$146 Cheap Delta flights Detroit (DTW) to Washington (DCA)

You can find budget-friendly return Delta Air Lines flights from $172 from DTW to DCA by organizing your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $146 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.

Start searching one to three months before your departure to get cheap fares on Delta Air Lines flights from Detroit Metropolitan Wayne County Airport (DTW) to Ronald Reagan Washington National Airport (DCA). 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 cut 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 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.

The first flight from DTW to DCA with Delta Air Lines departs at 7:10AM UTC-5. You'll touch down at 8:58AM UTC-5. The final Delta Air Lines flight of the day takes off at 9:45PM UTC-5 and arrives at 11:23PM UTC-5. With 20% fewer cancellations for morning and mid-morning departures, jetting out early is typically the smartest 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 traveling from DTW to DCA more enjoyable with an excellent in-flight experience and a rewarding loyalty program. You even have the chance to collect points with Delta SkyMiles. Remember to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.