$69 Cheap Delta flights Atlanta (ATL) to Chicago (MDW)

Finding cheap one-way Delta Air Lines flights from ATL to MDW from $69 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares for your next 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.

Search for cheap Delta Air Lines flights from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Midway Intl. Airport (MDW) one to three months ahead of your day of 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 type and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive day is typically 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.

The earliest flight from ATL to MDW with Delta Air Lines departs at 9:16AM UTC-5. You'll touch down at 10:12AM UTC-6. The last Delta Air Lines flight of the day leaves at 9:25PM UTC-5 and arrives at 10:20PM UTC-6. With around 20% fewer cancellations for early and mid-morning flights, setting off early is often the wisest option.**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.

Delta Air Lines makes flying from ATL to MDW more comfortable with a rewarding loyalty program and an excellent in-flight experience. You could even start collecting points with Delta SkyMiles. Don't forget to join Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.