If I ride the wind into abandoned hall do I get plus might from Ride the Wind resolving?

Yes. When you play Ride the Wind to move a unit to Abandoned Hall, the unit does get +1 Might from Abandoned Hall's triggered ability.

Here's the timing in order:

1. Ride the Wind resolves — your unit moves to Abandoned Hall and is readied.
2. Only after the spell fully resolves does Abandoned Hall's "When a player plays a spell" trigger check in. Since your unit arrived during step 1, it's already at Abandoned Hall and is a valid target for the buff.
3. The trigger goes on the chain and resolves, giving the unit +1 Might.

The key insight: Abandoned Hall's trigger fires after the spell finishes resolving, not while it's still on the chain. So the unit is already there to receive the bonus.