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Cheap flights from Niagara Falls, ON to San Juan from C$ 182

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 19/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SJU
7 Mar — 14 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to San Juan are usually found in October or September, booked 13 days in advance, depart on a Monday or Wednesday and return on a Thursday

Cheap flight deals from Niagara Falls to San Juan

Enter your travel dates to find the best prices.

Cheapest flights from Niagara Falls to San Juan
Explore the most affordable flight options available from Niagara Falls to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 February 2026.

Wed 18/22:57 p.m.
YYZ
-
SJU
1 stop8h 39m
United Airlines
Tue 24/22:05 a.m.
SJU
-
YYZ
1 stop8h 31m
United Airlines
Deal found 2/2C$ 421
Tue 24/22:57 p.m.
YYZ
-
SJU
1 stop8h 39m
United Airlines
Thu 5/32:05 a.m.
SJU
-
YYZ
1 stop8h 31m
United Airlines
Deal found 3/2C$ 425
Sun 1/32:57 p.m.
YYZ
-
SJU
1 stop8h 39m
United Airlines
Tue 3/32:05 a.m.
SJU
-
YYZ
1 stop8h 31m
United Airlines
Deal found 1/2C$ 427
Fri 20/22:57 p.m.
YYZ
-
SJU
1 stop8h 39m
United Airlines
Thu 5/32:05 a.m.
SJU
-
YYZ
1 stop8h 31m
United Airlines
Deal found 3/2C$ 430
Fri 6/212:39 p.m.
YYZ
-
SJU
1 stop10h 17m
American Airlines
Fri 13/26:00 a.m.
SJU
-
YYZ
1 stop10h 30m
American Airlines
Deal found 5/2C$ 434
Wed 22/46:30 a.m.
YYZ
-
SJU
1 stop30h 03m
Multiple Airlines
Tue 28/43:36 p.m.
SJU
-
YYZ
1 stop22h 29m
Multiple Airlines
Deal found 1/2C$ 436
Wed 4/26:00 a.m.
YYZ
-
SJU
1 stop11h 22m
American Airlines
Wed 11/26:00 a.m.
SJU
-
YYZ
1 stop7h 18m
American Airlines
Deal found 2/2C$ 437
Tue 3/37:10 a.m.
YYZ
-
SJU
1 stop14h 59m
Multiple Airlines
Tue 10/35:00 a.m.
SJU
-
YYZ
1 stop9h 20m
Multiple Airlines
Deal found 3/2C$ 438
Sun 8/211:35 a.m.
YYZ
-
SJU
1 stop9h 04m
American Airlines
Sat 14/28:40 a.m.
SJU
-
YYZ
2 stops9h 49m
American Airlines
Deal found 4/2C$ 440
Sat 14/27:30 a.m.
YYZ
-
SJU
1 stop16h 22m
American Airlines
Wed 18/28:00 a.m.
SJU
-
YYZ
2 stops11h 29m
American Airlines
Deal found 2/2C$ 441
Tue 3/27:30 a.m.
YYZ
-
SJU
2 stops9h 52m
American Airlines
Tue 10/26:05 a.m.
SJU
-
YYZ
1 stop10h 58m
American Airlines
Deal found 2/2C$ 444
Mon 23/23:40 p.m.
YYZ
-
SJU
1 stop22h 51m
Multiple Airlines
Wed 4/34:06 p.m.
SJU
-
YYZ
2 stops28h 49m
Multiple Airlines
Deal found 4/2C$ 445

Find flight deals from Niagara Falls to San Juan

Keep the following information in mind while searching for Niagara Falls to San Juan flight deals. Data was last updated 5 February 2026.

Round-trip from

C$ 421

One-way from

C$ 182

Popular in

December

Cheapest in

October

Average price

C$ 771
United Airlines
  • United Airlines
  • 18/2-24/2
  • 2 total stops
  • 17h 10m total
  • Niagara Falls to San Juan
Search Deals
Air Canada
  • Air Canada
  • 19/4
  • Nonstop
  • 4h 25m total
  • Niagara Falls to San Juan
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Niagara Falls to San Juan 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 629,999 searches. Data last updated 5 February 2026.
Use the filters below to find and compare flights from Niagara Falls to San Juan that are best for you.

Fly from

Niagara Falls

Fly to

San Juan

Route

Depart

Return

Price

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Wed 18/2

2:57 p.m.-12:36 a.m.

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Tue 24/2

2:05 a.m.-9:36 a.m.

1 stop8h 31m

C$ 421

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Wed 25/2

2:57 p.m.-12:36 a.m.

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Thu 5/3

2:05 a.m.-9:36 a.m.

1 stop8h 31m

C$ 425

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Sun 1/3

2:57 p.m.-12:36 a.m.

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Tue 3/3

2:05 a.m.-9:36 a.m.

1 stop8h 31m

C$ 427

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Tue 3/3

2:57 p.m.-12:36 a.m.

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Tue 10/3

7:05 a.m.-2:14 p.m.

1 stop7h 09m

C$ 445

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Tue 14/4

12:45 p.m.-9:24 p.m.

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Mon 20/4

1:00 a.m.-9:19 a.m.

1 stop8h 19m

C$ 451

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Sun 1/3

12:31 p.m.-11:40 p.m.

1 stop10h 09m

San Juan Luis Munoz Marin Intl

Wed 4/3

10:50 a.m.-7:04 p.m.

2 stops9h 14m

C$ 511

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Sun 22/2

9:05 a.m.-2:40 p.m.

Nonstop4h 35m

San Juan Luis Munoz Marin Intl

Wed 25/2

2:05 a.m.-12:47 p.m.

1 stop11h 42m

C$ 522

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Thu 23/4

11:00 a.m.-8:34 p.m.

1 stop9h 34m

San Juan Luis Munoz Marin Intl

Fri 1/5

1:00 a.m.-9:19 a.m.

1 stop8h 19m

C$ 522

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Tue 7/4

6:10 a.m.-3:42 p.m.

1 stop9h 32m

San Juan Luis Munoz Marin Intl

Thu 9/4

1:00 a.m.-9:19 a.m.

1 stop8h 19m

C$ 522

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Thu 28/5

12:45 p.m.-9:24 p.m.

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Sun 31/5

1:00 a.m.-8:44 a.m.

1 stop7h 44m

C$ 532

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 20 results
1
2

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

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

How far ahead should I book a flight from Niagara Falls to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to San Juan. Price data was last updated on 30 January 2026.

The price you pay for your flight from Niagara Falls to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 13 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, April is the cheapest month in which you can book a flight from Niagara Falls to San Juan (average of C$ 325). Flying from Niagara Falls to San Juan in July is currently the most expensive (average of C$ 672). 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 NI4 to SJU?

Find hourly flight availability from Niagara Falls to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 February 2026.

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

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

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated 5 February 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Niagara Falls to San Juan. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,151 reviews
Check prices

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,151 reviews
Delta
7.9
Good
8,151 reviews
Check prices

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
9,240 reviews
Delta
7.9
Good
8,151 reviews
Check prices

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
11,237 reviews
Delta
7.9
Good
8,151 reviews
Check prices

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
3,255 reviews
Delta
7.9
Good
8,151 reviews
Check prices

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.1
Good
10,694 reviews
Delta
7.9
Good
8,151 reviews
Check prices

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Niagara Falls to San Juan. 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 Niagara Falls to San Juan?

    United Airlines can get you from Niagara Falls to San Juan in just under 8h 39m. Your travel time can differ by up to . The distance between Niagara Falls and San Juan is about 3080 km.

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

    The cheapest airline one-way is Arajet, with whom users have recently found tickets for as low as C$ 165. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Niagara Falls to San Juan for a low price.

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

    Consider WestJet (71%), Air Canada (53%) or Air Canada Rouge (53%) when booking your flight. These represent the most reliable airlines when flying from Niagara Falls to San Juan.

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

    The cheapest flight price from Niagara Falls to San Juan is C$ 318. On average you can expect to pay C$ 895. The most popular route, (Toronto Pearson Intl - San Juan Luis Munoz Marin Intl), can usually be booked for C$ 347.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Niagara Falls to San Juan (average of C$ 325). Flying from Niagara Falls to San Juan in July is currently the most expensive (average of C$ 672). 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

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Top 5 airlines flying from Niagara Falls to San Juan

Discover the top 5 airlines that operate flights from Niagara Falls to San Juan. 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 629,999 searches. Data last updated 5 February 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 259AverageC$ 524FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 312AverageC$ 816FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 331AverageC$ 528FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 404AverageC$ 878FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 457AverageC$ 818FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Niagara Falls to San Juan?

Deals for Niagara Falls to San Juan flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Niagara Falls to San Juan?

Cheapflights simply makes it quick and affordable to book flights from Niagara Falls to San Juan by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Niagara Falls to San Juan with no change fees?

Yes, we can. To see specific flights from Niagara Falls to San Juan with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Niagara Falls to San Juan become cheaper?

Not ready to book yet? You can track prices for flights from Niagara Falls to San Juan on Cheapflights with our Price Alert feature and get notified when better prices are available.

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