This won't be an easy task, because you cannot transport the bike on a plane even if you remove the battery, as the transport of Li-ion batteries of this size on a plane is not permitted in general. This applies to both passenger and cargo flights.
If you are moving overseas in the long term, you can only ship your e-bike by container.
Also note that our warranty is only valid in the countries to which we ship to and our bikes are not road legal in the US.
Let us know if you have any further questions.