cheaper than spirit and this works in reverse!
United Airlines have round trip airfares travelling to and from Cleveland (CLE) and Los Angeles (LAX) for $101, nonstop. These are basic economy fares with an option to upgrade to main cabin before final purchase.
Departs CLE: Jan 9, 15, 16, 23, 29, 30; Feb 5, 6, 12
Departs LAX: Jan 9, 16, 23, 29
Enter travel dates on Expedia [expedia.com]
to book this deal. Bundling hotel with airfare will save money.