Delta Flight 4001 Deals & Information (2026/2027)

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Delta Flight 4001 Route Deals From $187

The cheapest prices found with in the last 7 days for return flights were $284 and $187 for one-way flights to Los Angeles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 21 - Sat, Nov 14
SAN
San Diego Intl.
LAX
Los Angeles Intl.
$284 Roundtrip, found 1 day ago
$284
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 21 from San Diego Intl. to Los Angeles Intl., returning Sat, Nov 14, priced at $284 found 1 day ago

Frequently asked questions

What route does flight number DL4001 take?
DL4001 jets between Salt Lake City, UT Airport (SLC-Salt Lake City Intl.) and Palm Springs Intl. Airport (PSP) directly. This service generally takes 1 hour and 42 minutes.
What kind of plane is on flight number DL4001?
The route for flight number DL4001 is predominantly SLC to Palm Springs Airport, and the Embraer 175 is the aircraft model you'll probably be heading off 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 DL4001 flight with Travelocity, please visit our Customer Service Portal.