Delta Flight 3665 Deals & Information (2026/2027)

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Delta Flight 3665 Route Deals From $306

The cheapest prices found with in the last 7 days for return flights were $409 and $306 for one-way flights to Detroit Metropolitan Wayne County for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Dec 18 - Wed, Jan 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$409 Roundtrip, found 3 days ago
$409
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Dec 18 from Dane County Regional to Detroit Metropolitan Wayne County, returning Wed, Jan 20, priced at $409 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$415 Roundtrip, found 3 hours ago
$415
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Sep 18 from Dane County Regional to Detroit Metropolitan Wayne County, returning Sun, Sep 20, priced at $415 found 3 hours ago
Fri, Oct 2 - Sun, Oct 4
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$444 Roundtrip, found 4 days ago
$444
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Oct 2 from Dane County Regional to Detroit Metropolitan Wayne County, returning Sun, Oct 4, priced at $444 found 4 days ago
Fri, Sep 18 - Sun, Sep 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$451 Roundtrip, found 3 hours ago
$451
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Sep 18 from Dane County Regional to Detroit Metropolitan Wayne County, returning Sun, Sep 20, priced at $451 found 3 hours ago
Fri, Sep 18 - Sun, Sep 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$476 Roundtrip, found 3 hours ago
$476
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Sep 18 from Dane County Regional to Detroit Metropolitan Wayne County, returning Sun, Sep 20, priced at $476 found 3 hours ago
Fri, Oct 9 - Mon, Oct 12
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$479 Roundtrip, found 5 days ago
$479
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Oct 9 from Dane County Regional to Detroit Metropolitan Wayne County, returning Mon, Oct 12, priced at $479 found 5 days ago
Fri, Oct 9 - Sun, Oct 11
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$484 Roundtrip, found 3 days ago
$484
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Oct 9 from Dane County Regional to Detroit Metropolitan Wayne County, returning Sun, Oct 11, priced at $484 found 3 days ago
Fri, Oct 2 - Sun, Oct 4
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$499 Roundtrip, found 4 days ago
$499
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Oct 2 from Dane County Regional to Detroit Metropolitan Wayne County, returning Sun, Oct 4, priced at $499 found 4 days ago
Sat, Sep 5 - Tue, Sep 8
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$502 Roundtrip, found 6 days ago
$502
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Sep 5 from Dane County Regional to Detroit Metropolitan Wayne County, returning Tue, Sep 8, priced at $502 found 6 days ago
Fri, Sep 18 - Sun, Sep 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$506 Roundtrip, found 3 hours ago
$506
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Sep 18 from Dane County Regional to Detroit Metropolitan Wayne County, returning Sun, Sep 20, priced at $506 found 3 hours ago

Frequently asked questions

What route does flight number DL3665 take?
DL3665 serves multiple routes, but the most common is between Salt Lake City, UT Airport (SLC-Salt Lake City Intl.) and Fresno, CA Airport (FAT-Fresno Yosemite Intl.). If your flight is direct, you'll land in 1 hour and 53 minutes. Multi-stop flights can also use this number, as can flights on other routes.
What kind of plane is on flight number DL3665?
DL3665 is a flight number that's used on lots of different routes. If you've booked a ticket on its most popular route, SLC to Fresno Yosemite Intl. Airport, you're likely to be boarding the Bombardier CRJ700.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your DL3665 flight with Travelocity, please visit our Customer Service Portal.