Delta Flight 3665 Deals & Information (2026/2027)

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Delta Flight 3665 Route Deals From $303

The cheapest prices found with in the last 7 days for return flights were $399 and $303 for one-way flights to Detroit Metropolitan Wayne County for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 19 - Sun, Sep 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$399 Roundtrip, found 6 days ago
$399
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Sep 19 from Dane County Regional to Detroit Metropolitan Wayne County, returning Sun, Sep 20, priced at $399 found 6 days ago
Fri, Oct 2 - Tue, Oct 6
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$409 Roundtrip, just found
$409
Roundtrip
just found
Select Delta flight, departing Fri, Oct 2 from Dane County Regional to Detroit Metropolitan Wayne County, returning Tue, Oct 6, priced at $409 just found
Fri, Sep 18 - Sun, Sep 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$415 Roundtrip, found 7 hours ago
$415
Roundtrip
found 7 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 7 hours ago
Fri, Sep 18 - Sun, Sep 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$451 Roundtrip, found 7 hours ago
$451
Roundtrip
found 7 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 7 hours ago
Fri, Oct 2 - Tue, Oct 6
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$454 Roundtrip, just found
$454
Roundtrip
just found
Select Delta flight, departing Fri, Oct 2 from Dane County Regional to Detroit Metropolitan Wayne County, returning Tue, Oct 6, priced at $454 just found
Fri, Sep 18 - Sun, Sep 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$476 Roundtrip, found 7 hours ago
$476
Roundtrip
found 7 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 7 hours ago
Fri, Oct 2 - Tue, Oct 6
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$484 Roundtrip, just found
$484
Roundtrip
just found
Select Delta flight, departing Fri, Oct 2 from Dane County Regional to Detroit Metropolitan Wayne County, returning Tue, Oct 6, priced at $484 just found
Fri, Sep 18 - Sun, Sep 20
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$491 Roundtrip, found 7 hours ago
$491
Roundtrip
found 7 hours ago
Select Delta flight, departing Fri, Sep 18 from Dane County Regional to Detroit Metropolitan Wayne County, returning Sun, Sep 20, priced at $491 found 7 hours ago
Fri, Oct 2 - Tue, Oct 6
MSN
Dane County Regional
DTW
Detroit Metropolitan Wayne County
$498 Roundtrip, just found
$498
Roundtrip
just found
Select Delta flight, departing Fri, Oct 2 from Dane County Regional to Detroit Metropolitan Wayne County, returning Tue, Oct 6, priced at $498 just found

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.