Every plane I've been on recently offers wifi through a service called Gogo. It's stupidly expensive but always enticing. I know people sell other kinds of accounts, but a search on grams doesn't turn up anything for this one.
Also, would this be a security risk? Seems extremely unlikely that anyone would be looking, but it's always best to avoid being flagged for scrutiny in an airport.
Send /u/ciphercracks a pm. He might be able to do something for you, he did a special order for me.