It's the best kind of competition: JetBlue is jumping on the coattails of Southwest Airlines by offering $49 flights right now.
You've got to act fast, as the two-day flash sale ends at 11:59 PM EST on October 21, 2015. Travel has to be booked between November 4, 2015 and February 10, 2016. There're a few black out dates, too, including 11/20 – 12/1, 12/17/15 – 1/5/16, 1/18/16 (all cities) and 11/4 – 11/9/15 (JFK, LGA, EWR).
But if you can make this all mesh with your work schedule, you can use the last of your vacation days to get from Long Beach to San Francisco or Long Beach to Vegas, both going for $49 right now. There're also some great deals between New York and Florida, all going for $99.