Jetblue: One way flash Sale from $20

Example flights:

White Plains, NY (HPN) to West Palm Beach, FL (PBI) $50
Boston, MA (BOS) to West Palm Beach, FL (PBI) $50
Boston, MA (BOS) to San Juan, PR (SJU) $70
Boston, MA (BOS) to Tampa, FL (TPA) $50
Boston, MA (BOS) to Atlanta, GA (ATL) $30
Charleston, SC (CHS) to Fort Lauderdale, FL (FLL) $30
Fort Lauderdale, FL (FLL) to Nassau, Bahamas (NAS) $40
Hartford, CT (BDL) to San Juan, PR (SJU) $70
Las Vegas, NV (LAS) to Long Beach, CA (LGB) $30
Long Beach, CA (LGB) to San Francisco, CA (SFO) $20
New York (EWR) to Fort Lauderdale, FL (FLL) $40
New York (JFK) to Fort Lauderdale, FL (FLL) $40
New York (JFK) to Long Beach, CA (LGB) $70
New York (JFK) to Santo Domingo, DR (SDQ) $80
New York (LGA) to Boston, MA (BOS) $30
Oakland, CA (OAK) to Long Beach, CA (LGB) $20
Portland, ME (PWM) to New York (JFK) $30
San Juan, PR (SJU) to Santo Domingo, DR (SDQ) $50
Washington, DC (DCA) to Jacksonville, FL (JAX) $30
Washington, DC (DCA) to Boston, MA (BOS) $20