Delta Flight DL3665 Deals & Information (2025/2026)

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Delta Flight 3665 Route Deals From $214

The cheapest prices found with in the last 7 days for return flights were $289 and $214 for one-way flights to Hartsfield-Jackson Atlanta Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

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.