Alaska Airlines sale: Flights from 4,000 miles or $49 across its network

For one day only, Alaska Airlines is offering one-way flights across its network starting at $49 or 4,000 Alaska Mileage Plan miles for select routes. This deal lasts through the end of Thursday, with limited availability at the time of publication. Flights are available to and from various cities, including Lihue and Kona, Hawaii; Palm …