateway is the airport most travelers will use when flying to Phoenix Sky Harbor Intl from Sioux City. Booking flights from Sioux Gateway (SUX) to Phoenix Sky Harbor Intl should be relatively easy as there are 0 daily outbound flights to Phoenix Sky Harbor Intl from 1 airline.

  • What is the cheapest airline to fly from Sioux City to Phoenix Sky Harbor Intl Airport round-trip?

    According to our current data, United Airlines ($274), offers the cheapest pricing from Sioux City to Phoenix Sky Harbor Intl Airport.

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

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

  • How can I find direct flights from Sioux City to Sky Harbor Intl?

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

  • Can I find deals for business class flights from Sioux City to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Sioux City to Sky Harbor Intl 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 Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Sioux City to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Sioux City to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). 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

Traveling to a place near Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
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Top airline flying from Sioux City to Sky Harbor Intl

Discover the top airline that operate flights from Sioux City to Sky Harbor Intl. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$243Average$393FlexibilityNo cancel feeOn-time69%

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