This is who actually "owns" the armrest on a plane...

We've all boarded a flight and had to "battle" it out with our fellow passengers over who gets the armrest.

So who actually owns the armrest?

According to former flight attendant Jacqueline Whitmore, there is an unspoken rule that the person in the middle seat gets both armrests.

Why?

Scott McCartney, author of The Wall Street Journal’s "Middle Seat" column, says “it's common traveller courtesy — they are a small consolation for the seat squeeze. The poor soul in the middle seat has neither aisle nor sidewall to expand into.”

And according to a recent poll, conducted by Gothamist, 74 percent of passengers agree that the person sitting in the middle should get both armrests.