I found seats departing San Diego SAN on Friday, February 22, returning from Las Vegas LAS on Monday, February 25.
You'll find slightly higher $122 roundtrip fares available throughout the Southwest booking schedule, which is currently bookable through October 1, 2019. Weekends included.
Need a room in Vegas? Here's what's available for the mentioned weekend dates on Hotelwatchdog.
For more weekend travel deals from your city, make sure to have a look at our new and improved Weekender search tool.