$449 Cheap Flights from Seattle Paine Field Intl. Airport (PAE) to San Juan (SJU)

View $449 flight on Sun, Sep 7, 2025Opens in a new window

Popular airlines from Seattle Paine Field Intl. Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU)

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Cheap Flights from Seattle Paine Field Intl. Airport to San Juan (PAE-SJU)

Prices were available within the past 7 days and start at $449 for one-way flights and $660 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Sep 25 - Sun, Sep 28
PAE
Seattle
SJU
San Juan
$660 Roundtrip, found 5 days ago
$660
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Sep 25 from Seattle to San Juan, returning Sun, Sep 28, priced at $660 found 5 days ago
Alaska Airlines
Thu, Sep 25 - Sun, Sep 28
PAE
Seattle
SJU
San Juan
$664 Roundtrip, found 4 days ago
$664
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Sep 25 from Seattle to San Juan, returning Sun, Sep 28, priced at $664 found 4 days ago
Alaska Airlines
Thu, Sep 25 - Sun, Sep 28
PAE
Seattle
SJU
San Juan
$683 Roundtrip, found 1 day ago
$683
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Sep 25 from Seattle to San Juan, returning Sun, Sep 28, priced at $683 found 1 day ago
Alaska Airlines
Wed, Sep 24 - Sat, Sep 27
PAE
Seattle
SJU
San Juan
$683 Roundtrip, found 1 day ago
$683
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Sep 24 from Seattle to San Juan, returning Sat, Sep 27, priced at $683 found 1 day ago
Alaska Airlines
Thu, Sep 25 - Sun, Sep 28
PAE
Seattle
SJU
San Juan
$693 Roundtrip, found 5 days ago
$693
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Sep 25 from Seattle to San Juan, returning Sun, Sep 28, priced at $693 found 5 days ago
Alaska Airlines
Thu, Sep 25 - Sun, Sep 28
PAE
Seattle
SJU
San Juan
$701 Roundtrip, found 5 days ago
$701
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Sep 25 from Seattle to San Juan, returning Sun, Sep 28, priced at $701 found 5 days ago
Alaska Airlines
Wed, Sep 24 - Sat, Sep 27
PAE
Seattle
SJU
San Juan
$703 Roundtrip, found 1 day ago
$703
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Sep 24 from Seattle to San Juan, returning Sat, Sep 27, priced at $703 found 1 day ago
Alaska Airlines
Fri, Jan 30 - Sat, Feb 7
PAE
Seattle
SJU
San Juan
$708 Roundtrip, found 1 day ago
$708
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Jan 30 from Seattle to San Juan, returning Sat, Feb 7, priced at $708 found 1 day ago
Alaska Airlines
Wed, Sep 24 - Sat, Sep 27
PAE
Seattle
SJU
San Juan
$712 Roundtrip, found 4 days ago
$712
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Sep 24 from Seattle to San Juan, returning Sat, Sep 27, priced at $712 found 4 days ago
Alaska Airlines
Wed, Sep 24 - Sat, Sep 27
PAE
Seattle
SJU
San Juan
$714 Roundtrip, found 5 days ago
$714
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 24 from Seattle to San Juan, returning Sat, Sep 27, priced at $714 found 5 days ago
Flights from Seattle Paine Field Intl. Airport (PAE) to San Juan (SJU)
Origin airport
Seattle Paine Field Intl. Airport
Destination airport
Luis Munoz Marin Intl.
Roundtrip price
$659
Distance
3730 mi

Seattle Paine Field Intl. Airport to San Juan Flights

The cheapest times to fly from Seattle Paine Field Intl. Airport 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 Seattle Paine Field Intl. Airport to San Juan are during the month of September. You can find some of the cheapest flights from Seattle Paine Field Intl. Airport to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle Paine Field Intl. Airport to San Juan

Sunday is one of the best days to book for cheap flights from Seattle Paine Field Intl. Airport 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 Seattle Paine Field Intl. Airport 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 Seattle Paine Field Intl. Airport to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from $449 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 Seattle Paine Field Intl. Airport 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 Seattle Paine Field Intl. Airport 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 Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU) cost?
Secure a cheap one-way flight from $449 or cheap return flight from $660 from Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU)?
Planning your getaway for September may help you find better deals, as it's the cheapest month for flights between PAE and SJU. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from PAE to SJU. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU)?
Direct flights from Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PAE to SJU?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change based 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 Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU)?
Opt for a flight from Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU) last-minute?
Booking your flight from PAE to SJU just before your getaway is usually more expensive. However, if there's some wiggle room with your departure dates and times, you could score a cheap last-minute fare.
Can I cancel or change the date of my flight from Snohomish County - Paine Field Airport (PAE) to Luis Munoz Marin Intl. Airport (SJU)?
In most cases, you're able to cancel or reschedule your PAE to SJU flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need more details, go to our Customer Service portal.

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*Available to One Key members.