Niagara Falls

$89+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — YYZ
Jan 17 — Jan 241
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Niagara Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Diego to Niagara Falls are usually found in February or April, booked 50 days in advance, depart on a Wednesday or Friday and return on a Friday

Cheap 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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Mon 12/2911:11 amSAN - YYZ
1 stop28h 44mMultiple Airlines
Sat 1/177:55 pmYYZ - SAN
1 stop15h 26mMultiple Airlines
Deal found 12/15$439
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:20 pmSAN - YYZ
1 stop9h 59mDelta
Mon 1/196:05 amYYZ - SAN
1 stop7h 28mDelta
Deal found 12/15$489
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Mon 12/2911:11 amSAN - YYZ
1 stop28h 44mMultiple Airlines
Wed 1/219:35 amYYZ - SAN
1 stop9h 34mMultiple Airlines
Deal found 12/15$492
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:20 pmSAN - YYZ
1 stop9h 59mDelta
Sat 1/177:40 amYYZ - SAN
2 stops18h 07mDelta
Deal found 12/15$508
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/306:15 amSAN - YYZ
1 stop13h 29mAmerican Airlines
Tue 1/611:30 amYYZ - SAN
1 stop13h 56mAmerican Airlines
Deal found 12/16$513
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:20 pmSAN - YYZ
1 stop9h 59mDelta
Wed 1/217:50 amYYZ - SAN
2 stops15h 59mDelta
Deal found 12/15$514
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 12/301:06 pmSAN - YYZ
2 stops19h 37mMultiple Airlines
Thu 1/157:55 pmYYZ - SAN
1 stop15h 26mMultiple Airlines
Deal found 12/15$515
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Wed 12/314:02 pmSAN - YYZ
2 stops17h 26mMultiple Airlines
Thu 1/157:55 pmYYZ - SAN
1 stop15h 26mMultiple Airlines
Deal found 12/15$516
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:20 pmSAN - YYZ
1 stop9h 59mDelta
Fri 1/1610:16 amYYZ - SAN
2 stops15h 15mDelta
Deal found 12/15$519
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/251:06 pmSAN - YYZ
1 stop27h 49mMultiple Airlines
Mon 1/57:10 amYYZ - SAN
2 stops41h 48mMultiple Airlines
Deal found 12/16$523
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Mon 12/227:21 pmSAN - YYZ
1 stop8h 26mMultiple Airlines
Mon 1/510:15 pmYYZ - SAN
2 stops26h 43mMultiple Airlines
Deal found 12/15$532
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 12/301:06 pmSAN - YYZ
2 stops19h 37mMultiple Airlines
Fri 1/167:55 pmYYZ - SAN
1 stop14h 22mMultiple Airlines
Deal found 12/15$533

Find 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 December 18, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$401
(Air Canada)

One-way from

$89
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$602
Provider with most accurate pricing for San Diego-Toronto (YTO) flight deals.
Provider most trusted by Cheapflights users for San Diego-Toronto (YTO) flights.
From San Diego to Niagara Falls
One-way flight from San Diego to Niagara Falls
Highest demand for flights based on searches. 10% potential increase in price ($49 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 18, 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

Fri 1/9

1:57 pm-3:35 pm

2 stops22h 38m

Toronto Pearson Intl

Tue 1/13

4:45 pm-10:07 am

1 stop20h 22m

$418

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Fri 1/16

6:05 pm-1:05 pm

1 stop16h 00m

Toronto Pearson Intl

Fri 1/23

9:15 am-11:53 am

Nonstop5h 38m

$420

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Sat 1/10

10:00 pm-9:04 am

1 stop8h 04m

Toronto Pearson Intl

Mon 1/12

10:05 am-6:58 pm

1 stop11h 53m

$421

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 1/14

6:15 am-4:52 pm

1 stop7h 37m

Toronto Pearson Intl

Wed 1/14

9:00 pm-9:40 am

1 stop15h 40m

$432

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Fri 1/9

6:15 am-4:52 pm

1 stop7h 37m

Toronto Pearson Intl

Fri 1/9

9:00 pm-9:40 am

1 stop15h 40m

$432

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Tue 3/3

6:45 pm-9:02 am

2 stops11h 17m

Toronto Pearson Intl

Tue 3/10

6:20 am-2:43 pm

2 stops11h 23m

$434

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Fri 1/23

11:10 am-11:46 pm

2 stops9h 36m

Toronto Pearson Intl

Fri 1/30

12:45 pm-10:37 pm

2 stops12h 52m

$436

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Thu 1/15

10:40 pm-11:48 am

1 stop10h 08m

Toronto Pearson Intl

Sun 1/18

11:00 am-8:49 pm

2 stops12h 49m

$437

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Sat 1/10

10:37 am-9:04 am

2 stops19h 27m

Toronto Pearson Intl

Wed 1/14

10:05 am-6:58 pm

1 stop11h 53m

$439

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 1/7

4:20 pm-11:20 am

2 stops16h 00m

Toronto Pearson Intl

Tue 1/20

6:00 am-10:33 am

1 stop7h 33m

$439

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 20 results
1
2

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 December 12, 2025.

Booking 50 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 $20). 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 December 18, 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.

Weekly flight availability from San Diego to Niagara Falls

Explore weekly flight availability from San Diego to Niagara Falls. 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 December 18, 2025.

The most flights from SAN to NI4 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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

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 December 18, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Delta, and United Airlines 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.

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 2 outbound flights 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 8h 04m. Fly via Alaska Airlines, Air Canada, or Delta 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 cheapest airlines to fly from San Diego to Niagara Falls one-way?

    One-way options have recently been found by users for as low as $106 on Porter Airlines. Other airlines that offer cheap prices include United Airlines from $130 and Delta from $131 one-way.

  • 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 $526, our data indicates the cheapest price to be $214. The most popular route (San Diego - Toronto Pearson Intl), is priced around $220.

  • 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 $20). 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.

See more FAQs

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 San Diego to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.

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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest$146Average$308FlexibilityNo cancel feeOn-time50%
Porter AirlinesCheapest$147Average$314FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$149Average$405FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$220Average$441FlexibilityNo cancel feeOn-time69%
DeltaCheapest$288Average$417FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$319Average$552FlexibilityNo cancel feeOn-time71%

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.