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Puerto Rico

$131+ Cheap flights from Seattle (SEA) to Puerto Rico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Seattle to Puerto Rico

Cheapest flights from Seattle to Puerto Rico
Explore the most affordable flight options available from Seattle to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This American Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:20 amSEA - SJU
1 stop13h 40mAmerican Airlines
Sat 1/106:00 amSJU - SEA
1 stop20h 20mAmerican Airlines
Deal found 12/13$563
This American Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1712:41 pmSEA - SJU
1 stop18h 58mAmerican Airlines
Wed 12/3110:03 pmSJU - SEA
1 stop17h 27mAmerican Airlines
Deal found 12/14$678
This American Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:18 amSEA - SJU
1 stop12h 07mAmerican Airlines
Wed 12/3110:03 pmSJU - SEA
1 stop17h 27mAmerican Airlines
Deal found 12/14$718
This Delta deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:25 amSEA - SJU
2 stops14h 34mDelta
Thu 12/256:30 amSJU - SEA
2 stops14h 03mDelta
Deal found 12/13$724
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:00 amSEA - SJU
2 stops18h 11mUnited Airlines
Fri 1/92:05 amSJU - SEA
1 stop13h 01mUnited Airlines
Deal found 12/14$727
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:45 amSEA - SJU
1 stop10h 50mMultiple Airlines
Mon 12/226:00 amSJU - SEA
2 stops22h 42mMultiple Airlines
Deal found 12/14$733
This Southwest deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:40 amSEA - SJU
2 stops13h 40mSouthwest
Thu 12/183:30 pmSJU - SEA
2 stops13h 05mSouthwest
Deal found 12/12$737
This Delta deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:20 amSEA - SJU
1 stop12h 39mDelta
Thu 12/254:45 pmSJU - SEA
1 stop10h 46mDelta
Deal found 12/14$749
This American Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:23 amSEA - SJU
1 stop13h 59mAmerican Airlines
Sat 1/106:00 amSJU - SEA
1 stop20h 20mAmerican Airlines
Deal found 12/13$752
This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/137:29 pmSEA - BQN
2 stops24h 28mUnited Airlines
Fri 12/191:09 amBQN - SEA
1 stop14h 08mUnited Airlines
Deal found 12/13$1,179
This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:30 amSEA - BQN
2 stops14h 27mUnited Airlines
Sat 12/271:09 amBQN - SEA
2 stops26h 03mUnited Airlines
Deal found 12/13$1,294
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:02 amSEA - BQN
2 stops14h 55mUnited Airlines
Fri 12/261:09 amBQN - SEA
1 stop14h 08mUnited Airlines
Deal found 12/14$1,344

Find flight deals from Seattle to Puerto Rico

Keep the following information in mind while searching for Seattle to Puerto Rico flight deals. Data was last updated December 15, 2025.

Round-trip from

$363
(Delta)

One-way from

$131
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$804
From Seattle/Tacoma Intl to Puerto Rico
Search Deals
One-way flight from Seattle/Tacoma Intl to Puerto Rico
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Puerto Rico that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from Seattle to Puerto Rico that are best for you.

Fly from

Seattle

Fly to

Puerto Rico

Route

Depart

Return

Price

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 2/2

7:00 pm-1:06 pm

2 stops14h 06m

San Juan Luis Munoz Marin Intl

Fri 2/13

3:55 pm-11:12 pm

1 stop11h 17m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 1/21

7:00 am-12:36 am

2 stops13h 36m

San Juan Luis Munoz Marin Intl

Wed 1/28

8:35 am-4:01 pm

1 stop11h 26m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 2/16

9:55 pm-1:05 pm

1 stop11h 10m

San Juan Luis Munoz Marin Intl

Mon 2/23

7:30 am-12:09 am

2 stops20h 39m

$429

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 1/17

12:35 pm-6:11 am

2 stops13h 36m

San Juan Luis Munoz Marin Intl

Tue 1/20

8:35 am-4:01 pm

1 stop11h 26m

$444

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 2/14

5:30 am-9:12 pm

2 stops11h 42m

San Juan Luis Munoz Marin Intl

Tue 2/24

3:10 pm-10:05 pm

1 stop10h 55m

$444

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 2/16

9:55 pm-1:05 pm

1 stop11h 10m

San Juan Luis Munoz Marin Intl

Fri 2/20

3:10 pm-10:05 pm

1 stop10h 55m

$444

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 2/14

5:30 am-9:12 pm

2 stops11h 42m

San Juan Luis Munoz Marin Intl

Mon 2/23

7:30 am-12:09 am

2 stops20h 39m

$444

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 2/14

5:30 am-9:12 pm

2 stops11h 42m

San Juan Luis Munoz Marin Intl

Fri 2/20

3:10 pm-10:05 pm

1 stop10h 55m

$444

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 1/13

5:00 am-12:36 am

2 stops15h 36m

San Juan Luis Munoz Marin Intl

Wed 1/14

7:45 am-7:55 pm

2 stops16h 10m

$448

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Tue 1/6

7:00 am-11:57 pm

1 stop12h 57m

Aguadilla Borinquen

Mon 1/12

1:09 am-4:01 pm

2 stops18h 52m

$449

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 33 results
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Best time to book a flight from Seattle to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Puerto Rico

What is the cheapest month to book a flight from Seattle to Puerto Rico?

Currently, March is the cheapest month in which you can book a flight from Seattle to Puerto Rico (average of $311). Flying from Seattle to Puerto Rico in July is currently the most expensive (average of $476). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to PR?

Find hourly flight availability from Seattle to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

When flying from Seattle to Puerto Rico, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 47% versus a flight in the morning.

What is the cheapest day to fly from Seattle to Puerto Rico?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Puerto Rico. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Puerto Rico flight should consider departing on Sunday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated December 15, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Seattle to Puerto Rico. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,092 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,051 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
JetBlue
7.2
Good
2,895 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Seattle to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Puerto Rico?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Puerto Rico. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How long is the flight from Seattle to Puerto Rico?

    There are many flights that can get you from Seattle to Puerto Rico in 13h 36m. Fly via Delta or United Airlines to get the fastest option. There are 3723 mi between Seattle and Puerto Rico. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Seattle to Puerto Rico one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $168. Users have also found prices from $170 and $202 on JetBlue and United Airlines, respectively.

  • What are the most popular routes from Seattle to Puerto Rico?

    The most popular flight routes from Seattle to Puerto Rico are Seattle/Tacoma Intl - San Juan Luis Munoz Marin Intl, Seattle/Tacoma Intl - Aguadilla Borinquen and Seattle/Tacoma Intl - Culebra.

  • Can I find deals for flights from Seattle to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Seattle to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Puerto Rico.

  • Can I find deals for business class flights from Seattle to Puerto Rico?

    Yes. Cheapflights offers flight deals from Seattle to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Puerto Rico?

    Currently, March is the cheapest month in which you can book a flight from Seattle to Puerto Rico (average of $311). Flying from Seattle to Puerto Rico in July is currently the most expensive (average of $476). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Seattle to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Portland to Willemstad flights
Portland to Kingston flights
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Seattle to Fort-de-France flights

Top 9 airlines flying from Seattle to Puerto Rico

Discover the top 9 airlines that operate flights from Seattle to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$175Average$476FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$214Average$341FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$327Average$544FlexibilityNo cancel feeOn-time62%
DeltaCheapest$357Average$608FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$363Average$629FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$363Average$574FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$521Average$695FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$544Average$828FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$678Average$880FlexibilityNo cancel feeOn-time75%

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