Title: Porter Airlines
Content:  Porter Airlines (stylized in all lowercase as porter) is a regional airline headquartered at Billy Bishop Toronto City Airport on the Toronto Islands in Toronto, Ontario, Canada. Owned by Porter Aviation Holdings, formerly known as REGCO Holdings Inc., Porter operates regularly scheduled flights between Toronto and locations in Canada and the United States using Canadian-built Bombardier Q400 turboprop aircraft. Porter's operation at the Toronto airport was launched in 2006 with some controversy. Robert Deluce, who is now the Executive Chairman of Porter Airlines, proposed creating a regional airline using Bombardier turboprop aircraft to service major cities of Canada within the range of Toronto. A planned bridge to the airport was cancelled in 2003, leading to lawsuits between Deluce and the City 
Title: Porter Airlines
Content:   In Toronto, Porter provides a bus shuttle from the downtown Royal York Hotel to the airport ferry dock and tunnel entrance. The 4 buses (mix of Blue Bird Corporation Ultra LF and New Flyer Industries D40LF) are operated by Pacific Western Transportation. The shuttle service had moved to the Royal York from its original location at 20 York Street, next to Union Station, in March 2008, when city construction for the Simcoe Street Tunnel blocked access. Porter planned to return to the location, but in September 2009, Porter was evicted from the 20 York Street building due to non-payment of rent. Porter used to provide complimentary snacks and beverages 
Title: Porter Airlines
Content:  would begin flying out of Toronto Pearson International Airport and expand its destinations throughout Canada, the United States, and Caribbean, starting in mid-2022. On March 18, 2020, Porter announced that they would suspend all flights, initially from March 20 through to June 1 due to the ongoing COVID-19 coronavirus pandemic. The suspension of service was then extended several times, until it was announced that Porter will be returning to service starting September 8, 2021, nearly 18 months since all flights were suspended. In July 2021, it was announced that Porter Airlines had reached an agreement with Canadian Federal Government for loans valued up to US$218.2 million, which will be used primarily as a capital reserve during the COVID-19 recovery period.
Title: Pacific Western Transportation
Content:  Porter Airlines provides a shuttle bus service for its passengers between the Royal York Hotel in downtown Toronto and the ferry dock/passenger tunnel to the Billy Bishop Toronto City Airport (island airport). The service is operated by Pacific Western at 10-minute intervals using Thomas SLF buses. This service has stopped as of March 2020.
Title: Porter Airlines
Content: Burlington, Vermont (Burlington International Airport 2011–2018) ; Charleston, South Carolina (Charleston International Airport 2015–2016) ; Melbourne, Florida (Orlando Melbourne International Airport 2015–2019) ; North Bay, Ontario (North Bay/Jack Garland Airport 2015–2017) ; Pittsburgh, Pennsylvania (Pittsburgh International Airport 2015–2017) As of March 2020, Porter Airlines destinations are: Terminated destinations are: In 2016, Porter ran a small number of flights from Toronto and Ottawa to Winnipeg to test this potential market.
Title: Robert Deluce
Content:  purchased the terminal building at the airport being used by Air Canada Jazz and evicted them, freeing the space for his own airline. Porter Airlines launched in October 2006 with flights to Ottawa, Ontario and has expanded since. Porter flies to Toronto, Ottawa, Montreal, Quebec City, Moncton, Timmins, Windsor, Halifax, St. John’s, Thunder Bay, Sault Ste. Marie, Sudbury, New York City (Newark), Chicago (Midway), Boston (Logan), Washington (Dulles) and has seasonal flights to Mont Tremblant, Quebec; Burlington, Vermont; and Myrtle Beach, South Carolina. He is also the president and CEO of Deluce Capital Corporation of Toronto. He is a past director of the Arthritis & Autoimmunity Research Centre of University Health Network and Vector Aerospace Corporation.
Title: Porter Airlines
Content:  their lounges at Toronto's Billy Bishop, Ottawa International and Newark Liberty Airport, but have since discontinued this, since selling the terminal building in Toronto to Nieuport Aviation, who opted to include more traditional restaurant offerings. They have since also closed their Newark lounge. Porter still does, however, continue to provide complimentary snacks and beverages, including alcohol, on board their aircraft. Porter Airlines offers a frequent flyer rewards program called 'VIPorter', whereby points can be redeemed for free flights. On August 3, 2018 the airline announced a deal to have VIPorter replaced by Aeroplan as the company's loyalty program. However, following Air Canada's reacquisition of Aeroplan, this deal was terminated.
Title: Porter Airlines
Content:  City of Toronto and later expanded it to the Government of Canada. After receiving an unspecified amount of compensation from the TPA to settle the suit, his company bought the airport building that Jazz was using at the airport and cancelled Jazz's lease on January 31, 2006. Two days later, on February 2, 2006, he announced that Porter Airlines, a regional airline operating locally built Bombardier turboprops would begin service in 2006, operating from the airport, initially on a Toronto-Ottawa route. In a show of political support, the Porter press conference was staged at the Bombardier plant in suburban Toronto, 
Title: Porter Airlines
Content:  Porter Airlines' launch was controversial, as it pitted Toronto residents seeking to close or stop the expansion of the airport against business interests and a government agency determined to make the airport self-sufficient. In 2002, the 'Toronto City Centre Airport', or 'Island Airport', operated by the Toronto Port Authority (TPA) (renamed in 2015 as "PortsToronto") was subsidized by CA$1 million per year. Only Air Canada flew flights from the airport as part of its Jazz" service, operating daily flights to Ottawa after the closure of the regional airline City Express in 1991. In October 2002, the TPA announced a $35 million 
Title: PortsToronto
Content:  It was reported at the TPA public meeting of September 2009 that Porter has landed its planes at the airport without any air traffic controllers on duty. And that Porter has been landing planes after the 11:00 flight curfew, when such flights should have been diverted to Toronto Pearson International (where air traffic controllers are on duty at all hours). There are no regulations that prohibit aircraft from landing at the TCCA when no air traffic controllers are present. Curfew breaches have occurred and are handled on a case-by-case basis by the TPA. The TPA may fine Porter, Air Canada or any other airline in violation of the curfew $5,000 for each such landing.

Question: where does porter fly out of in toronto?
Answer: Billy Bishop Toronto City Airport.