ToplineShares of JetBlue saw their biggest daily percentage gain since February on Tuesday, soaring as much as 20% as the airline posted a better-than-expected quarterly revenue, returning company shares to a three-month high.JetBlue said it will eliminate 50 underperforming routes and boost coverage in the Northeast, ... [+] Florida and Puerto Rico.Getty Images Key FactsShares of JetBlue, the fifth-largest airline in the country, ascended to over $7 per share as of 11:30 a.m. Tuesday morning, up about 18%, ...