JetBlue is back with another amazing 1-day only Sample Sale. We're talking coast-to-coast fares for as little as $158 round-trip, before taxes. Not bad, right? These deals are valid for travel from October 22 through December 16, on Tuesdays and Wednesdays. Fares to/from Florida are valid for southbound travel on Mondays, Tuesdays, and Wednesdays, and for northbound travel on Tuesdays, Wednesdays, and Thursdays.