Niagara-on-the-Lake

$163+ Cheap flights from San Francisco (SFO) to Niagara-on-the-Lake, Canada

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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YYZ
Jan 16 — Jan 231
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Niagara-on-the-Lake with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Francisco to Niagara-on-the-Lake are usually found in February or April, booked 82 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from San Francisco to Niagara-on-the-Lake

Cheapest flights from San Francisco to Niagara-on-the-Lake
Explore the most affordable flight options available from San Francisco to Niagara-on-the-Lake. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:00 amSFO - YYZ
2 stops38h 11mMultiple Airlines
Thu 1/159:50 amYYZ - SFO
Nonstop5h 53mMultiple Airlines
Deal found 12/15$400
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:00 amSFO - YYZ
2 stops38h 11mMultiple Airlines
Tue 1/139:50 amYYZ - SFO
Nonstop5h 53mMultiple Airlines
Deal found 12/15$424
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:40 pmSFO - YYZ
Nonstop4h 59mPorter Airlines
Sun 1/119:50 amYYZ - SFO
Nonstop5h 53mPorter Airlines
Deal found 12/16$458
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:40 pmSFO - YYZ
Nonstop4h 59mMultiple Airlines
Thu 1/81:30 pmYYZ - SFO
3 stops35h 55mMultiple Airlines
Deal found 12/16$464
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:40 pmSFO - YYZ
Nonstop4h 59mMultiple Airlines
Sun 1/118:00 pmYYZ - SFO
2 stops29h 25mMultiple Airlines
Deal found 12/16$469
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:40 pmSFO - YYZ
Nonstop4h 59mMultiple Airlines
Sun 1/111:30 pmYYZ - SFO
2 stops23h 16mMultiple Airlines
Deal found 12/16$476
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:40 pmSFO - YYZ
Nonstop4h 59mMultiple Airlines
Wed 1/78:00 amYYZ - SFO
2 stops26h 53mMultiple Airlines
Deal found 12/16$479
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:40 pmSFO - YYZ
Nonstop4h 59mMultiple Airlines
Fri 1/93:40 pmYYZ - SFO
2 stops20h 50mMultiple Airlines
Deal found 12/16$482
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:00 amSFO - YYZ
2 stops21h 47mMultiple Airlines
Thu 1/157:55 pmYYZ - SFO
1 stop14h 53mMultiple Airlines
Deal found 12/15$485
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:00 amSFO - YYZ
2 stops21h 47mMultiple Airlines
Wed 1/149:50 amYYZ - SFO
Nonstop5h 53mMultiple Airlines
Deal found 12/15$490

Find flight deals from San Francisco to Niagara-on-the-Lake

Keep the following information in mind while searching for San Francisco to Niagara-on-the-Lake flight deals. Data was last updated December 17, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$296
(Kiwi.com)

One-way from

$163
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$653
Provider with most accurate pricing for San Francisco-Toronto (YTO) flight deals.
Provider most trusted by Cheapflights users for San Francisco-Toronto (YTO) flights.
From San Francisco to Niagara-on-the-Lake
One-way flight from San Francisco to Niagara-on-the-Lake
Highest demand for flights based on searches. 13% potential increase in price ($70 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Niagara-on-the-Lake that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 17, 2025.
Use the filters below to find and compare flights from San Francisco to Niagara-on-the-Lake that are best for you.

Fly from

San Francisco

Fly to

Niagara-on-the-Lake

Route

Depart

Return

Price

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Mon 1/12

1:45 pm-9:42 pm

Nonstop4h 57m

Toronto Pearson Intl

Sun 1/18

9:50 am-12:43 pm

Nonstop5h 53m

$309

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Thu 1/15

1:45 pm-9:42 pm

Nonstop4h 57m

Toronto Pearson Intl

Sun 1/18

9:50 am-12:43 pm

Nonstop5h 53m

$312

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Thu 1/29

1:00 pm-5:58 am

2 stops13h 58m

Toronto Pearson Intl

Mon 2/23

10:15 pm-12:10 pm

2 stops16h 55m

$320

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Mon 2/2

7:00 am-3:35 pm

1 stop29h 35m

Toronto Pearson Intl

Wed 2/25

4:45 pm-10:56 pm

1 stop9h 11m

$348

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Fri 1/30

2:30 pm-3:35 pm

1 stop22h 05m

Toronto Pearson Intl

Fri 2/6

4:45 pm-11:03 pm

1 stop9h 18m

$348

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Fri 1/30

7:40 pm-3:35 pm

1 stop16h 55m

Toronto Pearson Intl

Tue 2/24

4:45 pm-8:46 am

2 stops19h 01m

$355

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Sun 2/1

9:00 am-3:35 pm

1 stop27h 35m

Toronto Pearson Intl

Tue 2/24

4:45 pm-2:02 pm

1 stop24h 17m

$356

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Sat 1/31

6:18 pm-3:35 pm

1 stop18h 17m

Toronto Pearson Intl

Tue 2/24

4:45 pm-10:37 am

1 stop20h 52m

$356

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Fri 1/30

9:00 am-3:35 pm

1 stop27h 35m

Toronto Pearson Intl

Sun 2/22

4:45 pm-11:59 pm

1 stop10h 14m

$377

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Wed 1/14

12:00 pm-3:35 pm

1 stop24h 35m

Toronto Pearson Intl

Sun 1/18

4:45 pm-11:03 pm

1 stop9h 18m

$380

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from San Francisco to Niagara-on-the-Lake

Have a flexible travel schedule? Discover the best time to fly to Niagara-on-the-Lake from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Niagara-on-the-Lake

How far ahead should I book a flight from San Francisco to Niagara-on-the-Lake?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Niagara-on-the-Lake. Price data was last updated on December 12, 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Niagara-on-the-Lake, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Francisco to Niagara-on-the-Lake?

Currently, February is the cheapest month in which you can book a flight from San Francisco to Niagara-on-the-Lake (average of $127). Flying from San Francisco to Niagara-on-the-Lake in August is currently the most expensive (average of $202). 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.

What is the cheapest time of day to fly from SFO to N1A?

Find hourly flight availability from San Francisco to Niagara-on-the-Lake. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 17, 2025.

It’s optimal to fly from San Francisco to Niagara-on-the-Lake at noon. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from San Francisco to Niagara-on-the-Lake?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Niagara-on-the-Lake. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to Niagara-on-the-Lake flight should consider departing on Sunday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to Niagara-on-the-Lake

Explore weekly flight availability from San Francisco to Niagara-on-the-Lake. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 17, 2025.

The most flights from SFO to N1A are scheduled on a Monday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

Reviews of airlines servicing Niagara-on-the-Lake

Get insights into the airlines that provide service to Niagara-on-the-Lake. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Niagara-on-the-Lake. Reviews last updated December 17, 2025.
Read through reviews of airlines operating flights from San Francisco to Niagara-on-the-Lake, such as Porter Airlines, Air Transat, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.6

Entertainment

7.0

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Food

7.6

Entertainment

7.0

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Food

7.6

Entertainment

7.0

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Food

7.6

Entertainment

7.0

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Food

7.6

Entertainment

7.0

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Food

7.6

Entertainment

7.0

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Niagara-on-the-Lake. 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 from for flights from San Francisco to Niagara-on-the-Lake?

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Niagara-on-the-Lake. 8 airlines have flights from San Francisco to Niagara-on-the-Lake on a regular basis. Booking flights from San Francisco to Niagara-on-the-Lake should not be difficult; the airport handles an average of 18 outbound flights to Niagara-on-the-Lake per day.

  • How long is the flight from San Francisco to Niagara-on-the-Lake?

    Porter Airlines, WestJet, and Alaska Airlines can get you from San Francisco to Niagara-on-the-Lake in just under 4h 57m. Your travel time can differ by up to 24h 38m. There are 2253 mi between San Francisco and Niagara-on-the-Lake. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from San Francisco to Niagara-on-the-Lake one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $104. However, be on the lookout for offers from Flair Airlines and Air Canada, as they are both options that can get you from San Francisco to Niagara-on-the-Lake for a low price.

  • What are the most reliable airlines from San Francisco to Niagara-on-the-Lake?

    The top 3 most reliable airlines when flying from San Francisco to Niagara-on-the-Lake are Brussels Airlines (100%), United Airlines (85%) and Austrian Airlines (84%).

  • What are the cheapest flights from San Francisco to Niagara-on-the-Lake?

    While on average a flight from San Francisco to Niagara-on-the-Lake is generally $1,190, our data shows the cheapest flight currently is $156. When looking at the most popular route, (San Francisco - Toronto Pearson Intl), you can expect to pay $212 for that flight.

  • Can I find deals for flights from San Francisco to Niagara-on-the-Lake that include hotel bookings?

    Yes. In addition to deals on San Francisco to Niagara-on-the-Lake flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Niagara-on-the-Lake?

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

  • Can I find deals for business class flights from San Francisco to Niagara-on-the-Lake?

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

  • What is the cheapest month to book a flight from San Francisco to Niagara-on-the-Lake?

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Niagara-on-the-Lake (average of $127). Flying from San Francisco to Niagara-on-the-Lake in August is currently the most expensive (average of $202). 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.

See more FAQs

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.

Alternative routes for San Francisco to Niagara-on-the-Lake

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from San Francisco to Niagara-on-the-Lake

Discover the top 8 airlines that operate flights from San Francisco to Niagara-on-the-Lake. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$36Average$81FlexibilityNo cancel feeOn-time62%
Porter AirlinesCheapest$173Average$392FlexibilityNo cancel feeOn-time52%
Air TransatCheapest$185Average$448FlexibilityNo cancel feeOn-time50%
DeltaCheapest$197Average$525FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$199Average$494FlexibilityNo cancel feeOn-time67%
WestJetCheapest$212Average$311FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$356Average$572FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$403Average$606FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.