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Sioux City

$304+ Cheap flights from Houston to Sioux City (SUX)

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SUX
Nov 18 — Nov 251
Tue 11/18
Tue 11/25
1 adult, Economy
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Cheap flight deals from Houston to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Sioux City (SUX). 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 October 19, 2025.

Round-trip from

$304
(United Airlines)
From Houston to Sioux City Sioux Gateway
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Find flight deals from Houston to Sioux City

Cheapest flights from Houston to Sioux City
Explore the most affordable flight options available from Houston to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2025.

This United Airlines deal was found by Cheapflights users on 10/19. 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.
Fri 11/75:10 pmIAH - SUX
1 stop5h 49mUnited Airlines
Sun 11/97:45 amSUX - IAH
1 stop8h 00mUnited Airlines
Deal found 10/19$524

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston to Sioux City 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 October 19, 2025.
Use the filters below to find and compare flights from Houston to Sioux City that are best for you.

Fly from

Houston

Fly to

Sioux City

Route

Depart

Return

Price

HoustonSioux City

IAH - SUX

IAHSUX

Houston George Bush Intcntl

Sat 2/21

4:32 pm-11:42 pm

1 stop7h 10m

Sioux City Sioux Gateway

Tue 2/24

1:00 pm-9:23 pm

1 stop8h 23m

$304

HoustonSioux City

IAH - SUX

IAHSUX

Houston George Bush Intcntl

Fri 11/7

5:10 pm-10:59 pm

1 stop5h 49m

Sioux City Sioux Gateway

Sun 11/9

7:45 am-3:45 pm

1 stop8h 00m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/17

Best time to book a flight from Houston to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Houston 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 Houston to Sioux City

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

Currently, February is the cheapest month in which you can book a flight from Houston to Sioux City (average of $137). Flying from Houston to Sioux City in January is currently the most expensive (average of $262). 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 Sioux City

Get insights into the airlines that provide service to Sioux City. 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 Sioux City. Reviews last updated October 19, 2025.
See what other customers who have flown with United Airlines from Houston to Sioux City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,994 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,994 reviews
United Airlines
7.4
Good
8,994 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Houston to Sioux City. 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 into for flights to Sioux City from Houston?

    Most people fly into Sioux City Sioux Gateway (SUX) if they book a flight to Sioux City from Houston. On average, Sioux Gateway has 0 inbound flights from Houston per day from 1 airline. Sioux City Sioux Gateway is conveniently located just 7.0 mi from Sioux City’s city center.

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

    Departing from Houston to Sioux City will take you 7h 10m. There are 859 mi between Houston and Sioux City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Houston to Sioux City 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 Houston to Sioux City?

    Currently, February is the cheapest month in which you can book a flight from Houston to Sioux City (average of $137). Flying from Houston to Sioux City in January is currently the most expensive (average of $262). 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

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Top airline flying from Houston to Sioux City

Discover the top airline that operate flights from Houston to Sioux City. 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 October 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$348Average$389FlexibilityNo cancel feeOn-time69%

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