Book by 4/16 11:59 p.m. Central Time. 14-day advance purchase required. Nonrefundable. Seats, travel days, and markets limited. Fares valid on nonstop service where indicated; if not indicated, fares are valid on single connecting service. Continental U.S., Interisland Hawaii, and San Juan, PR travel valid April 28 through October 30, 2020. International travel valid May 21 through October 30, 2020. Points bookings do not include government fees from $5.60 per one-way flight.