HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Niagara Falls

$204+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — YYZ
Jun 9 — Jun 161
Tue 6/9
Tue 6/16
1 adult, Economy
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 March or May, booked 6 days in advance, depart on a Friday or Wednesday 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 May 10, 2026.

This Trip.com deal was found by Cheapflights users on 5/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:30 pm
SAN
-
YYZ
1 stop11h 15m
WestJet
Sat 9/127:00 am
YYZ
-
SAN
1 stop10h 10m
WestJet
Deal found 5/5$322
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 10/63:30 pm
SAN
-
YYZ
1 stop11h 15m
WestJet
Tue 10/137:00 am
YYZ
-
SAN
1 stop10h 10m
WestJet
Deal found 5/9$330
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 9/173:30 pm
SAN
-
YYZ
1 stop11h 15m
WestJet
Wed 9/238:00 am
YYZ
-
SAN
1 stop9h 10m
WestJet
Deal found 5/6$331
This FlightHub deal was found by Cheapflights users on 5/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/153:30 pm
SAN
-
YYZ
1 stop11h 15m
WestJet
Thu 10/228:00 am
YYZ
-
SAN
1 stop9h 10m
WestJet
Deal found 5/10$334
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 9/113:30 pm
SAN
-
YYZ
1 stop11h 15m
WestJet
Sun 9/138:00 am
YYZ
-
SAN
1 stop9h 10m
WestJet
Deal found 5/6$339
This FlightHub deal was found by Cheapflights users on 5/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:30 pm
SAN
-
YYZ
1 stop11h 15m
WestJet
Mon 9/218:00 am
YYZ
-
SAN
1 stop9h 10m
WestJet
Deal found 5/10$342
This FlightHub deal was found by Cheapflights users on 5/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:30 pm
SAN
-
YYZ
1 stop11h 15m
WestJet
Mon 10/57:00 am
YYZ
-
SAN
1 stop10h 10m
WestJet
Deal found 5/6$343
This oojo deal was found by Cheapflights users on 5/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:30 pm
SAN
-
YYZ
1 stop11h 15m
WestJet
Tue 9/156:10 am
YYZ
-
SAN
2 stops11h 00m
WestJet
Deal found 5/9$344
This Trip.com deal was found by Cheapflights users on 5/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:30 pm
SAN
-
YYZ
1 stop11h 15m
WestJet
Mon 9/1410:25 pm
YYZ
-
SAN
1 stop18h 45m
WestJet
Deal found 5/6$356

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 May 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$322
(Trip.com)

One-way from

$204
(Kiwi.com)

Popular in

February

Cheapest in

March

Average price

$391
Provider with most accurate pricing for San Diego-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Toronto (YTO) flights.
Search Deals
From San Diego to Niagara Falls
Search Deals
One-way flight from San Diego to Niagara Falls
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Thu 6/4

10:40 pm-9:54 am

1 stop8h 14m

Toronto Pearson Intl

Mon 6/8

7:00 am-11:21 am

1 stop7h 21m

$504

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Thu 6/4

10:40 pm-9:54 am

1 stop8h 14m

Toronto Pearson Intl

Tue 6/9

6:30 am-11:51 am

1 stop8h 21m

$504

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Sat 7/25

6:15 am-5:24 pm

1 stop8h 09m

Toronto Pearson Intl

Mon 8/3

9:45 am-6:14 pm

1 stop11h 29m

$517

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 6/17

6:15 am-4:35 pm

1 stop7h 20m

Toronto Pearson Intl

Mon 6/22

5:45 pm-11:53 pm

1 stop9h 08m

$519

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Mon 6/8

10:15 pm-11:19 am

1 stop10h 04m

Toronto Pearson Intl

Tue 6/16

2:29 pm-6:21 pm

1 stop6h 52m

$519

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 6/24

3:30 pm-5:45 am

1 stop11h 15m

Toronto Pearson Intl

Mon 6/29

6:15 am-2:10 pm

1 stop10h 55m

$590

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Thu 5/28

7:30 am-11:16 pm

1 stop12h 46m

Toronto Pearson Intl

Mon 6/1

6:12 pm-10:00 pm

1 stop6h 48m

$590

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Fri 6/12

10:40 pm-9:54 am

1 stop8h 14m

Toronto Pearson Intl

Sat 6/27

8:45 am-10:34 pm

1 stop16h 49m

$594

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Sat 6/27

10:25 pm-9:54 am

1 stop8h 29m

Toronto Pearson Intl

Sat 7/4

7:00 am-11:21 am

1 stop7h 21m

$594

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Mon 8/3

10:25 pm-9:54 am

1 stop8h 29m

Toronto Pearson Intl

Sun 8/16

7:00 am-11:15 am

1 stop7h 15m

$594

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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

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 May 10, 2026.

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

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 May 10, 2026.
Peruse reviews from past customers who have flown with Porter Airlines,Delta, andUnited 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.
Porter Airlines
8.0
Very good
437 reviews

Boarding

8.2

Food

7.6

Overall

8.0

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
437 reviews
Porter Airlines
8.0
Very good
437 reviews

Boarding

8.2

Food

7.6

Overall

8.0

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.
Delta
7.9
Good
8,455 reviews
Porter Airlines
8.0
Very good
437 reviews

Boarding

8.2

Food

7.6

Overall

8.0

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
9,694 reviews
Porter Airlines
8.0
Very good
437 reviews

Boarding

8.2

Food

7.6

Overall

8.0

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.
American Airlines
7.1
Good
11,667 reviews
Porter Airlines
8.0
Very good
437 reviews

Boarding

8.2

Food

7.6

Overall

8.0

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
11,012 reviews
Porter Airlines
8.0
Very good
437 reviews

Boarding

8.2

Food

7.6

Overall

8.0

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 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 5 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 09m. Fly via United Airlines 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 $133 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from $143 and United Airlines from $156 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 $494, our data indicates the cheapest price to be $210. The most popular route (San Diego - Toronto Pearson Intl), is priced around $345.

  • 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.

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.

Top 5 airlines flying from San Diego to Niagara Falls

Discover the top 5 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 May 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$147Average$324FlexibilityNo cancel feeOn-time52%
DeltaCheapest$213Average$454FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$240Average$479FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$273Average$519FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$388Average$554FlexibilityNo 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.