Yep....
Most airlines have already banned it.
that said...I had an 8 hour flight on American.
I just stealth vaped (hold it for a few seconds then blow down hard) and had a KGO with a mini nova in my hand the whole flight.
No one even noticed.
If asked I would have played dumb and stopped though.
I didn't see anything about e-cigs in American's on board literature, but it IS in Southwest's.
From the American site: "Smoking
As a result of Federal legislation effective July 1, 1997, all American Airlines and American Eagle flights are nonsmoking.
In addition, the activation of electronic e-cigarettes is not allowed nor is smoking permitted on any of the flights operated by Americans codeshare partners, including those who belong to the global oneworld Alliance. However, SNCF French Rail in Europe still allows smoking, and American codeshares on many of SNCFs rail routes to and from Paris"
I stealthed before, flight to Honolulu was long, but was extremely low key about it, window seat with wifie next to me, exhaled into a cup of liquid. I used a tube
mod, with no ash tip light, it basically looked like I had a black magic marker in my hand. If someone is tempted to try a restroom, be aware that some smoke alarms will be set off if you create clouds of vapor, so you should still be stealth, minimize vapor into the air.