Flights from St. Louis to San Diego

Cheapest flights from St. Louis

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.

Thu, Jul 10 - Wed, Jul 16

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$355 Roundtrip, found 1 day ago

$355

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Lambert-St. Louis Intl. to San Diego Intl., returning Wed, Jul 16, priced at $355 found 1 day ago

Fri, Jul 11 - Wed, Jul 16

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$359 Roundtrip, found 1 day ago

$359

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Lambert-St. Louis Intl. to San Diego Intl., returning Wed, Jul 16, priced at $359 found 1 day ago

Thu, Jul 31 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$366 Roundtrip, found 1 hour ago

$366

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Aug 3, priced at $366 found 1 hour ago

Fri, Jul 11 - Thu, Jul 17

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$370 Roundtrip, found 1 day ago

$370

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Lambert-St. Louis Intl. to San Diego Intl., returning Thu, Jul 17, priced at $370 found 1 day ago

Sat, Jul 12 - Wed, Jul 16

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$374 Roundtrip, found 1 day ago

$374

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Jul 12 from Lambert-St. Louis Intl. to San Diego Intl., returning Wed, Jul 16, priced at $374 found 1 day ago

Sat, Jul 12 - Thu, Jul 17

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$385 Roundtrip, found 1 day ago

$385

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Jul 12 from Lambert-St. Louis Intl. to San Diego Intl., returning Thu, Jul 17, priced at $385 found 1 day ago

Thu, Jul 31 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$397 Roundtrip, found 1 hour ago

$397

Roundtrip

found 1 hour ago

Select Delta flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Aug 3, priced at $397 found 1 hour ago

Thu, Jul 10 - Sun, Jul 20

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$410 Roundtrip, found 1 day ago

$410

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Jul 20, priced at $410 found 1 day ago

Thu, Jul 31 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$413 Roundtrip, found 1 hour ago

$413

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Aug 3, priced at $413 found 1 hour ago

Fri, Jul 11 - Sun, Jul 20

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$414 Roundtrip, found 1 day ago

$414

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Jul 20, priced at $414 found 1 day ago

Thu, Jul 31 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$425 Roundtrip, found 1 hour ago

$425

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Aug 3, priced at $425 found 1 hour ago

Thu, Jul 10 - Sat, Jul 19

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$425 Roundtrip, found 1 day ago

$425

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Lambert-St. Louis Intl. to San Diego Intl., returning Sat, Jul 19, priced at $425 found 1 day ago

Fri, Jul 11 - Sat, Jul 19

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$429 Roundtrip, found 1 day ago

$429

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Lambert-St. Louis Intl. to San Diego Intl., returning Sat, Jul 19, priced at $429 found 1 day ago

Mon, Jul 14 - Tue, Jul 15

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$431 Roundtrip, found 1 day ago

$431

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jul 14 from Lambert-St. Louis Intl. to San Diego Intl., returning Tue, Jul 15, priced at $431 found 1 day ago

Thu, Jul 31 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$432 Roundtrip, found 1 hour ago

$432

Roundtrip

found 1 hour ago

Select United flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Aug 3, priced at $432 found 1 hour ago

Thu, Jul 31 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$491 Roundtrip, found 1 hour ago

$491

Roundtrip

found 1 hour ago

Select Delta flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Aug 3, priced at $491 found 1 hour ago

Thu, Jul 31 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$491 Roundtrip, found 1 hour ago

$491

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Aug 3, priced at $491 found 1 hour ago

Tue, Jul 15 - Tue, Jul 22

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$543 Roundtrip, found 1 day ago

$543

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Jul 15 from Lambert-St. Louis Intl. to San Diego Intl., returning Tue, Jul 22, priced at $543 found 1 day ago

Tue, Jul 15 - Wed, Jul 16

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$543 Roundtrip, found 1 day ago

$543

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Tue, Jul 15 from Lambert-St. Louis Intl. to San Diego Intl., returning Wed, Jul 16, priced at $543 found 1 day ago

Thu, Jul 31 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$589 Roundtrip, found 1 hour ago

$589

Roundtrip

found 1 hour ago

Select United flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Aug 3, priced at $589 found 1 hour ago