Usually when a vocab item exists on WK, a link to WK will be shown on the Jisho.org entry.
However, some of these items are not linked (any more?). Perhaps WK and Jisho should do another sync to compare all the WK vocabs that have changed levels/been removed/been added since the last sync?
One example is the " 達する" entry on Jisho. I was looking it up today and didn’t see the WK link, so I looked it up on WK and sure enough, it’s there (level 18).