The service was discontinued in October 2014 for a variety of reasons, including anticipated opening of the Union Pearson Express, a rail link connecting the airport to downtown Toronto.

The service ceased operation on October 31, 2014 due to declining ridership, which had fallen from 400,000 to 190,000 in ten years.

The decline was attributed to the popularity of the Billy Bishop airport and delays due to downtown road construction.

In response to the closure of Pacific Western's service, the Toronto Transit Commission enhanced its Route 900 Airport Express[4] express bus service between Kipling subway station and the airport by retrofitting buses with luggage racks and increasing the frequency of buses on the route.

There were nine downtown Toronto destinations:[5] The route took about 1 hour and 10 minutes without accounting traffic delays.