I have absolutely no idea. [LOL]
I just like watching (imagining in this case) you math geeknerds work these out.[pick-me]I posed the same question to a co-worker some years ago and asked him to show his work. He did it as far as I can tell, but I forgot what he came up with. Knowing what the circumference is 30,000 feet up, let alone accounting for the climb and descent is where I quickly get lost. I should run this by my youngest son, he was a CS/math major before he changed to EE.
The circumference of the earth at the 34th parallel is
listed here as 17958.166 miles. Given that a rise in elevation makes it farther still, but likely less than 1% more, your answer falls short.