$99 Cheap United flights Tulsa (TUL) to Chicago (ORD)

Scoring cheap one-way United Airlines flights from TUL to ORD from $99 on Expedia couldn't be easier --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $186 for your next exciting adventure.**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.

Start searching one to three months ahead of your departure date to get cheap fares on United Airlines flights from Tulsa Intl. Airport (TUL) to O'Hare Intl. Airport (ORD). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic trips.*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.

Setting off from TUL at 7:30AM UTC-6, the earliest United Airlines flight to ORD arrives at 9:39AM UTC-6. Traveling earlier in the day means you're less likely to encounter cancellations or delays.* Don't like early starts? The last United Airlines flight from TUL to ORD departs at 1:55PM UTC-6 and touches down at 4:01PM UTC-6.*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.

Offering a rewarding loyalty program, United Airlines is a popular choice for many travelers flying from TUL to ORD. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you could 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.