$99 Cheap Delta flights Baltimore (BWI) to Chicago (ORD)

Make use of the “Price (lowest to highest)” filter on Expedia to search for cheap Delta Air Lines round-trip flights from $191 from BWI to ORD. Affordable one-way options from $99 are available as well.**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.

January is one of the cheapest months to fly to Chicago with Delta Air Lines. You could also find excellent prices on one-way and round-trip tickets in February.

Look for affordable Delta Air Lines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to O’Hare Intl. Airport (ORD) one to three months ahead of 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. No matter the fare class and journey, the best day to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book 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.

Fill in your dates, click search and check the “Nonstop” filter on Expedia to browse any direct flights from BWI to ORD with Delta Air Lines or another airline.

To find the earliest departures from BWI to ORD with Delta Air Lines, filter your search by “Morning” and “Early Morning.” Booking an early flight usually means you’re less likely to experience 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 primary Chicago hub for Delta Air Lines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI).

Traveling from BWI to ORD with Delta Air Lines comes with a range of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That’s in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s generally possible to change or cancel your flight, although additional charges may apply if you made your booking more than 24 hours ago. Need flexible options? Apply the “Changes included” and “No cancel fee” filters to find flights that won’t penalize you if you need to alter your plans. To make modifications, visit “Trips,” select your flight and click on “Manage Booking” for further information.