Spirit has introduced service between Boston and Ft. Lauderdale with fares from $0.10. Book tickets by 11:59 p.m. ET on Wednesday.
Spirit's new sale ends at 11:59 ET on Wednesday night. Destinations include Cancun, San Juan, and Nassau.
Argentina, Brazil, Belize, and Guatemala are featured in Continental's deal. Departures are available from Houston and Newark.
American's new Hawaii deal competes with a similar offer from United. Destinations include Oahu, Maui, Kauai, and the Big Island.
Flights to Miami, Orlando, Newark, and Detroit are included in AirTran's new offer. Travel is valid through mid-May.
Continental's deal includes flights to Florida, Puerto Rico, Bermuda, Mexico, and more. Departures are available from the Northeast.
Southwest's deal includes Chicago, Houston, Las Vegas, and Los Angeles. Book tickets by midnight CT on Thursday, January 31.
