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Cheap flights from Ontario 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
6 Mar — 13 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to San Juan

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to San Juan
Explore the most affordable flight options available from Ontario to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 February 2026.

Wed 22/43:25 p.m.
YUL
-
SJU
1 stop8h 25m
United Airlines
Thu 30/44:55 p.m.
SJU
-
YUL
1 stop7h 18m
United Airlines
Deal found 4/2C$ 399
Sun 12/47:00 a.m.
YUL
-
SJU
2 stops13h 34m
Multiple Airlines
Sun 19/44:00 p.m.
SJU
-
YUL
1 stop8h 20m
Multiple Airlines
Deal found 2/2C$ 406
Mon 4/53:25 p.m.
YUL
-
SJU
1 stop8h 25m
United Airlines
Tue 5/57:20 a.m.
SJU
-
YUL
1 stop7h 20m
United Airlines
Deal found 3/2C$ 407
Tue 3/23:00 p.m.
YUL
-
SJU
1 stop8h 36m
United Airlines
Tue 10/28:10 a.m.
SJU
-
YUL
1 stop8h 06m
United Airlines
Deal found 2/2C$ 408
Tue 5/56:00 a.m.
YUL
-
SJU
1 stop7h 45m
United Airlines
Wed 13/57:20 a.m.
SJU
-
YUL
1 stop7h 20m
United Airlines
Deal found 4/2C$ 414
Sat 7/22:13 p.m.
YUL
-
SJU
1 stop7h 09m
United Airlines
Tue 10/28:10 a.m.
SJU
-
YUL
1 stop8h 06m
United Airlines
Deal found 2/2C$ 419
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
Sat 25/47:45 a.m.
YUL
-
SJU
1 stop14h 20m
American Airlines
Sat 2/56:00 a.m.
SJU
-
YUL
1 stop9h 27m
American Airlines
Deal found 3/2C$ 426
Sat 25/48:00 a.m.
YUL
-
SJU
1 stop28h 33m
Multiple Airlines
Sun 3/54:00 p.m.
SJU
-
YUL
1 stop8h 20m
Multiple Airlines
Deal found 3/2C$ 427
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
Sun 22/27:30 a.m.
YUL
-
SJU
1 stop15h 10m
American Airlines
Fri 27/26:00 a.m.
SJU
-
YUL
1 stop10h 22m
American Airlines
Deal found 3/2C$ 429

Find flight deals from Ontario to San Juan

Keep the following information in mind while searching for Ontario to San Juan flight deals. Data was last updated 4 February 2026.

Round-trip from

C$ 399

One-way from

C$ 182

Popular in

August

Cheapest in

September

Average price

C$ 638
United Airlines
  • United Airlines
  • 22/4-30/4
  • 2 total stops
  • 15h 43m total
  • Ontario to San Juan
Search Deals
Air Canada
  • Air Canada
  • 19/4
  • Nonstop
  • 4h 25m total
  • Ontario to San Juan
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 20 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 Ontario 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 4 February 2026.
Use the filters below to find and compare flights from Ontario to San Juan that are best for you.

Fly from

Ontario

Fly to

San Juan

Route

Depart

Return

Price

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:10 a.m.-2:44 p.m.

1 stop8h 34m

San Juan Luis Munoz Marin Intl

Wed 13/5

7:20 a.m.-2:40 p.m.

1 stop7h 20m

C$ 414

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

3:25 p.m.-11:50 p.m.

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Fri 15/5

4:55 p.m.-12:13 a.m.

1 stop7h 18m

C$ 414

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Wed 13/5

9:45 a.m.-8:34 p.m.

1 stop10h 49m

San Juan Luis Munoz Marin Intl

Thu 14/5

4:55 p.m.-12:13 a.m.

1 stop7h 18m

C$ 414

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Mon 11/5

3:25 p.m.-11:50 p.m.

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Wed 13/5

7:20 a.m.-2:40 p.m.

1 stop7h 20m

C$ 414

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

3:25 p.m.-11:50 p.m.

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Thu 14/5

4:55 p.m.-12:13 a.m.

1 stop7h 18m

C$ 414

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

3:25 p.m.-11:50 p.m.

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Fri 15/5

4:55 p.m.-12:13 a.m.

1 stop7h 18m

C$ 414

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

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

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Tue 21/4

2:20 p.m.-9:24 p.m.

1 stop7h 04m

San Juan Luis Munoz Marin Intl

Fri 15/5

4:55 p.m.-12:13 a.m.

1 stop7h 18m

C$ 430

TorontoSan Juan

YYZ - SJU

YYZSJU

Toronto Pearson Intl

Sun 24/5

3:00 p.m.-11:50 p.m.

1 stop8h 50m

San Juan Luis Munoz Marin Intl

Sat 30/5

1:25 p.m.-10:29 p.m.

1 stop9h 04m

C$ 434

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to San Juan

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

What is the cheapest month to book a flight from Region of Ontario to San Juan?

Currently, April is the cheapest month in which you can book a flight from Region of Ontario to San Juan (average of C$ 325). Flying from Region of Ontario 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 ON to SJU?

Find hourly flight availability from Ontario 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 4 February 2026.

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

How much does it cost to fly round-trip from Region of Ontario to San Juan?

Related info for your journey

Find useful and relevant information for your journey from Ontario 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 Region of Ontario to San Juan?

    There are many flights that can get you from Region of Ontario to San Juan in 8h 34m. Fly via United Airlines or Air Canada to get the fastest option. There are 3087 km between Region of Ontario and San Juan. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Region of Ontario 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 WestJet and Air Canada, as they are both options that can get you from Region of Ontario to San Juan for a low price.

  • What are the most popular routes from Region of Ontario to San Juan?

    Most travellers choose Montreal Pierre Elliott Trudeau Intl - San Juan Luis Munoz Marin Intl, Toronto Pearson Intl - San Juan Luis Munoz Marin Intl or Toronto Island - San Juan Luis Munoz Marin Intl when deciding on the best route from Region of Ontario to San Juan.

  • What are the most reliable airlines from Region of Ontario to San Juan?

    No one likes to see their flight delayed. When booking a flight from Region of Ontario to San Juan consider choosing WestJet (71%), Air Canada (53%) or Air Canada Rouge (53%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Region of Ontario to San Juan?

    Looking at all options, your cheapest flight can be booked for C$ 318. While the most popular route (Montreal Pierre Elliott Trudeau Intl - San Juan Luis Munoz Marin Intl) can be booked for C$ 347 on average, our data indicates C$ 895 when flying from Region of Ontario to San Juan.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario 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 Region of Ontario to San Juan?

    Currently, April is the cheapest month in which you can book a flight from Region of Ontario to San Juan (average of C$ 325). Flying from Region of Ontario 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 Ontario to San Juan

Discover the top 5 airlines that operate flights from Ontario 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 4 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$ 654FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 404AverageC$ 1,002FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 457AverageC$ 819FlexibilityNo 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 Ontario to San Juan?

Cheapflights helps you search for flights from Ontario to San Juan via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to San Juan for you. Better yet — we are completely free to use.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to San Juan, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Ontario to San Juan flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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