Cheap Flights from Chicago O'Hare International to Sioux City

Compare Chicago O'Hare International to Sioux City flight deals

Find the cheapest month or even day of the year to fly to Sioux City

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Flight deals from Chicago O'Hare International to Sioux City

Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International to Sioux City? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago O'Hare International to Sioux City

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to Sioux City flights are currently cheapest in January.

Direct flights from Chicago O'Hare International to Sioux City

Chicago O'Hare International to Sioux City: Alternative routes

Compare routes from Chicago O'Hare International to Sioux City below. You may find an airport to fly into that's cheaper, faster, or easier than Sioux City.

Chicago to Sioux City: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 7,643
Cheapest month to flyJanuary
Average flight time1 hr, 54 mins
Most popular airlineUnited
Average flights per week18

Finding cheap flights from Chicago O'Hare International to Sioux City: Frequently asked questions

The best price we found for a return flight from Chicago O'Hare International to Sioux City is ج.م.‏ 11,626. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 54 minutes is the average flight time from Chicago O'Hare International to Sioux City.
United and SkyWest Airlines fly direct from Chicago O'Hare International to Sioux City.
As of December 2025, there are 18 flights per week flying from Chicago O'Hare International to Sioux City.
The cheapest month to fly from Chicago O'Hare International to Sioux City is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to Sioux City Airport on Sunday, 12 July 2026.
Yes – the average flight time is 1 hour and 54 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sioux City but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sioux City is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Sioux City.

Travelling from O'Hare International Airport (ORD) to Sioux Gateway Airport (SUX): what you need to know

  • Give yourself plenty of time to catch your ORD to SUX flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

  • You can expect longer queues in popular months like August. Arriving up to four hours in advance for an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

  • United Airlines is your gateway to discovering Sioux City (and perhaps some other exciting corners of United States!). Check out the direct flights from O'Hare International Airport to Sioux Gateway Airport offered by this carrier.

  • United Airlines is the airline most travellers choose to fly with on this route.

  • The carrier with the most consistent on-time arrivals for ORD to SUX flights is United Airlines.

  • If you want to tour a new city along the way, look for a flight with a stopover. To see your options for tickets from O'Hare International Airport to Sioux Gateway Airport, deselect 'Direct flights only.' Denver International Airport is a popular stop between ORD and SUX.

How to find the cheapest flights from O'Hare International Airport (ORD) to Sioux Gateway Airport (SUX)

  • At the moment, ج.م.‏ 7,643 is the lowest price we've seen for a one-way O'Hare International Airport to Sioux Gateway Airport flight. The best price for a return ticket is ج.م.‏ 11,626. Remember that fares can change due to availability at the time of booking.

  • To score cheap tickets from ORD to SUX, book early. Airlines typically offer their best fares when flights are first released.

  • If you're flexible with your travel dates, use the 'Whole month' search function. It'll show you the cheapest price across every month when looking for your flight from O'Hare International Airport to Sioux Gateway Airport.

  • Finding cheap flights from ORD to SUX is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as fares go down.

  • Tailor your flights using filters. Choose your ideal arrival and departure times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from O'Hare International Airport to Sioux Gateway Airport.

Handy information about O'Hare International Airport (ORD)

  • ORD's address is 10000 West O'Hare.

  • 74.85% of flights that leave from O'Hare International Airport arrive at their destination on schedule.

  • To get to O'Hare International Airport from central Chicago, it takes around 35 minutes by car. Of course, this depends on traffic. It's approximately 40 kilometres from the airport to the city centre.

  • The trip on public transport takes about 55 minutes.

  • Looking for a handy hotel near ORD? If you're catching an early flight from O'Hare International Airport to Sioux Gateway Airport, these stays will put you moments from your check-in counter:

Arriving at Sioux Gateway Airport (SUX)

Getting from Sioux Gateway Airport (SUX) to central Sioux City

  • The address for SUX is 2403 Odgen Road.

  • From Sioux Gateway Airport, Sioux City is approximately 13 kilometres away. It takes around 10 minutes to drive to the centre.

  • Travelling by public transport takes around 30 minutes.

When to fly to Sioux Gateway Airport (SUX)

  • The quietest month for a flight from O'Hare International Airport to Sioux Gateway Airport is February, while April is the most popular. Pick the best time to visit Sioux City based on whether you prefer a faster pace or a more relaxed vibe.

  • Lock in your flight from O'Hare International Airport to Sioux Gateway Airport for July if you want to visit Sioux City during its warmest month. You can expect temperatures of between 15ºC and 33ºC.

  • January has average temperatures of between -14ºC and 2ºC. Search for cheap tickets from ORD to SUX around that time if you like cooler conditions.

Explore more of United States

  • Sioux City has loads to offer, but there are so many other corners of United States waiting to be explored. About 402 kilometres south-east of Sioux City, a trip to Kansas City will fill your itinerary to the brim. Start with popular sights like National WWI Museum and Memorial, Union Station Kansas City and The Irish Centre at Union Station.

  • Around 145 kilometres south of Sioux City, Omaha is another favourite stop in United States. Experience the best of this destination with a visit to Old Market, Bob Kerrey Pedestrian Bridge and Heartland of America Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.