It's a fantastic time to book a flight, folks! There's a trifecta of super sales all happening at the same time. We recently reported on Southwest's "Wanna Get Away? Sale," and now two other popular airlines have joined in the price-slashing. And hooray—both have those groovy seatback TVs.

JetBlue has a "More for Less Sale" with one-way fares going for as little as $39 (for Long Beach, CA to Las Vegas)  and the popular Boston-Orlando route snaggable for $89 each way. The sale ends January 14. 

Not to be outdone, Virgin America just launched a "GO! Sale" with one-way fares from $59 along the West Coast corridor (for example, between San Francisco and Seattle or San Diego) and just $139 each way on major transcontinental routes, such as San Francisco-Boston and Los Angeles-DC. The sale ends January 20. Flights must occur between January 7 and June 10.

Note: Sale fares are most often available on midweek flights.