$139 Cheap United flights Chicago (ORD) to Sioux Falls (FSD)

Landing cheap one-way United Airlines flights from ORD to FSD from $139 on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $229 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

United Airlines flights to Sioux Falls are typically more affordable in the quieter months of January and December. Whether you’re in search of a one-way or round-trip ticket, you could land a better deal then.

Search for cheap United Airlines flights from O’Hare Intl. Airport (ORD) to Sioux Falls Regional Airport (FSD) one to three months prior to your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Easily travel from O’Hare Intl. Airport (ORD) to Sioux Falls Regional Airport (FSD) on one of United Airlines’s 19 weekly direct flights. Make use of our “Nonstop” and “Airline” filters to find the United Airlines flight that’ll take you to FSD at your preferred time.

On average, it takes 1h 51m to fly nonstop from O’Hare Intl. Airport (ORD) to Sioux Falls Regional Airport (FSD) with United Airlines.

If you’re looking for flexibility, Thursday offers the most choice for United Airlines flights from O’Hare Intl. Airport (ORD) to Sioux Falls Regional Airport (FSD). You can pick from 3 different departures.

The first flight from ORD to FSD with United Airlines leaves at 8:45AM UTC-6. You’ll land at 10:48AM UTC-6. The last United Airlines flight of the day takes off at 7:43PM UTC-6 and arrives at 9:33PM UTC-6. With around 20% fewer cancellations for early and mid-morning flights, starting your travel day early is typically the smartest option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

United Airlines flights from O’Hare Intl. Airport (ORD) to Sioux Falls land at Sioux Falls Regional Airport (FSD). This is the main gateway here.

Offering a rewarding loyalty program, United Airlines is a top choice for many travelers departing from ORD to FSD. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely board an Embraer 175 or an Airbus A320 when flying United Airlines from O’Hare Intl. Airport (ORD) to Sioux Falls Regional Airport (FSD). However, keep in mind that a different plane could be assigned to your route due to operational requirements.

Depending on your fare type, a fee will generally apply if you cancel or reschedule your booking more than 24 hours after confirmation. To find plane tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes when you look for flights. To learn more about canceling or modifying your reservation, head to “Trips,” select your flight and tick “Manage Booking.”