Niagara-on-the-Lake

$141+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YYZ
Nov 28 — Dec 51
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Cheapflights Tip: The best prices from San Francisco to Niagara-on-the-Lake are usually found in February or March, booked 82 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Find 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 October 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/1810:15 amSFO - YYZ
2 stops17h 43mMultiple Airlines
Tue 11/259:35 amYYZ - SFO
1 stop25h 16mMultiple Airlines
Deal found 10/28$270
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sun 12/145:46 pmSFO - YYZ
1 stop10h 01mMultiple Airlines
Fri 1/168:00 pmYYZ - SFO
1 stop22h 53mMultiple Airlines
Deal found 10/27$275
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/1810:15 amSFO - YYZ
2 stops17h 43mMultiple Airlines
Fri 11/2110:15 pmYYZ - SFO
1 stop14h 15mMultiple Airlines
Deal found 10/28$278
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/1810:15 amSFO - YYZ
2 stops17h 43mMultiple Airlines
Sat 11/229:45 amYYZ - SFO
Nonstop5h 55mMultiple Airlines
Deal found 10/28$279
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/1810:15 amSFO - YYZ
2 stops17h 43mMultiple Airlines
Mon 11/249:45 amYYZ - SFO
Nonstop5h 55mMultiple Airlines
Deal found 10/28$281
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/410:15 amSFO - YYZ
1 stop11h 23mMultiple Airlines
Wed 12/1010:15 pmYYZ - SFO
1 stop14h 15mMultiple Airlines
Deal found 10/28$283
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/410:15 amSFO - YYZ
1 stop11h 23mMultiple Airlines
Thu 12/117:55 pmYYZ - SFO
1 stop14h 53mMultiple Airlines
Deal found 10/28$285
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/410:15 amSFO - YYZ
3 stops16h 43mMultiple Airlines
Sun 12/79:45 amYYZ - SFO
Nonstop5h 55mMultiple Airlines
Deal found 10/28$288
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:15 amSFO - YYZ
2 stops17h 43mMultiple Airlines
Mon 12/89:00 pmYYZ - SFO
1 stop15h 30mMultiple Airlines
Deal found 10/27$289

Cheap 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 October 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$270
(Kiwi.com)

One-way from

$141
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$433
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. 9% potential increase in price ($46 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 October 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 October 29, 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 11/24

11:28 pm-7:30 am

Nonstop5h 02m

Toronto Pearson Intl

Thu 11/27

5:55 pm-8:50 pm

Nonstop5h 55m

$393

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Mon 11/17

11:28 pm-7:30 am

Nonstop5h 02m

Toronto Pearson Intl

Fri 11/21

5:55 pm-8:50 pm

Nonstop5h 55m

$393

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Sun 11/16

12:43 am-2:20 pm

1 stop10h 37m

Toronto Pearson Intl

Thu 11/20

6:30 am-9:35 am

Nonstop6h 05m

$403

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Mon 11/17

12:43 am-2:20 pm

1 stop10h 37m

Toronto Pearson Intl

Tue 12/2

5:55 pm-8:50 pm

Nonstop5h 55m

$403

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Thu 11/20

11:28 pm-7:30 am

Nonstop5h 02m

Toronto Pearson Intl

Fri 1/9

7:40 pm-1:30 am

1 stop8h 50m

$408

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Wed 11/26

1:25 pm-11:46 pm

1 stop7h 21m

Toronto Pearson Intl

Sun 12/7

7:40 pm-1:15 am

1 stop8h 35m

$418

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Wed 12/3

7:37 pm-8:53 am

2 stops10h 16m

Toronto Pearson Intl

Tue 12/9

12:13 pm-10:31 pm

2 stops13h 18m

$420

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Wed 1/14

6:32 pm-9:04 am

2 stops11h 32m

Toronto Pearson Intl

Sun 1/18

6:00 am-1:38 pm

2 stops10h 38m

$420

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Thu 12/25

10:13 am-3:35 pm

1 stop26h 22m

Toronto Pearson Intl

Thu 1/8

4:45 pm-9:30 am

2 stops19h 45m

$453

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Fri 11/28

1:00 pm-12:26 am

1 stop8h 26m

Toronto Pearson Intl

Sun 11/30

9:40 am-12:12 pm

2 stops53h 32m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 21 results
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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 October 24, 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 December is currently the most expensive (average of $212). 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 October 29, 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 26% on the cost of your flight, compared to a flight in the afternoon.

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.

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 October 29, 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.

Comfort

8.0

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Comfort

8.0

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Comfort

8.0

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Comfort

8.0

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Comfort

8.0

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Comfort

8.0

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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 16 outbound flights to Niagara-on-the-Lake per day.

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

    United Airlines can get you from San Francisco to Niagara-on-the-Lake in just under 5h 02m. Your travel time will be generally consistent. There are 2253 mi between San Francisco and Niagara-on-the-Lake. Generally, flights for this route are nonstop.

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

    The cheapest airline one-way is Flair Airlines, with whom users have recently found tickets for as low as $164. However, be on the lookout for offers from Alaska Airlines and United Airlines, 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 Air Canada (75%), United Airlines (75%) and Porter Airlines (74%).

  • 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 $1,019, our data shows the cheapest flight currently is $129. When looking at the most popular route, (San Francisco - Toronto Pearson Intl), you can expect to pay $252 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 December is currently the most expensive (average of $212). 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

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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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$36Average$81FlexibilityNo cancel feeOn-time62%
Porter AirlinesCheapest$170Average$390FlexibilityNo cancel feeOn-time52%
Air TransatCheapest$191Average$422FlexibilityNo cancel feeOn-time50%
Air CanadaCheapest$197Average$493FlexibilityNo cancel feeOn-time67%
DeltaCheapest$197Average$550FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$214Average$310FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$356Average$567FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$403Average$554FlexibilityNo cancel feeOn-time71%

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