$99 Cheap United flights Los Angeles (LAX) to Chicago (ORD)

Scoring cheap one-way United Airlines flights from LAX to ORD from $99 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $197 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 Chicago are often cheaper in the quieter months of January and February. Whether you’re in search of a round-trip or one-way ticket, you could find a better deal then.

Search for affordable United Airlines flights from Los Angeles Intl. Airport (LAX) to O’Hare Intl. Airport (ORD) one to three months ahead of your departure. 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 class and journey, the ideal day 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 Los Angeles Intl. Airport (LAX) to O’Hare Intl. Airport (ORD) on one of United Airlines’s 51 weekly direct flights. Use our “Nonstop” and “Airline” filters to find the United Airlines flight that’ll get you to ORD at a time that suits you.

Depart Los Angeles Intl. Airport (LAX) for O’Hare Intl. Airport (ORD) on a nonstop United Airlines flight, and you’ll be in the air for about 4h 12m.

If flexibility is what you’re after, Sunday offers the most choice for United Airlines flights from Los Angeles Intl. Airport (LAX) to O’Hare Intl. Airport (ORD). You can select from 8 different departures.

The first United Airlines flight from LAX to ORD departs at 7:00AM UTC-8, arriving at 1:15PM UTC-6. If you prefer to head off later, the last United Airlines flight leaves LAX at 11:53PM UTC-8 and lands at ORD at 5:54AM UTC-6. Flying earlier is often a good idea as morning flights are least likely to face cancellations.**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.

O’Hare Intl. Airport (ORD) is the main arrival point for United Airlines flights from Los Angeles Intl. Airport (LAX) to Chicago. But this carrier also travels to Midway Intl. Airport (MDW). Be sure to choose Expedia’s “All Airports” option for your destination to see all available choices for your escape in Chicago.

A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to depart from LAX to ORD with United Airlines. Plus, when you join our One Key™ program, you can earn OneKeyCash™* on top of any airline loyalty program earnings. It’s yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely be onboard a Boeing 757-300 or an Airbus A321neo when flying United Airlines from Los Angeles Intl. Airport (LAX) to O’Hare Intl. Airport (ORD). However, keep in mind that a different plane may be assigned due to operational requirements.

Changes are often free within 24 hours of booking, but your airline may add a charge after that. For further details about modifying your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your itinerary without additional costs, apply the “Changes included” and “No cancel fee” filters when planning your next break.