If you ride the wind from one abandoned hall to another abandoned hall does your unit get any plus might?

Yes — your unit gets +1 [S] from the destination Abandoned Hall, but not from the origin one.

Here's the timeline:

1. Ride the Wind resolves — the unit leaves Abandoned Hall A and arrives at Abandoned Hall B, readying along the way.
2. Only after the spell finishes resolving do both Abandoned Halls' "When a player plays a spell" triggers go on the chain (per FAQ #11430 and #10497).
3. Abandoned Hall A's trigger resolves — it asks you to give +1 [S] to "a unit you control here." Your unit is no longer at Hall A, so it's not a valid target. No buff from Hall A.
4. Abandoned Hall B's trigger resolves — your unit is there, so it's a valid target. You may give it +1 [S] this turn.

So you get exactly one +1 [S] — from the battlefield you arrived at.