Cheap Flights from Portland (PDX) to San Juan (SIG)

Popular airlines from Portland International Airport (PDX) to San Juan (SIG-Fernando Luis Ribas Dominicci)

Alternative airports near San Juan

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

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $545
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $545
Flights from Portland (PDX) to San Juan (SIG)
Origin airport
Portland Intl.
Destination airport
Fernando Luis Ribas Dominicci
Distance
3706 mi

Portland to San Juan Flights

The cheapest times to fly from Portland to San Juan

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

 

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

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

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 Portland to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Portland to San Juan 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 Portland to San Juan 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 Portland Intl. Airport (PDX) to Fernando Luis Ribas Dominicci Airport (SIG) cost?
Lock in a cheap one-way flight or cheap return flight from Portland Intl. Airport (PDX) to Fernando Luis Ribas Dominicci Airport (SIG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Fernando Luis Ribas Dominicci Airport (SIG)?
The cheapest month to fly from PDX to SIG is , when demand is low. Off-peak months are often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Fernando Luis Ribas Dominicci Airport (SIG)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from PDX to SIG. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Portland Intl. Airport (PDX) to Fernando Luis Ribas Dominicci Airport (SIG)?
You'll have to take a flight with a layover when traveling from Portland Intl. Airport (PDX) to Fernando Luis Ribas Dominicci Airport (SIG). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from PDX to SIG?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary depending on the season, carrier 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 Portland Intl. Airport (PDX) to Fernando Luis Ribas Dominicci Airport (SIG)?
To touch down at Fernando Luis Ribas Dominicci Airport (SIG) on schedule, pick a flight that leaves from Portland Intl. Airport (PDX) 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 Portland Intl. Airport (PDX) to Fernando Luis Ribas Dominicci Airport (SIG) last-minute?
Last-minute fares from PDX to SIG are usually more expensive. To lock in the best prices, start looking for flights ahead of time. That being said, if you're flexible with your travel plans, you may land a cheap fare right before you leave.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Fernando Luis Ribas Dominicci Airport (SIG)?
If you booked your PDX to SIG flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.