>>1375892>international flight for the same amount of time
Protip: Intercontinental flights are NOT comparable to Ryanair.
Will never forget the weird looks I got, when I tried to "smuggle" drinks aboard on my first Japan trip only knowing budget airlines before that.
Even in economy class it's all-inclusive. Your mugs are bottomless.
You can also go for a walk around the plane without any trouble.
On a bus, I think I could only do a trip that long overnight.
Rail is superior to both, though.