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Cheap flights from Montreal to San Juan from C$ 245

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 16/8. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJU
8 jul. — 15 jul.1
1 adult

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 3 julio 2025.

Round-trip from

C$ 387

One-way from

C$ 245

Popular in

December

Cheapest in

January

Average price

C$ 804
United Airlines
  • United Airlines
  • 17/10-24/10
  • 2 total stops
  • 16h 52m total
  • Montreal to San Juan
Arajet
  • Arajet
  • 16/8
  • 1 total stop
  • 7h 28m total
  • Montreal to San Juan
Highest demand for flights based on searches. 8% potential increase in price (C$ 93 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease (C$ 44 potential savings vs. average RT price).
Average for round-trip flights in July 2025

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 3 julio 2025.

vie. 17/103:41 p.m.YUL - SJU
1 stop8h 16mUnited Airlines
mié. 22/101:30 p.m.SJU - YUL
1 stop8h 36mUnited Airlines
Deal found 3/7C$ 387
mar. 28/107:50 a.m.YUL - SJU
1 stop16h 15mAmerican Airlines
mié. 5/116:25 p.m.SJU - YUL
2 stops17h 45mAmerican Airlines
Deal found 2/7C$ 388
dom. 14/128:15 a.m.YUL - SJU
Nonstop4h 40mAir Canada
sáb. 20/123:40 p.m.SJU - YUL
1 stop17h 08mAir Canada
Deal found 1/7C$ 492
dom. 26/106:35 p.m.YUL - SJU
1 stop7h 28mMultiple Airlines
dom. 2/113:54 p.m.SJU - YUL
1 stop8h 51mMultiple Airlines
Deal found 2/7C$ 503
mar. 2/127:00 a.m.YUL - SJU
1 stop9h 15mDelta
jue. 11/126:20 p.m.SJU - YUL
1 stop18h 24mDelta
Deal found 2/7C$ 517

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 3 julio 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

vie. 17/10

3:41 p.m.-11:57 p.m.

1 stop8h 16m

San Juan Luis Munoz Marin Intl

mié. 22/10

1:30 p.m.-10:06 p.m.

1 stop8h 36m

C$ 387

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

mar. 28/10

7:50 a.m.-12:05 a.m.

1 stop16h 15m

San Juan Luis Munoz Marin Intl

mié. 5/11

6:25 p.m.-11:10 a.m.

2 stops17h 45m

C$ 388

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

dom. 14/12

8:15 a.m.-1:55 p.m.

Nonstop4h 40m

San Juan Luis Munoz Marin Intl

sáb. 20/12

3:40 p.m.-7:48 a.m.

1 stop17h 08m

C$ 492

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

dom. 26/10

6:35 p.m.-2:03 a.m.

1 stop7h 28m

San Juan Luis Munoz Marin Intl

dom. 2/11

3:54 p.m.-11:45 p.m.

1 stop8h 51m

C$ 503

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

mar. 2/12

7:00 a.m.-5:15 p.m.

1 stop9h 15m

San Juan Luis Munoz Marin Intl

jue. 11/12

6:20 p.m.-11:44 a.m.

1 stop18h 24m

C$ 517

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

sáb. 16/8

11:40 a.m.-7:08 p.m.

1 stop7h 28m

C$ 245

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

vie. 29/8

7:50 a.m.-10:49 p.m.

1 stop14h 59m

C$ 281

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

vie. 15/8

6:55 p.m.-1:30 p.m.

1 stop18h 35m

C$ 308

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

dom. 3/8

7:00 a.m.-2:08 a.m.

2 stops19h 08m

C$ 316

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

dom. 14/12

8:15 a.m.-1:55 p.m.

Nonstop4h 40m

C$ 319

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

Showing 1-10 of 12 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 27 June 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 3 julio 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.

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

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 3 julio 2025.
Check out reviews from past customers who have flown with Delta,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.

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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$ 387, United Airlines will fly you from Montreal to San Juan and back. In addition to United Airlines, 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$ 388 and C$ 492, respectively. United Airlines is 46% 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 Arajet (C$ 245), American Airlines (C$ 281), and Delta (C$ 308).

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

    While on average a flight from Montreal to San Juan is generally C$ 1,102, our data shows the cheapest flight currently is C$ 814. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Juan Luis Munoz Marin Intl), you can expect to pay C$ 387 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 3 julio 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 305AverageC$ 566FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 384AverageC$ 686FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 417AverageC$ 627FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 427AverageC$ 510FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air TransatCheapestC$ 560AverageC$ 824FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 639AverageC$ 776FlexibilityNo cancel feeOn-time60%
Search WestJet flights
WestJet EncoreCheapestC$ 753AverageC$ 940FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore 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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