C$193 Cheap Flights from Montreal to San Juan

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Find the cheapest month or even day of the year to fly to San Juan

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Flight deals from Montreal to San Juan

Looking for a cheap last-minute deal or the best return flight from Montreal to San Juan? If you want to travel next month, return fares start from C$444. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Montreal to San Juan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Montreal to San Juan flights are currently cheapest in April.

Direct flights from Montreal to San Juan

Alternative Montreal to San Juan routes

Looking for the cheapest, fastest or easiest route from Montreal to San Juan? You could fly into the following airports instead.

Montreal to San Juan: Flight information

The things to know before you go.
Cheapest flight foundC$193
Cheapest month to flyApril
Average flight time4 hrs, 32 mins
Most popular airlinePorter Airlines
Average flights per week4

Finding cheap flights from Montreal to San Juan: Frequently asked questions

There are 6 airports in San Juan: San Juan Isla Grande, San Juan Luis Munoz Marin, Roosevelt Roads, Ponce, Vieques, and Culebra.
The best price we found for a return flight from Montreal to San Juan is C$332. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 32 minutes is the average flight time from Montreal to San Juan.
Porter Airlines, Air Canada Rouge and Air Canada fly direct from Montreal to San Juan.
As of November 2025, there are 16 flights per week flying from Montreal to San Juan.
The cheapest month to fly from Montreal to San Juan is usually May.
If you're flying from Montreal, the cheapest airport near San Juan is San Juan Luis Munoz Marin – which is 11.3 km away from the centre of San Juan. We've found flights into this airport from C$332.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to San Juan on Wednesday, May 20, 2026.
Yes – the average flight time is 4 hours and 32 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
In November, the average temperature is usually around 26°C. August is typically the warmest month in San Juan, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging 23°C. The rainiest month is September.
The cheapest airline that flies to San Juan is Arajet. And the cheapest airline that flies to San Juan Luis Munoz Marin Airport is Air Transat.

Travelling from Montreal to San Juan: what you need to know

  • Montreal's main base, Montreal-Pierre Elliott Trudeau International Airport (YUL), is where many unforgettable trips begin. Explore your departure choices from here for your flight from Montreal to San Juan.

  • Come in for landing at Luis Munoz Marin International Airport (SJU), the primary hub in San Juan.

  • On average, direct flights from Montreal to San Juan take 4 hours 30 minutes. San Juan and Montreal share the same timezone (UTC-4), so you won't need to adjust your watch once you arrive.

  • To ensure you catch your flight from Montreal to San Juan, leave enough time for things like check-in and baggage drop. Turning up two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • You'll likely experience longer lines during popular months like August and other peak periods. Arriving up to four hours in advance for international flights and two hours for a domestic departure will give you plenty of time for security and boarding.

  • You can enter Puerto Rico for tourism purposes without a visa if you hold a passport from Canada. But before reserving your cheap flight from Montreal to San Juan, make sure you're up to date with the latest guidelines. Visa rules can change, and you may need some travel documentation if your trip is for work or other reasons.

Flying from Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • You can get a direct flight from Montreal to San Juan departing from Montreal-Pierre Elliott Trudeau International Airport (YUL). Start your journey at YUL and end it at Luis Munoz Marin International Airport (SJU).

  • Air Canada is a leading airline that operates direct flights from Montreal to San Juan taking off from YUL.

  • YUL is around 26 kilometres from central Montreal. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 25 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the trip time to be around 2 hours and 15 minutes.

  • Need a handy hotel near Montreal-Pierre Elliott Trudeau International Airport? If you've booked an early flight from Montreal to San Juan, these accommodation options will have you moments from check-in:

Arriving in San Juan

Luis Munoz Marin International Airport (SJU)

Fernando Luis Ribas Dominicci Airport (SIG)

How to find the cheapest flights from Montreal to San Juan

  • The cheapest price we've found for a one-way ticket from Montreal to San Juan is C$193. For a return flight on this route, the best price is C$332. Depending on when you book and the availability, these fares may change.

  • Book 9 months before flying. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap flights from Montreal to San Juan.

  • The cheapest month for tickets from Montreal to San Juan is May. Compare prices using the 'Whole month' tool to find the cheapest day to fly.

  • Snapping up a cheap ticket from Montreal to San Juan is a breeze with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you as soon as the price has fallen.

  • Tailor your flights using filters. Choose your arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Montreal to San Juan.

Best time to go to San Juan

  • May is the quietest month for flights from Montreal to San Juan, while July is the most popular. Figure out the best time to go to San Juan based on whether you want a laid-back vibe or a more bustling atmosphere.

  • When booking your flight from Montreal to San Juan, consider the kind of weather you like. September is the warmest month in San Juan, with temperatures ranging from 23ºC to 33ºC.

  • If you like travelling in cooler conditions, search for a cheap ticket from Montreal to San Juan in February when temperatures average between 20ºC and 28ºC.

More about San Juan

  • Start your San Juan trip off on the right foot by choosing the perfect place to stay. As soon as you've booked your flight from Montreal to San Juan, browse our range of hotels including:

  • Castillo San Felipe del Morro and La Garita del morro de san juan bahia are just the start of the big attractions to put on your San Juan travel itinerary. Keep the adventure rolling by checking out Fortaleza Street.

Complete your San Juan trip with a car rental

  • Finding you a cheap flight from Montreal to San Juan isn't our only cool trick. Check out our car rentals in San Juan and travel at your own pace. We search for deals from trusted car rental providers and put them all in one place. You can instantly compare rates and then book with no fees.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.