Wondering what it costs to go to Tokyo? I planned this trip on a whim when I randomly saw the airfare deal. From there it became a challenge to myself to spend as little as possible on this trip. I wanted to cover air, hotel, Disney tickets, and anything else I reasonably could with credit card points. So how did I do? Airfare $ 433.87 Airfare is a big expense in the question of what it costs to go to Tokyo. Nearly a year in advance of this trip, I booked an economy roundtrip from Orlando to Haneda for 70,000 United miles and $57.87 for taxes and fees. I later…