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Cheap flights from Montreal to San Juan from C$ 298

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJU
22 Jun — 29 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to San Juan are usually found in October or September, booked 49 days in advance, depart on a Tuesday or Monday and return on a Monday

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 23 May 2026.

Tue 20/106:00 a.m.
YUL
-
SJU
1 stop7h 45m
United Airlines
Thu 29/107:30 a.m.
SJU
-
YUL
1 stop7h 32m
United Airlines
Deal found 21/5C$ 408
Wed 14/107:00 a.m.
YUL
-
SJU
1 stop7h 34m
Arajet
Sun 1/114:00 p.m.
SJU
-
YUL
1 stop9h 15m
Arajet
Deal found 20/5C$ 437
Wed 9/97:00 a.m.
YUL
-
SJU
1 stop7h 34m
Arajet
Sun 13/94:00 p.m.
SJU
-
YUL
1 stop8h 20m
Arajet
Deal found 22/5C$ 439
Wed 19/87:00 a.m.
YUL
-
SJU
1 stop7h 34m
Arajet
Sun 6/94:00 p.m.
SJU
-
YUL
1 stop8h 20m
Arajet
Deal found 23/5C$ 440
Tue 20/103:25 p.m.
YUL
-
SJU
1 stop8h 25m
United Airlines
Tue 3/118:30 a.m.
SJU
-
YUL
1 stop7h 32m
United Airlines
Deal found 20/5C$ 447
Sat 31/1010:10 p.m.
YUL
-
SJU
1 stop16h 15m
Air Canada
Sat 7/113:20 p.m.
SJU
-
YUL
1 stop10h 13m
Air Canada
Deal found 19/5C$ 472
Fri 4/96:00 a.m.
YUL
-
SJU
1 stop7h 45m
United Airlines
Tue 15/91:25 p.m.
SJU
-
YUL
1 stop8h 41m
United Airlines
Deal found 22/5C$ 487
Tue 20/103:25 p.m.
YUL
-
SJU
1 stop8h 25m
United Airlines
Fri 30/107:30 a.m.
SJU
-
YUL
1 stop7h 32m
United Airlines
Deal found 20/5C$ 489
Fri 21/87:00 a.m.
YUL
-
SJU
1 stop9h 20m
Arajet
Sun 6/94:00 p.m.
SJU
-
YUL
1 stop8h 20m
Arajet
Deal found 23/5C$ 493
Fri 16/107:00 a.m.
YUL
-
SJU
1 stop9h 20m
Arajet
Sun 25/104:00 p.m.
SJU
-
YUL
1 stop8h 20m
Arajet
Deal found 22/5C$ 506
Fri 16/107:00 a.m.
YUL
-
SJU
1 stop9h 20m
Arajet
Tue 20/104:30 p.m.
SJU
-
YUL
1 stop7h 50m
Arajet
Deal found 18/5C$ 513

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 23 May 2026.

Round-trip from

C$ 408

One-way from

C$ 298

Popular in

December

Cheapest in

October

Average price

C$ 660
United Airlines
  • United Airlines
  • 20/10-29/10
  • 2 total stops
  • 15h 17m total
  • Montreal to San Juan
Search Deals
Arajet
  • Arajet
  • 5/6
  • 1 total stop
  • 9h 20m total
  • Montreal to San Juan
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 23 May 2026.
Use the filters below to find and compare flights from Montreal to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Tue 10/11

2:20 p.m.-10:22 p.m.

1 stop7h 02m

San Juan Luis Munoz Marin Intl

Wed 18/11

8:30 a.m.-3:02 p.m.

1 stop7h 32m

C$ 489

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 16/10

6:00 a.m.-1:45 p.m.

1 stop7h 45m

San Juan Luis Munoz Marin Intl

Thu 29/10

7:30 a.m.-3:02 p.m.

1 stop7h 32m

C$ 553

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Thu 17/9

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

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Mon 28/9

3:56 p.m.-10:40 a.m.

1 stop18h 44m

C$ 636

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sat 19/9

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

1 stop8h 34m

San Juan Luis Munoz Marin Intl

Mon 28/9

3:56 p.m.-10:40 a.m.

1 stop18h 44m

C$ 636

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Wed 3/6

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

1 stop7h 04m

San Juan Luis Munoz Marin Intl

Sat 6/6

1:25 p.m.-10:06 p.m.

1 stop8h 41m

C$ 653

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Tue 2/6

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

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Sat 13/6

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

1 stop7h 18m

C$ 673

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 5/6

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

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Thu 18/6

1:00 a.m.-10:06 p.m.

1 stop21h 06m

C$ 693

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 16/10

6:00 a.m.-1:45 p.m.

1 stop7h 45m

San Juan Luis Munoz Marin Intl

Fri 23/10

1:25 p.m.-10:06 p.m.

1 stop8h 41m

C$ 697
Quickest round-trip

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

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

1 stop7h 04m

San Juan Luis Munoz Marin Intl

Mon 8/6

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

1 stop7h 18m

C$ 698

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 20/9

6:00 a.m.-1:45 p.m.

1 stop7h 45m

San Juan Luis Munoz Marin Intl

Mon 28/9

3:56 p.m.-10:40 a.m.

1 stop18h 44m

C$ 716

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/5

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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

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

Currently, May is the cheapest month in which you can book a flight from Montreal to San Juan (average of C$ 163). Flying from Montreal to San Juan in June is currently the most expensive (average of C$ 453). 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 6% of weekly flights between Montreal and San Juan have experienced delays in the past year, with the average delay time being 151 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 9% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Montreal to San Juan, you should look to book at least 71 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.

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 23 May 2026.
Check out reviews from past customers who have flown with Air Transat,United Airlines, andWestJet 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
7.8
Good
553 reviews
Check prices

Crew

8.5

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Overall

7.8

Food

6.8

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
7.8
Good
553 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Crew

8.5

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Overall

7.8

Food

6.8

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
9,751 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Crew

8.5

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Overall

7.8

Food

6.8

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
3,345 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Crew

8.5

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Overall

7.8

Food

6.8

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
7.1
Good
11,642 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Crew

8.5

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Overall

7.8

Food

6.8

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
11,077 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Crew

8.5

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Overall

7.8

Food

6.8

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 7h 02m. Fly via United Airlines to get the fastest option. Montreal and San Juan are separated by a distance of 3087 km.

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

    Currently priced at C$ 285, 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$ 292 and C$ 324, respectively. Arajet is 59% 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 American Airlines (C$ 231), United Airlines (C$ 240), and Air Canada (C$ 247).

  • 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 Air Canada (100%), Air Canada Rouge (100%) and Air Transat (67%).

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

    While on average a flight from Montreal to San Juan is generally C$ 401, our data shows the cheapest flight currently is C$ 277. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Juan Luis Munoz Marin Intl), you can expect to pay C$ 408 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, May is the cheapest month in which you can book a flight from Montreal to San Juan (average of C$ 163). Flying from Montreal to San Juan in June is currently the most expensive (average of C$ 453). 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 23 May 2026.
AirlineCheapestAverageFlexibilityOn-time
ArajetCheapestC$ 285AverageC$ 374FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
American AirlinesCheapestC$ 292AverageC$ 580FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 324AverageC$ 663FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 362AverageC$ 531FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 473AverageC$ 865FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 710AverageC$ 911FlexibilityNo 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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