A collaboration with JetBlue will mark the return of United Airlines to JFK International Airport in two years

JetBlue and United Airlines have announced a new partnership that will bring United back to JFK Airport for the first time in years.

At the IATA AGM on Monday, JetBlue CEO Joanna Geraghty helped unpack what this deal actually is, and what it definitely is not.

The two airlines announced a new loyalty collaboration called Blue Sky, which will allow United’s MileagePlus members and JetBlue’s TrueBlue members to earn and redeem points and miles on “most” flights operated by the other airline.

Edinburgh marks the carrier’s sixth transatlantic destination, and a continuing investment in Boston JetBlue launched its new flight from Boston to Edinburgh, Scotland. The overnight flight is best experienced in the airline's cozy Mint business class,