Cheapflights Tip: The best prices from Montreal to San Juan are usually found in September or October, booked 70 days in advance, depart on a Monday or Tuesday and return on a Tuesday
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 21 October 2026.
Popular in
December
Cheapest in
September
Average price
C$ 501
Highest demand for flights based on searches. 8% potential increase in price (C$ 90 potential increase over avg. RT price).
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.
YMQ-PR1
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
Prices
Delays
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 68 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, September is the cheapest month in which you can book a flight from Montreal to San Juan (average of C$ 539). Flying from Montreal to San Juan in December is currently the most expensive (average of C$ 1,066). 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 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 148 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.
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 21 October 2026.
Check out reviews from past customers who have flown with United Airlines,WestJet, andAir Canada 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.
Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
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$ 266, Air Canada will fly you from Montreal to San Juan and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Arajet and United Airlines - these airlines can fly you to your destination from C$ 291 and C$ 369, respectively. Air Canada is 62% 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$ 183), United Airlines (C$ 244), and Air Canada (C$ 252).
What are the cheapest flights from Montreal to San Juan?
While on average a flight from Montreal to San Juan is generally C$ 731, our data shows the cheapest flight currently is C$ 264. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Juan Luis Munoz Marin Intl), you can expect to pay C$ 471 for that flight.
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, September is the cheapest month in which you can book a flight from Montreal to San Juan (average of C$ 539). Flying from Montreal to San Juan in December is currently the most expensive (average of C$ 1,066). 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.
Browse through other flights departing from Montreal. Flights are based on user searches made on Cheapflights and were last updated on 21 October 2026.
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 7,457,451 searches. Data last updated 21 October 2026.
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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