Southwest Airlines Airlines Roundtrip Flight: Sacramento to San Diego from $97 (Travel August - January 2026)

Southwest Airlines have round trip airfares travelling to and from Sacramento (SMF) and San Diego (SAN) for $97, nonstop. These are basic fares that only allow a personal item and a carry-on bag. There is no more free checked bag. The first checked bag is $35. Travel Availability: Departs SMF: Aug 5-6, 9, 11-14, 16, 18-21, 23, 25-27, 30; Sept 1-4, 6, 8-11, 13, 15-18, 20, 22-25, 27, 29-30; Oct 1-2, 4, 6-9, 11, 13-16, 18, 20-23, 25, 27-30; Nov 1, 3-6, 10-13, 15, 17-19; Dec 6, 8-9, 15-16; Jan 6-8, 10, 12-15, 17, 19-22, 24, 26;