$271 Economy Roundtrip to Toronto (SFO-YTOA) in May from San Francisco

May departures from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) benefit from milder Bay Area weather and increasing nonstop frequency as spring schedules ramp up. Expect morning coastal fog, warmer afternoons and moderate airport traffic that peaks around long weekends. Book 6–12 weeks in advance for the best May fares, and consider mid-week flights for lower prices. Nearby Bay Area cities like San Jose, Oakland and Sacramento are common feeder markets. Use fare alerts and flexible dates to capture discounted SFO to YTOA tickets; search now to compare Air Canada, United and other carriers.

Departing from San Francisco (SFO) FAQs

Nonstop flights from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) typically take about 4 hours 45 minutes to 5 hours depending on routing and winds. If you choose a connecting itinerary in May, total travel time can extend to 7–10+ hours including layovers; always check the itinerary duration before booking.

Yes, several carriers seasonally operate nonstop service between San Francisco International Airport (SFO) and Toronto Pearson (part of Toronto (All Airports) (YTOA)) in May, with Air Canada and United frequently offering daily or near-daily flights. Availability increases around holiday weekends and during peak spring travel, so book early to secure the best fares.

The busiest travel days in May are typically the long weekend around Victoria Day (Canadian holiday) and weekends. Mid-week departures (Tuesday and Wednesday) often have lower passenger loads and reduced fares. Use flexible date searches and set fare alerts to find the best mid-week deals.

Arrive at least 2–3 hours before an international departure, factor in extra time for TSA and possible spring-season congestion at terminals. May weather in the Bay Area can be foggy in the morning and warmer in the afternoon, so plan ground transport accordingly. Check terminal and gate assignments beforehand—SFO frequently updates gates for transborder and international flights.

For travel to Canada, U.S. citizens need a valid passport; other travelers should verify entry requirements with the Government of Canada. As of May, most routine COVID-19 travel restrictions have been lifted, but check airline and public health guidance for testing or masking updates prior to departure. Always carry vaccination documentation or proof if required by destination rules.

San Francisco International Airport (SFO) serves the Bay Area and is commonly used by travelers from San Jose, Oakland, Sacramento, Napa Valley, Monterey and even Los Angeles for international departures. Many travelers combine regional ground transfers or short domestic flights to SFO before the international leg to Toronto in May.

Arriving in Toronto (All Airports) (YTOA) in May offers pleasant spring weather and vibrant city events like Victoria Day weekend activities. Toronto Pearson (part of YTOA) is the primary arrival point for SFO flights; expect efficient customs but allow extra time during holiday weekends. The UP Express and rideshares provide reliable transit to downtown Toronto, while Billy Bishop (YTZ) offers a fast downtown entry for connecting flights. For the best arrival experience search for current transit schedules and pre-book transfers when traveling during May events.

Arriving at Toronto (Any) FAQs

Toronto (All Airports) (YTOA) refers to the Toronto region airports, primarily Toronto Pearson International (YYZ) and Billy Bishop Toronto City Airport (YTZ), with occasional service to nearby Hamilton (YHM). From San Francisco International Airport (SFO), most nonstop flights arrive at Toronto Pearson (YYZ) in May; remember to confirm the airport code on your itinerary to plan ground transfers.

Toronto Pearson (part of Toronto (All Airports) (YTOA)) offers UP Express train service to downtown Toronto, taxis, rideshares and regional transit connections to Mississauga and Brampton. Billy Bishop provides quick ferry or pedestrian tunnel access to downtown; seasonal transit schedules may be extended in May for events. Pre-book transfers when possible for smoother arrivals after an international flight.

May in Toronto brings mild spring weather with daytime highs typically between 12–20°C (54–68°F) and cooler evenings; expect occasional rain and breezy days. Pack a light waterproof jacket, layers and comfortable walking shoes; plan for both sunny afternoons and cooler waterfront breezes, especially near Lake Ontario.

Travelers should confirm passport validity, visa/ETA requirements and any entry declarations before arriving at Toronto (All Airports) (YTOA). Visa-exempt nationals require an Electronic Travel Authorization (eTA) when flying to Canada; always check the Government of Canada website and your airline for the latest entry requirements in May.

After landing at Toronto (All Airports) (YTOA), travelers often visit downtown Toronto, Niagara Falls, Ottawa, Hamilton, Mississauga and cultural areas like the Distillery District and Toronto Islands. Many visitors also use Toronto as a gateway to the Great Lakes region and nearby U.S. border cities such as Buffalo and Rochester.

During May long weekends such as Victoria Day, Toronto (All Airports) (YTOA) can experience higher passenger volumes and fuller ground transport, so plan extra time for customs and baggage claim. Consider arriving earlier in the day, pre-booking airport transfers, and checking for adjusted transit schedules during holiday events.

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May Events & Festivals — San Francisco (SFO) Departures and Toronto (YTOA) Arrivals

May features several events that can affect travel demand between San Francisco International Airport (SFO) and Toronto (All Airports) (YTOA). In Toronto, Victoria Day celebrations, outdoor markets and local festivals increase hotel and flight demand around the long weekend. San Francisco hosts spring events, neighborhood festivals and occasional races which may increase outbound passenger volume. Plan ahead—book hotels and airport transfers early if traveling during these event windows.

Best Time to Fly from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA)

For May travel from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA), the best time to fly for lower fares is mid-week (Tuesday–Thursday) and outside the Victoria Day long weekend. Book about 6–12 weeks out to capture early-bird pricing; last-minute fares can spike during holiday weekends. Early morning departures often have fewer delays and can provide a full day on arrival in Toronto.

Direct vs Connecting Flights — SFO to YTOA May Guide

Nonstop flights from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) save time—typically about 5 hours airborne—and reduce connection risk, making them ideal for business travelers and short trips. Connecting flights often reduce cost and can increase schedule flexibility, but add transfer time and the possibility of missed connections. In May, weigh price differences (sometimes $50–$200 USD) against total travel time and choose based on priorities: speed and convenience (nonstop) or price and routing options (connecting).

Airline Comparison — Flying SFO to YTOA in May (Air Canada, United, WestJet, Others)

Major airlines operating on the San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) route in May include Air Canada, United and occasional WestJet codeshares. Air Canada often offers the most direct flights to Toronto Pearson with full-service amenities and Aeroplan benefits; United provides competitive schedules and Star Alliance connectivity from U.S. hubs; WestJet can be a budget-friendly option on select days. Compare seat maps, baggage allowances and loyalty benefits when choosing, and read recent customer reviews for in-flight service and reliability.

Seasonal Travel Tips for May — SFO to YTOA

May travel between San Francisco International Airport (SFO) and Toronto (All Airports) (YTOA) demands flexible packing: layerable clothing, a light rain jacket and comfortable walking shoes. Arrive earlier for holiday weekends and verify baggage rules—some carriers change allowance on promotional fares. Use mobile boarding passes, enroll in trusted traveler programs if eligible, and download transit apps for UP Express or local transit in Toronto for smooth connections.

Flight Times & Schedules — SFO to YTOA in May

Nonstop flights from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) usually take about 4 hours 45 minutes to 5 hours. Factoring the Pacific to Eastern time change adds 3 hours, so a morning SFO departure arrives in the mid-to-late afternoon local time in Toronto. In May, expect daily or near-daily nonstop services supplemented by connecting itineraries via Vancouver (YVR), Chicago (ORD) or U.S. hubs like Denver and Dallas. Check airline schedules for exact departure times and seasonal frequency.

How to Find Cheap Flights — San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) in May

To find cheap flights from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) in May, search 6–12 weeks ahead, favor mid-week departures and use flexible-date calendars to compare fares. Sign up for fare alerts, set price trackers on Google Flights, and watch for flash sales from Air Canada and United. Consider nearby alternative airports (Oakland, San Jose) for outbound legs to broaden pricing opportunities, and bundle hotels or car rentals to access package discounts. Typical round-trip economy fares in May often range from $300–$600 USD depending on advance purchase and seat availability.

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✈️ Flight Guide: San Francisco (SFO) → Toronto (Any)

Complete travel information for your May journey

Departing from San Francisco (SFO) FAQs

How long is the flight from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) in May?

Are there direct flights from San Francisco International Airport (SFO) to Toronto Pearson (part of YTOA) in May?

What are the busiest days to fly from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) in May?

What airport tips should I know when departing from San Francisco International Airport (SFO) in May?

What documents and COVID-19 guidance apply for travel from San Francisco International Airport (SFO) to Toronto (All Airports) (YTOA) in May?

What nearby cities and destinations are commonly accessed from San Francisco International Airport (SFO) before flying to Toronto (All Airports) (YTOA)?

Arriving at Toronto (Any) FAQs

What airports are included in Toronto (All Airports) (YTOA) and which will I likely land at from San Francisco International Airport (SFO) in May?

What ground transportation options are available upon arriving at Toronto (All Airports) (YTOA) in May?

What is the weather like in Toronto (All Airports) (YTOA) in May and how should I pack?

Are there visa or entry requirements I should verify before landing at Toronto (All Airports) (YTOA) in May?

What nearby destinations are commonly accessed after arriving at Toronto (All Airports) (YTOA) in May?

Are there any May-specific arrival tips for Toronto (All Airports) (YTOA) during long weekends like Victoria Day?