How do you find something like a route map or to/from info?

I went to the website, entered in the desired to/from info, and the clicked continue to step 2.

However, step 2 requires you to enter in all your info and personal data without letting you know if your desired to/from combo is possible.

Do you fly anywhere in Asia direct to Eurloand? Ie like a HKG/NRT/ICN to Paris?