$49+: Low airfares within California (each way) Southwest Airlines

$99+: Bay Area flights from Phoenix (one-way) Southwest Airlines

$139+: Flights to California via Chicago (one-way) Southwest Airlines

$118+: Discount domestic airfares (round-trip) CheapOair

$287+: San Francisco from Akron (round-trip) Travelocity

$345+: San Francisco from Albany (round-trip) Travelocity

$209+: Albuquerque to San Francisco (round-trip) Travelocity

$355+: San Francisco from Allentown (round-trip) Travelocity

$265+: San Francisco from Atlanta (round-trip) Travelocity

$185+: San Francisco from Austin (round-trip) Major Airlines

$225+: San Francisco from Baltimore (round-trip) Travelocity

$305+: Billings to San Francisco (round-trip) Major Airlines

$325+: San Francisco from Binghamton (round-trip) Major Airlines

$265+: Boise to San Francisco (round-trip) Travelocity

$345+: San Francisco from Boston (round-trip) Travelocity

$234+: San Francisco from Brunswick (round-trip) Major Airlines

$275+: San Francisco from Buffalo (round-trip) Major Airlines

$193+: Burbank to San Francisco (round-trip) Major Airlines

$275+: San Francisco from Burlington (round-trip) Major Airlines

$165+: San Francisco from Carlsbad (round-trip) Major Airlines

$231+: San Francisco from Charlotte (round-trip) Travelocity

$245+: San Francisco from Chicago (round-trip) Major Airlines

$335+: San Francisco from Cleveland (round-trip) Major Airlines

$305+: San Francisco from Colorado Springs (round-trip) Major Airlines

$277+: San Francisco from Dallas (round-trip) Travelocity

$205+: Dayton to San Francisco (round-trip) Travelocity

$165+: Denver to San Francisco (round-trip) Major Airlines

$265+: San Francisco from Detroit (round-trip) Major Airlines

$267+: Durango to San Francisco (round-trip) Travelocity

$185+: El Centro to San Francisco (round-trip) Travelocity

$227+: San Francisco from El Paso (round-trip) Major Airlines

$275+: Elmira to San Francisco (round-trip) Travelocity

$235+: San Francisco from Fayetteville (round-trip) Travelocity

$219+: San Francisco from Flagstaff (round-trip) Major Airlines

$235+: San Francisco from Florence (round-trip) Travelocity

$285+: San Francisco from Fort Dodge (round-trip) Major Airlines

$205+: Fort Lauderdale to San Francisco (round-trip) Travelocity

$235+: San Francisco from Fort Myers (round-trip) Travelocity

$247+: San Francisco from Gainesville (round-trip) Travelocity

$255+: San Francisco from Grand Rapids (round-trip) Major Airlines

$303+: San Francisco from Greensboro (round-trip) Major Airlines

$235+: San Francisco from Greenville (round-trip) Major Airlines

$357+: Harrisburg to San Francisco (round-trip) Travelocity

$232+: San Francisco from Hartford (round-trip) Travelocity

$478+: San Francisco from Honolulu (round-trip) Travelocity

$263+: Houston to San Francisco (round-trip) Travelocity

$285+: Indianapolis to San Francisco (round-trip) Travelocity

$325+: Islip to San Francisco (round-trip) Major Airlines

$275+: San Francisco from Ithaca (round-trip) Major Airlines

$304+: Jacksonville to San Francisco (round-trip) Travelocity

$175+: Jacksonville to San Francisco (round-trip) Major Airlines

$229+: Kansas City to San Francisco (round-trip) Travelocity

$245+: San Francisco from Killeen (round-trip) Travelocity

$301+: San Francisco from Lacrosse (round-trip) Major Airlines

$125+: Las Vegas to San Francisco (round-trip) Travelocity

$295+: Latrobe to San Francisco (round-trip) Major Airlines

$441+: Lexington to San Francisco (round-trip) Major Airlines

$275+: Lincoln to San Francisco (round-trip) Major Airlines

$85+: Los Angeles to San Francisco (round-trip) Travelocity

$241+: Louisville to San Francisco (round-trip) Travelocity

$239+: San Francisco from Madison (round-trip) Travelocity

$325+: San Francisco from Manchester (round-trip) Travelocity

$289+: San Francisco from Marquette (round-trip) Travelocity

$285+: Mason City to San Francisco (round-trip) Major Airlines

$403+: San Francisco from Medford (round-trip) Major Airlines

$205+: Miami to San Francisco (round-trip) Travelocity

$199+: San Francisco from Milwaukee (round-trip) Major Airlines

$255+: Minneapolis to San Francisco (round-trip) Travelocity

$246+: San Francisco from Nashville (round-trip) Major Airlines

$265+: New Bern to San Francisco (round-trip) Travelocity

$235+: New Orleans to San Francisco (round-trip) Major Airlines

$243+: San Francisco from Norfolk (round-trip) Major Airlines

$165+: Oklahoma City to San Francisco (round-trip) Travelocity

$193+: San Francisco from Ontario (round-trip) Travelocity

$193+: San Francisco from Orange County (round-trip) Travelocity

$285+: San Francisco from Orlando (round-trip) Travelocity

$145+: San Francisco from Palm Springs (round-trip) Major Airlines

$345+: Pensacola to San Francisco (round-trip) Travelocity

$345+: San Francisco from Philadelphia (round-trip) Major Airlines

$231+: San Francisco from Pittsburgh (round-trip) Major Airlines

$171+: San Francisco from Portland (round-trip) Major Airlines

$215+: San Francisco from Providence (round-trip) Major Airlines

$205+: Raleigh to San Francisco (round-trip) Travelocity

$165+: San Francisco from Reno (round-trip) Major Airlines

$325+: San Francisco from Salisbury (round-trip) Travelocity

$145+: San Francisco from Salt Lake City (round-trip) Major Airlines

$186+: San Antonio to San Francisco (round-trip) Major Airlines

$105+: San Diego to San Francisco (round-trip) Major Airlines

$233+: Sarasota to San Francisco (round-trip) Major Airlines

$345+: Savannah to San Francisco (round-trip) Major Airlines

$145+: San Francisco from Seattle (round-trip) Travelocity

$245+: Spokane to San Francisco (round-trip) Travelocity

$265+: St. Louis to San Francisco (round-trip) Major Airlines

$232+: San Francisco from Steamboat Springs (round-trip) Major Airlines

$275+: San Francisco from Syracuse (round-trip) Travelocity

$205+: Tampa to San Francisco (round-trip) Travelocity

$217+: San Francisco from Tucson (round-trip) Major Airlines

$261+: Tulsa to San Francisco (round-trip) Travelocity

$254+: San Francisco from Valdosta (round-trip) Travelocity

$205+: West Palm Beach to San Francisco (round-trip) Major Airlines

$345+: San Francisco from Westchester (round-trip) Travelocity

$205+: San Francisco from Wichita (round-trip) Travelocity

$325+: San Francisco from Williamsport (round-trip) Travelocity

$345+: Wilmington to San Francisco (round-trip) Major Airlines

$219+: Yuma to San Francisco (round-trip) Travelocity

$232+: San Francisco from Phoenix (round-trip) Major Airlines

$106+: Los Angeles to San Francisco (round-trip) Major Airlines

$186+: Palm Springs to San Francisco (round-trip) Major Airlines

$136+: San Francisco from San Diego (round-trip) Expedia

$136+: San Diego to San Francisco (round-trip) Expedia

$186+: San Francisco from Denver (round-trip) Major Airlines

$186+: San Francisco from Denver (round-trip) Major Airlines

$264+: Hartford to San Francisco (round-trip) Major Airlines

$264+: Hartford to San Francisco (round-trip) Major Airlines

$244+: San Francisco from Fort Lauderdale (round-trip) Major Airlines

$208+: Jacksonville to San Francisco (round-trip) Expedia

$226+: Miami to San Francisco (round-trip) Major Airlines

$347+: Orlando to San Francisco (round-trip) Major Airlines

$278+: San Francisco from Sarasota (round-trip) Major Airlines

$296+: San Francisco from Atlanta (round-trip) Major Airlines

$277+: Chicago to San Francisco (round-trip) Major Airlines

$268+: San Francisco from New Orleans (round-trip) Expedia

$264+: Baltimore to San Francisco (round-trip) Expedia

$312+: Boston to San Francisco (round-trip) Expedia

$304+: San Francisco from Detroit (round-trip) Major Airlines

$262+: Kansas City to San Francisco (round-trip) Expedia

$266+: Omaha to San Francisco (round-trip) Expedia

$146+: Las Vegas to San Francisco (round-trip) Major Airlines

$292+: San Francisco from Albuquerque (round-trip) Major Airlines

$306+: New York to San Francisco (round-trip) Major Airlines

$263+: Charlotte to San Francisco (round-trip) Major Airlines

$246+: San Francisco from Raleigh - Durham (round-trip) Major Airlines

$460+: Cincinnati to San Francisco (round-trip) Major Airlines

$374+: San Francisco from Cleveland (round-trip) Expedia

$267+: San Francisco from Columbus (round-trip) Major Airlines

$192+: San Francisco from Portland (round-trip) Major Airlines

$312+: Philadelphia to San Francisco (round-trip) Major Airlines

$264+: San Francisco from Pittsburgh (round-trip) Expedia

$360+: Providence to San Francisco (round-trip) Major Airlines

$286+: Nashville to San Francisco (round-trip) Major Airlines

$206+: San Francisco from Austin (round-trip) Expedia

$308+: San Francisco from Dallas (round-trip) Expedia

$302+: San Francisco from Houston (round-trip) Expedia

$410+: San Francisco from San Antonio (round-trip) Expedia

$187+: San Francisco from Salt Lake City (round-trip) Major Airlines

$166+: Seattle to San Francisco (round-trip) Expedia

$240+: Milwaukee to San Francisco (round-trip) Expedia

$369+: San Francisco from Allentown (round-trip) Travelocity

$256+: San Francisco from Atlanta (round-trip) Travelocity

$225+: Columbus to San Francisco (round-trip) Travelocity

$325+: Durango to San Francisco (round-trip) Major Airlines

$286+: Indianapolis to San Francisco (round-trip) Major Airlines

$161+: San Francisco from Jacksonville (round-trip) Major Airlines

$232+: New Haven to San Francisco (round-trip) Travelocity

$235+: Omaha to San Francisco (round-trip) Major Airlines

$335+: Richmond to San Francisco (round-trip) Major Airlines

$205+: San Antonio to San Francisco (round-trip) Major Airlines

$232+: San Francisco from Phoenix (round-trip) Major Airlines

$106+: San Francisco from Los Angeles (round-trip) Major Airlines

$166+: San Francisco from Palm Springs (round-trip) Major Airlines

$277+: Sacramento to San Francisco (round-trip) Major Airlines

$136+: San Diego to San Francisco (round-trip) Major Airlines

$186+: San Francisco from Denver (round-trip) Major Airlines

$265+: San Francisco from Hartford (round-trip) Expedia

$238+: San Francisco from Fort Lauderdale (round-trip) Expedia

$327+: San Francisco from Orlando (round-trip) Expedia

$296+: San Francisco from Atlanta (round-trip) Expedia

$259+: Baltimore to San Francisco (round-trip) Major Airlines

$373+: San Francisco from Boston (round-trip) Expedia

$262+: Kansas City to San Francisco (round-trip) Major Airlines

$281+: Omaha to San Francisco (round-trip) Expedia

$146+: San Francisco from Las Vegas (round-trip) Major Airlines

$299+: Albuquerque to San Francisco (round-trip) Major Airlines

$306+: San Francisco from New York (round-trip) Major Airlines

$263+: Charlotte to San Francisco (round-trip) Major Airlines

$386+: Raleigh - Durham to San Francisco (round-trip) Expedia

$458+: San Francisco from Cincinnati (round-trip) Major Airlines

$192+: San Francisco from Portland (round-trip) Expedia

$264+: Pittsburgh to San Francisco (round-trip) Major Airlines

$370+: San Francisco from Providence (round-trip) Expedia

$308+: San Francisco from Dallas (round-trip) Expedia

$302+: San Francisco from San Antonio (round-trip) Major Airlines

$222+: Salt Lake City to San Francisco (round-trip) Expedia

$166+: San Francisco from Seattle (round-trip) Expedia

$240+: Milwaukee to San Francisco (round-trip) Major Airlines

$354+: San Francisco from Albany (round-trip) Major Airlines

$421+: Cincinnati to San Francisco (round-trip) Travelocity

$345+: Cleveland to San Francisco (round-trip) Major Airlines

$287+: San Francisco from Dallas (round-trip) Major Airlines

$205+: Kansas City to San Francisco (round-trip) Major Airlines

$178+: San Francisco from Minneapolis (round-trip) Major Airlines

$335+: Pensacola to San Francisco (round-trip) Travelocity

$275+: Portland to San Francisco (round-trip) Major Airlines

$195+: Steamboat Springs to San Francisco (round-trip) Travelocity

$243+: San Francisco from Washington (round-trip) Major Airlines

$226+: Phoenix to San Francisco (round-trip) Major Airlines

$166+: Palm Springs to San Francisco (round-trip) Expedia

$330+: Sacramento to San Francisco (round-trip) Expedia

$265+: Hartford to San Francisco (round-trip) Expedia

$198+: Jacksonville to San Francisco (round-trip) Expedia

$397+: Sarasota to San Francisco (round-trip) Expedia

$296+: San Francisco from Atlanta (round-trip) Expedia

$296+: Chicago to San Francisco (round-trip) Major Airlines

$373+: San Francisco from Boston (round-trip) Major Airlines

$304+: San Francisco from Detroit (round-trip) Expedia

$266+: Omaha to San Francisco (round-trip) Major Airlines

$134+: San Francisco from Las Vegas (round-trip) Expedia

$299+: San Francisco from Albuquerque (round-trip) Expedia

$278+: New York to San Francisco (round-trip) Expedia

$263+: Charlotte to San Francisco (round-trip) Major Airlines

$244+: San Francisco from Raleigh - Durham (round-trip) Major Airlines

$384+: San Francisco from Cleveland (round-trip) Major Airlines

$317+: Columbus to San Francisco (round-trip) Expedia

$209+: San Francisco from Portland (round-trip) Major Airlines

$387+: San Francisco from Philadelphia (round-trip) Major Airlines

$326+: San Francisco from Pittsburgh (round-trip) Expedia

$302+: Nashville to San Francisco (round-trip) Major Airlines

$308+: Dallas to San Francisco (round-trip) Major Airlines

$397+: San Francisco from San Antonio (round-trip) Major Airlines

$187+: San Francisco from Salt Lake City (round-trip) Major Airlines

$152+: San Francisco from Seattle (round-trip) Expedia