How often are flights from Montreal to San Juan delayed?

Historically, on average around 22% of flights between Montreal and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 96 minutes.

Which airlines fly to San Juan?

WestJet, United Airlines and Air Canada are the top three most popular airlines that fly to San Juan from Montreal according to our data. WestJet is the first choice among our users, with 37% of people opting to fly with this airline when travelling to San Juan. Keep in mind that there are 6 different airlines that fly to San Juan on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Montreal to San Juan?

American Airlines is the most popular carrier operating from Montreal to San Juan

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

According to our data, Air Transat has had the least delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

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

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

How many flights depart from Montreal to San Juan on average per week?

As of December 2025, 1 flights take off from Montreal and land in San Juan each week. The most common flight departure day for this route is Sun, with 100% of weekly flights taking off on this day.

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

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from Montreal to San Juan?

Prices for flights from Montreal to San Juan are updated daily.

How many operators does momondo search for flights from Montreal to San Juan?

There are 6 operators available for flights from Montreal to San Juan as of December 2025.

How old do you have to be to fly from Montreal to San Juan?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Montreal to San Juan.

What documentation or ID do you need to fly to San Juan?

The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 209 Cheap Flights from Montreal to San Juan in 2025/26

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Montreal to San Juan

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 a.m. - 1:20 a.m.

YUL

SJU

16h 20m1 stop

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

SJU

YUL

9h 09m1 stop

C$ 409Multiple Airlines

Sun, 18 Jan - Sun, 25 Jan

6:45 a.m. - 2:34 p.m.

YUL

SJU

7h 49m1 stop

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

SJU

YUL

8h 20m1 stop

C$ 431Arajet

Wed, 1 Apr - Sun, 5 Apr

8:00 a.m. - 9:44 p.m.

YUL

SJU

13h 44m1 stop

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

SJU

YUL

8h 20m1 stop

C$ 453Multiple Airlines

Sat, 28 Mar - Sun, 5 Apr

4:25 p.m. - 11:03 p.m.

YUL

SJU

29h 38m1 stop

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

SJU

YUL

8h 09m1 stop

C$ 459Multiple Airlines

Fri, 6 Mar - Sun, 15 Mar

8:00 a.m. - 8:02 p.m.

YUL

SJU

11h 02m1 stop

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

SJU

YUL

9h 09m1 stop

C$ 463Multiple Airlines

Thu, 22 Jan - Sun, 8 Feb

8:00 a.m. - 3:35 p.m.

YUL

SJU

30h 35m1 stop

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

SJU

YUL

9h 09m1 stop

C$ 464Multiple Airlines

Sun, 1 Feb - Sun, 8 Feb

8:00 a.m. - 3:35 p.m.

YUL

SJU

30h 35m1 stop

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

SJU

YUL

9h 09m1 stop

C$ 465Multiple Airlines

Sun, 25 Jan - Sun, 1 Feb

8:00 a.m. - 8:02 p.m.

YUL

SJU

11h 02m1 stop

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

SJU

YUL

9h 09m1 stop

C$ 470Multiple Airlines

Thu, 22 Jan - Sun, 25 Jan

4:00 p.m. - 4:25 p.m.

YUL

SJU

23h 25m2 stops

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

SJU

YUL

9h 09m1 stop

C$ 471Multiple Airlines

Fri, 30 Jan - Sun, 8 Feb

6:45 a.m. - 8:02 p.m.

YUL

SJU

12h 17m2 stops

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

SJU

YUL

9h 09m1 stop

C$ 474Multiple Airlines

Wed, 21 Jan - Sun, 25 Jan

American Airlines flights from Montreal to San Juan

Our best American Airlines deals on Montreal to San Juan flight tickets

American Airlines

16 Dec

YUL3:50 p.m.Montreal Pierre Elliott Trudeau Intl

19h 09m

2 stops

SJU11:59 a.m.San Juan Luis Munoz Marin Intl

22 Dec

SJU2:44 p.m.San Juan Luis Munoz Marin Intl

8h 55m

1 stop

YUL10:39 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 421

Find similar

American Airlines

8 Feb

YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl

12h 50m

1 stop

SJU8:50 p.m.San Juan Luis Munoz Marin Intl

18 Feb

SJU9:17 a.m.San Juan Luis Munoz Marin Intl

7h 07m

1 stop

YUL3:24 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 481

Find similar

American Airlines

21 Jan

YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl

12h 50m

1 stop

SJU8:50 p.m.San Juan Luis Munoz Marin Intl

28 Jan

SJU8:20 a.m.San Juan Luis Munoz Marin Intl

15h 24m

1 stop

YUL10:44 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 485

Find similar

United Airlines flights from Montreal to San Juan

Our best United Airlines deals on Montreal to San Juan flight tickets

United Airlines

12 Jan

YUL3:00 p.m.Montreal Pierre Elliott Trudeau Intl

8h 36m

1 stop

SJU12:36 a.m.San Juan Luis Munoz Marin Intl

24 Jan

SJU8:10 a.m.San Juan Luis Munoz Marin Intl

8h 06m

1 stop

YUL3:16 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 489

Find similar

United Airlines

8 Apr

YUL2:20 p.m.Montreal Pierre Elliott Trudeau Intl

7h 04m

1 stop

SJU9:24 p.m.San Juan Luis Munoz Marin Intl

22 Apr

SJU4:55 p.m.San Juan Luis Munoz Marin Intl

7h 15m

1 stop

YUL12:10 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 501

Find similar

United Airlines

8 Apr

YUL2:20 p.m.Montreal Pierre Elliott Trudeau Intl

7h 04m

1 stop

SJU9:24 p.m.San Juan Luis Munoz Marin Intl

15 Apr

SJU4:55 p.m.San Juan Luis Munoz Marin Intl

7h 15m

1 stop

YUL12:10 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 503

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 18/1

8:00 a.m.-1:20 a.m.

1 stop16h 20m

San Juan Luis Munoz Marin Intl

Sun 25/1

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

1 stop9h 09m

C$ 409

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

6:45 a.m.-2:34 p.m.

1 stop7h 49m

San Juan Luis Munoz Marin Intl

Sun 5/4

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

1 stop8h 20m

C$ 431

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sat 28/3

8:00 a.m.-9:44 p.m.

1 stop13h 44m

San Juan Luis Munoz Marin Intl

Sun 5/4

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

1 stop8h 20m

C$ 453

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 6/3

4:25 p.m.-11:03 p.m.

1 stop29h 38m

San Juan Luis Munoz Marin Intl

Sun 15/3

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

1 stop8h 09m

C$ 459

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Thu 22/1

8:00 a.m.-8:02 p.m.

1 stop11h 02m

San Juan Luis Munoz Marin Intl

Sun 8/2

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

1 stop9h 09m

C$ 463

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 1/2

8:00 a.m.-3:35 p.m.

1 stop30h 35m

San Juan Luis Munoz Marin Intl

Sun 8/2

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

1 stop9h 09m

C$ 464

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

8:00 a.m.-3:35 p.m.

1 stop30h 35m

San Juan Luis Munoz Marin Intl

Sun 1/2

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

1 stop9h 09m

C$ 465

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Thu 22/1

8:00 a.m.-8:02 p.m.

1 stop11h 02m

San Juan Luis Munoz Marin Intl

Sun 25/1

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

1 stop9h 09m

C$ 470

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Fri 30/1

4:00 p.m.-4:25 p.m.

2 stops23h 25m

San Juan Luis Munoz Marin Intl

Sun 8/2

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

1 stop9h 09m

C$ 471

MontrealSan Juan

YUL - SJU

YULSJU

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

6:45 a.m.-8:02 p.m.

2 stops12h 17m

San Juan Luis Munoz Marin Intl

Sun 25/1

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

1 stop9h 09m

C$ 474

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montreal to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the typical price of a round-trip flight between Montreal and San Juan?

What is the cheapest month to fly to San Juan?

The month of October is, on average, the cheapest month to fly to San Juan from Montreal, with most prices found around C$ 501. If you aren’t able to travel to San Juan during the month of October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of C$ 562.

What is the cheapest day to depart on your flight to San Juan?

According to our data, Thursday is the cheapest day to fly to San Juan from Montreal. The lowest ticket price found for a Thursday departure recently was C$ 369. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Saturday is the most expensive day to depart from Montreal because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,136.

What is the cheapest time of day to depart on your flight to San Juan?

Our most recent data shows that the best time of day to fly to San Juan is in the afternoon. Flights from Montreal to San Juan during this time can be as low as C$ 663. At noon is when there is more demand to fly to San Juan, so prices are often more expensive at around C$ 799 per ticket.

What is the cheapest Montreal to San Juan flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to San Juan Luis Munoz Marin Intl for the best Montreal - San Juan flight prices

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around C$ 715 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Montreal for as low as C$ 504 on momondo.

What cabin class options are available on Montreal to San Juan flights?

There is only 1 cabin class available to choose from on Montreal to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Montreal to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to San Juan

Fastest flight time	4h 30m
Direct flights	Mon
Airports in San Juan	2 airports

The fastest flight from Montreal to San Juan takes 4h 30m

Direct flights go from Montreal to San Juan on Monday. There are no airlines offering direct flights.

There are 2 airports in San Juan. From Montreal there are direct flights to San Juan Luis Munoz Marin Intl (SJU).

Search flight deals

How far is Montreal to San Juan by plane?
There are 3081.6 km between Montreal and San Juan. A reasonable flight in good conditions will take 4h 30m.
When did momondo last update prices for flights from Montreal to San Juan?
Prices for flights from Montreal to San Juan are updated daily.
How many operators does momondo search for flights from Montreal to San Juan?
There are 6 operators available for flights from Montreal to San Juan as of December 2025.
How old do you have to be to fly from Montreal to San Juan?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Montreal to San Juan.
What documentation or ID do you need to fly to San Juan?
The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Montreal to San Juan

Compare and see reviews for airlines that fly from Montreal to San Juan with momondo

Airline	Rating	Free Cancellation	Price
Arajet	PriceFrom C$ 288	Free Cancellation	Rating 6.8 38 reviews	Search Arajet flights
Air Canada	PriceFrom C$ 369	Free Cancellation	Rating 7.1 10,527 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 381	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
American Airlines	PriceFrom C$ 387	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
Air Transat	PriceFrom C$ 472	Free Cancellation	Rating 7.8 483 reviews	Search Air Transat flights
WestJet	PriceFrom C$ 644	Free Cancellation	Rating 7.2 3,202 reviews	Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to San Juan?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montreal to San Juan . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Montreal to San Juan with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Juan from Montreal which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Montreal to San Juan?

momondo helps you find the best flight between Montreal and San Juan by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Montreal to San Juan right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Montreal to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your San Juan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 14/1

Wed 21/1

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

San Juan Isla Grande Airport

San Juan Luis Munoz Marin Intl Airport

Fly to other destinations from Montreal

Flights from Montreal Pierre Elliott Trudeau Intl to Moncton Intl

Flights from Montreal Pierre Elliott Trudeau Intl to Calgary

Flights from Montreal Pierre Elliott Trudeau Intl to Toronto Island

Flights from Montreal Pierre Elliott Trudeau Intl to Toronto Pearson Intl

Flights from Montreal Pierre Elliott Trudeau Intl to Halifax Intl

Flights from Montreal Pierre Elliott Trudeau Intl to Vancouver Intl

Cheap flights from Montreal to San Juan from C$ 209

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to San Juan departing on 18/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Montreal to San Juan

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

American Airlines flights from Montreal to San Juan

Our best American Airlines deals on Montreal to San Juan flight tickets

United Airlines flights from Montreal to San Juan

Our best United Airlines deals on Montreal to San Juan flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Montreal to San Juan that are best for you.

See travel insights to San Juan from

How to get the cheapest flight ticket from Montreal to San Juan

What is the typical price of a round-trip flight between Montreal and San Juan?

What is the cheapest month to fly to San Juan?

What is the cheapest day to depart on your flight to San Juan?

What is the cheapest time of day to depart on your flight to San Juan?

Our most recent data shows that the best time of day to fly to San Juan is in the afternoon. Flights from Montreal to San Juan during this time can be as low as C$ 663. At noon is when there is more demand to fly to San Juan, so prices are often more expensive at around C$ 799 per ticket.

What is the cheapest Montreal to San Juan flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to San Juan Luis Munoz Marin Intl for the best Montreal - San Juan flight prices

How far in advance should I book a flight to San Juan?

What cabin class options are available on Montreal to San Juan flights?

There is only 1 cabin class available to choose from on Montreal to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Montreal to San Juan?

American Airlines is the most popular carrier operating from Montreal to San Juan

Which airlines fly to San Juan?

How often are flights from Montreal to San Juan delayed?

Historically, on average around 22% of flights between Montreal and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 96 minutes.

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

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

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

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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

According to our data, Air Transat has had the least delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

How many flights depart from Montreal to San Juan on average per week?

As of December 2025, 1 flights take off from Montreal and land in San Juan each week. The most common flight departure day for this route is Sun, with 100% of weekly flights taking off on this day.

Cheap Montreal to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to San Juan

Fastest flight time

Direct flights

Airports in San Juan

How far is Montreal to San Juan by plane?

When did momondo last update prices for flights from Montreal to San Juan?

How many operators does momondo search for flights from Montreal to San Juan?

How old do you have to be to fly from Montreal to San Juan?

What documentation or ID do you need to fly to San Juan?

Best airlines flying from Montreal to San Juan

Compare and see reviews for airlines that fly from Montreal to San Juan with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to San Juan?

Can I find flights from Montreal to San Juan with flexible booking policies on momondo?

How can momondo help me find flights from Montreal to San Juan?

I’m not ready to book a flight from Montreal to San Juan right now. Can momondo alert me if prices change?

An easier way to manage your San Juan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 11.5 km from San Juan