For weekend travel, fly nonstop from Los Angeles to San Francisco for $103 roundtrip on Alaska, American, Delta, or United. If you're in NorCal and want to travel to SoCal for a weekend, you'll also find this same fare available from San Francisco to Los Angeles.
I found seats on Alaska departing Los Angeles LAX on Friday, February 15, returning from San Francisco SFO on Sunday, February 17.
You'll find other peak weekend travel dates available as early as next weekend through the middle of July. Fares are a few dollars lower if you can travel Mondays through Thursdays, or Saturdays.
For more weekend travel deals from your city, make sure to have a look at our new and improved Weekender search tool.
Need a room in SF? Here's what's available for these dates on Hotelwatchdog.