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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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJU
22 Apr — 29 Apr1
1 adult

Cheapflights Tip: The best prices from Montreal to San Juan are usually found in January or April, booked 15 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap 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 17 April 2025.

Round-trip from

C$ 449

One-way from

C$ 223

Popular in

December

Cheapest in

January

Average price

C$ 599
American Airlines
  • American Airlines
  • 11/5-18/5
  • 2 total stops
  • 32h 03m total
  • Montreal to San Juan
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United Airlines
  • United Airlines
  • 11/5
  • 1 total stop
  • 7h 45m total
  • Montreal to San Juan
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 90 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 47 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Montreal to San Juan

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 17 April 2025.

Sun 16/118:05 a.m.YUL - SJU
1 stop15h 31mAir Canada
Sun 23/113:45 p.m.SJU - YUL
1 stop11h 08mAir Canada
Deal found 17/4C$ 435
Tue 18/112:25 p.m.YUL - SJU
2 stops10h 45mAmerican Airlines
Sun 7/126:40 a.m.SJU - YUL
1 stop17h 10mAmerican Airlines
Deal found 17/4C$ 448
Sat 19/411:15 a.m.YUL - SJU
1 stop10h 09mUnited Airlines
Sat 26/47:25 a.m.SJU - YUL
1 stop8h 25mUnited Airlines
Deal found 17/4C$ 459
Tue 2/97:00 a.m.YUL - SJU
1 stop15h 12mDelta
Fri 5/95:55 p.m.SJU - YUL
1 stop30h 02mDelta
Deal found 17/4C$ 516
Fri 9/56:45 a.m.YUL - SJU
3 stops28h 46mMultiple Airlines
Mon 12/58:12 p.m.SJU - YUL
2 stops28h 25mMultiple Airlines
Deal found 17/4C$ 564
Tue 12/87:00 a.m.YUL - SJU
1 stop15h 12mWestJet
Tue 19/82:39 p.m.SJU - YUL
1 stop9h 18mWestJet
Deal found 17/4C$ 670
Sun 28/128:00 a.m.YUL - SJU
Nonstop4h 30mAir Transat
Sun 11/12:35 p.m.SJU - YUL
Nonstop4h 35mAir Transat
Deal found 17/4C$ 898

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 17 April 2025.
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

Sun 11/5

7:47 a.m.-10:30 p.m.

1 stop14h 43m

San Juan Luis Munoz Marin Intl

Sun 18/5

5:25 a.m.-10:45 p.m.

1 stop17h 20m

C$ 449

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 27/4

6:15 a.m.-2:44 p.m.

1 stop8h 29m

San Juan Luis Munoz Marin Intl

Fri 2/5

7:25 a.m.-5:15 p.m.

1 stop9h 50m

C$ 498

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Tue 2/9

7:00 a.m.-10:12 p.m.

1 stop15h 12m

San Juan Luis Munoz Marin Intl

Fri 5/9

5:55 p.m.-11:57 p.m.

1 stop30h 02m

C$ 516

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 9/5

6:45 a.m.-11:31 a.m.

3 stops28h 46m

San Juan Luis Munoz Marin Intl

Mon 12/5

8:12 p.m.-12:37 a.m.

2 stops28h 25m

C$ 564

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 27/4

6:00 a.m.-11:57 p.m.

1 stop17h 57m

San Juan Luis Munoz Marin Intl

Fri 9/5

1:05 a.m.-1:09 p.m.

1 stop12h 04m

C$ 567

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Tue 12/8

7:00 a.m.-10:12 p.m.

1 stop15h 12m

San Juan Luis Munoz Marin Intl

Tue 19/8

2:39 p.m.-11:57 p.m.

1 stop9h 18m

C$ 670

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 11/5

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

1 stop7h 45m

C$ 223

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 11/5

7:47 a.m.-8:33 p.m.

2 stops12h 46m

C$ 243

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 11/5

10:45 a.m.-12:54 a.m.

3 stops14h 09m

C$ 363

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 29/8

6:00 a.m.-1:10 p.m.

1 stop7h 10m

C$ 384

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/4

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 11 April 2025.

To ensure you get the cheapest price possible for a flight from Montreal to San Juan, you should look to book at least 15 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, April is the cheapest month in which you can book a flight from Montreal to San Juan (average of C$ 254). Flying from Montreal 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 YMQ to SJU?

Find hourly flight availability from Montreal 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 17 April 2025.

One of the essential ways to save on airfare from Montreal to San Juan is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 24% on airfare.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 55.0 - 156.0 mm per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan when rainfall is around 55.0 mm.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

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 17 April 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines and WestJet from Montreal to San Juan by reading reviews from past customers. 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.
United Airlines
7.4
Good
8,667 reviews
Check prices

Boarding

7.7

Entertainment

7.0

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
United Airlines
7.4
Good
8,667 reviews
United Airlines
7.4
Good
8,667 reviews
Check prices

Boarding

7.7

Entertainment

7.0

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,667 reviews
Check prices

Boarding

7.7

Entertainment

7.0

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
WestJet
7.2
Good
2,809 reviews
United Airlines
7.4
Good
8,667 reviews
Check prices

Boarding

7.7

Entertainment

7.0

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
Air Canada
7.0
Good
9,143 reviews
United Airlines
7.4
Good
8,667 reviews
Check prices

Boarding

7.7

Entertainment

7.0

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
Avianca
6.7
Okay
2,316 reviews
United Airlines
7.4
Good
8,667 reviews
Check prices

Boarding

7.7

Entertainment

7.0

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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.

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

    Currently priced at C$ 449, American Airlines will fly you from Montreal to San Juan and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from C$ 496 and C$ 498, respectively. American Airlines is 38% 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 United Airlines (C$ 223), American Airlines (C$ 237), and Air Canada (C$ 309).

  • 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 (78%), Air Canada Rouge (78%) 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$ 636, our data shows the cheapest flight currently is C$ 446. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Juan Luis Munoz Marin Intl), you can expect to pay C$ 348 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, April is the cheapest month in which you can book a flight from Montreal to San Juan (average of C$ 254). Flying from Montreal 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Montreal to San Juan

Discover the top 7 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 17 April 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 293AverageC$ 575FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 295AverageC$ 778FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 424AverageC$ 616FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 435AverageC$ 523FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJet EncoreCheapestC$ 542AverageC$ 823FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
Air TransatCheapestC$ 570AverageC$ 908FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 651AverageC$ 795FlexibilityNo 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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