Delta Flight 4001 Deals & Information (2026/2027)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Delta Flight 4001 Route Deals From $169

The cheapest prices found with in the last 7 days for return flights were $209 and $169 for one-way flights to San Diego Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 30 - Mon, Nov 2
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$209 Roundtrip, found 2 hours ago
$209
Roundtrip
found 2 hours ago
Select Delta flight, departing Fri, Oct 30 from Los Angeles Intl. to San Diego Intl., returning Mon, Nov 2, priced at $209 found 2 hours ago
Sat, Sep 5 - Sun, Sep 6
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$212 Roundtrip, found 3 days ago
$212
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Sep 5 from Los Angeles Intl. to San Diego Intl., returning Sun, Sep 6, priced at $212 found 3 days ago
Wed, Oct 7 - Wed, Oct 14
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$234 Roundtrip, found 3 days ago
$234
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Oct 7 from Los Angeles Intl. to San Diego Intl., returning Wed, Oct 14, priced at $234 found 3 days ago
Sun, Sep 6 - Tue, Sep 8
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$238 Roundtrip, found 3 days ago
$238
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Sep 6 from Los Angeles Intl. to San Diego Intl., returning Tue, Sep 8, priced at $238 found 3 days ago
Tue, Aug 25 - Tue, Sep 1
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$247 Roundtrip, found 12 hours ago
$247
Roundtrip
found 12 hours ago
Select Delta flight, departing Tue, Aug 25 from Los Angeles Intl. to San Diego Intl., returning Tue, Sep 1, priced at $247 found 12 hours ago
Thu, Dec 24 - Thu, Dec 31
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Dec 24 from Los Angeles Intl. to San Diego Intl., returning Thu, Dec 31, priced at $249 found 1 day ago
Thu, Sep 24 - Mon, Sep 28
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$268 Roundtrip, found 3 days ago
$268
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Sep 24 from Los Angeles Intl. to San Diego Intl., returning Mon, Sep 28, priced at $268 found 3 days ago
Fri, Aug 21 - Sat, Aug 22
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$283 Roundtrip, found 4 days ago
$283
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Aug 21 from Los Angeles Intl. to San Diego Intl., returning Sat, Aug 22, priced at $283 found 4 days ago
Sat, Sep 5 - Sun, Sep 6
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$283 Roundtrip, found 3 days ago
$283
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Sep 5 from Los Angeles Intl. to San Diego Intl., returning Sun, Sep 6, priced at $283 found 3 days 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.