Cheap Flights from Detroit (DTW) to Washington (IAD)

Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip flights between DTW and IAD start from AU$298. Make your booking ASAP to score the best price for your adventure. Prices and availability are subject to change. Additional terms apply.

Every airline has a different set of terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Metro Airport to Washington Dulles Intl. Airport (IAD) flights, you'll see a "no change fees" filter for you to select.

With a flight distance of 620 kilometres, it's just a short hop from Metro Airport to Dulles Intl. Airport. It might be a quick journey, but it's still worth bringing a good book to read.

A popular airline that flies from DTW to IAD is United Airlines (UA). It offers 121 flights monthly. Offering 99 flights per month on this route, Delta Air Lines (DL) is another good choice.

Late planners can sometimes find a bargain, with some super cheap fares from Detroit Metro Airport to IAD emerging a few weeks before the date of departure. If you'd rather book ahead, Expedia compares and updates all the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not every airline advertises prices that far in advance.