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

You’ll discover affordable round-trip Delta Air Lines flights from $191 from BWI to MDW by sorting your results from “Price (lowest to highest)” on Expedia. Or look for options from $99 for a one-way journey.**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.

Delta Air Lines flights to Chicago are usually more affordable in the quieter months of January and February. Whether you need a one-way or a return ticket, you could find a better deal then.

Start searching one to three months before your departure to get cheap fares on Delta Air Lines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Midway Intl. Airport (MDW). 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 your timing right, and you can enjoy significant savings on domestic journeys.*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.

Use our “Nonstop” filter when looking for direct Delta Air Lines flights from BWI to MDW. It’s also a great way to compare other airlines servicing the same direct route.

Search Delta Air Lines’s earliest flights from BWI to MDW by using our “Morning” and “Early Morning” filters. Not only will you get to where you’re going sooner, early departures also experience 20% fewer 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.

Midway Intl. Airport (MDW) is the main Chicago hub for Delta Air Lines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI).

Traveling from BWI to MDW with Delta Air Lines comes with a host of perks, such as an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn 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.

Changes are usually free within 24 hours of making a booking, but your airline may add a charge after that time. For further information about altering your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your itinerary without extra charges, tick the “Changes included” or “No cancel fee” filter when planning your next getaway.