Find flights
Deals
When to book
Airlines
FAQs
English
Cheap flights from Ontario to San Juan from C$ 239
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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SJU
6 Aug — 13 Aug1
Round-trip
1 adult
Economy
Cheap 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 1 August 2025.
Find flight deals from Ontario to San Juan
Cheapest flights from Ontario to San JuanExplore 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 1 August 2025.
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 1 August 2025.
Thu 30/107:29 a.m.YUL - SJU
1 stop8h 26mAmerican Airlines
Sat 8/116:25 a.m.SJU - YUL
1 stop6h 50mAmerican Airlines
Deal found 30/7C$ 353
Wed 15/106:00 a.m.YUL - SJU
1 stop7h 45mUnited Airlines
Thu 23/101:30 p.m.SJU - YUL
1 stop8h 36mUnited Airlines
Deal found 31/7C$ 379
Sat 25/106:00 a.m.YUL - SJU
1 stop7h 45mMultiple Airlines
Sat 29/113:40 p.m.SJU - YUL
1 stop17h 08mMultiple Airlines
Deal found 30/7C$ 455
Sun 14/128:15 a.m.YUL - SJU
Nonstop4h 40mAir Canada
Sun 21/122:05 a.m.SJU - YUL
1 stop12h 26mAir Canada
Deal found 29/7C$ 501
Sun 14/96:30 a.m.YYZ - SJU
1 stop28h 34mMultiple Airlines
Sat 20/912:28 a.m.SJU - YYZ
2 stops13h 37mMultiple Airlines
Deal found 30/7C$ 502
Thu 23/107:35 a.m.YYZ - SJU
1 stop16h 24mAmerican Airlines
Mon 27/105:30 a.m.SJU - YYZ
1 stop11h 49mAmerican Airlines
Deal found 30/7C$ 505
Tue 28/106:52 a.m.YYZ - SJU
1 stop7h 48mAir Canada
Mon 3/112:05 a.m.SJU - YYZ
2 stops10h 35mAir Canada
Deal found 29/7C$ 507
Wed 19/1110:00 a.m.YYZ - SJU
1 stop11h 22mUnited Airlines
Fri 28/118:30 a.m.SJU - YYZ
1 stop11h 27mUnited Airlines
Deal found 29/7C$ 514
Sun 31/87:00 a.m.YUL - SJU
1 stop15h 07mDelta
Fri 5/92:20 p.m.SJU - YUL
1 stop8h 48mDelta
Deal found 31/7C$ 528
Sun 26/106:00 a.m.YOW - SJU
1 stop7h 40mUnited Airlines
Sun 2/118:10 a.m.SJU - YOW
1 stop10h 02mUnited Airlines
Deal found 1/8C$ 575
Tue 16/97:30 p.m.YTZ - SJU
1 stop30h 28mMultiple Airlines
Sat 20/94:51 p.m.SJU - YTZ
1 stop17h 44mMultiple Airlines
Deal found 1/8C$ 596
Sun 26/108:05 p.m.YOW - SJU
2 stops17h 35mAir Canada
Sat 1/112:05 a.m.SJU - YOW
2 stops11h 17mAir Canada
Deal found 1/8C$ 644
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 1 August 2025.
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
Thu 30/10
7:29 a.m.-3:55 p.m.
1 stop8h 26m
San Juan Luis Munoz Marin Intl
Sat 8/11
6:25 a.m.-12:15 p.m.
1 stop6h 50m
C$ 353
MontrealSan Juan
YUL - SJU
YULSJU
Montreal Pierre Elliott Trudeau Intl
Wed 15/10
6:00 a.m.-1:45 p.m.
1 stop7h 45m
San Juan Luis Munoz Marin Intl
Thu 23/10
1:30 p.m.-10:06 p.m.
1 stop8h 36m
C$ 379
MontrealSan Juan
YUL - SJU
YULSJU
Montreal Pierre Elliott Trudeau Intl
Sat 25/10
6:00 a.m.-1:45 p.m.
1 stop7h 45m
San Juan Luis Munoz Marin Intl
Sat 29/11
3:40 p.m.-7:48 a.m.
1 stop17h 08m
C$ 455
TorontoSan Juan
YYZ - SJU
YYZSJU
Toronto Pearson Intl
Sun 14/9
6:30 a.m.-11:04 a.m.
1 stop28h 34m
San Juan Luis Munoz Marin Intl
Sat 20/9
12:28 a.m.-2:05 p.m.
2 stops13h 37m
C$ 502
TorontoSan Juan
YYZ - SJU
YYZSJU
Toronto Pearson Intl
Thu 23/10
7:35 a.m.-11:59 p.m.
1 stop16h 24m
San Juan Luis Munoz Marin Intl
Mon 27/10
5:30 a.m.-5:19 p.m.
1 stop11h 49m
C$ 505
TorontoSan Juan
YYZ - SJU
YYZSJU
Toronto Pearson Intl
Tue 28/10
6:52 a.m.-2:40 p.m.
1 stop7h 48m
San Juan Luis Munoz Marin Intl
Mon 3/11
2:05 a.m.-11:40 a.m.
2 stops10h 35m
C$ 507
TorontoSan Juan
YYZ - SJU
YYZSJU
Toronto Pearson Intl
Sun 31/8
7:00 a.m.-2:44 p.m.
1 stop7h 44m
San Juan Luis Munoz Marin Intl
Fri 5/9
3:56 p.m.-11:58 p.m.
1 stop8h 02m
C$ 520
MontrealSan Juan
YUL - SJU
YULSJU
Montreal Pierre Elliott Trudeau Intl
Sun 31/8
7:00 a.m.-10:07 p.m.
1 stop15h 07m
San Juan Luis Munoz Marin Intl
Fri 5/9
2:20 p.m.-11:08 p.m.
1 stop8h 48m
C$ 528
MontrealSan Juan
YUL - SJU
YULSJU
Montreal Pierre Elliott Trudeau Intl
Thu 30/10
6:55 p.m.-11:36 p.m.
1 stop28h 41m
San Juan Luis Munoz Marin Intl
Fri 7/11
2:05 a.m.-11:57 a.m.
1 stop10h 52m
C$ 554
OttawaSan Juan
YOW - SJU
YOWSJU
Ottawa
Sun 26/10
6:00 a.m.-1:40 p.m.
1 stop7h 40m
San Juan Luis Munoz Marin Intl
Sun 2/11
8:10 a.m.-5:12 p.m.
1 stop10h 02m
C$ 575
Showing 1-10 of 32 results
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$ 254). Flying from Region of Ontario to San Juan in July is currently the most expensive (average of C$ 580). 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 1 August 2025.
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.
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 1 August 2025.
Get a feel of what it's like to fly with Caribbean Airlines,Delta, andAir Transat from Ontario to San Juan by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.8
Entertainment
6.7
Crew
8.4
Overall
8.1
Boarding
8.1
Comfort
7.9
Reviews
1 / 10
6.0
GoodAnonymous,Jul 2025
GEO - POS
Food
6.8
Entertainment
6.7
Crew
8.4
Overall
8.1
Boarding
8.1
Comfort
7.9
Reviews
1 / 10
6.0
GoodAnonymous,Jul 2025
GEO - POS
Food
6.8
Entertainment
6.7
Crew
8.4
Overall
8.1
Boarding
8.1
Comfort
7.9
Reviews
1 / 10
6.0
GoodAnonymous,Jul 2025
GEO - POS
Food
6.8
Entertainment
6.7
Crew
8.4
Overall
8.1
Boarding
8.1
Comfort
7.9
Reviews
1 / 10
6.0
GoodAnonymous,Jul 2025
GEO - POS
Food
6.8
Entertainment
6.7
Crew
8.4
Overall
8.1
Boarding
8.1
Comfort
7.9
Reviews
1 / 10
6.0
GoodAnonymous,Jul 2025
GEO - POS
Food
6.8
Entertainment
6.7
Crew
8.4
Overall
8.1
Boarding
8.1
Comfort
7.9
Reviews
1 / 10
6.0
GoodAnonymous,Jul 2025
GEO - POS
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.
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 Ontario to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
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 1 August 2025.
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.