I have been comparing options to Toronto from Dublin where I live. It seems a much better deal to go with Zoom who fly from Belfast & do not stopover at Shannon. Prices are much cheaper than Air Canada or Airtransat & you can reserve your seats when you book. Although you have to drive to Belfast you save a lot on parking charges if you are staying for 2 weeks or more. Also Belfast Airport is much quicker & comfortable to check in. Has anyone taken this route & are there any problems with Zoom ?