https://www.travelocity.com/lp/flights/dtw/iad/detroit-metropolitan-wayne-county-to-washington-dulles-intl
$97 Flights from Detroit to Washington (DTW to IAD)
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https://www.momondo.com/flights/detroit/washington-dc
$33 Cheap Flights from Detroit to Washington, D.C. in 2026 | momondo
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