US Airways Discount Airfare: US Airways 3-Day Sale from $39

US Airways is silly with sales. Flights from major international airports including New York, Boston, Chicago and Los Angeles are on sale or as little as $39 each-way around the U.S. and throughout Mexico and the Caribbean.

Domestic flights do not require a round-trip purchase and travel is valid Monday through Thursday and Saturday only. Flights to Latin America and the Caribbean require a round-trip purchase and a 2-night minimum stay. The cheap flights to Latin America and the Caribbean do not include international taxes/fees of up to $115.