$259 Cheap Flights from San Juan (SJU) to Porto Alegre (POA)

View $259 flight on Thu, Sep 25, 2025Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Salgado Filho Intl. Airport (POA)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from San Juan to Porto Alegre (SJU-POA)

Prices were available within the past 7 days and start at $259 for one-way flights and $645 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Copa
Tue, Nov 11 - Fri, Nov 21
SJU
San Juan
POA
Porto Alegre
$645 Roundtrip, found 5 hours ago
$645
Roundtrip
found 5 hours ago
Select Copa flight, departing Tue, Nov 11 from San Juan to Porto Alegre, returning Fri, Nov 21, priced at $645 found 5 hours ago
Copa
Mon, Nov 10 - Sat, Nov 22
SJU
San Juan
POA
Porto Alegre
$665 Roundtrip, found 14 hours ago
$665
Roundtrip
found 14 hours ago
Select Copa flight, departing Mon, Nov 10 from San Juan to Porto Alegre, returning Sat, Nov 22, priced at $665 found 14 hours ago
avianca
Mon, Nov 10 - Sat, Nov 22
SJU
San Juan
POA
Porto Alegre
$679 Roundtrip, found 14 hours ago
$679
Roundtrip
found 14 hours ago
Select avianca flight, departing Mon, Nov 10 from San Juan to Porto Alegre, returning Sat, Nov 22, priced at $679 found 14 hours ago
Copa
Mon, Nov 10 - Sat, Nov 22
SJU
San Juan
POA
Porto Alegre
$693 Roundtrip, found 14 hours ago
$693
Roundtrip
found 14 hours ago
Select Copa flight, departing Mon, Nov 10 from San Juan to Porto Alegre, returning Sat, Nov 22, priced at $693 found 14 hours ago
avianca
Thu, Aug 14 - Thu, Aug 21
SJU
San Juan
POA
Porto Alegre
$707 Roundtrip, found 4 days ago
$707
Roundtrip
found 4 days ago
Select avianca flight, departing Thu, Aug 14 from San Juan to Porto Alegre, returning Thu, Aug 21, priced at $707 found 4 days ago
avianca
Tue, Nov 11 - Fri, Nov 21
SJU
San Juan
POA
Porto Alegre
$721 Roundtrip, found 5 hours ago
$721
Roundtrip
found 5 hours ago
Select avianca flight, departing Tue, Nov 11 from San Juan to Porto Alegre, returning Fri, Nov 21, priced at $721 found 5 hours ago
Copa
Mon, Nov 10 - Sat, Nov 22
SJU
San Juan
POA
Porto Alegre
$735 Roundtrip, found 14 hours ago
$735
Roundtrip
found 14 hours ago
Select Copa flight, departing Mon, Nov 10 from San Juan to Porto Alegre, returning Sat, Nov 22, priced at $735 found 14 hours ago
Delta
Tue, Nov 11 - Fri, Nov 21
SJU
San Juan
POA
Porto Alegre
$746 Roundtrip, found 5 hours ago
$746
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Nov 11 from San Juan to Porto Alegre, returning Fri, Nov 21, priced at $746 found 5 hours ago
United
Tue, Nov 11 - Fri, Nov 21
SJU
San Juan
POA
Porto Alegre
$760 Roundtrip, found 5 hours ago
$760
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Nov 11 from San Juan to Porto Alegre, returning Fri, Nov 21, priced at $760 found 5 hours ago
LATAM Airlines Group
Mon, Nov 10 - Sat, Nov 22
SJU
San Juan
POA
Porto Alegre
$787 Roundtrip, found 14 hours ago
$787
Roundtrip
found 14 hours ago
Select LATAM Airlines Group flight, departing Mon, Nov 10 from San Juan to Porto Alegre, returning Sat, Nov 22, priced at $787 found 14 hours ago
Flights from San Juan (SJU) to Porto Alegre (POA)
Origin airport
Luis Munoz Marin Intl.
Destination airport
Salgado Filho Intl.
Airlines serving
American Airlines, Azul, Copa, Delta, LATAM Airlines Group, United
Roundtrip price
$644
Distance
3488 mi

San Juan to Porto Alegre Flights

The cheapest times to fly from San Juan to Porto Alegre

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Porto Alegre are during the month of November. You can find some of the cheapest flights from San Juan to Porto Alegre with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to Porto Alegre

Sunday is one of the best days to book for cheap flights from San Juan to Porto Alegre: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Juan to Porto Alegre

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Porto Alegre in 2025. You can also book with separate airlines for your outbound and return journeys, from $259 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Porto Alegre flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Porto Alegre airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Salgado Filho Intl. Airport (POA) cost?
Discover the latest flight deals from SJU to POA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SJU to POA?
The cheapest flights from SJU to POA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SJU to POA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SJU to POA. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Salgado Filho Intl. Airport (POA)?
Direct flights from Luis Munoz Marin Intl. Airport (SJU) to Salgado Filho Intl. Airport (POA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SJU to POA?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Salgado Filho Intl. Airport (POA)?
Book a flight from Luis Munoz Marin Intl. Airport (SJU) to Salgado Filho Intl. Airport (POA) that takes off before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Salgado Filho Intl. Airport (POA) last-minute?
Holding off until just before your departure to book a flight from SJU to POA often results in higher prices. While you may find some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans to boost your chances of snagging a bargain.
Is it cheaper to book a SJU to POA flight and hotel package?
Booking a SJU to POA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Salgado Filho Intl. Airport (POA)?
Generally, it's possible to reschedule or cancel your SJU to POA flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.