Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Niagara Falls to San Francisco from C$ 237

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SFO
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Niagara Falls to San Francisco are usually found in April or March, booked 75 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Niagara Falls to San Francisco

Keep the following information in mind while searching for Niagara Falls to San Francisco flight deals. Data was last updated 11 September 2025.

Round-trip from

C$ 381

One-way from

C$ 237

Popular in

December

Cheapest in

April

Average price

C$ 560
WestJet
  • WestJet
  • 3/10-13/10
  • 3 total stops
  • 32h 17m total
  • Niagara Falls to San Francisco
Search Deals
WestJet
  • WestJet
  • 8/10
  • 1 total stop
  • 9h 24m total
  • Niagara Falls to San Francisco
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Niagara Falls to San Francisco

Cheapest flights from Niagara Falls to San Francisco
Explore the most affordable flight options available from Niagara Falls to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Fri 3/1012:00 p.m.YYZ - SFO
2 stops12h 24mWestJet
Mon 13/102:45 p.m.SFO - YYZ
1 stop19h 53mWestJet
Deal found 11/9C$ 381
Thu 2/1010:40 a.m.YYZ - SFO
1 stop10h 27mMultiple Airlines
Wed 12/118:00 a.m.SFO - YYZ
1 stop8h 55mMultiple Airlines
Deal found 9/9C$ 382
Tue 14/1010:25 p.m.YYZ - SFO
2 stops16h 29mWestJet
Tue 21/1012:50 p.m.SFO - YYZ
1 stop8h 32mWestJet
Deal found 9/9C$ 384
Wed 15/1010:25 p.m.YYZ - SFO
1 stop25h 59mWestJet
Wed 22/1012:50 p.m.SFO - YYZ
2 stops14h 01mWestJet
Deal found 10/9C$ 385
Fri 17/1012:00 p.m.YYZ - SFO
2 stops12h 24mMultiple Airlines
Fri 7/111:40 p.m.SFO - YYZ
Nonstop4h 57mMultiple Airlines
Deal found 9/9C$ 387
Mon 6/109:45 a.m.YYZ - SFO
Nonstop5h 38mPorter Airlines
Wed 12/111:40 p.m.SFO - YYZ
Nonstop4h 57mPorter Airlines
Deal found 9/9C$ 388
Fri 31/109:45 a.m.YYZ - SFO
Nonstop5h 55mMultiple Airlines
Sat 15/116:39 p.m.SFO - YYZ
1 stop8h 41mMultiple Airlines
Deal found 10/9C$ 389
Sat 4/1010:25 p.m.YYZ - SFO
1 stop16h 29mWestJet
Tue 7/1012:50 p.m.SFO - YYZ
2 stops14h 01mWestJet
Deal found 10/9C$ 391
Fri 17/106:30 a.m.YYZ - SFO
1 stop10h 27mMultiple Airlines
Sun 19/1010:15 a.m.SFO - YYZ
1 stop16h 58mMultiple Airlines
Deal found 11/9C$ 392
Fri 26/97:45 p.m.YYZ - SFO
1 stop17h 05mMultiple Airlines
Tue 30/97:30 a.m.SFO - YYZ
2 stops14h 01mMultiple Airlines
Deal found 10/9C$ 394
Mon 27/109:45 a.m.YYZ - SFO
Nonstop5h 55mPorter Airlines
Mon 3/111:40 p.m.SFO - YYZ
Nonstop4h 57mPorter Airlines
Deal found 10/9C$ 395
Wed 8/103:00 p.m.YYZ - SFO
1 stop9h 24mWestJet
Wed 15/1012:50 p.m.SFO - YYZ
1 stop8h 32mWestJet
Deal found 10/9C$ 396

Cheapflights Fare Finder

 
Customize your flight search to find flights from Niagara Falls to San Francisco 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 629,999 searches. Data last updated 11 September 2025.
Use the filters below to find and compare flights from Niagara Falls to San Francisco that are best for you.

Fly from

Niagara Falls

Fly to

San Francisco

Route

Depart

Return

Price

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sat 4/10

7:00 p.m.-9:32 p.m.

Nonstop5h 32m

San Francisco

Mon 6/10

12:15 p.m.-8:10 p.m.

Nonstop4h 55m

C$ 450

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 31/10

4:45 p.m.-11:50 p.m.

1 stop10h 05m

San Francisco

Sat 8/11

7:37 p.m.-3:35 p.m.

1 stop16h 58m

C$ 452

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 10/10

6:30 a.m.-9:10 a.m.

Nonstop5h 40m

San Francisco

Sat 18/10

11:35 a.m.-1:06 a.m.

1 stop10h 31m

C$ 459

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sun 5/10

6:30 a.m.-9:10 a.m.

Nonstop5h 40m

San Francisco

Wed 15/10

6:30 a.m.-5:14 p.m.

1 stop7h 44m

C$ 477

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 30/9

12:15 p.m.-5:47 p.m.

1 stop8h 32m

San Francisco

Thu 2/10

12:45 a.m.-11:38 a.m.

1 stop7h 53m

C$ 477

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sat 4/10

6:30 a.m.-2:27 p.m.

1 stop10h 57m

San Francisco

Mon 20/10

12:35 a.m.-11:47 a.m.

1 stop8h 12m

C$ 477

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Wed 1/10

11:36 a.m.-6:48 p.m.

1 stop10h 12m

San Francisco

Tue 7/10

12:35 a.m.-11:47 a.m.

1 stop8h 12m

C$ 484

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 10/10

5:50 p.m.-11:43 p.m.

1 stop8h 53m

San Francisco

Fri 17/10

12:35 a.m.-11:47 a.m.

1 stop8h 12m

C$ 485

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Thu 19/2

4:45 p.m.-8:29 a.m.

2 stops18h 44m

San Francisco

Mon 23/2

5:45 p.m.-3:35 p.m.

1 stop18h 50m

C$ 499

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Mon 20/10

9:45 a.m.-12:23 p.m.

Nonstop5h 38m

San Francisco

Wed 5/11

1:40 p.m.-9:37 p.m.

Nonstop4h 57m

C$ 500

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Niagara Falls to San Francisco

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

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

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to San Francisco. Price data was last updated on 29 August 2025.

The best time to book flights from Niagara Falls to San Francisco is 75 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Niagara Falls to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Niagara Falls to San Francisco (average of C$ 276). Flying from Niagara Falls 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.

What is the cheapest time of day to fly from NI4 to SFO?

Find hourly flight availability from Niagara Falls 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 11 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Niagara Falls to San Francisco as you normally would.

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

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

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

Weekly flight availability from Niagara Falls to San Francisco

Explore weekly flight availability from Niagara Falls to San Francisco. 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 11 September 2025.

The most flights from NI4 to SFO are scheduled on a Wednesday (21 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (16 on average).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated 11 September 2025.
See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Niagara Falls to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

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
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

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
7.7
Good
438 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

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
8,937 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

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
3,091 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

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
10,000 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.6

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 Niagara Falls 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 Niagara Falls?

    San Francisco (SFO), located 19.0 km from the city centre, is the airport you fly into when you book flights from Niagara Falls to San Francisco. 8 airlines have flights to San Francisco from Niagara Falls on a regular basis. Booking flights from Niagara Falls to San Francisco should not be difficult; the airport handles an average of 19 inbound flights from Niagara Falls per day.

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

    For as low as C$ 477, Alaska Airlines can have you in San Francisco from Niagara Falls in 5h 40m. There are 3626 km between Niagara Falls and San Francisco. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Niagara Falls to San Francisco are WestJet (C$ 248), Air Canada (C$ 252), and Porter Airlines (C$ 254).

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

    Consider Porter Airlines (82%), Air Transat (82%) or Singapore Airlines (61%) when booking your flight. These represent the most reliable airlines when flying from Niagara Falls to San Francisco.

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

    On average you can expect to pay C$ 1,325 for a flight from Niagara Falls to San Francisco. The cheapest flight overall is C$ 251 while the most popular route, (Toronto Pearson Intl - San Francisco) is currently priced at C$ 258.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Niagara Falls 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.

  • What is the cheapest month to book a flight from Niagara Falls to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Niagara Falls to San Francisco (average of C$ 276). Flying from Niagara Falls 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.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Richmond
Newark
Alameda
Redwood City
Burlingame
San Bruno
South San Francisco
Scotts Valley
Belmont
Novato
Millbrae
Santa Clara
Vallejo

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 Niagara Falls to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Las Vegas flights
Pearson Intl to Los Angeles flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to San Diego flights
Toronto Island to Las Vegas flights
Hamilton to Las Vegas flights
Pierre Elliott Trudeau Intl to San Francisco flights
Pearson Intl to Ontario flights
Pearson Intl to Santa Ana flights
Region of Waterloo Intl to Las Vegas flights
Toronto Island to Los Angeles flights
Pierre Elliott Trudeau Intl to San Diego flights
Toronto Island to San Francisco flights
Hamilton to San Francisco flights
Ottawa to Las Vegas flights
Pearson Intl to San Jose flights
Pearson Intl to Palm Springs flights
Region of Waterloo Intl to Los Angeles flights
Region of Waterloo Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Ontario flights
Hamilton to Los Angeles flights
Ottawa to Los Angeles flights
Pearson Intl to Sacramento flights
London to Los Angeles flights
Pearson Intl to Burbank flights
Toronto Island to San Diego flights
Pearson Intl to Oakland flights
Pearson Intl to Fresno flights
Ottawa to San Francisco flights
Pierre Elliott Trudeau Intl to Sacramento flights
Hamilton to Santa Ana flights
Ottawa to Ontario flights
Pierre Elliott Trudeau Intl to Santa Ana flights
London to Las Vegas flights
Pierre Elliott Trudeau Intl to Palm Springs flights
Ottawa to San Diego flights
Pierre Elliott Trudeau Intl to Burbank flights
Pearson Intl to Reno flights
Region of Waterloo Intl to San Diego flights
Pierre Elliott Trudeau Intl to San Jose flights
Hamilton to Palm Springs flights
Region of Waterloo Intl to Palm Springs flights
Hamilton to San Diego flights
Region of Waterloo Intl to San Jose flights
Pearson Intl to Santa Barbara flights
Hamilton to San Jose flights
Pearson Intl to Monterey flights

Top 8 airlines flying from Niagara Falls to San Francisco

Discover the top 8 airlines that operate flights from Niagara Falls to San Francisco. 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 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 258AverageC$ 575FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 287AverageC$ 377FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 299AverageC$ 480FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 330AverageC$ 562FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 348AverageC$ 491FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Alaska AirlinesCheapestC$ 423AverageC$ 604FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air TransatCheapestC$ 425AverageC$ 513FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 431AverageC$ 601FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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 Niagara Falls to San Francisco?

Cheapflights helps you search for flights from Niagara Falls to San Francisco via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Niagara Falls to San Francisco?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Niagara Falls to San Francisco.

Can Cheapflights find flights from Niagara Falls to San Francisco with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Niagara Falls to San Francisco, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Niagara Falls to San Francisco become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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.