Frontier is having a crazy-low sale, and 3 of the highlights are:
- Denver
- Tulsa, OK
- Oklahoma City
All are $29 round-trip, most have really flexible dates, and you can travel as late as May 16. The sale ends tonight though.
Trips currently available out of SNA & San Diego. (The LAX ones disappeared before I could get this post written.)
Good luck! https://www.flyfrontier.com/ways-to-save/online-deals/