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 to Chicago? 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 March.

Direct flights from Sioux City to Chicago

Sioux City to Chicago: Flight information

The things to know before you go.
Cheapest flight foundP18,826
Cheapest month to flyMarch
Average flight time1 hr, 49 mins
Most popular airlineUnited
Average flights per week16

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 P18,826. 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 49 minutes is the average flight time from Sioux City to Chicago.
United and SkyWest Airlines fly direct from Sioux City to Chicago.
As of February 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 March.
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 P18,826.
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, 11 March 2026.
Yes – the average flight time is 1 hour and 49 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 February, the average temperature is usually around -2°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.

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

  • Expect to be travelling for 1 hour 45 minutes. That's the average duration of a direct flight from Sioux Gateway Airport to Chicago.

  • Sioux City (the location of Sioux Gateway Airport) and Chicago share the same timezone — UTC-5.

  • With seven weekly flights between the two airports, Sioux Gateway Airport (SUX) to O'Hare International Airport (ORD) is the most popular route. Catch United Airlines's 07:45 flight to get your journey from SUX to ORD underway.

  • Leave plenty of time to make your SUX to Chicago flight. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.

  • Heading off during a peak period like school or public holidays? Expect longer lines at security and check-in. Play it safe and arrive up to four hours before international flights and two hours before domestic departures.

  • Direct Sioux Gateway Airport to Chicago tickets are available for booking. O'Hare International Airport (ORD) will be your arrival point.

  • Check out the deals with United Airlines. This airline has direct flights from Sioux Gateway Airport to Chicago.

  • Located around 11 kilometres from central Sioux City, SUX can be reached in about 10 minutes by car (depending on traffic). Travelling on public transport will take roughly 30 minutes.

  • Want a relaxed start to your holiday? Stay near SUX. Whether you're taking an early flight from Sioux Gateway Airport to Chicago or want to avoid feeling rushed, these hotels have you covered:

  • Of the departures from Sioux Gateway Airport, 70.0% arrive on time at their destination.

  • You'll find SUX at 2403 Odgen Road.

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

  • The lowest price we've seen for a one-way Sioux Gateway Airport to Chicago flight is P12,602. The cheapest price for a return flight is P18,826. Bear in mind fares can change due to demand at the time of booking.

  • To snag cheap flights from SUX to Chicago, reserve your journey six months before your departure.

  • The best month for scoring cheap Sioux Gateway Airport to Chicago tickets is October. Use the 'Whole month' tool to compare prices, then select the dates offering the lowest fares.

  • There's no need to check every day to find out if fares have dropped when you create a Price Alert. We'll let you know the moment there's an even bigger deal on cheap flights from SUX to Chicago.

  • Pick your preferred departure and arrival times, number of stops and airlines with our filters. Then, sort the results for your flight from Sioux Gateway Airport to Chicago by 'Best,' 'Cheapest' or 'Fastest.'

Airports in Chicago

O'Hare International Airport (ORD)

  • O'Hare International Airport (ORD) is around 40 kilometres from the centre of Chicago. If you're opting for a ride-share or a cab, the drive takes about 35 minutes.

  • If you're using public transport, expect a journey time of about 55 minutes.

  • The last thing you need is a lengthy journey to your hotel if you're landing late on a flight from Sioux Gateway Airport to Chicago. Reserve one of these accommodation options near ORD instead:

  • Grab an O'Hare International Airport rental car and explore Chicago and beyond with your own wheels. Routes Car Rentals, Dollar and Budget are popular outlets to choose from here.

  • To get the best deal, book your vehicle from O'Hare International Airport about four weeks ahead of your flight from SUX to Chicago.

  • ORD is located at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Once your flight from Sioux Gateway Airport to Chicago has touched down, you can reach the city centre in about 20 minutes by car. Central Chicago is roughly 19 kilometres from Chicago Midway International Airport (MDW).

  • Public transport will get you there in around 45 minutes.

  • Hang up the 'Do not disturb' sign and relax at a hotel near MDW. Here are a few options where you can check in after your SUX to Chicago flight:

  • Forget about public transport timetables or waiting in a long cab line. Pick up a Chicago Midway International Airport rental car and let the journey unfold your way. Compare rates and availability from Dollar, Hertz and Budget.

  • Get first dibs on the best options. Booking your ride from MDW four weeks in advance often means better deals and a wider choice of vehicles.

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

Chicago Rockford International Airport (RFD)

  • Hop off your flight from Sioux Gateway Airport to Chicago and head straight for your hotel or start sightseeing right away. Central Chicago is around 137 kilometres from Chicago Rockford International Airport (RFD) and usually takes 1 hour 25 minutes to reach by car.

  • The journey takes roughly 4 hours 15 minutes by public transport.

  • If you don't want to make the journey to the centre, choose a hotel near RFD. Get comfortable at one of these stays after your SUX to Chicago flight:

  • Whether you want an economy for a solo escape or a roomy SUV to transport your group, you'll find the right Chicago Rockford International Airport rental car for you. Check out the range of wheels available from suppliers such as Budget, Alamo and National.

  • If you'd like a particular type of vehicle, booking early increases your chances of snagging what you want. Book your ride from RFD at least a few weeks ahead of your flight from Sioux Gateway Airport to Chicago.

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

Best time to go to Chicago

  • Plan your trip to Chicago in peak season if you want a busy atmosphere, but remember that prices are generally higher. Alternatively, book your flights from Sioux Gateway Airport to Chicago during low season when prices are cheaper and it's quieter.

  • When booking your Sioux Gateway Airport to Chicago plane ticket, think about the kind of weather you prefer. July is the warmest month in Chicago, with temperatures ranging from 15ºC (59ºF) to 29ºC (84ºF).

  • Search for cheap tickets from SUX to Chicago in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -12ºC (10ºF) and 3ºC (37ºF) on average.

More about Chicago

Explore more of United States

  • Columbus is just one of the many cities in United States waiting to be discovered after you've experienced Chicago. Around 451 kilometres away to the south-east, check out popular attractions including Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • Around 257 kilometres south-east of Chicago, Indianapolis is another favourite stop in United States. Experience major highlights starting with The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

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