Cheap flights from Sioux City to Illinois from $166
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux City to Illinois departing on 6/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from Sioux City to Illinois
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How to get the cheapest flight ticket from Sioux City to Illinois
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 Illinois?
The cheapest month to fly to Illinois from Sioux City is in December. Flight prices, which tend to average around $260, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of December, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $272.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Sioux City to Illinois is on a Tuesday when prices can be found for as low as $389. Flights from Sioux City to Illinois on a Sunday will generally be more expensive and average around $649. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest Sioux City Sioux Gateway to Illinois flight route?
Fly from Sioux City Sioux Gateway to Chicago O'Hare Intl for the best Sioux City Sioux Gateway - Illinois flight prices
What cabin class options are available on Sioux City Sioux Gateway to Illinois flights?
There are 2 cabin classes available to choose from on Sioux City Sioux Gateway to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Sioux City Sioux Gateway to Illinois?
United Airlines is the most popular carrier operating from Sioux City Sioux Gateway to Illinois
What airlines fly to Illinois?
United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from Sioux City according to our data. United Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Sioux City to Illinois on average per day?
As of May 2025, there are 1 flights per day flying from Sioux City to Illinois. The most common time of day flights depart is 10:00AM, with 100% of flights taking off at noon.
How many flights depart from Sioux City to Illinois on average per week?
7 flights are operational weekly from Sioux City to Illinois as of May 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
Cheap Sioux City to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Sioux City to Illinois
Best Price Found | $166 |
|---|---|
Fastest flight time | 1h 44m |
Direct flights | Thu, Fri, Sat and Sun |
Airports in Illinois | 1 airport |
When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to Illinois?
Prices for flights from Sioux City Sioux Gateway Airport to Illinois are updated daily.
How many operators does momondo search for flights from Sioux City Sioux Gateway Airport to Illinois?
As of May 2025, there is 1 operator available to choose from for flights from Sioux City Sioux Gateway Airport to Illinois.
How old do you have to be to fly from Sioux City Sioux Gateway Airport to Illinois?
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 Sioux City Sioux Gateway Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois 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 Illinois. 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 Sioux City to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Sioux City to Illinois is Canadair (Bombardier) Regional Jet (41.18% of total bookings). The next most popular plane models are Boeing 737-800 (9.80%), Boeing 717-200 (5.88%), and Airbus A319 (5.88%).
Best airlines flying from Sioux City to Illinois
Compare and see reviews for airlines that fly from Sioux City to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $225 | Free Cancellation | Rating 7.4 8,726 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Sioux City to Illinois?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sioux City to Illinois for you.
Can I find flights from Sioux City to Illinois with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Illinois from Sioux City with this policy.
How can momondo help me find flights from Sioux City to Illinois?
Once you have performed a search for Sioux City to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Sioux City to Illinois right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Illinois from Sioux City. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.