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Cheap flights from Niagara Falls, ON to San Francisco from C$ 249

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SFO
10 May — 17 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to San Francisco are usually found in January or November, booked 69 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Niagara Falls to San Francisco

Enter your travel dates to find the best prices.

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 10 April 2026.

Thu 28/511:10 p.m.
YYZ
-
SFO
2 stops25h 45m
WestJet
Mon 1/66:05 p.m.
SFO
-
YYZ
1 stop9h 50m
WestJet
Deal found 7/4C$ 396
Wed 29/46:15 a.m.
YYZ
-
SFO
1 stop8h 45m
Multiple Airlines
Mon 11/51:20 p.m.
SFO
-
YYZ
Nonstop5h 05m
Multiple Airlines
Deal found 8/4C$ 397
Tue 5/55:20 p.m.
YYZ
-
SFO
2 stops21h 40m
WestJet
Thu 28/56:00 a.m.
SFO
-
YYZ
2 stops12h 10m
WestJet
Deal found 7/4C$ 400
Tue 28/42:25 p.m.
YYZ
-
SFO
2 stops24h 35m
WestJet
Tue 5/56:00 a.m.
SFO
-
YYZ
2 stops10h 55m
WestJet
Deal found 8/4C$ 401
Sat 23/510:25 p.m.
YYZ
-
SFO
1 stop16h 35m
WestJet
Mon 25/56:05 p.m.
SFO
-
YYZ
1 stop8h 40m
WestJet
Deal found 7/4C$ 403
Fri 12/69:45 a.m.
YYZ
-
SFO
Nonstop5h 35m
Multiple Airlines
Sun 21/66:00 a.m.
SFO
-
YYZ
2 stops10h 55m
Multiple Airlines
Deal found 8/4C$ 404
Fri 12/69:45 a.m.
YYZ
-
SFO
Nonstop5h 35m
Multiple Airlines
Mon 22/66:05 p.m.
SFO
-
YYZ
1 stop9h 50m
Multiple Airlines
Deal found 8/4C$ 405
Fri 1/510:20 p.m.
YYZ
-
SFO
2 stops16h 40m
WestJet
Wed 6/51:00 p.m.
SFO
-
YYZ
2 stops13h 10m
WestJet
Deal found 8/4C$ 407
Wed 6/59:45 a.m.
YYZ
-
SFO
Nonstop5h 38m
Porter Airlines
Wed 13/51:20 p.m.
SFO
-
YYZ
Nonstop5h 05m
Porter Airlines
Deal found 6/4C$ 408
Tue 28/46:15 a.m.
YYZ
-
SFO
1 stop8h 45m
WestJet
Tue 12/56:00 a.m.
SFO
-
YYZ
1 stop8h 10m
WestJet
Deal found 8/4C$ 410
Fri 24/49:50 a.m.
YYZ
-
SFO
Nonstop5h 55m
Porter Airlines
Thu 30/41:45 p.m.
SFO
-
YYZ
Nonstop4h 57m
Porter Airlines
Deal found 7/4C$ 411

Find 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 10 April 2026.

Round-trip from

C$ 396

One-way from

C$ 249

Popular in

December

Cheapest in

January

Average price

C$ 501
WestJet
  • WestJet
  • 28/5-1/6
  • 3 total stops
  • 35h 35m total
  • Niagara Falls to San Francisco
Search Deals
Air Transat
  • Air Transat
  • 6/5
  • Nonstop
  • 5h 38m total
  • Niagara Falls to San Francisco
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 10 April 2026.
Use the filters below to find and compare flights from Niagara Falls to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 1/5

6:10 a.m.-10:25 a.m.

1 stop7h 15m

San Francisco

Sun 10/5

9:55 p.m.-10:19 a.m.

1 stop9h 24m

C$ 480

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 5/5

6:30 a.m.-1:39 p.m.

1 stop10h 09m

San Francisco

Sat 9/5

5:40 a.m.-4:35 p.m.

1 stop7h 55m

C$ 502

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 19/5

6:30 a.m.-9:23 a.m.

Nonstop5h 53m

San Francisco

Sun 24/5

6:05 a.m.-5:56 p.m.

1 stop8h 51m

C$ 512

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 24/4

5:16 p.m.-8:09 p.m.

Nonstop5h 53m

San Francisco

Fri 1/5

11:10 p.m.-9:54 a.m.

1 stop7h 44m

C$ 513

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Mon 27/4

6:30 a.m.-9:23 a.m.

Nonstop5h 53m

San Francisco

Mon 4/5

10:35 p.m.-10:04 a.m.

1 stop8h 29m

C$ 522

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 26/5

6:10 a.m.-7:20 p.m.

2 stops16h 10m

San Francisco

Mon 1/6

11:59 p.m.-1:30 p.m.

1 stop10h 31m

C$ 524

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Thu 23/4

12:45 p.m.-7:19 p.m.

1 stop9h 34m

San Francisco

Sat 2/5

11:56 p.m.-11:49 a.m.

1 stop8h 53m

C$ 524

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Wed 29/4

9:00 p.m.-11:48 a.m.

2 stops17h 48m

San Francisco

Sun 3/5

5:30 a.m.-3:46 p.m.

1 stop7h 16m

C$ 528
Quickest round-trip

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Thu 7/5

6:30 a.m.-9:23 a.m.

Nonstop5h 53m

San Francisco

Sun 10/5

10:42 p.m.-7:00 a.m.

Nonstop5h 18m

C$ 566
Cheapest one-way

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Thu 21/5

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

Nonstop5h 38m

C$ 273

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 21 resultsSorted by cheapest first
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 3 April 2026.

The best time to book flights from Niagara Falls to San Francisco is 69 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, November is the cheapest month in which you can book a flight from Niagara Falls to San Francisco (average of C$ 249). Flying from Niagara Falls to San Francisco in December is currently the most expensive (average of C$ 350). 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 10 April 2026.

It’s optimal to fly from Niagara Falls to San Francisco at noon. By choosing this option you can save up to 50% on the cost of your flight, compared to a flight in the evening.

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 4 April 2026.

Travelers seeking maximum savings on their Niagara Falls to San Francisco flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday at noon 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 10 April 2026.

The most flights from NI4 to SFO are scheduled on a Thursday (25 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (16 on average).

How much does it cost to fly round-trip from Niagara Falls to San Francisco?

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 10 April 2026.
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
8.0
Very good
432 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
432 reviews
Porter Airlines
8.0
Very good
432 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Transat
7.7
Good
534 reviews
Porter Airlines
8.0
Very good
432 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,563 reviews
Porter Airlines
8.0
Very good
432 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,320 reviews
Porter Airlines
8.0
Very good
432 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,915 reviews
Porter Airlines
8.0
Very good
432 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 17.7 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 20 inbound flights from Niagara Falls per day.

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

    For as low as C$ 512, Delta can have you in San Francisco from Niagara Falls in 5h 53m. 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$ 195), Porter Airlines (C$ 211), and Air Transat (C$ 225).

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

    Consider Air Canada (61%), United Airlines (59%) or American Airlines (55%) 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$ 1,832 for a flight from Niagara Falls to San Francisco. The cheapest flight overall is C$ 290 while the most popular route, (Toronto Pearson Intl - San Francisco) is currently priced at C$ 350.

  • 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, November is the cheapest month in which you can book a flight from Niagara Falls to San Francisco (average of C$ 249). Flying from Niagara Falls to San Francisco in December is currently the most expensive (average of C$ 350). 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
San Bruno
Burlingame
Roseville
Livermore
South San Francisco
Novato
Santa Clara
Vallejo

Browse thousands of different options on Cheapflights for your next trip

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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 10 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapestC$ 116AverageC$ 473FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
American AirlinesCheapestC$ 258AverageC$ 664FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 259AverageC$ 479FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 280AverageC$ 381FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 311AverageC$ 489FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 373AverageC$ 578FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 380AverageC$ 576FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 440AverageC$ 600FlexibilityNo 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!

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