$356 Cheap Flights from San Juan (SJU) to Porto (OPO)

View $356 flight on Tue, Mar 10, 2026Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Porto Airport (OPO)

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Cheap Flights from San Juan to Porto (SJU-OPO)

Prices were available within the past 7 days and start at $356 for one-way flights and $391 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Mar 9 - Tue, Mar 24
SJU
San Juan
OPO
Porto
$391 Roundtrip, found 20 hours ago
$391
Roundtrip
found 20 hours ago
Select United flight, departing Mon, Mar 9 from San Juan to Porto, returning Tue, Mar 24, priced at $391 found 20 hours ago
Iberia
Mon, Mar 9 - Wed, Mar 18
SJU
San Juan
OPO
Porto
$392 Roundtrip, found 16 hours ago
$392
Roundtrip
found 16 hours ago
Select Iberia flight, departing Mon, Mar 9 from San Juan to Porto, returning Wed, Mar 18, priced at $392 found 16 hours ago
Iberia
Mon, Mar 9 - Wed, Mar 18
SJU
San Juan
OPO
Porto
$400 Roundtrip, found 16 hours ago
$400
Roundtrip
found 16 hours ago
Select Iberia flight, departing Mon, Mar 9 from San Juan to Porto, returning Wed, Mar 18, priced at $400 found 16 hours ago
Iberia
Mon, Mar 9 - Wed, Mar 18
SJU
San Juan
OPO
Porto
$402 Roundtrip, found 16 hours ago
$402
Roundtrip
found 16 hours ago
Select Iberia flight, departing Mon, Mar 9 from San Juan to Porto, returning Wed, Mar 18, priced at $402 found 16 hours ago
United
Mon, Feb 23 - Tue, Mar 10
SJU
San Juan
OPO
Porto
$406 Roundtrip, found 20 hours ago
$406
Roundtrip
found 20 hours ago
Select United flight, departing Mon, Feb 23 from San Juan to Porto, returning Tue, Mar 10, priced at $406 found 20 hours ago
Iberia
Tue, Mar 10 - Mon, Mar 16
SJU
San Juan
OPO
Porto
$406 Roundtrip, found 4 days ago
$406
Roundtrip
found 4 days ago
Select Iberia flight, departing Tue, Mar 10 from San Juan to Porto, returning Mon, Mar 16, priced at $406 found 4 days ago
American Airlines
Sun, Mar 15 - Tue, Mar 31
SJU
San Juan
OPO
Porto
$410 Roundtrip, found 5 days ago
$410
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Mar 15 from San Juan to Porto, returning Tue, Mar 31, priced at $410 found 5 days ago
Iberia
Mon, Mar 9 - Wed, Mar 18
SJU
San Juan
OPO
Porto
$410 Roundtrip, found 16 hours ago
$410
Roundtrip
found 16 hours ago
Select Iberia flight, departing Mon, Mar 9 from San Juan to Porto, returning Wed, Mar 18, priced at $410 found 16 hours ago
Lufthansa
Wed, Feb 18 - Wed, Feb 25
SJU
San Juan
OPO
Porto
$415 Roundtrip, found 5 days ago
$415
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Feb 18 from San Juan to Porto, returning Wed, Feb 25, priced at $415 found 5 days ago
British Airways
Tue, Jan 13 - Tue, Jan 27
SJU
San Juan
OPO
Porto
$426 Roundtrip, found 1 day ago
$426
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Jan 13 from San Juan to Porto, returning Tue, Jan 27, priced at $426 found 1 day ago

Find the cheapest month to fly from San Juan (SJU) to Porto (OPO)

January is typically the cheapest month to fly

From $416 - $1,733 per traveler.

Alternative airports near Porto

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dr. Francisco de Sa Carneiro OPO. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $1,888
OPO
Dr. Francisco de Sa Carneiro
CheapestClosest
Average driving time to city center14 min
Flights from $1,888
Flights from San Juan (SJU) to Porto (OPO)
Origin airport
Luis Munoz Marin Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air Canada, Air Europa, Air France, American Airlines, British Airways, Delta, Iberia, KLM, Lufthansa, TAP Portugal, Turkish Airlines, United
Roundtrip price
$391
Distance
3702 mi

San Juan to Porto Flights

The cheapest times to fly from San Juan to Porto

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 are during the month of March. You can find some of the cheapest flights from San Juan to Porto with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from San Juan to Porto: 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

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 in 2026. You can also book with separate airlines for your outbound and return journeys, from $356 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 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 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 Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Snag a cheap one-way flight from $356 or cheap return flight from $391 from Luis Munoz Marin Intl. Airport (SJU) to Dr. Francisco de Sa Carneiro Airport (OPO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Luis Munoz Marin Intl. Airport (SJU) to Dr. Francisco de Sa Carneiro Airport (OPO)?
March is the cheapest month to fly from SJU to OPO. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To find the cheapest airline that'll fly you from SJU to OPO, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Dr. Francisco de Sa Carneiro Airport (OPO)?
There are no daily direct flights from Luis Munoz Marin Intl. Airport (SJU) to Dr. Francisco de Sa Carneiro Airport (OPO). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from SJU to OPO?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*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 Dr. Francisco de Sa Carneiro Airport (OPO)?
To reach Dr. Francisco de Sa Carneiro Airport (OPO) on time, book a flight that takes off from Luis Munoz Marin Intl. Airport (SJU) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Waiting until just before your departure to book a flight from SJU to OPO often results in higher prices. While you may come across some last-minute discounts, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of getting a bargain.
Is it cheaper to book a SJU to OPO flight and hotel package?
Compared with arranging flights and hotels separately, booking a SJU to OPO flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place will take the stress out of planning your trip. Just pick your flights and select from our wide range of stays, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Dr. Francisco de Sa Carneiro Airport (OPO)?
In most cases, you can cancel or modify your SJU to OPO flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you'd like further details, go to our Customer Service portal.

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*Available to One Key members.