S$291 Cheap Flights from Seattle to San Juan

View S$291 flight on Sun, 24 Aug, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Luis Munoz Marin Intl. Airport (SJU)

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Cheap Flights from Seattle to San Juan (SEA-SJU)

Prices were available within the past 7 days and start at S$291 for one-way flights and S$590 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$590 Return, found 1 day ago
S$590
Return
found 1 day ago
Select United flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$590 found 1 day ago
United
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$599 Return, found 1 day ago
S$599
Return
found 1 day ago
Select United flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$599 found 1 day ago
United
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$638 Return, found 1 day ago
S$638
Return
found 1 day ago
Select United flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$638 found 1 day ago
United
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$647 Return, found 1 day ago
S$647
Return
found 1 day ago
Select United flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$647 found 1 day ago
American Airlines
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$656 Return, found 1 day ago
S$656
Return
found 1 day ago
Select American Airlines flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$656 found 1 day ago
American Airlines
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$665 Return, found 1 day ago
S$665
Return
found 1 day ago
Select American Airlines flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$665 found 1 day ago
United
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$691 Return, found 1 day ago
S$691
Return
found 1 day ago
Select United flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$691 found 1 day ago
Alaska Airlines
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$706 Return, found 1 day ago
S$706
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$706 found 1 day ago
American Airlines
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$711 Return, found 1 day ago
S$711
Return
found 1 day ago
Select American Airlines flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$711 found 1 day ago
Delta
Fri, 7 Nov - Sat, 15 Nov
SEA
Seattle
SJU
San Juan
S$715 Return, found 1 day ago
S$715
Return
found 1 day ago
Select Delta flight, departing Fri, 7 Nov from Seattle to San Juan, returning Sat, 15 Nov, priced at S$715 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to San Juan (SJU)

October is typically the cheapest month to fly

From S$291 - S$545 per traveller.

Graph displaying average flight prices per month

Seattle to San Juan route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Luis Munoz Marin Intl.
Airlines serving
American Airlines, Delta, United
Return price
S$589
Distance
5959 km

Perfect flights from Seattle to San Juan

Your Journey from Seattle to San Juan

Start your unforgettable journey with Expedia. Our broad selection of flights from Seattle to San Juan caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including American Airlines, United, Alaska Airlines, Delta. Our selection of flights from Seattle - Tacoma Intl. to Luis Munoz Marin Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seattle to San Juan Flights

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to Luis Munoz Marin Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$291 and roundtrip prices from S$590*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to San Juan with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant San Juan

Picture yourself stepping off the plane in San Juan and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seattle to San Juan Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seattle to San Juan.
 

Beyond the Flight – Exploring San Juan

With Expedia, your adventure extends beyond the flight. Explore San Juan at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seattle to San Juan with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seattle to San Juan with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Sea-Tac Airport to SJU?
Start packing your suitcase, because round-trip flights from SEA to Isla Verde Intl. Airport start from S$590. That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book now to secure the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Luis Munoz Marin Intl. Airport (SJU)?
Most flights can be cancelled online, but each air carrier has its own terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to SJU that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Isla Verde Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to Luis Munoz Marin Intl. Airport (SJU)?
With a flight distance of 6,000 kilometres from Seattle - Tacoma Intl. Airport (SEA) (SEA) to Isla Verde Intl. Airport (SJU), this is a long flight. Ensure that you drink lots of water and go for a short walk down the aisle every so often.
Which airlines fly direct from Sea-Tac Airport to Luis Munoz Marin Intl. Airport (SJU)?
Direct flights aren't available, so you'll have to make at least one stop between Seattle - Tacoma Intl. Airport (SEA) and Isla Verde Intl. Airport. Use the layover time to stretch your legs and freshen up.
Are SEA to SJU flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally pick up a bargain, with some super cheap airfares from SEA to Luis Munoz Marin Intl. Airport (SJU) arising a few weeks before the date of departure. If you'd rather book ahead, Expedia compares and updates all the best flight deals continually --- as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines issue prices so far in advance.

Explore a world of travel with Expedia

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