Spirit Airlines offers nationwide 1-way flights from select cities in the U.S. with prices starting at $33.10. (Click on "Spirit.com" in the top line to see this sale; all taxes are included.) That's the lowest price we could find for select fares by $44. This price is valid on flights departing from Las Vegas, NV, (LAS) with arrival in San Diego, CA, (SAN) on October 21. Book this travel deal today for travel on select dates from October 6 through February 10, 2015. Click here to see more routes.