Cheap Flights from Sioux City to Chicago

Compare Sioux City to Chicago flight deals

Find the cheapest month or even day of the year to fly to Chicago

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Flight deals from Sioux City to Chicago

Looking for a cheap last-minute deal or the best return flight from Sioux City Airport to Chicago? If you want to travel next month, return fares start from R 3,643. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Sioux City to Chicago

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

Direct flights from Sioux City to Chicago

Sioux City to Chicago: Flight information

The things to know before you go.
Cheapest flight foundR 2,834
Cheapest month to flyAugust
Average flight time1 hr, 54 mins
Most popular airlineUnited
Average flights per week32

Finding cheap flights from Sioux City to Chicago: Frequently asked questions

There are 4 airports in Chicago: Chicago Midway, Chicago O'Hare International, Chicago Dupage County, and Chicago Rockford.
The best price we found for a return flight from Sioux City to Chicago is R 3,643. 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 Sioux City to Chicago.
United and SkyWest Airlines fly direct from Sioux City to Chicago.
As of June 2026, there are 16 flights per week flying from Sioux City to Chicago.
The cheapest month to fly from Sioux City to Chicago is usually July.
If you're flying from Sioux City Airport, the cheapest airport near Chicago is Chicago O'Hare International – which is 25.4 km away from the centre of Chicago. We've found flights into this airport from R 3,643.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sioux City Airport to Chicago on Wednesday, 8 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 Chicago 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 Chicago is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 19°C. July is typically the warmest month in Chicago, when it usually averages around 26°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is August.
Currently, United offers the cheapest flight tickets to Chicago.

Travelling from Sioux Gateway Airport (SUX) to Chicago: what you need to know

  • The average duration of a direct flight from Sioux Gateway Airport to Chicago is 1 hour 55 minutes.

  • Chicago and Sioux City (where Sioux Gateway Airport is located) are both in the UTC-6 timezone. This means you won't need to account for any time differences.

  • With seven departures a week between the two airports, Sioux Gateway Airport (SUX) to Chicago O'Hare International Airport (ORD) is the most popular route. Board United Airlines's 07:45 flight to get your trip from SUX to ORD underway.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to board your SUX to Chicago flight.

  • Flying during a peak time like March? Major public holidays and other high seasons can mean longer queues and delays at check-in and security. Play it safe and arrive up to four hours before an international flight and two hours before domestic departures.

  • Begin your trip at SUX and fly straight to Chicago O'Hare International Airport (ORD). That's where you can expect to touch down when searching for Sioux Gateway Airport to Chicago tickets.

  • Check out the offers from United Airlines. This carrier has direct flights from Sioux Gateway Airport to Chicago.

  • Travelling from central Sioux City to SUX takes around 35 minutes on public transport. If you ride-share, drive or grab a taxi, you'll cover the 11 kilometres in 15 minutes or so, depending on traffic conditions.

  • Searching for a hotel close to SUX? If you're catching an early flight from Sioux Gateway Airport to Chicago, these accommodation options set you up for a seamless send-off:

  • Of all flights departing from Sioux Gateway Airport, 74% arrive as scheduled at their destination.

  • SUX's address is 2403 Odgen Road.

How to find the cheapest flights from Sioux Gateway Airport (SUX) to Chicago

  • The best price we've seen for a one-way Sioux Gateway Airport to Chicago flight is R 2,834. The cheapest price for a return flight is R 3,643. Remember fares can change due to demand at the time of booking.

  • Get cheap flights from SUX to Chicago by booking five months ahead. According to our research, that's the sweet spot for landing a bargain.

  • Plan your trip for October. That's the best month for scoring a bargain on Sioux Gateway Airport to Chicago tickets. If you're open to different travel dates, use the 'Whole month' tool to find the lowest price across each month.

  • Locking in a cheap flight from SUX to Chicago is easy with Price Alerts. All you need to do is set up one of these automatic notifications and we'll notify you when a lower fare pops up.

  • Tailor your flights with 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 Sioux Gateway Airport to Chicago.

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • Chicago O'Hare International Airport (ORD) is around 27 kilometres from central Chicago. If you're getting a taxi or a ride-share, the drive takes roughly 30 minutes.

  • It takes around 45 minutes to get there using public transport.

  • Look into staying at a hotel close to ORD if you're coming in on a late flight from Sioux Gateway Airport to Chicago. Settle into one of these options and avoid the hassle of a long transfer:

  • Lock in the best rate by reserving your ride from Chicago O'Hare International Airport about four weeks before your flight from SUX to Chicago.

  • You'll find ORD at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Central Chicago is located around 16 kilometres from Chicago Midway International Airport (MDW). Once your flight from Sioux Gateway Airport to Chicago has landed and you've navigated your way to arrivals, the drive should be around 25 minutes.

  • If you choose to travel on public transport, the journey will take you 30 minutes or so.

  • There are some great places to drop your things at near MDW. Tuck yourself in and get cosy after your SUX to Chicago flight at any of these perfectly located options:

  • Lock in the lowest price by securing your ride from MDW four weeks ahead of time. You can also expect to have a wider selection of vehicles.

  • You can find Chicago Midway International Airport at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • Chicago Rockford International Airport (RFD) is around 145 kilometres from the centre of Chicago. It takes about 1 hour 40 minutes to reach the city centre by taxi or ride-share once you've hopped off your flight from Sioux Gateway Airport to Chicago.

  • If you go by public transport, the journey time is around 2 hours.

  • Find a hotel near RFD and go from landing to lounging in your room in a flash. Whether you're coming in on a late SUX to Chicago flight or just want an easier arrival, these stays put comfort right within reach:

  • If you'd like a specific type of vehicle, booking early gives you a better shot at getting what you want. Secure your ride from RFD at least a few weeks ahead of your flight from Sioux Gateway Airport to Chicago.

  • Chicago Rockford International Airport's address is 2 Airport Cir.

Best time to go to Chicago

  • January is the quietest month for flights from Sioux Gateway Airport to Chicago, while July is the busiest. Find the best time to go to Chicago based on whether you like a bustling atmosphere or a more laid-back vibe.

  • Book a Sioux Gateway Airport to Chicago plane ticket with a departure in July to explore the city during its warmest month. You can expect temperatures to range from 16ºC (61ºF) to 28ºC (82ºF).

  • January has average temperatures of between -12ºC (10ºF) and 3ºC (37ºF). Search for a cheap ticket from SUX to Chicago around that time if you'd rather travel in cooler conditions.

More about Chicago

Explore more of the United States

  • You've seen Chicago, now it's time to discover more of the United States. Travel about 451 kilometres southeast to Columbus to tick off its leading attractions. From Franklin Park Conservatory and Botanical Gardens to Whetstone Park / Park of Roses and Ohio Theatre, there's plenty to keep you busy.

  • Around 257 kilometres southeast of Chicago, Indianapolis is another essential stop in the United States. Start your sightseeing at Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.