Cheap flights from Montreal to San Juan

Compare Montreal to San Juan flight deals

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? 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

Montreal to San Juan: Flight information

The things to know before you go.
Cheapest flight found$171
Cheapest month to flyApril
Average flight time4 hrs, 32 mins
Most popular airlineAir Canada Rouge
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 $346. 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.
Air Canada Rouge, Air Canada and Air Transat fly direct from Montreal to San Juan.
As of February 2026, there are 4 flights per week flying from Montreal to San Juan.
The cheapest month to fly from Montreal to San Juan is usually April.
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 $346.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to San Juan on Tuesday, 28 April 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 February, the average temperature is usually around 25°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 United. And the cheapest airline that flies to San Juan Luis Munoz Marin Airport is Air Canada.

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

  • Planning your holiday starts with figuring out where you'll fly out of in Montreal. Montreal-Pierre Elliott Trudeau International Airport (YUL) is the city's main base, so explore your options for booking a flight from Montreal to San Juan departing from here.

  • Touch down at San Juan's primary gateway, Luis Munoz Marin International Airport (SJU).

  • Jump on a direct Montreal to San Juan flight and you'll be travelling for an average of 4 hours 30 minutes.

  • Montreal and San Juan share the same timezone, UTC-4.

  • Leave plenty of time to get on your Montreal to San Juan flight. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Flying during a peak time such as August? Public holidays and other popular seasons can mean longer queues at check-in and security. Be extra cautious and arrive up to four hours before international flights and two hours before a domestic departure.

How to find the cheapest flights from Montreal to San Juan

  • Currently, $171 is the lowest price we've found for a one-way ticket from Montreal to San Juan. The cheapest price for a return flight is $346. Keep in mind fares may change due to demand at the time of booking.

  • To secure cheap Montreal to San Juan flights, book your trip two months before your planned departure.

  • Organise your trip for May. That's the best month for landing cheap plane tickets from Montreal to San Juan. If your travel dates are not set in stone, use the 'Whole month' tool to find the lowest price across every month.

  • Save time looking for cheap flights from Montreal to San Juan by setting up a Price Alert. We'll send you an email or notification through the app when fares go down.

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

Flying from Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • If you're looking for a direct flight from Montreal to San Juan, you can leave from Montreal-Pierre Elliott Trudeau International Airport (YUL). Get from YUL to Luis Munoz Marin International Airport (SJU) in one seamless trip.

  • Secure your Montreal to San Juan plane tickets with Air Canada. This carrier is a top pick for direct flights from YUL.

  • YUL is about 16 kilometres from central Montreal. If you're catching a cab, ride-sharing or driving from the centre, it'll take 25 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the trip time to be around 45 minutes.

  • Looking for a handy hotel close to Montreal-Pierre Elliott Trudeau International Airport? If you're catching an early flight from Montreal to San Juan, these stays will have you moments from check-in:

  • 64.89% of flights taking off from Montreal-Pierre Elliott Trudeau International Airport touch down at their destination on schedule.

  • YUL is located at 975 Romeo Vachon Street North.

Arriving in San Juan

Luis Munoz Marin International Airport (SJU)

  • Luis Munoz Marin International Airport (SJU) to central San Juan takes around 10 minutes to reach by car. The centre is roughly 11 kilometres away.

  • If you're using public transport, expect a journey time of roughly 55 minutes.

  • If you're coming in on a late flight from Montreal to San Juan, few things beat the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and sleeping soon after at one of these hotels near SJU:

  • Grab a Luis Munoz Marin International Airport rental car and discover San Juan and beyond with your own set of wheels. Sixt, Ace Rent a Car and U-Save are well-known companies you can book with here.

  • Booking your vehicle from Luis Munoz Marin International Airport about two weeks ahead can help you get the best possible rate.

Fernando Luis Ribas Dominicci Airport (SIG)

  • Central San Juan is around 6 kilometres from Fernando Luis Ribas Dominicci Airport (SIG). Once your flight from Montreal to San Juan has landed and you've made your way through the terminal, the drive should take about 15 minutes.

  • You can expect the trip to take roughly 1 hour on public transport.

Best time to go to San Juan

  • July is the busiest month for flights from Montreal to San Juan. To steer clear of the crowds, head to San Juan in May.

  • Lock in a Montreal to San Juan ticket departing in September if you want to visit the city during its warmest month. Expect temperatures in San Juan to range from 23ºC (73ºF) to 33ºC (91ºF).

  • February sees average temperatures of between 20ºC (68ºF) and 28ºC (82ºF). Look for cheap flights from Montreal to San Juan around that time if you'd rather travel in cooler conditions.

More about San Juan

  • Start your San Juan trip right by choosing the perfect place to stay. As soon as you've booked your flight from Montreal to San Juan, check out our selection of hotels including:

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

Explore more of Puerto Rico

  • You've done San Juan, now it's time to explore more of Puerto Rico. Journey about 10 kilometres west to Bayamon to tick off its leading attractions. From Plazoleta Ignacio Zorrilla, La Plaza de la Bomba Puertorriqueña to Monumento a los Trovadores and Parque Palm Court, you've got a jam-packed schedule ahead.

  • Around 11 kilometres east of San Juan, Carolina is another essential stop in Puerto Rico. Experience major highlights starting with Isla Verde Beach, Parque de Doble A Roberto Clemente Walker and Drone Zone Track.

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