$170 Cheap United flights Sacramento (SMF) to Chicago (ORD)

You can discover cheap round-trip United Airlines flights from $339 from SMF to ORD by filtering your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $170 for a one-way trip.**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 Chicago are usually cheaper in the quieter months of January and February. Whether you’re in search of a one-way or a return ticket, you could find a better deal then.

For cheap United Airlines fares from Sacramento Intl. Airport (SMF) to O’Hare Intl. Airport (ORD), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the overall cost. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**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.

Take off on one of United Airlines’s 14 weekly direct flights from Sacramento Intl. Airport (SMF) to O’Hare Intl. Airport (ORD). To see what’s available, enter your origin, destination and dates and hit search. Then select the “Nonstop” and “Airline” filters.

It takes approximately 4h 11m to fly nonstop from Sacramento Intl. Airport (SMF) to O’Hare Intl. Airport (ORD) with United Airlines.

If flexibility is what you’re after, Monday offers the most choice for United Airlines flights from Sacramento Intl. Airport (SMF) to O’Hare Intl. Airport (ORD). You can pick from 2 different departures.

The earliest flight from SMF to ORD with United Airlines leaves at 7:00AM UTC-8. You’ll touch down at 1:11PM UTC-6. The last United Airlines flight of the day leaves at 10:45AM UTC-8 and arrives at 4:58PM UTC-6. With approximately 20% fewer cancellations for departures before noon, beginning your travel day early is generally the best way to go.**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 Sacramento Intl. Airport (SMF) to Chicago touch down at O’Hare Intl. Airport (ORD) and Midway Intl. Airport (MDW). The main Chicago hub served by this airline is ORD. It’s worth comparing flights arriving at nearby airports on Expedia as you may find lower prices.

A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to travel from SMF to ORD with United Airlines. Plus, when you sign up to our One Key™ program, you can earn OneKeyCash™* alongside United Airlines’s loyalty program earnings. It’s yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the Sacramento Intl. Airport (SMF) to O’Hare Intl. Airport (ORD) route, United Airlines typically uses Boeing 737 MAX 9 and Airbus A320 planes. Don’t forget that last-minute changes can occur for operational demands, meaning your flight could be on a different aircraft.

Depending on the type of ticket you purchased, a fee generally applies if you change or cancel your booking more than 24 hours after confirmation. To secure flexible fares, select our “Changes included” and “No cancel fee” boxes when you search for flights. For additional information on canceling or changing your reservation, go to “Trips,” select your flight and click on “Manage Booking.”