Originally Posted by
flyer4512
Is B6 slang for Jetblue similar to WN for Southwest ?
Not slang, it's the
IATA code for JetBlue. Same for WN. You'll see these commonly used on Flyertalk (and beyond).
See
http://i.imgur.com/qcos5eW.png (via
http://aviation.stackexchange.com/qu...s-iata-code-b6) for why JetBlue apparently ended up with B6.