Delta Flight 4001 Deals & Information (2026/2027)

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Delta Flight 4001 Route Deals From $234

The cheapest prices found with in the last 7 days for return flights were $239 and $234 for one-way flights to San Diego Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 19 - Tue, Dec 29
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$239 Roundtrip, found 2 days ago
$239
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Dec 19 from Los Angeles Intl. to San Diego Intl., returning Tue, Dec 29, priced at $239 found 2 days ago
Sat, Dec 19 - Tue, Dec 29
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$259 Roundtrip, found 2 days ago
$259
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Dec 19 from Los Angeles Intl. to San Diego Intl., returning Tue, Dec 29, priced at $259 found 2 days ago
Fri, Aug 14 - Sat, Aug 15
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$264 Roundtrip, found 2 days ago
$264
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Aug 14 from Los Angeles Intl. to San Diego Intl., returning Sat, Aug 15, priced at $264 found 2 days ago
Fri, May 8 - Sun, May 10
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$265 Roundtrip, found 3 days ago
$265
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, May 8 from Los Angeles Intl. to San Diego Intl., returning Sun, May 10, priced at $265 found 3 days ago
Fri, Jun 5 - Sun, Jun 7
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$270 Roundtrip, found 12 hours ago
$270
Roundtrip
found 12 hours ago
Select Delta flight, departing Fri, Jun 5 from Los Angeles Intl. to San Diego Intl., returning Sun, Jun 7, priced at $270 found 12 hours ago
Fri, Jun 5 - Sun, Jun 7
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$275 Roundtrip, found 12 hours ago
$275
Roundtrip
found 12 hours ago
Select Delta flight, departing Fri, Jun 5 from Los Angeles Intl. to San Diego Intl., returning Sun, Jun 7, priced at $275 found 12 hours ago
Sat, Dec 19 - Tue, Dec 29
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$279 Roundtrip, found 2 days ago
$279
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Dec 19 from Los Angeles Intl. to San Diego Intl., returning Tue, Dec 29, priced at $279 found 2 days ago
Fri, May 1 - Sat, May 2
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$296 Roundtrip, found 2 days ago
$296
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, May 1 from Los Angeles Intl. to San Diego Intl., returning Sat, May 2, priced at $296 found 2 days ago
Fri, Jun 5 - Sun, Jun 7
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$342 Roundtrip, found 12 hours ago
$342
Roundtrip
found 12 hours ago
Select Delta flight, departing Fri, Jun 5 from Los Angeles Intl. to San Diego Intl., returning Sun, Jun 7, priced at $342 found 12 hours ago
Fri, Jun 5 - Sun, Jun 7
LAX
Los Angeles Intl.
SAN
San Diego Intl.
$347 Roundtrip, found 12 hours ago
$347
Roundtrip
found 12 hours ago
Select Delta flight, departing Fri, Jun 5 from Los Angeles Intl. to San Diego Intl., returning Sun, Jun 7, priced at $347 found 12 hours 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.