The best price found from United States to Toronto is on January 22nd, 2017, travelling with Porter Airlines. See more options, compare prices and book: search flights.
Air Canada and WestJet compete heavily in the domestic market, and match one-way fares between Toronto and Ottawa (from $120), Montréal (from $98), Calgary (from $258), Edmonton (from $256), Vancouver (from $293) and Victoria (from $329). Don't expect to see these kind of prices all the time: domestic air travel within Canada is comparatively expensive.
Billy Bishop Toronto City Airport, on a small island just off the lakeshore, is the proud home of Porter airlines, with competitive fares to a wide range of destinations within eastern Canada and the USA. Air Canada also has services to Montréal from here.
Most Canadian airlines and international carriers arrive at Canada's busiest airport, Toronto Pearson International Airport, 27km northwest of downtown Toronto: it's a giant and attracts one of the highest airport taxes in the world. (Don't worry, you'll have unknowingly paid that in the price of your ticket.) Terminal assignments vary; be sure to check with your airline which one you'll be coming in to or leaving from.
UP Express The fastest way to get downtown is the Union Pearson Express rail link. The comfortable trains leave every 15 minutes, have free wi-fi and power points and take just 25 minutes to get to Union Station, stopping at Weston and Bloor stations too. Traveling on a PRESTO card (www.prestocard.ca) is highly recommended: the $6 rechargeable card pays for itself with a return trip to the airport and is useful for local transport in Toronto and on GO Transit.
TTC The cheapest (but not the best) way to get to the airport is on the TTC ($3.25). It's a pain with heavy luggage: many stairs. Catch the subway to Kipling station (you may need to change lines at Bloor-Yonge) then connect with the 192 Airport Rocket Express bus. From the airport, the bus departs Terminals 1, 2 and 3 every 20 minutes from 5:30am to 2am. Allow at least an hour for the journey.
Taxi From Pearson to the city takes anywhere from 40 to 70 minutes, depending on traffic. The Greater Toronto Airports Authority (GTAA) regulates fares by drop-off zone: it's $60 to downtown. Don't pay more and remember to tip. Airport limos often match the rate and have nicer cars and drivers.
Porter airline's meteoric rise to becoming the beloved darling of gridlocked downtowners began when it opened the doors of Billy Bishop Toronto City Airport in 2010. Since then, accessibility, low fares, great service and a rapidly expanding network of destinations within Canada and the US have ensured its continued success. Far-flung cities like Sault Ste-Marie and Thunder Bay benefit from an influx of domestic tourists and residents of Toronto's inner neighborhoods now pop over to New York, Boston, Chicago and Washington for the weekend.
It is incomparably smaller than Toronto's gargantuan Pearson airport, and access by a free ferry shuttle makes air travel in and out of Toronto easy. Operating a quiet fleet of Bombardier turbo-prop aircraft, manufactured here in Canada, Porter keeps expanding despite scuttled plans to introduce CS100 whisper-quiet jet aircraft. Porter flies right past a bunch of waterfront condos, so the government said no to expanding Billy Bishop.
When planning your itinerary, be sure to keep your eyes on www.flyporter.com: seat sales are frequent and offer excellent value. With the zippy UP Express rail link to Pearson International airport, there's sure to be competition in the skies for years to come.