Toronto is one of the few cities in North America where the airport question has a genuine answer rather than an obvious one. Most places have a main airport and, if you are unlucky, a budget one an hour out of town. Toronto has Pearson, which flies almost everywhere, and Billy Bishop, which sits at the bottom of Bathurst Street and is close enough to walk to from parts of downtown.

For a lot of trips, picking the right one saves you more time than anything else you will do that day. Here is how to decide.

The Short Version

If you are flying to Montreal, Ottawa, Boston, New York or somewhere else within a couple of hours, and you are starting from downtown, Billy Bishop is almost certainly the better choice. If you are flying anywhere else — long-haul, most of the United States, anything international, or anything on a budget carrier — it is Pearson, and it is not close.

The interesting cases are the ones in between, and those come down to where you actually live.

Where Each One Flies

Billy Bishop is deliberately small. The airport describes its own network as more than twenty cities in Canada and the United States, served primarily by Porter. That covers the eastern corridor well — Montreal, Ottawa, Halifax, Boston, New York, Chicago, Washington — and not much beyond it. There is no long-haul, and the island runway limits the aircraft that can use it.

Pearson is the opposite proposition. It is Canada's busiest airport, with dozens of airlines flying to well over a hundred destinations, including essentially every long-haul route out of the country. If your trip involves a connection, a transatlantic leg or a carrier you have never flown before, Pearson is where it departs from.

So the first question is not really about convenience at all. Check whether your route even exists out of Billy Bishop. Often it does not, and the decision makes itself.

Getting There Is Where Billy Bishop Wins

This is the part that wins people over. Billy Bishop sits on the Toronto Islands, and the mainland terminal is at the foot of Bathurst Street, a few minutes from the core. There is no bridge for cars, so you reach the terminal building itself through a free pedestrian tunnel or on a short ferry across the gap. Both take a matter of minutes.

From a King Street office or a downtown hotel, you can plausibly leave twenty-five minutes before your flight boards and be fine. That is not an exaggeration, and it is the single reason the airport has such a loyal following among business travellers.

Pearson is about twenty-five kilometres west of downtown, in Mississauga. The UP Express runs from Union Station in roughly twenty-five minutes, which is genuinely good when it fits your schedule. Driving is less predictable — the 401 and the 427 do not care about your boarding time, and a bad morning can turn half an hour into an hour and a quarter.

But That Advantage Depends Entirely on Where You Start

Here is the part most comparisons skip. Billy Bishop's convenience is a downtown convenience. It evaporates the further out you live.

From Markham, Vaughan or Richmond Hill, you would be driving south through the entire city to reach Bathurst Street, then crossing to an island, to catch a flight that might also leave from an airport you could have reached more easily by going west. From Mississauga, Oakville or Brampton, Pearson is practically on the doorstep and Billy Bishop is a genuine trek.

Roughly, the rule works like this:

• Downtown, Liberty Village, the waterfront, Leslieville — Billy Bishop, every time, if the route exists.
• Mississauga, Oakville, Brampton, Milton — Pearson, almost without exception.
• Markham, Vaughan, Richmond Hill, Scarborough — usually Pearson, unless you are heading downtown first anyway.
• North York, midtown — genuinely a toss-up. Compare the actual door-to-gate time rather than guessing.

The Airport Experience Itself

Billy Bishop is small, and that is the whole appeal. Security queues are short, the walk from entrance to gate is measured in minutes rather than kilometres, and the airport has built a reputation on a lounge that is free to all passengers rather than a paid club. For a short hop, the entire experience is closer to catching a train than catching a flight.

Pearson is a major international hub and feels like one. Terminal 1 and Terminal 3 are a real distance apart, international departures during the morning bank can be genuinely busy, and you are advised to arrive hours rather than minutes ahead. In exchange you get the route network, the lounges, the duty free and the connections.

Neither is better. They are built for different jobs.

A Few Things Worth Knowing Before You Choose

• Check the terminal, not just the airport. At Pearson, Terminal 1 and Terminal 3 are a meaningful drive apart once you are inside the airport loop. Getting it wrong costs you fifteen minutes you did not budget for.
• Weather affects the island more. Fog and high winds off the lake can disrupt Billy Bishop when Pearson is running normally. On a marginal winter day, the larger airport is the safer bet.
• Luggage changes the maths. The tunnel and ferry are easy with a carry-on. With three checked bags and two children, the convenience narrows considerably.
• Parking is not the answer at either. Airport parking for a week costs more than most people expect, and you still have to drive home tired at the end of the trip.
• Price the whole journey. A cheaper fare out of Pearson can be wiped out by the time and cost of getting there, and the reverse is just as true.

Getting to Either One

We run both, constantly, and the planning differs more than you would think.

For Billy Bishop, the job is precision. We drop you at the mainland terminal at the foot of Bathurst Street, timed so your tunnel walk or ferry crossing lines up comfortably with your flight rather than leaving you standing around. Because the airport is so quick, a pickup that is fifteen minutes out is a real problem in a way it would not be at a larger airport.

For Pearson, the job is absorbing uncertainty. We track your flight free of charge, we set the departure time around the 401 rather than around optimism, and we meet you at the right terminal. If you are travelling in winter, our notes on getting to Pearson when it snows are worth a read.

Either way the rate is flat and agreed before you travel, which matters more at 5 a.m. than it does when you are booking.

So Which One?

Start with the route. If Billy Bishop flies where you are going and you are starting from the core, take it — you will be through security while the Pearson passengers are still on the highway. If the route does not exist, or you are coming from the western GTA, or you are checking real luggage for a long trip, Pearson is the right answer and the convenience argument never really applied to you.

Whichever you choose, tell us the airport, the terminal and the flight number, and we will handle the rest. The part of the journey you can control is the part before the gate, and that is the part we are good at.