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Sioux City

$161+ Cheap flights from Illinois to Sioux City (SUX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SUX
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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Cheap flight deals from Illinois to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) 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 December 22, 2024.

Round-trip from

$326
(United Airlines)

One-way from

$161
(United Airlines)
From Illinois to Sioux City Sioux Gateway
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One-way flight from Illinois to Sioux City Sioux Gateway
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Find flight deals from Illinois to Sioux City

Cheapest flights from Illinois to Sioux City
Explore the most affordable flight options available from Illinois to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2024.

This United Airlines deal was found by Cheapflights users on 12/22. 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 12/279:18 pmORD - SUX
Nonstop1h 47mUnited Airlines
Sun 12/297:20 amSUX - ORD
Nonstop1h 50mUnited Airlines
Deal found 12/22$472

Find flights from Illinois to Sioux City within your budget

Customize your flight search to find flights from Illinois 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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Mon 1/6

9:18 pm-11:05 pm

Nonstop1h 47m

Sioux City Sioux Gateway

Fri 1/10

10:00 am-11:49 am

Nonstop1h 49m

$326

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Sun 1/26

8:20 pm-10:12 pm

Nonstop1h 52m

$161

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Best time to book a flight from Illinois to Sioux City

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

Travel insights for flights from Illinois to Sioux City

Get recent, data-driven insights about flights from Illinois to Sioux City including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Sioux City (average of $318). Flying from Illinois to Sioux City in March is currently the most expensive (average of $446). 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.

What is the cheapest time of day to fly from IL to SUX?

Find hourly flight availability from Illinois to Sioux City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 22, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Sioux City as you normally would.

Weekly flight availability from Illinois to Sioux City

Explore weekly flight availability from Illinois to Sioux City. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 22, 2024.

The most flights from USIL to SUX are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Sioux City by month

Plan your trip to Sioux City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sioux City ranges from 0.7 - 4.2 inches per month. June is typically the wettest month, when rainfall can reach 4.2 in. January is typically the driest time to visit Sioux City when rainfall is around 0.7 in.

Temperature in Sioux City by month

Plan your trip to Sioux City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sioux City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 December 22, 2024.
United Airlines
7.4
Good
9,028 reviews

Comfort

7.3

Entertainment

7.1

Food

6.7

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

United Airlines
7.4
Good
9,028 reviews
United Airlines
7.4
Good
9,028 reviews

Comfort

7.3

Entertainment

7.1

Food

6.7

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois?

    For a flight from Illinois to Sioux City, you will be flying into Sioux Gateway. Sioux City Sioux Gateway (SUX) is just 7.0 mi from the center of the city.

  • What are the cheapest flights from Illinois to Sioux City?

    While on average a flight from Illinois to Sioux City is generally $243, our data shows the cheapest flight currently is $214. When looking at the most popular route, (Chicago O'Hare Intl - Sioux City Sioux Gateway), you can expect to pay $199 for that flight.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Illinois to Sioux City (average of $318). Flying from Illinois to Sioux City in March is currently the most expensive (average of $446). 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.

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Alternative routes for Illinois to Sioux City

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Top airline flying from Illinois to Sioux City

Discover the top airline that operate flights from Illinois 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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$214Average$321FlexibilityNo cancel feeOn-time69%
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