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Niagara Falls

$143+ Cheap flights from San Francisco (SFO) to Niagara Falls, ON, 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YYZ
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Niagara Falls are usually found in February or March, booked 82 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from San Francisco to Niagara Falls

Keep the following information in mind while searching for San Francisco to Niagara Falls flight deals. Data was last updated octubre 30, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$268
(Mytrip)

One-way from

$143
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$433
Provider with most accurate pricing for San Francisco-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Toronto (YTO) flights.
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From San Francisco to Niagara Falls
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One-way flight from San Francisco to Niagara Falls
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Highest demand for flights based on searches. 9% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San Francisco to Niagara Falls

Cheapest flights from San Francisco to Niagara Falls
Explore the most affordable flight options available from San Francisco to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/30. 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.
jue. 12/410:15 amSFO - YYZ
2 stops17h 43mMultiple Airlines
mié. 12/106:45 pmYYZ - SFO
1 stop17h 45mMultiple Airlines
Deal found 10/30$268
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.
mar. 11/1810:15 amSFO - YYZ
2 stops17h 43mMultiple Airlines
mar. 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.
dom. 12/145:46 pmSFO - YYZ
1 stop10h 01mMultiple Airlines
vie. 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.
mar. 11/1810:15 amSFO - YYZ
2 stops17h 43mMultiple Airlines
vie. 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.
mar. 11/1810:15 amSFO - YYZ
2 stops17h 43mMultiple Airlines
lun. 11/249:45 amYYZ - SFO
Nonstop5h 55mMultiple Airlines
Deal found 10/28$281
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
lun. 12/154:59 pmSFO - YYZ
1 stop10h 48mMultiple Airlines
vie. 1/309:35 amYYZ - SFO
1 stop12h 30mMultiple Airlines
Deal found 10/30$284

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Niagara Falls 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 octubre 30, 2025.
Use the filters below to find and compare flights from San Francisco to Niagara Falls that are best for you.

Fly from

San Francisco

Fly to

Niagara Falls

Route

Depart

Return

Price

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

lun. 12/1

12:43 am-2:20 pm

1 stop10h 37m

Toronto Pearson Intl

vie. 12/5

6:30 am-9:35 am

Nonstop6h 05m

$403

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

mar. 1/13

12:43 am-2:20 pm

1 stop10h 37m

Toronto Pearson Intl

lun. 1/19

1:00 pm-9:22 pm

1 stop11h 22m

$408

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

jue. 11/20

11:28 pm-7:30 am

Nonstop5h 02m

Toronto Pearson Intl

vie. 1/9

7:40 pm-1:30 am

1 stop8h 50m

$408

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

dom. 1/4

4:42 pm-3:35 pm

2 stops19h 53m

Toronto Pearson Intl

jue. 1/22

4:45 pm-9:58 pm

1 stop32h 13m

$415

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

mié. 12/3

10:45 pm-8:53 am

1 stop7h 08m

Toronto Pearson Intl

mar. 12/9

6:05 am-3:57 pm

2 stops12h 52m

$421

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

mié. 11/19

2:46 pm-3:35 pm

1 stop21h 49m

Toronto Pearson Intl

vie. 11/21

4:45 pm-8:20 am

2 stops18h 35m

$431

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

vie. 1/16

1:00 pm-5:58 am

2 stops13h 58m

Toronto Pearson Intl

mié. 1/21

10:15 pm-12:12 pm

2 stops16h 57m

$451

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

vie. 2/20

1:00 pm-5:58 am

2 stops13h 58m

Toronto Pearson Intl

lun. 2/23

6:30 pm-12:10 pm

2 stops20h 40m

$451

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

vie. 1/16

1:00 pm-12:26 am

1 stop8h 26m

Toronto Pearson Intl

sáb. 1/17

8:00 am-12:12 pm

2 stops31h 12m

$453

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

mié. 12/31

5:45 am-10:50 pm

2 stops14h 05m

Toronto Pearson Intl

mié. 1/7

6:00 am-1:38 pm

2 stops10h 38m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 21 results
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Best time to book a flight from San Francisco to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls 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 Falls

How far ahead should I book a flight from San Francisco to Niagara Falls?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Niagara Falls. 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 Falls, 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 Falls?

Currently, February is the cheapest month in which you can book a flight from San Francisco to Niagara Falls (average of $127). Flying from San Francisco to Niagara Falls 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 NI4?

Find hourly flight availability from San Francisco to Niagara Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

It’s typically best to fly out from San Francisco to Niagara Falls at noon. Doing so could potentially save you 26% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from San Francisco to Niagara Falls?

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

Travelers seeking maximum savings on their San Francisco to Niagara Falls 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 Falls

Get insights into the airlines that provide service to Niagara Falls. 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 Falls. Reviews last updated octubre 30, 2025.
Read reviews from past customers who have flown Porter Airlines, Air Transat, and United Airlines from San Francisco to Niagara Falls. 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.
Porter Airlines
8.0
Very good
384 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

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.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

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.
Air Transat
7.8
Good
469 reviews
Porter Airlines
8.0
Very good
384 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

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.
United Airlines
7.4
Good
8,996 reviews
Porter Airlines
8.0
Very good
384 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

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.
WestJet
7.2
Good
3,152 reviews
Porter Airlines
8.0
Very good
384 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

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.
Air Canada
7.1
Good
10,383 reviews
Porter Airlines
8.0
Very good
384 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.0

Crew

8.6

Comfort

8.0

Food

7.6

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 Falls. 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 Falls?

    If you book a flight to Niagara Falls from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 10 flights from San Francisco to Niagara Falls per day from 8 different airlines.

  • How long is the flight from San Francisco to Niagara Falls?

    A quick flight from San Francisco to Niagara Falls can take about 7h 08m. United Airlines provides one of the quickest options available for as low as $421. The distance between San Francisco and Niagara Falls is about 2253 mi. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from San Francisco to Niagara Falls are WestJet ($148), Alaska Airlines ($153), and Porter Airlines ($172).

  • What are the most reliable airlines from San Francisco to Niagara Falls?

    Before booking your flight to Niagara Falls from San Francisco, check out the most reliable airlines to get you to your destination on time: Air Canada (75%), United Airlines (75%), Porter Airlines( 74%).

  • What are the cheapest flights from San Francisco to Niagara Falls?

    While on average a flight from San Francisco to Niagara Falls 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 $268 for that flight.

  • Can I find deals for flights from San Francisco to Niagara Falls that include hotel bookings?

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

  • How can I find direct flights from San Francisco to Niagara Falls?

    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 Falls.

  • Can I find deals for business class flights from San Francisco to Niagara Falls?

    Yes. Cheapflights offers flight deals from San Francisco to Niagara Falls 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 Falls?

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Niagara Falls (average of $127). Flying from San Francisco to Niagara Falls 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.

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Alternative routes for San Francisco to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from San Francisco to Niagara Falls

Discover the top 8 airlines that operate flights from San Francisco to Niagara Falls. 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 octubre 30, 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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