Cheap flights from Illinois to Sioux City from $161
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Sioux City departing on 6/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Illinois to Sioux City
Cheap round-trip flights
Cheap one-way flights
Cheap direct flights
United Airlines flights from Illinois to Sioux City
Our best United Airlines deals on Illinois to Sioux City flight tickets
See travel insights to Sioux City from
How to get the cheapest flight ticket from Illinois to Sioux City
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Sioux City?
The cheapest month to fly to Sioux City from Illinois is in December. Flight prices, which tend to average around $188, are often lower during this time because this is during the off-season. The month of July is another great option to travel to Sioux City, with average flight prices from Illinois averaging around $260.
What is the cheapest day to depart on your flight to Sioux City?
On average, the least expensive day to fly to Sioux City from Illinois is on a Thursday. momondo users have found tickets for Thursday departures for as low as $240. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $476.
What is the cheapest time of day to depart on your flight to Sioux City?
The cheapest time of day to fly to Sioux City is in the evening when flights can be purchased for as low as $322. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $354 on average. Flights to Sioux City from Illinois in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Illinois to Sioux City Sioux Gateway flight route?
Fly from Chicago O'Hare Intl to Sioux City Sioux Gateway for the best Illinois - Sioux City Sioux Gateway flight prices
What is the cheapest airline that flies from Illinois to Sioux City Sioux Gateway?
United Airlines is the most popular carrier operating from Illinois to Sioux City Sioux Gateway
What airlines fly to Sioux City?
United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Sioux City from Illinois according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Sioux City. Keep in mind that there are 3 different airlines that fly to Sioux City on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to Sioux City on average per day?
As of May 2025, there are 1 flights per day flying from Illinois to Sioux City. The most common time of day flights depart is 8:00PM, with 100% of flights taking off in the evening.
How many flights depart from Illinois to Sioux City on average per week?
As of May 2025, there are 7 flights per week flying from Illinois to Sioux City. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
Cheap Illinois to Sioux City flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Sioux City
Best Price Found | $161 |
|---|---|
Fastest flight time | 1h 45m |
Direct flights | Mon, Thu, Fri, Sat and Sun |
Airports in Sioux City | 1 airport |
When did momondo last update prices for flights from Illinois to Sioux City Sioux Gateway Airport?
Prices for flights from Illinois to Sioux City Sioux Gateway Airport are updated daily.
How many operators does momondo search for flights from Illinois to Sioux City Sioux Gateway Airport?
There is 1 operator available for flights from Illinois to Sioux City Sioux Gateway Airport as of May 2025.
How old do you have to be to fly from Illinois to Sioux City Sioux Gateway Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Sioux City Sioux Gateway Airport.
What documentation or ID do you need to fly to Sioux City Sioux Gateway Airport?
The required travel and health documents for your Sioux City Sioux Gateway Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sioux City Sioux Gateway Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Sioux City?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Sioux City is Canadair (Bombardier) Regional Jet, representing 79.31% of all bookings. The subsequent popular models are Embraer 170 at 6.90%, Embraer 175 (Enhanced Winglets) at 3.45%, and Embraer 175 at 3.45%.
Best airlines flying from Illinois to Sioux City
Compare and see reviews for airlines that fly from Illinois to Sioux City with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $214 | Free Cancellation | Rating 7.4 8,710 reviews |
Traveling to a place near Sioux City?
Book flights to Sioux City if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Illinois to Sioux City?
It is quick and easy to find Illinois to Sioux City flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sioux City that suits you.
Can I find flights from Illinois to Sioux City with flexible booking policies on momondo?
Flights from Illinois to Sioux City with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Illinois to Sioux City?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Sioux City.
I’m not ready to book a flight from Illinois to Sioux City right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Illinois to Sioux City flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.