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Niagara Falls

$117+ Cheap flights from San Diego (SAN) 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — YYZ
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Niagara Falls are usually found in February or April, booked 69 days in advance, depart on a Wednesday or Friday and return on a Friday

Cheap flight deals from San Diego to Niagara Falls

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

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$335
(Kiwi.com)

One-way from

$117
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$469
Provider with most accurate pricing for San Diego-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for San Diego-Toronto (YTO) flights.
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From San Diego to Niagara Falls
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One-way flight from San Diego to Niagara Falls
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Highest demand for flights based on searches. 5% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 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 Diego to Niagara Falls

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

This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/231:06 pmSAN - YYZ
1 stop27h 49mMultiple Airlines
Tue 1/61:30 pmYYZ - SAN
2 stops26h 08mMultiple Airlines
Deal found 10/29$338
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:15 amSAN - YYZ
1 stop12h 14mAmerican Airlines
Sat 1/1011:30 amYYZ - SAN
1 stop13h 56mAmerican Airlines
Deal found 10/27$342
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.
Sat 11/226:52 pmSAN - YYZ
1 stop8h 28mMultiple Airlines
Thu 11/277:55 pmYYZ - SAN
1 stop15h 45mMultiple Airlines
Deal found 10/28$350
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:20 amSAN - YYZ
1 stop12h 09mAmerican Airlines
Fri 12/56:00 amYYZ - SAN
1 stop11h 16mAmerican Airlines
Deal found 10/28$352
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.
Sat 11/226:52 pmSAN - YYZ
1 stop8h 28mMultiple Airlines
Wed 11/269:40 amYYZ - SAN
2 stops25h 14mMultiple Airlines
Deal found 10/27$359
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.
Fri 12/121:33 pmSAN - YYZ
1 stop13h 47mMultiple Airlines
Fri 12/199:35 amYYZ - SAN
1 stop30h 03mMultiple Airlines
Deal found 10/28$360
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/142:02 pmSAN - YYZ
2 stops15h 36mMultiple Airlines
Mon 12/298:00 pmYYZ - SAN
1 stop19h 11mMultiple Airlines
Deal found 10/29$362
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Fri 11/217:12 pmSAN - YYZ
1 stop8h 08mMultiple Airlines
Sun 12/79:45 amYYZ - SAN
1 stop29h 53mMultiple Airlines
Deal found 10/29$363
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 11/253:49 pmSAN - YYZ
2 stops24h 47mMultiple Airlines
Mon 12/17:55 pmYYZ - SAN
1 stop27h 23mMultiple Airlines
Deal found 10/28$364
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Fri 11/217:12 pmSAN - YYZ
1 stop8h 08mMultiple Airlines
Sun 11/237:55 pmYYZ - SAN
1 stop22h 32mMultiple Airlines
Deal found 10/29$365
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 11/133:59 pmSAN - YYZ
1 stop11h 21mMultiple Airlines
Sun 11/167:55 pmYYZ - SAN
2 stops17h 54mMultiple Airlines
Deal found 10/28$366
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/113:47 pmSAN - YYZ
1 stop25h 45mMultiple Airlines
Mon 12/298:00 pmYYZ - SAN
1 stop19h 11mMultiple Airlines
Deal found 10/29$368

Cheapflights Fare Finder

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

Fly from

San Diego

Fly to

Niagara Falls

Route

Depart

Return

Price

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Tue 12/2

6:20 am-9:29 pm

1 stop12h 09m

Toronto Pearson Intl

Fri 12/5

6:00 am-2:16 pm

1 stop11h 16m

$352

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Tue 1/6

2:13 pm-3:35 pm

2 stops22h 22m

Toronto Pearson Intl

Sat 1/10

4:45 pm-7:17 am

2 stops17h 32m

$427

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Tue 1/20

11:03 am-3:35 pm

2 stops25h 32m

Toronto Pearson Intl

Sat 1/24

4:45 pm-9:59 am

2 stops20h 14m

$437

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Tue 12/2

12:43 pm-3:35 pm

2 stops23h 52m

Toronto Pearson Intl

Fri 12/5

4:45 pm-11:34 am

2 stops21h 49m

$438

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 11/19

6:15 am-3:35 pm

1 stop30h 20m

Toronto Pearson Intl

Sun 11/23

4:45 pm-8:40 am

2 stops18h 55m

$456

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 12/3

10:22 am-3:35 pm

2 stops26h 13m

Toronto Pearson Intl

Fri 12/5

4:45 pm-11:34 am

2 stops21h 49m

$457

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Thu 11/20

3:27 pm-3:35 pm

2 stops21h 08m

Toronto Pearson Intl

Wed 12/10

4:45 pm-7:21 am

2 stops17h 36m

$488

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 12/10

10:29 am-3:35 pm

2 stops26h 06m

Toronto Pearson Intl

Wed 12/17

4:45 pm-1:38 pm

2 stops23h 53m

$489

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Sat 11/22

8:19 pm-3:35 pm

2 stops16h 16m

Toronto Pearson Intl

Tue 12/2

4:45 pm-4:20 pm

2 stops26h 35m

$511

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Thu 12/11

2:16 pm-9:58 am

1 stop16h 42m

Toronto Pearson Intl

Sat 12/13

9:15 am-11:53 am

Nonstop5h 38m

$514

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 Diego to Niagara Falls

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Niagara Falls. Price data was last updated on October 24, 2025.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Niagara Falls. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, December is the cheapest month in which you can book a flight from San Diego to Niagara Falls (average of $19). Flying from San Diego to Niagara Falls in September is currently the most expensive (average of $244). 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 SAN to NI4?

Find hourly flight availability from San Diego 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 October 30, 2025.

A simple way to save on the total cost of your ticket is to fly from San Diego to Niagara Falls at noon. If you’re flexible enough to do this you can expect to save up to 67% on your trip compared to booking a flight in the evening.

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

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

Travelers seeking maximum savings on their San Diego to Niagara Falls flight should consider departing on Wednesday at noon when fares are most often at their lowest. Friday evenings 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 October 30, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Delta, and Air Transat from San Diego to Niagara Falls to help guide your decision. You can also see how each airline stacks up 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.
Delta
7.9
Good
7,997 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
8,998 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
10,380 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 Diego 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 Diego to Niagara Falls?

    San Diego (SAN) is the airport you will fly out of if you book a flight from San Diego to Niagara Falls. You should not have trouble finding flights to Niagara Falls from San Diego; the airport handles an average of 1 outbound flight to Niagara Falls per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the San Diego airport to Niagara Falls. It is only a 2.6 mi journey to San Diego (SAN) from San Diego’s city center.

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

    There are many flights that can get you from San Diego to Niagara Falls in 12h 09m. Fly via American Airlines or Alaska Airlines to get the fastest option. The distance between San Diego and Niagara Falls is about 2153 mi. This flight may include one or multiple stops.

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

    Before booking your flight to Niagara Falls from San Diego, check out the most reliable airlines to get you to your destination on time: Air Canada (70%), United Airlines (70%), Air Canada Rouge( 67%).

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

    Looking for the cheapest flight from San Diego to Niagara Falls? While on average our users pay $709, our data indicates the cheapest price to be $203. The most popular route (San Diego - Toronto Pearson Intl), is priced around $279.

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

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

  • How can I find direct flights from San Diego 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 Diego to Niagara Falls.

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

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

    Currently, December is the cheapest month in which you can book a flight from San Diego to Niagara Falls (average of $19). Flying from San Diego to Niagara Falls in September is currently the most expensive (average of $244). 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 Diego to Niagara Falls

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Top 6 airlines flying from San Diego to Niagara Falls

Discover the top 6 airlines that operate flights from San Diego 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$138Average$314FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$145Average$392FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$146Average$308FlexibilityNo cancel feeOn-time50%
United AirlinesCheapest$220Average$432FlexibilityNo cancel feeOn-time69%
DeltaCheapest$317Average$425FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$319Average$541FlexibilityNo cancel feeOn-time71%

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