I enjoyed flying Porter out of Toronto into New York. Friendly staff and civilized service. The disappointment was flying back in foggy weather. My flight was redirected to Hamilton because the Island airport doesn't have good navigation systems for landing in fog and Porter's terminal at Pearson doesn't have Customs agents. Porter arranged buses from Hamilton to Toronto so they handled the situation well but the trip took much longer than planned. I would use Porter again for domestic flights but not rely on them for on-time arrival from the US.