Delta Flight 3864 Deals & Information (2025/2026)

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Delta Flight 3864 Route Deals From $116

The cheapest prices found with in the last 7 days for return flights were $179 and $116 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 24 - Wed, May 28
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$179 Roundtrip, found 1 day ago
$179
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, May 24 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Wed, May 28, priced at $179 found 1 day ago
Sat, May 24 - Wed, May 28
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$182 Roundtrip, found 1 day ago
$182
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, May 24 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Wed, May 28, priced at $182 found 1 day ago
Sat, May 24 - Sat, Jun 28
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$186 Roundtrip, found 4 days ago
$186
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, May 24 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Sat, Jun 28, priced at $186 found 4 days ago
Mon, Jun 2 - Tue, Jul 1
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$188 Roundtrip, found 2 days ago
$188
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jun 2 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Tue, Jul 1, priced at $188 found 2 days ago
Wed, May 28 - Wed, Jul 2
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$189 Roundtrip, found 4 days ago
$189
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, May 28 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Wed, Jul 2, priced at $189 found 4 days ago
Wed, May 21 - Sun, May 25
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$189 Roundtrip, found 3 days ago
$189
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, May 21 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Sun, May 25, priced at $189 found 3 days ago
Tue, May 27 - Sat, May 31
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$209 Roundtrip, found 4 days ago
$209
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, May 27 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Sat, May 31, priced at $209 found 4 days ago
Thu, Jun 19 - Tue, Jun 24
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$213 Roundtrip, found 19 hours ago
$213
Roundtrip
found 19 hours ago
Select Delta flight, departing Thu, Jun 19 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Tue, Jun 24, priced at $213 found 19 hours ago
Mon, Jun 30 - Sat, Jul 5
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$214 Roundtrip, found 11 hours ago
$214
Roundtrip
found 11 hours ago
Select Delta flight, departing Mon, Jun 30 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Sat, Jul 5, priced at $214 found 11 hours ago
Thu, Jul 3 - Mon, Jul 7
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$218 Roundtrip, found 16 hours ago
$218
Roundtrip
found 16 hours ago
Select Delta flight, departing Thu, Jul 3 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Mon, Jul 7, priced at $218 found 16 hours ago
Fri, Jun 20 - Thu, Jul 31
DTW
Detroit Metropolitan Wayne County
IAD
Washington Dulles Intl.
$228 Roundtrip, found 11 hours ago
$228
Roundtrip
found 11 hours ago
Select Delta flight, departing Fri, Jun 20 from Detroit Metropolitan Wayne County to Washington Dulles Intl., returning Thu, Jul 31, priced at $228 found 11 hours ago