jetBlue has select fares from $39 each way. Must book by 05/30 for travel from 06/05 through 09/26.
For example: Las Vegas, NV to Long Beach from $39, – Boston, MA to New York, NY (JFK) for $60, – Burbank, CA to Las Vegas, NV for $40, – Newark, NJ to Boston, MA for $54, – Saint Croix to San Juan, PR for $39 and more.