C$221 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 round-trip flight from Chicago O'Hare International to Sioux City? Find the lowest prices on one-way and round-trip 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 foundC$221
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 C$280. 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 March.
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 Friday, March 6, 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.

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

  • Popular months like August or high seasons such as Christmas and New Year will mean longer waits at check-in and security. Traveling then? Play it safe and head to the airport even earlier. Arriving two hours before domestic flights and up four hours ahead of international flights is a wise move.

  • United Airlines is your ticket to exploring Sioux City (and perhaps some other exciting corners of United States!). Browse the direct flights from O'Hare International Airport to Sioux Gateway Airport offered by this airline.

  • Choose a stopover if you'd love to break up your flight from O'Hare International Airport to Sioux Gateway Airport. To look at your options, just deselect 'Direct flights only.' Denver International Airport is a top stopover on the ORD to SUX route.

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

  • The best price we've found for a one-way ticket from O'Hare International Airport to Sioux Gateway Airport is C$221. The cheapest price for a return flight is C$280. Bear in mind that fares could change due to demand at the time of booking.

  • Don't leave things to the last minute. You're more likely to get cheap flight tickets from ORD to SUX if you book in advance. Airlines often offer some excellent early bird discounts.

  • If you're willing to be flexible with your travel dates, use the 'Whole month' search tool. It'll find the lowest price across every month when looking for a ticket from O'Hare International Airport to Sioux Gateway Airport.

  • Set up a Price Alert for cheap flight tickets from ORD to SUX. You don't need to check every day to find out if fares have fallen. We'll update you as soon as the price changes.

  • Use filters to tailor your flights from O'Hare International Airport to Sioux Gateway Airport. Simply enter your ideal arrival and departure times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to get the best deals.

Handy information about O'Hare International Airport (ORD)

Arriving at Sioux Gateway Airport (SUX)

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

  • Sioux Gateway Airport is approximately 13 kilometres from the center of Sioux City. With your own car rental or if you take a cab, the drive is around 12 minutes.

  • It'll take around 28 minutes if you're using public transport.

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 August is the most popular. Pick the best time to go to Sioux City based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Sioux City is July, with the temperature ranging between 15ºC and 33ºC. Lock in your flights from O'Hare International Airport to Sioux Gateway Airport in this month if this is the type of weather you like.

  • January has average temperatures of between -14ºC and 2ºC. Look for cheap flight tickets from ORD to SUX around that time if you'd rather travel in cooler conditions.

More about Sioux City

  • Start your Sioux City trip right by finding a great stay. As soon as you've booked your flight from ORD to SUX, check out our accommodation options including:

  • Lewis and Clark Interpretive Center and Sioux City Public Museum are a couple of top attractions to put on your Sioux City travel itinerary. Keep the sightseeing going at Stone State Park.

Complete your Sioux City trip with hotels and a car rental

  • You've booked your cheap ticket to Sioux Gateway Airport — next up is finding a place to stay, and maybe even your own set of wheels. We've compared prices across hundreds of companies to bring you the top hotels and car rental deals in Sioux City.

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