$99 Cheap Delta flights Chicago (MDW) to Washington (IAD)

You’ll find affordable return Delta Air Lines flights from $197 from MDW to IAD by sorting your results from “Price (lowest to highest)” on Expedia. Or search for deals 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.

January is one of the least expensive months to jet off to Washington with Delta Air Lines. You could also find fantastic deals on one-way and round-trip tickets in February.

Look for cheap Delta Air Lines flights from Midway Intl. Airport (MDW) to Washington Dulles Intl. Airport (IAD) one to three months before 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 class and itinerary, the best day of the week to book a domestic flight is usually 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 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.

To see if there’s a direct journey from MDW to IAD with Delta Air Lines or any other airlines, check the “Nonstop” box when looking for flights.

Search Delta Air Lines’s earliest flights from MDW to IAD by selecting the “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures are also 20% less likely to be canceled.**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.

Washington Dulles Intl. Airport (IAD) is the primary Washington gateway for Delta Air Lines flights from Midway Intl. Airport (MDW).

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

It’s generally possible to cancel or modify your flight, although there may be additional fees if you booked over 24 hours ago. Want to keep your options open? Use our “No cancel fee” or “Changes included” filter to find flights that won’t charge extra if you have to alter your plans. To modify your booking, head to “Trips,” select your flight and click on “Manage Booking” for more details.