HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Niagara Falls

$141+ Cheap flights from San Juan 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — YYZ
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Juan 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.

Find flight deals from San Juan to Niagara Falls

Cheapest flights from San Juan to Niagara Falls
Explore the most affordable flight options available from San Juan to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

This American Airlines deal was found by Cheapflights users on 11/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:03 pmSJU - YYZ
1 stop15h 22mAmerican Airlines
Thu 1/17:10 pmYYZ - SJU
1 stop15h 29mAmerican Airlines
Deal found 11/10$341
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:20 pmSJU - YYZ
1 stop10h 00mUnited Airlines
Sat 11/1511:00 amYYZ - SJU
1 stop9h 00mUnited Airlines
Deal found 11/11$350
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Wed 11/268:00 amSJU - YYZ
1 stop11h 27mAmerican Airlines
Sun 11/307:30 amYYZ - SJU
1 stop15h 22mAmerican Airlines
Deal found 11/11$361
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/115:09 pmSJU - YYZ
1 stop22h 04mMultiple Airlines
Mon 12/158:30 pmYYZ - SJU
2 stops25h 55mMultiple Airlines
Deal found 11/12$363
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:05 amSJU - YYZ
1 stop8h 31mUnited Airlines
Thu 11/272:45 pmYYZ - SJU
1 stop6h 37mUnited Airlines
Deal found 11/12$391
This United Airlines deal was found by Cheapflights users on 11/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/105:50 pmSJU - YYZ
1 stop6h 56mUnited Airlines
Wed 11/122:45 pmYYZ - SJU
1 stop6h 37mUnited Airlines
Deal found 11/9$400

Cheap flight deals from San Juan to Niagara Falls

Keep the following information in mind while searching for San Juan to Niagara Falls flight deals. Data was last updated November 12, 2025.

Round-trip from

$341
(American Airlines)

One-way from

$141
(United Airlines)

Popular in

November

Cheapest in

April

Average price

$733
From San Juan to Niagara Falls
Search Deals
One-way flight from San Juan to Niagara Falls
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan 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 November 12, 2025.
Use the filters below to find and compare flights from San Juan to Niagara Falls that are best for you.

Fly from

San Juan

Fly to

Niagara Falls

Route

Depart

Return

Price

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Mon 5/4

1:05 am-8:44 am

1 stop7h 39m

Toronto Pearson Intl

Sat 5/9

3:00 pm-11:57 pm

1 stop8h 57m

$341

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Wed 11/26

8:00 am-6:27 pm

1 stop11h 27m

Toronto Pearson Intl

Sun 11/30

7:30 am-11:52 pm

1 stop15h 22m

$361

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Thu 12/11

5:09 pm-2:13 pm

1 stop22h 04m

Toronto Pearson Intl

Mon 12/15

7:15 am-12:16 am

1 stop16h 01m

$370

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Thu 2/19

8:10 am-2:14 pm

1 stop7h 04m

Toronto Pearson Intl

Mon 2/23

2:57 pm-12:36 am

1 stop8h 39m

$390

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Thu 3/5

6:30 am-4:00 pm

1 stop10h 30m

Toronto Pearson Intl

Thu 3/19

7:20 am-10:25 pm

1 stop15h 05m

$446

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Sun 12/21

7:35 am-11:20 pm

1 stop16h 45m

Toronto Pearson Intl

Sun 12/28

8:25 am-2:09 pm

Nonstop4h 44m

$449

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Fri 12/5

2:05 am-9:36 am

1 stop8h 31m

$141

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Fri 1/23

3:55 am-2:20 pm

1 stop11h 25m

$141

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Wed 12/10

2:05 am-9:36 am

1 stop8h 31m

$141

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Thu 11/20

2:05 am-9:36 am

1 stop8h 31m

$145

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 15 results
1
2

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

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

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

Currently, April is the cheapest month in which you can book a flight from San Juan to Niagara Falls (average of $150). Flying from San Juan to Niagara Falls in June is currently the most expensive (average of $550). 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 SJU to NI4?

Find hourly flight availability from San Juan 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 November 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 35% on flights from San Juan to Niagara Falls by exploring options for tickets in the evening.

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 November 12, 2025.
See what other customers who have flown with United Airlines, American Airlines, and WestJet from San Juan to Niagara Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,016 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!
United Airlines
7.4
Good
9,016 reviews
United Airlines
7.4
Good
9,016 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!
American Airlines
7.2
Good
11,049 reviews
United Airlines
7.4
Good
9,016 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!
WestJet
7.2
Good
3,159 reviews
United Airlines
7.4
Good
9,016 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

Related info for your journey

Find useful and relevant information for your journey from San Juan to Niagara Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    A quick flight from San Juan to Niagara Falls can take about 7h 39m. United Airlines provides one of the quickest options available for as low as $341. The distance from San Juan to Niagara Falls is about 1914 mi. This flight may include one or multiple stops.

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

    On average you can expect to pay $618 for a flight from San Juan to Niagara Falls. The cheapest flight overall is $119 while the most popular route, (San Juan Luis Munoz Marin Intl - Toronto Pearson Intl) is currently priced at $320.

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from San Juan to Niagara Falls (average of $150). Flying from San Juan to Niagara Falls in June is currently the most expensive (average of $550). 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 Juan to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Pearson Intl flights
Luis Munoz Marin Intl to Pierre Elliott Trudeau Intl flights

Top 3 airlines flying from San Juan to Niagara Falls

Discover the top 3 airlines that operate flights from San Juan 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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$300Average$448FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$373Average$707FlexibilityNo cancel feeOn-time71%
WestJetCheapest$568Average$762FlexibilityNo cancel feeOn-time60%

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.