How long is the flight to Tokyo from NY?

Question:

We're flying to Tokyo this summer from NY, and I've seen it's about 11-13 hours. Then I looked up the flight from California to Tokyo and its 11 hours. How come they are the same length when California is closer to Tokyo than New York is?

Answer:

The reason is the flight path they take, jet streams etc. A flight from NYC to Tokyo goes across Canada, over Alaska then down near Korea and landing in Tokyo.

A flight from Los Angeles follows a slightly different route, different jet streams etc to Tokyo.

Generally a flight from NYC should be about 11-13 hours flight time.