Question 1

What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco round-trip?

Accepted Answer

Flying on WestJet is currently your cheapest option to San Francisco, with prices starting at C$ 390. Additional round-trip tickets that might be worth considering are offered by Porter Airlines and Air Canada, with the lowest prices starting at C$ 409 and C$ 428, respectively. These flights start at 32% lower than the current average price 3 months from now.

Question 2

What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco one-way?

Accepted Answer

The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 239. However, be on the lookout for offers from Porter Airlines and United Airlines, as they are both options that can get you from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco for a low price.

Question 3

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Accepted Answer

The price you pay for your flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 4

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of C$ 276). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in December is currently the most expensive (average of C$ 368). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 5

What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Accepted Answer

Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to San Francisco flight should consider departing on Friday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco

Accepted Answer

The most flights from YUL to SFO are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Question 9

What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Accepted Answer

On average you can expect to pay C$ 1,909 for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco. The cheapest flight overall is C$ 259 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Francisco) is currently priced at C$ 391.

Question 10

What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco consider choosing Air New Zealand (91%), Air Canada (91%) or United Airlines (91%) as they are the most reliable in getting you off to your destination on time.

Question 11

What are the most popular airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Accepted Answer

American Airlines, Air Canada and Porter Airlines are the most popular airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco.

Question 12

What is the cheapest day to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Accepted Answer

Departing on a Wednesday is a good option for securing a great price. You can expect to save up to 53% when planning your travel around this day of the week.

Question 13

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Accepted Answer

Travellers have found it’s best to book a flight 56 days in advance to save up to 78% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 56 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco 1-2 weeks in advance for as low as C$ 500, or C$ 1,021 for flights within the next 24 hours.

Question 14

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Accepted Answer

Flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco lean towards being more expensive in December. Prices are generally better when you fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in February, with the cheapest ticket starting at C$ 332.

Question 15

What is the cheapest time of day to fly from YUL to SFO?

Accepted Answer

It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in the evening. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight in the afternoon.

Question 16

What airport do you fly into for flights to San Francisco from Montreal Pierre Elliott Trudeau Intl?

Accepted Answer

Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Montreal Pierre Elliott Trudeau Intl. On average, San Francisco has 8 inbound flights from Montreal Pierre Elliott Trudeau Intl per day from 6 airlines. San Francisco is conveniently located just 19.0 km from San Francisco’s city centre.

Question 17

Can I find deals for flights from Pierre Elliott Trudeau Intl to San Francisco that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Pierre Elliott Trudeau Intl to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 18

How can I find direct flights from Pierre Elliott Trudeau Intl to San Francisco?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to San Francisco.

Question 19

Can I find deals for business class flights from Pierre Elliott Trudeau Intl to San Francisco?

Accepted Answer

Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 20

How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to San Francisco?

Accepted Answer

Cheapflights makes it easy to find Pierre Elliott Trudeau Intl to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 21

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to San Francisco?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Pierre Elliott Trudeau Intl to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 22

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to San Francisco with no change fees?

Accepted Answer

Need flexible booking options for your flight to San Francisco from Pierre Elliott Trudeau Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 23

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to San Francisco become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from Pierre Elliott Trudeau Intl to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

Round-trip from	C$ 390
One-way from	C$ 238
Popular in	December
Cheapest in	April
Average price	C$ 558
Good round-trip deal	C$ 723 or less
Good one-way deal	C$ 435 or less

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	CheapestC$ 303	AverageC$ 415	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
WestJet	CheapestC$ 329	AverageC$ 393	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
American Airlines	CheapestC$ 351	AverageC$ 667	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air Canada	CheapestC$ 433	AverageC$ 644	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 457	AverageC$ 641	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Transat	CheapestC$ 500	AverageC$ 585	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights

Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco from C$ 238

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to San Francisco are usually found in April or September, booked 42 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Pierre Elliott Trudeau Intl to San Francisco

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Pierre Elliott Trudeau Intl to San Francisco

Cheapest flights from Pierre Elliott Trudeau Intl to San FranciscoExplore the most affordable flight options available from Pierre Elliott Trudeau Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco that are best for you.

Best time to book a flight from Pierre Elliott Trudeau Intl to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Pierre Elliott Trudeau Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to San Francisco. Price data was last updated on 9 June 2025.

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

What is the cheapest time of day to fly from YUL to SFO?

Find hourly flight availability from Pierre Elliott Trudeau Intl to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.

What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to San Francisco. Price data was last updated on 8 June 2025.

Weekly flight availability from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

Reviews of airlines servicing San Francisco

Read reviews from past customers who have flown Porter Airlines, Delta and Brussels Airlines from Montreal to San Francisco. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Francisco from Montreal Pierre Elliott Trudeau Intl?

What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco round-trip?

What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco one-way?

What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Can I find deals for flights from Pierre Elliott Trudeau Intl to San Francisco that include hotel bookings?

How can I find direct flights from Pierre Elliott Trudeau Intl to San Francisco?

Can I find deals for business class flights from Pierre Elliott Trudeau Intl to San Francisco?

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Travelling to a place near Montreal Pierre Elliott Trudeau Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Pierre Elliott Trudeau Intl to San Francisco on these airlines

Choose from the following airlines for your flight from Pierre Elliott Trudeau Intl to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 12 June 2025.

Top 6 airlines flying from Pierre Elliott Trudeau Intl to San Francisco

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to San Francisco?

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to San Francisco?

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to San Francisco become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Pierre Elliott Trudeau Intl to San Francisco
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.