Can I leave my car at Dundonald Dunlady Road and travel into Belfast?

Yes.

Dundonald’s Park and Ride is listed at Dunlady Road and is designated for bus travel. It serves the eastern Belfast approach rather than the A1 or M1 corridor. The practical advantage is that you can leave the vehicle outside the city centre and board a service that stops at the site. Check current Translink routes and fares first, particularly if you need a connection beyond the centre; the car park and the bus service have separate operating arrangements.