Our columnist traveled via Mint service on the underdog airline from JFK to Heathrow.

JetBlue, which currently offers its highest-end Mint service with lie-flat seats on select long-haul routes, plans to introduce a domestic first class–style product on aircraft that do not have Mint ...

JetBlue said government shutdown-related flight cancellations in early November, together with Hurricane Melissa in Jamaica, resulted in a roughly 1-point reduction to available-seat-mile growth. The ...