Delta Flight DL665 Deals & Information (2025/2026)

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Delta Flight 665 Route Deals From $243

The cheapest prices found with in the last 7 days for return flights were $399 and $243 for one-way flights to Los Angeles - Ontario Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Oct 6 - Wed, Oct 15
ATL
Hartsfield-Jackson Atlanta Intl.
ONT
Los Angeles - Ontario Intl.
$399 Roundtrip, found 6 hours ago
$399
Roundtrip
found 6 hours ago
Select Delta flight, departing Mon, Oct 6 from Hartsfield-Jackson Atlanta Intl. to Los Angeles - Ontario Intl., returning Wed, Oct 15, priced at $399 found 6 hours ago

Frequently asked questions

What route does flight number DL665 take?
DL665 travels from O’Hare Airport to Salt Lake City Intl. Airport (SLC) and flies direct. This trip generally takes 3 hours and 31 minutes.
How often is DL665 on time?
Approximately 96% of DL665 flights arrive according to scheduled times — so if you’re jetting between ORD and Salt Lake City Intl. Airport (SLC), you can relax in confidence knowing that you will reach your destination ASAP. On the odd occasion that this Delta trip is late, the average wait is about 13 minutes. Because of the air carrier’s high standard of service, this route has a star rating of 4.8.
What terminal does DL665 fly out of?
DL665 runs between ORD and Salt Lake City Intl. Airport (SLC), and passengers booked on this flight commonly board the aircraft from Terminal 2.
What kind of plane is on flight number DL665?
The route for DL665 is almost always Chicago, IL Airport (ORD-O’Hare Intl.) to SLC, and the Airbus A220-100 is the type of aircraft you’ll probably be traveling on.
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 DL665 flight with Travelocity, please visit our Customer Service Portal.