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Cheap flights from Montreal to San Juan from C$ 223

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJU
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to San Juan

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to San Juan
Explore the most affordable flight options available from Montreal to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 January 2026.

Wed 15/46:45 a.m.
YUL
-
SJU
1 stop7h 49m
Arajet
Sun 19/44:00 p.m.
SJU
-
YUL
1 stop8h 20m
Arajet
Deal found 27/1C$ 400
Sun 12/49:00 a.m.
YUL
-
SJU
Nonstop4h 20m
Multiple Airlines
Sun 19/44:00 p.m.
SJU
-
YUL
1 stop8h 20m
Multiple Airlines
Deal found 27/1C$ 410
Fri 8/59:45 a.m.
YUL
-
SJU
1 stop10h 49m
United Airlines
Sat 16/57:20 a.m.
SJU
-
YUL
1 stop7h 20m
United Airlines
Deal found 27/1C$ 411
Sun 12/49:15 a.m.
YUL
-
SJU
1 stop12h 09m
Air Canada
Tue 21/41:00 a.m.
SJU
-
YUL
1 stop12h 09m
Air Canada
Deal found 28/1C$ 414
Tue 14/47:45 a.m.
YUL
-
SJU
1 stop14h 20m
American Airlines
Tue 28/46:00 a.m.
SJU
-
YUL
1 stop15h 37m
American Airlines
Deal found 27/1C$ 426
Sat 31/12:13 p.m.
YUL
-
SJU
1 stop7h 09m
United Airlines
Fri 6/28:10 a.m.
SJU
-
YUL
1 stop8h 06m
United Airlines
Deal found 27/1C$ 428
Sat 31/112:59 p.m.
YUL
-
SJU
1 stop9h 57m
American Airlines
Thu 5/21:58 p.m.
SJU
-
YUL
1 stop9h 46m
American Airlines
Deal found 27/1C$ 430
Sun 8/27:00 a.m.
YUL
-
SJU
1 stop9h 01m
American Airlines
Wed 18/28:00 a.m.
SJU
-
YUL
2 stops15h 56m
American Airlines
Deal found 27/1C$ 432
Fri 30/17:30 a.m.
YUL
-
SJU
2 stops15h 29m
American Airlines
Thu 5/23:49 p.m.
SJU
-
YUL
1 stop7h 55m
American Airlines
Deal found 26/1C$ 434
Fri 30/17:30 a.m.
YUL
-
SJU
2 stops15h 29m
American Airlines
Wed 4/26:00 a.m.
SJU
-
YUL
2 stops10h 20m
American Airlines
Deal found 26/1C$ 437

Find flight deals from Montreal to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 January 2026.

Round-trip from

C$ 400

One-way from

C$ 223

Popular in

December

Cheapest in

October

Average price

C$ 637
Arajet
  • Arajet
  • 15/4-19/4
  • 2 total stops
  • 16h 09m total
  • Montreal to San Juan
Search Deals
United Airlines
  • United Airlines
  • 11/3
  • 1 total stop
  • 7h 09m total
  • Montreal to San Juan
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal 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 29 January 2026.
Use the filters below to find and compare flights from Montreal to San Juan that are best for you.

Fly from

Montreal

Fly to

San Juan

Route

Depart

Return

Price

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

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

1 stop10h 49m

San Juan Luis Munoz Marin Intl

Sat 16/5

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

1 stop7h 20m

C$ 411

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 12/4

9:15 a.m.-9:24 p.m.

1 stop12h 09m

San Juan Luis Munoz Marin Intl

Tue 21/4

1:00 a.m.-1:09 p.m.

1 stop12h 09m

C$ 414

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

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

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Thu 16/4

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

1 stop7h 20m

C$ 448

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 8/2

6:00 a.m.-3:40 p.m.

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Sat 14/2

8:05 a.m.-3:16 p.m.

1 stop8h 11m

C$ 478

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sat 25/4

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

1 stop7h 04m

San Juan Luis Munoz Marin Intl

Sat 2/5

7:40 a.m.-5:30 p.m.

1 stop9h 50m

C$ 519

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

8:00 a.m.-8:55 p.m.

1 stop12h 55m

San Juan Luis Munoz Marin Intl

Thu 12/3

5:19 a.m.-4:20 p.m.

1 stop11h 01m

C$ 524

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 17/4

5:25 p.m.-8:47 a.m.

2 stops15h 22m

San Juan Luis Munoz Marin Intl

Sun 26/4

4:00 p.m.-12:20 a.m.

1 stop8h 20m

C$ 535

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 15/3

8:00 a.m.-6:54 p.m.

1 stop10h 54m

San Juan Luis Munoz Marin Intl

Sun 22/3

4:06 p.m.-12:15 a.m.

1 stop8h 09m

C$ 540

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

7:30 a.m.-5:11 p.m.

2 stops9h 41m

San Juan Luis Munoz Marin Intl

Thu 12/3

7:40 a.m.-10:44 p.m.

1 stop15h 04m

C$ 546

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Mon 23/2

11:10 a.m.-12:36 a.m.

2 stops12h 26m

San Juan Luis Munoz Marin Intl

Tue 24/2

2:05 a.m.-1:22 p.m.

2 stops12h 17m

C$ 548

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/1

Showing 1-10 of 20 results
1
2

Best time to book a flight from Montreal to San Juan

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

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

Use this chart to determine the optimal time to book a round-trip flight from Montreal to San Juan. Price data was last updated on 23 January 2026.

To ensure you get the cheapest price possible for a flight from Montreal to San Juan, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from Montreal to San Juan (average of C$ 240). Flying from Montreal to San Juan in June is currently the most expensive (average of C$ 665). 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.

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

How often are flights from Montreal to San Juan delayed?

About 19% of weekly flights between Montreal and San Juan have experienced delays in the past year, with the average delay time being 43 minutes.

What is the most punctual flight time for Montreal to San Juan flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Montreal to San Juan flights?

Over the past year, Air Canada Rouge has had the lowest number of delays on this route, with just 37% of flights being delayed.

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 29 January 2026.
Check out reviews from past customers who have flown with Air Transat,United Airlines, andAmerican Airlines from Montreal to San Juan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.7
Good
501 reviews
Check prices

Overall

7.7

Food

6.8

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.7
Good
501 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Overall

7.7

Food

6.8

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
United Airlines
7.4
Good
9,215 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Overall

7.7

Food

6.8

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
American Airlines
7.2
Good
11,206 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Overall

7.7

Food

6.8

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
WestJet
7.2
Good
3,253 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Overall

7.7

Food

6.8

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
10,667 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Overall

7.7

Food

6.8

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

Related info for your journey

Find useful and relevant information for your journey from Montreal 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 Montreal to San Juan?

    There are many flights that can get you from Montreal to San Juan in 10h 49m. Fly via United Airlines or Air Canada to get the fastest option. Montreal and San Juan are separated by a distance of 3087 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Montreal to San Juan round-trip?

    Currently priced at C$ 216, Arajet will fly you from Montreal to San Juan and back. In addition to Arajet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Air Canada - these airlines can fly you to your destination from C$ 287 and C$ 319, respectively. Arajet is 69% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from Montreal to San Juan are Air Transat (C$ 221), United Airlines (C$ 222), and American Airlines (C$ 227).

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

    The top 3 most reliable airlines when flying from Montreal to San Juan are Porter Airlines (100%), Air Transat (100%) and Air Canada (60%).

  • What are the cheapest flights from Montreal to San Juan?

    While on average a flight from Montreal to San Juan is generally C$ 689, our data shows the cheapest flight currently is C$ 525. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Juan Luis Munoz Marin Intl), you can expect to pay C$ 369 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montreal 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 Montreal to San Juan?

    Currently, October is the cheapest month in which you can book a flight from Montreal to San Juan (average of C$ 240). Flying from Montreal to San Juan in June is currently the most expensive (average of C$ 665). 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 6 airlines flying from Montreal to San Juan

Discover the top 6 airlines that operate flights from Montreal 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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
ArajetCheapestC$ 216AverageC$ 332FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
American AirlinesCheapestC$ 287AverageC$ 586FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 319AverageC$ 634FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 356AverageC$ 542FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 465AverageC$ 843FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 635AverageC$ 786FlexibilityNo 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 Montreal to San Juan?

Deals for Montreal 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 Montreal to San Juan?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Montreal to San Juan.

Can Cheapflights find flights from Montreal 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 Montreal 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 Montreal to San Juan become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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