Southwest® flights to San Diego starting at $39
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Popular flights to San Diego on Southwest Airlines
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*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
Details about San Diego International 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
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flight_land
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San Francisco (SFO)to
San Diego (SAN)
Depart: 12/10/2025
One-way
Basic
From
$39
Seen: 15 hrs ago
Las Vegas (LAS)to
San Diego (SAN)
Depart: 01/30/2026
One-way
Basic
From
$49
Seen: 8 hrs ago
Salt Lake City (SLC)to
San Diego (SAN)
Depart: 01/07/2026
One-way
Basic
From
$49
Seen: 16 hrs ago
Sacramento (SMF)to
San Diego (SAN)
Depart: 02/04/2026
One-way
Basic
From
$59
Seen: 18 hrs ago
San Jose, CA (SJC)to
San Diego (SAN)
Depart: 12/31/2025
One-way
Basic
From
$59
Seen: 23 hrs ago
Phoenix (PHX)to
San Diego (SAN)
Depart: 01/08/2026
One-way
Basic
From
$59
Seen: 14 hrs ago
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Free inflight WiFi thanks to T-Mobile®.2
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12022–2023 Freddie Awards. 2Where available. Available only on WiFi-enabled designated aircraft. Free WiFi is only for Rapid Rewards® Members.
More Southwest flights to San Diego