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Niagara Falls

$149+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — YYZ
Feb 10 — Feb 171
Tue 2/10
Tue 2/17
1 adult, Economy
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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 January 11, 2026.

Round-trip from

$284
(United Airlines)

One-way from

$149
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$418
From San Juan to Niagara Falls
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One-way flight from San Juan to Niagara Falls
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Highest demand for flights based on searches. 9% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 11, 2026.

This United Airlines deal was found by Cheapflights users on 1/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:00 amSJU - YYZ
1 stop8h 19mUnited Airlines
Mon 4/271:00 pmYYZ - SJU
1 stop7h 34mUnited Airlines
Deal found 1/10$284
This United Airlines deal was found by Cheapflights users on 1/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:00 amSJU - YYZ
1 stop8h 19mUnited Airlines
Tue 4/2810:15 amYYZ - SJU
1 stop10h 19mUnited Airlines
Deal found 1/10$293
This United Airlines deal was found by Cheapflights users on 1/9. 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.
Tue 4/211:00 amSJU - YYZ
1 stop8h 19mUnited Airlines
Sun 4/266:10 amYYZ - SJU
1 stop9h 32mUnited Airlines
Deal found 1/9$294
This American Airlines deal was found by Cheapflights users on 1/11. 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.
Thu 3/55:02 pmSJU - YYZ
1 stop18h 17mAmerican Airlines
Thu 3/1911:40 amYYZ - SJU
1 stop16h 44mAmerican Airlines
Deal found 1/11$304
This American Airlines deal was found by Cheapflights users on 1/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:25 pmSJU - YYZ
1 stop18h 34mAmerican Airlines
Wed 3/181:12 pmYYZ - SJU
1 stop9h 22mAmerican Airlines
Deal found 1/9$305
This American Airlines deal was found by Cheapflights users on 1/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:00 amSJU - YYZ
2 stops10h 41mAmerican Airlines
Mon 3/97:30 amYYZ - SJU
1 stop7h 42mAmerican Airlines
Deal found 1/9$309
This United Airlines deal was found by Cheapflights users on 1/8. 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.
Fri 2/62:05 amSJU - YYZ
1 stop8h 31mUnited Airlines
Sun 2/811:00 amYYZ - SJU
1 stop9h 00mUnited Airlines
Deal found 1/8$314
This United Airlines deal was found by Cheapflights users on 1/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/31:00 amSJU - YYZ
1 stop7h 44mUnited Airlines
Sat 5/93:00 pmYYZ - SJU
1 stop8h 50mUnited Airlines
Deal found 1/10$317
This Kiwi.com deal was found by Cheapflights users on 1/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/135:20 amSJU - YYZ
1 stop9h 56mMultiple Airlines
Sun 2/158:20 pmYYZ - SJU
1 stop12h 57mMultiple Airlines
Deal found 1/10$338

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 January 11, 2026.
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

Fri 5/1

1:00 am-8:44 am

1 stop7h 44m

Toronto Pearson Intl

Mon 5/11

10:05 am-8:34 pm

1 stop10h 29m

$293

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Tue 4/21

1:00 am-9:19 am

1 stop8h 19m

Toronto Pearson Intl

Sun 4/26

6:10 am-3:42 pm

1 stop9h 32m

$294

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Thu 3/5

5:02 pm-10:19 am

1 stop18h 17m

Toronto Pearson Intl

Thu 3/19

11:40 am-4:24 am

1 stop16h 44m

$304

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Wed 3/4

7:00 am-4:41 pm

2 stops10h 41m

Toronto Pearson Intl

Mon 3/9

7:30 am-3:12 pm

1 stop7h 42m

$309

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Wed 2/18

2:05 am-9:36 am

1 stop8h 31m

Toronto Pearson Intl

Sun 2/22

6:10 am-4:36 pm

1 stop9h 26m

$314

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Fri 2/6

2:05 am-9:36 am

1 stop8h 31m

Toronto Pearson Intl

Sun 2/8

11:00 am-9:00 pm

1 stop9h 00m

$314

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Sun 5/3

1:00 am-8:44 am

1 stop7h 44m

Toronto Pearson Intl

Sat 5/9

3:00 pm-11:50 pm

1 stop8h 50m

$317

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Tue 3/3

5:25 pm-10:59 am

1 stop18h 34m

Toronto Pearson Intl

Wed 3/18

1:14 pm-10:58 pm

1 stop9h 44m

$334

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Fri 5/1

1:00 am-8:44 am

1 stop7h 44m

Toronto Pearson Intl

Thu 5/7

12:45 pm-9:24 pm

1 stop8h 39m

$339

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Wed 5/27

1:05 am-8:44 am

1 stop7h 39m

Toronto Pearson Intl

Sat 5/30

12:45 pm-9:24 pm

1 stop8h 39m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

Showing 1-10 of 19 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 August is currently the most expensive (average of $440). 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 January 11, 2026.

When flying from San Juan to Niagara Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 January 11, 2026.
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
9,145 reviews

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

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
9,145 reviews
United Airlines
7.4
Good
9,145 reviews

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

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
11,100 reviews
United Airlines
7.4
Good
9,145 reviews

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

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
3,235 reviews
United Airlines
7.4
Good
9,145 reviews

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

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 44m. United Airlines provides one of the quickest options available for as low as $293. The distance from San Juan to Niagara Falls is about 1914 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from San Juan to Niagara Falls one-way?

    The cheapest airlines for a one-way flight from San Juan to Niagara Falls are United Airlines ($120), WestJet ($127), and American Airlines ($180).

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

    Before booking your flight to Niagara Falls from San Juan, check out the most reliable airlines to get you to your destination on time: Air Canada Rouge (56%), Air Canada (53%), Delta( 50%).

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

    On average you can expect to pay $1,502 for a flight from San Juan to Niagara Falls. The cheapest flight overall is $231 while the most popular route, (San Juan Luis Munoz Marin Intl - Toronto Pearson Intl) is currently priced at $358.

  • 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 August is currently the most expensive (average of $440). 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

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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 January 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$230Average$460FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$322Average$700FlexibilityNo cancel feeOn-time71%
WestJetCheapest$568Average$597FlexibilityNo cancel feeOn-time60%

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