Steemit Airlines!
I've had this idea for awhile. Leasing airplanes or buying them is relatively inexpensive
https://www.controller.com/listings/aircraft/for-sale/list/category/3/jet-aircraft?Manu=BOEING
All of the maintenance, refuelling and catering is done at airports. The airline could be designed for last minute travel the most expensive type of flight. First come first serve with first class available to encourage early booking. I think destinations would have to be larger cities with stops in smaller destinations. An example being London to New York to LA or San Francisco to Tokyo to Shanghai etc... The airline could figure out the cost of each flight and add 5 to10% to ticket prices to help build it. Steemit Airlines could start with 1 aircraft figure out a route around the world and grow from there. If you have Steem early on flights would be even cheaper as it appreciates versus dollars. Of course I would need people to help out so if you ha =ve experience in the airline industry, website design, marketing please reply. Let's see what happens next.
Boeing actually has an airline startup page
http://www.boeing.com/company/about-bca/startupboeing.page