Flights from New Castle to San Diego

Cheapest flights from New Castle

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 30 - Wed, Sep 3

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$268 Roundtrip, just found

$268

Roundtrip

just found

Select Frontier Airlines flight, departing Sat, Aug 30 from Philadelphia Intl. to San Diego Intl., returning Wed, Sep 3, priced at $268 just found

Tue, Sep 30 - Sun, Oct 5

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$273 Roundtrip, found 3 days ago

$273

Roundtrip

found 3 days ago

Select JetBlue Airways flight, departing Tue, Sep 30 from Philadelphia Intl. to San Diego Intl., returning Sun, Oct 5, priced at $273 found 3 days ago

Fri, Sep 5 - Wed, Sep 10

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$276 Roundtrip, found 4 days ago

$276

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Fri, Sep 5 from Philadelphia Intl. to San Diego Intl., returning Wed, Sep 10, priced at $276 found 4 days ago

Fri, Sep 5 - Wed, Sep 10

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$278 Roundtrip, found 4 days ago

$278

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Fri, Sep 5 from Philadelphia Intl. to San Diego Intl., returning Wed, Sep 10, priced at $278 found 4 days ago

Wed, Aug 27 - Thu, Sep 4

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$282 Roundtrip, just found

$282

Roundtrip

just found

Select Spirit Airlines flight, departing Wed, Aug 27 from Philadelphia Intl. to San Diego Intl., returning Thu, Sep 4, priced at $282 just found

Wed, Oct 1 - Mon, Oct 6

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$282 Roundtrip, found 3 days ago

$282

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Wed, Oct 1 from Philadelphia Intl. to San Diego Intl., returning Mon, Oct 6, priced at $282 found 3 days ago

Mon, Oct 20 - Wed, Oct 22

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$285 Roundtrip, found 2 days ago

$285

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Mon, Oct 20 from Philadelphia Intl. to San Diego Intl., returning Wed, Oct 22, priced at $285 found 2 days ago

Wed, Oct 1 - Mon, Oct 6

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$286 Roundtrip, found 3 days ago

$286

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Wed, Oct 1 from Philadelphia Intl. to San Diego Intl., returning Mon, Oct 6, priced at $286 found 3 days ago

Sat, Aug 30 - Thu, Sep 4

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$288 Roundtrip, just found

$288

Roundtrip

just found

Select Frontier Airlines flight, departing Sat, Aug 30 from Philadelphia Intl. to San Diego Intl., returning Thu, Sep 4, priced at $288 just found

Sat, Sep 6 - Wed, Sep 10

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$291 Roundtrip, found 8 hours ago

$291

Roundtrip

found 8 hours ago

Select American Airlines flight, departing Sat, Sep 6 from Philadelphia Intl. to San Diego Intl., returning Wed, Sep 10, priced at $291 found 8 hours ago

Fri, Sep 5 - Wed, Sep 10

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$292 Roundtrip, found 4 days ago

$292

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Sep 5 from Philadelphia Intl. to San Diego Intl., returning Wed, Sep 10, priced at $292 found 4 days ago

Mon, Sep 1 - Thu, Sep 4

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$296 Roundtrip, just found

$296

Roundtrip

just found

Select Spirit Airlines flight, departing Mon, Sep 1 from Philadelphia Intl. to San Diego Intl., returning Thu, Sep 4, priced at $296 just found

Wed, Aug 27 - Tue, Sep 9

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$297 Roundtrip, just found

$297

Roundtrip

just found

Select Spirit Airlines flight, departing Wed, Aug 27 from Philadelphia Intl. to San Diego Intl., returning Tue, Sep 9, priced at $297 just found

Fri, Sep 5 - Wed, Sep 10

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$298 Roundtrip, found 4 days ago

$298

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Sep 5 from Philadelphia Intl. to San Diego Intl., returning Wed, Sep 10, priced at $298 found 4 days ago

Sat, Sep 6 - Wed, Sep 10

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$305 Roundtrip, found 8 hours ago

$305

Roundtrip

found 8 hours ago

Select American Airlines flight, departing Sat, Sep 6 from Philadelphia Intl. to San Diego Intl., returning Wed, Sep 10, priced at $305 found 8 hours ago

Mon, Oct 20 - Wed, Oct 22

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$315 Roundtrip, found 2 days ago

$315

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Oct 20 from Philadelphia Intl. to San Diego Intl., returning Wed, Oct 22, priced at $315 found 2 days ago

Wed, Oct 1 - Tue, Oct 7

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$324 Roundtrip, found 3 days ago

$324

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Wed, Oct 1 from Philadelphia Intl. to San Diego Intl., returning Tue, Oct 7, priced at $324 found 3 days ago

Wed, Oct 22 - Sat, Oct 25

PHL

Philadelphia Intl.

CLD

McClellan-Palomar

$325 Roundtrip, found 3 days ago

$325

Roundtrip

found 3 days ago

Select American Airlines flight, departing Wed, Oct 22 from Philadelphia Intl. to McClellan-Palomar, returning Sat, Oct 25, priced at $325 found 3 days ago

Sat, Sep 6 - Wed, Sep 10

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$325 Roundtrip, found 8 hours ago

$325

Roundtrip

found 8 hours ago

Select United flight, departing Sat, Sep 6 from Philadelphia Intl. to San Diego Intl., returning Wed, Sep 10, priced at $325 found 8 hours ago

Mon, Oct 20 - Wed, Oct 22

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$400 Roundtrip, found 2 days ago

$400

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Mon, Oct 20 from Philadelphia Intl. to San Diego Intl., returning Wed, Oct 22, priced at $400 found 2 days ago