HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Niagara Falls

$140+ Cheap flights from Puerto Rico 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — YYZ
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Puerto Rico 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.

Cheap flight deals from Puerto Rico to Niagara Falls

Keep the following information in mind while searching for Puerto Rico to Niagara Falls flight deals. Data was last updated November 10, 2025.

Round-trip from

$320
(Kiwi.com)

One-way from

$140
(United Airlines)

Popular in

August

Cheapest in

January

Average price

$529
From Puerto Rico to Niagara Falls
Search Deals
One-way flight from Puerto Rico to Niagara Falls
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($131 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Puerto Rico to Niagara Falls

Cheapest flights from Puerto Rico to Niagara Falls
Explore the most affordable flight options available from Puerto Rico to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 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 11/9. 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
Mon 11/172:57 pmYYZ - SJU
1 stop8h 39mUnited Airlines
Deal found 11/9$350
This American Airlines deal was found by Cheapflights users on 11/7. 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 11/116:25 amSJU - YYZ
1 stop10h 05mAmerican Airlines
Thu 11/1312:34 pmYYZ - SJU
1 stop10h 18mAmerican Airlines
Deal found 11/7$361
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:36 pmSJU - YYZ
2 stops24h 37mMultiple Airlines
Wed 12/319:40 amYYZ - SJU
1 stop15h 59mMultiple Airlines
Deal found 11/9$371
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.
Wed 11/192:05 amSJU - YYZ
1 stop8h 31mUnited Airlines
Thu 11/272:45 pmYYZ - SJU
1 stop6h 37mUnited Airlines
Deal found 11/9$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
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/264:44 pmSJU - YYZ
1 stop6h 48mAmerican Airlines
Fri 11/2811:51 amYYZ - SJU
1 stop8h 07mAmerican Airlines
Deal found 11/9$411

Cheapflights Fare Finder

 
Customize your flight search to find flights from Puerto Rico 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 10, 2025.
Use the filters below to find and compare flights from Puerto Rico to Niagara Falls that are best for you.

Fly from

Puerto Rico

Fly to

Niagara Falls

Route

Depart

Return

Price

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

$350

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Tue 12/23

2:59 am-2:20 pm

1 stop12h 21m

Toronto Pearson Intl

Wed 12/31

7:10 am-10:06 pm

1 stop13h 56m

$414

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Wed 4/29

1:05 am-8:44 am

1 stop7h 39m

Toronto Pearson Intl

Thu 5/7

3:00 pm-11:57 pm

1 stop8h 57m

$435

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Wed 11/26

8:00 am-3:57 pm

1 stop8h 57m

Toronto Pearson Intl

Sun 11/30

7:30 am-11:52 pm

1 stop15h 22m

$444

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

Wed 12/24

4:52 pm-11:59 pm

1 stop8h 07m

Toronto Pearson Intl

Wed 12/31

2:45 pm-10:22 pm

1 stop6h 37m

$510

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Fri 1/23

5:50 pm-11:46 pm

1 stop6h 56m

$140

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Mon 2/16

8:35 am-4:02 pm

1 stop8h 27m

$145

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Wed 2/11

2:05 am-9:36 am

1 stop8h 31m

$145

San JuanToronto

SJU - YYZ

SJUYYZ

San Juan Luis Munoz Marin Intl

Tue 2/17

2:05 am-9:36 am

1 stop8h 31m

$145

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Showing 1-10 of 14 results
1
2

Best time to book a flight from Puerto Rico to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Puerto Rico 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 Puerto Rico to Niagara Falls

What is the cheapest month to book a flight from Puerto Rico to Niagara Falls?

Currently, April is the cheapest month in which you can book a flight from Puerto Rico to Niagara Falls (average of $150). Flying from Puerto Rico 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 PR to NI4?

Find hourly flight availability from Puerto Rico 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 10, 2025.

It’s typically best to fly out from Puerto Rico to Niagara Falls in the evening. Doing so could potentially save you 36% on the flight price compared to flying in the morning, which is usually more expensive.

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 10, 2025.
See what other customers who have flown with United Airlines, American Airlines, and WestJet from Puerto Rico 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
9,011 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
9,011 reviews
United Airlines
7.4
Good
9,011 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,047 reviews
United Airlines
7.4
Good
9,011 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
WestJet
7.2
Good
3,156 reviews
United Airlines
7.4
Good
9,011 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Puerto Rico 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 Puerto Rico to Niagara Falls?

    Airlines like United Airlines fly from Puerto Rico to Niagara Falls in about 7h 04m. The time it takes to get you to your destination can typically vary by up to . There are 1914 mi between Puerto Rico and Niagara Falls.

  • What are the cheapest flights from Puerto Rico to Niagara Falls?

    The cheapest flight price from Puerto Rico to Niagara Falls is $119. On average you can expect to pay $618. The most popular route, (San Juan Luis Munoz Marin Intl - Toronto Pearson Intl), can usually be booked for $520.

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

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

  • How can I find direct flights from Puerto Rico to Niagara Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Puerto Rico to Niagara Falls.

  • Can I find deals for business class flights from Puerto Rico to Niagara Falls?

    Yes. Cheapflights offers flight deals from Puerto Rico 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 Puerto Rico to Niagara Falls?

    Currently, April is the cheapest month in which you can book a flight from Puerto Rico to Niagara Falls (average of $150). Flying from Puerto Rico 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 Puerto Rico to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
Punta Cana to Pierre Elliott Trudeau Intl flights
Bridgetown to Pearson Intl flights
Punta Cana to Pearson Intl flights
Nassau to Pearson Intl flights
Port of Spain to Pearson Intl flights
Kingston to Pearson Intl flights
Luis Munoz Marin Intl to Pearson Intl flights
St. John's to Pearson Intl flights
Luis Munoz Marin Intl to Pierre Elliott Trudeau Intl flights
Puerto Plata to Pearson Intl flights
Fort-de-France to Pierre Elliott Trudeau Intl flights
Montego Bay to Pearson Intl flights
Willemstad to Pearson Intl flights
Oranjestad to Pearson Intl flights
Castries to Pearson Intl flights
Simpson Bay to Pearson Intl flights
Bridgetown to Pierre Elliott Trudeau Intl flights
George Town to Pearson Intl flights
Simpson Bay to Pierre Elliott Trudeau Intl flights
Santo Domingo to Pearson Intl flights
Port Au Prince to Pierre Elliott Trudeau Intl flights
Port of Spain to Pierre Elliott Trudeau Intl flights
Santo Domingo to Pierre Elliott Trudeau Intl flights

Top 3 airlines flying from Puerto Rico to Niagara Falls

Discover the top 3 airlines that operate flights from Puerto Rico 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 10, 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.