Southwest® flights to San Diego starting at $49

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Popular flights to San Diego on Southwest Airlines

$

San Francisco (SFO)to

San Diego (SAN)
Depart: 02/25/2026
From
$49
Seen: 16 hrs ago
One-way
Basic

Phoenix (PHX)to

San Diego (SAN)
Depart: 02/28/2026
From
$50
Seen: 23 hrs ago
One-way
Basic

Denver (DEN)to

San Diego (SAN)
Depart: 02/26/2026
From
$59
Seen: 20 hrs ago
One-way
Basic

Las Vegas (LAS)to

San Diego (SAN)
Depart: 03/03/2026
From
$59
Seen: 7 hrs ago
One-way
Basic

Dallas (Love Field) (DAL)to

San Diego (SAN)
Depart: 02/21/2026
From
$62
Seen: 2 hrs ago
One-way
Basic

Chicago (Midway) (MDW)to

San Diego (SAN)
Depart: 02/21/2026
From
$66
Seen: 20 hrs ago
One-way
Basic

Sacramento (SMF)to

San Diego (SAN)
Depart: 02/28/2026
From
$69
Seen: 8 hrs ago
One-way
Basic

San Jose, CA (SJC)to

San Diego (SAN)
Depart: 02/25/2026
From
$69
Seen: 15 hrs ago
One-way
Basic

Reno/Tahoe (RNO)to

San Diego (SAN)
Depart: 02/25/2026
From
$69
Seen: 23 hrs ago
One-way
Basic

Salt Lake City (SLC)to

San Diego (SAN)
Depart: 02/28/2026
From
$79
Seen: 5 hrs ago
One-way
Basic

Austin (AUS)to

San Diego (SAN)
Depart: 02/28/2026
From
$84
Seen: 23 hrs ago
One-way
Basic

Portland, OR (PDX)to

San Diego (SAN)
Depart: 02/25/2026
From
$89
Seen: 9 hrs ago
One-way
Basic

Oakland (OAK)to

San Diego (SAN)
Depart: 03/03/2026
From
$105
Seen: 12 hrs ago
One-way
Basic

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 03/03/2026
From
$119
Seen: 10 hrs ago
One-way
Basic

Kansas City (MCI)to

San Diego (SAN)
Depart: 02/21/2026
From
$132
Seen: 2 hrs ago
One-way
Basic

St. Louis (STL)to

San Diego (SAN)
Depart: 02/24/2026
From
$159
Seen: 12 hrs ago
One-way
Basic

Albuquerque (ABQ)to

San Diego (SAN)
Depart: 02/27/2026
From
$169
Seen: 21 hrs ago
One-way
Basic

Nashville (BNA)to

San Diego (SAN)
Depart: 03/02/2026
From
$172
Seen: 7 hrs ago
One-way
Basic

San Antonio (SAT)to

San Diego (SAN)
Depart: 02/21/2026
From
$175
Seen: 46 minutes ago
One-way
Basic

Houston (Hobby) (HOU)to

San Diego (SAN)
Depart: 03/03/2026
From
$205
Seen: 7 hrs ago
One-way
Basic

*Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

Visit San Diego

Can’t-miss Things to Do in San Diego

  • Balboa Park: Spend a day exploring this sprawling cultural oasis that features gardens, museums, and the San Diego Zoo
  • La Jolla Cove: Explore this picturesque coastal spot perfect for snorkeling, kayaking, and spotting marine life
  • Gaslamp Quarter: Stroll this lively historic district famous for its Victorian-style architecture, dining, and vibrant nightlife

Best Parks in San Diego

  • Waterfront Park: Take in scenic vistas, splash in fountains, and spread out for a picnic in the heart of downtown San Diego
  • Mission Trails Regional Park: Trek to this ideal hiking spot in San Diego boasting more than 60 miles of trails and stunning natural landscape views

Museums and Cultural Events in San Diego

  • San Diego Museum of Art: Located in Balboa Park, here you can peruse an expansive collection of artistic masterpieces
  • USS Midway Museum: Get a unique look at naval history at this aircraft-carrier-turned-museum
  • San Diego Museum of Us: Explore anthropology exhibits that illuminate cultural experiences from around the globe

Got flexible travel plans?

Use our Low Fare Calendar to find the lowest fares on flights to Cancun available inside your travel window.

Find flights

Details about San Diego International Airport

San Diego airport
Airport code:
SAN
City:
San Diego
State:
California
Concourse:
Terminal 1
Gates:
Gates 1, 1a, 2-11
Airport-provided WiFi
Cities with weekly flights from SAN:
119†
Cities with daily nonstop flights Monday through Friday from SAN:
33‡
Cities with daily nonstop flights Saturday through Sunday from SAN:
67§

† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 10/1/2025 and 10/31/2025. Note: route may not operate every day of the week.

‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 10/1/2025 and 10/31/2025.

Find cheap flights to San Diego

$

Oakland (OAK)to

San Diego (SAN)
Depart: 04/22/2026

One-way

Basic

From
$49
Seen: 5 hrs ago

San Francisco (SFO)to

San Diego (SAN)
Depart: 04/07/2026

One-way

Basic

From
$49
Seen: 22 hrs ago

Phoenix (PHX)to

San Diego (SAN)
Depart: 05/02/2026

One-way

Basic

From
$50
Seen: 20 hrs ago

Denver (DEN)to

San Diego (SAN)
Depart: 02/24/2026

One-way

Basic

From
$59
Seen: 23 hrs ago

Las Vegas (LAS)to

San Diego (SAN)
Depart: 03/19/2026

One-way

Basic

From
$59
Seen: 21 hrs ago

Dallas (Love Field) (DAL)to

San Diego (SAN)
Depart: 02/21/2026

One-way

Basic

From
$62
Seen: 2 hrs ago

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