Lowest Priced Flights to San Diego on Alaska Airlines starting at $16*

Most popular flights to San Diego on Alaska Airlines.*

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Seattle (SEA)to

San Diego (SAN)
Depart: Jun 8, 2026
From
$28
Seen: 8 hours ago
One-way
Saver

Seattle (SEA)to

San Diego (SAN)
Depart: Jun 6, 2026
From
$99
Seen: 14 hours ago
One-way
Saver

Seattle (SEA)to

San Diego (SAN)
Depart: Jun 9, 2026
From
$99
Seen: 1 hour ago
One-way
Saver

Seattle (SEA)to

San Diego (SAN)
Depart: Jun 7, 2026
From
$109
Seen: 2 hours ago
One-way
Saver

Seattle (SEA)to

San Diego (SAN)
Depart: Jun 10, 2026
From
$123
Seen: 3 hours ago
One-way
Saver

Portland (PDX)to

San Diego (SAN)
Depart: Jun 3, 2026
From
$69
Seen: 14 hours ago
One-way
Saver

Portland (PDX)to

San Diego (SAN)
Depart: Jun 6, 2026
From
$69
Seen: 1 hour ago
One-way
Saver

Portland (PDX)to

San Diego (SAN)
Depart: Jun 10, 2026
From
$93
Seen: 5 hours ago
One-way
Saver

Portland (PDX)to

San Diego (SAN)
Depart: Jun 4, 2026
From
$109
Seen: 3 hours ago
One-way
Saver

Portland (PDX)to

San Diego (SAN)
Depart: Jun 5, 2026
From
$109
Seen: 1 hour ago
One-way
Saver

San Francisco (SFO)to

San Diego (SAN)
Depart: May 23, 2026
From
$16
Seen: 1 hour ago
One-way
Saver

San Francisco (SFO)to

San Diego (SAN)
Depart: Jun 9, 2026
From
$59
Seen: 14 hours ago
One-way
Saver

San Francisco (SFO)to

San Diego (SAN)
Depart: Jun 3, 2026
From
$59
Seen: 14 hours ago
One-way
Saver

San Francisco (SFO)to

San Diego (SAN)
Depart: Jun 10, 2026
From
$59
Seen: 14 hours ago
One-way
Saver

San Francisco (SFO)to

San Diego (SAN)
Depart: Jun 7, 2026
From
$89
Seen: 14 hours ago
One-way
Saver

Sacramento (SMF)to

San Diego (SAN)
Depart: Jun 3, 2026
From
$59
Seen: 14 hours ago
One-way
Saver

Sacramento (SMF)to

San Diego (SAN)
Depart: Jun 9, 2026
From
$59
Seen: 14 hours ago
One-way
Saver

Sacramento (SMF)to

San Diego (SAN)
Depart: Jun 10, 2026
From
$59
Seen: 1 hour ago
One-way
Saver

Sacramento (SMF)to

San Diego (SAN)
Depart: Jun 11, 2026
From
$89
Seen: 14 hours ago
One-way
Saver

Sacramento (SMF)to

San Diego (SAN)
Depart: Jun 8, 2026
From
$89
Seen: 14 hours ago
One-way
Saver

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

Top offers for San Diego one-way flights.*

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Top offers for San Diego one-way flights.*
From
To
Fare Type
Dates
Price
San Francisco (SFO)San Diego (SAN)One-way
|
Saver
Depart: Sep 1, 2026

From

$59

Seen: 14 hours ago

San Francisco (SFO)San Diego (SAN)One-way
|
Saver
Depart: Sep 8, 2026

From

$59

Seen: 14 hours ago

San Francisco (SFO)San Diego (SAN)One-way
|
Saver
Depart: Sep 15, 2026

From

$59

Seen: 14 hours ago

San Francisco (SFO)San Diego (SAN)One-way
|
Saver
Depart: Nov 3, 2026

From

$59

Seen: 14 hours ago

San Francisco (SFO)San Diego (SAN)One-way
|
Saver
Depart: Aug 19, 2026

From

$59

Seen: 14 hours ago

San Francisco (SFO)San Diego (SAN)One-way
|
Saver
Depart: Aug 26, 2026

From

$59

Seen: 14 hours ago

Sacramento (SMF)San Diego (SAN)One-way
|
Saver
Depart: Aug 18, 2026

From

$59

Seen: 14 hours ago

Sacramento (SMF)San Diego (SAN)One-way
|
Saver
Depart: Aug 26, 2026

From

$59

Seen: 14 hours ago

Sacramento (SMF)San Diego (SAN)One-way
|
Saver
Depart: Sep 1, 2026

From

$59

Seen: 14 hours ago

Sacramento (SMF)San Diego (SAN)One-way
|
Saver
Depart: Sep 16, 2026

From

$59

Seen: 14 hours ago

Sacramento (SMF)San Diego (SAN)One-way
|
Saver
Depart: Sep 23, 2026

From

$59

Seen: 14 hours ago

Sacramento (SMF)San Diego (SAN)One-way
|
Saver
Depart: Sep 29, 2026

From

$59

Seen: 14 hours ago

Fresno (FAT)San Diego (SAN)One-way
|
Saver
Depart: Sep 15, 2026

From

$59

Seen: 14 hours ago

Fresno (FAT)San Diego (SAN)One-way
|
Saver
Depart: Sep 16, 2026

From

$59

Seen: 14 hours ago

Fresno (FAT)San Diego (SAN)One-way
|
Saver
Depart: Sep 23, 2026

From

$59

Seen: 14 hours ago

Fresno (FAT)San Diego (SAN)One-way
|
Saver
Depart: Sep 30, 2026

From

$59

Seen: 14 hours ago

Fresno (FAT)San Diego (SAN)One-way
|
Saver
Depart: Oct 6, 2026

From

$59

Seen: 14 hours ago

Fresno (FAT)San Diego (SAN)One-way
|
Saver
Depart: Oct 14, 2026

From

$59

Seen: 14 hours ago

San Jose (SJC)San Diego (SAN)One-way
|
Saver
Depart: Jun 30, 2026

From

$59

Seen: 14 hours ago

San Jose (SJC)San Diego (SAN)One-way
|
Saver
Depart: Aug 19, 2026

From

$59

Seen: 14 hours ago

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

Plan a trip to San Diego

San Diego is a sun-soaked Southern California city known for its laid-back vibe, stunning beaches, and some of the best tacos you'll find in the United States. Often called “America’s Finest City,” San Diego blends outdoor adventure with urban sophistication. From the historic Gaslamp Quarter to the scenic cliffs of La Jolla, there's a little something for everyone in San Diego. Few cities balance coastal charm and cultural depth quite like San Diego. Come discover it for yourself


Things to do in San Diego

  • Relax on the sandy shores of Coronado Beach, Mission Beach, or Pacific Beach.
  • Visit the San Diego Zoo and Safari Park, home to thousands of rare and endangered animals.
  • Stroll through Balboa Park, a cultural oasis with museums, gardens, and Spanish-inspired architecture.
  • Explore the Gaslamp Quarter’s lively nightlife, dining, and historic charm.
  • Go tide pooling or kayaking in the sea caves of La Jolla.
  • Tour the USS Midway Museum and learn about San Diego’s naval history on a real aircraft carrier.

Best time to travel to San Diego

San Diego is a year-round destination with mild weather, but the best times to visit are spring (March to May) and fall (September to November) when the weather is pleasant, crowds are lighter, and hotel prices are more affordable. Summer brings vibrant beach scenes and festivals, while winter offers a quieter coastal escape with plenty of sunshine.


Flying into San Diego International Airport (SAN)

View airport information for the San Diego International Airport (SAN)

Not the beach destination you’re looking for? View more California flight deals from Alaska Airlines.

Top San Diego routes with Alaska Airlines