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Puerto Rico

$166+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$363
(American Airlines)

One-way from

$166
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$474
From Seattle/Tacoma Intl to Puerto Rico
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One-way flight from Seattle/Tacoma Intl to Puerto Rico
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Highest demand for flights based on searches. 3% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/9. 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.
Mon 10/207:37 pmSEA - SJU
2 stops13h 57mUnited Airlines
Wed 10/221:30 pmSJU - SEA
1 stop11h 47mUnited Airlines
Deal found 9/9$363
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 9/307:37 pmSEA - SJU
2 stops13h 57mUnited Airlines
Thu 10/21:05 amSJU - SEA
2 stops13h 26mUnited Airlines
Deal found 9/9$368
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:59 pmSEA - SJU
1 stop18h 25mJetBlue
Tue 10/76:00 amSJU - SEA
1 stop19h 36mJetBlue
Deal found 9/10$370
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Mon 10/138:49 pmSEA - SJU
1 stop12h 55mAmerican Airlines
Sun 10/197:00 amSJU - SEA
1 stop19h 35mAmerican Airlines
Deal found 9/9$371
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 9/305:00 amSEA - SJU
1 stop9h 30mUnited Airlines
Tue 10/287:30 amSJU - SEA
2 stops17h 03mUnited Airlines
Deal found 9/9$373
This JetBlue deal was found by Cheapflights users on 9/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:59 pmSEA - SJU
1 stop13h 44mJetBlue
Sat 10/41:29 pmSJU - SEA
1 stop11h 55mJetBlue
Deal found 9/9$374
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/18:51 pmSEA - SJU
1 stop18h 24mAmerican Airlines
Tue 10/77:00 amSJU - SEA
2 stops12h 54mAmerican Airlines
Deal found 9/9$380
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1011:40 pmSEA - SJU
1 stop22h 17mJetBlue
Wed 10/156:00 amSJU - SEA
1 stop19h 21mJetBlue
Deal found 9/10$382
This JetBlue deal was found by Cheapflights users on 9/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:59 pmSEA - SJU
1 stop13h 44mJetBlue
Fri 10/31:29 pmSJU - SEA
1 stop11h 55mJetBlue
Deal found 9/9$385
This JetBlue deal was found by Cheapflights users on 9/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/411:59 pmSEA - SJU
1 stop11h 55mJetBlue
Sat 10/111:25 pmSJU - SEA
1 stop12h 11mJetBlue
Deal found 9/9$391
This United Airlines deal was found by Cheapflights users on 9/11. 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 11/125:00 amSEA - BQN
2 stops14h 57mUnited Airlines
Mon 11/171:09 amBQN - SEA
2 stops16h 45mUnited Airlines
Deal found 9/11$467
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/137:00 amSEA - BQN
2 stops12h 57mUnited Airlines
Mon 11/171:09 amBQN - SEA
2 stops16h 29mUnited Airlines
Deal found 9/10$541

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 September 11, 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

Wed 10/15

5:00 am-5:30 pm

1 stop9h 30m

San Juan Luis Munoz Marin Intl

Tue 11/11

2:05 am-1:54 pm

2 stops15h 49m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 9/30

5:31 pm-12:00 pm

2 stops15h 29m

San Juan Luis Munoz Marin Intl

Fri 10/3

2:00 pm-9:34 pm

1 stop10h 34m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 11/1

11:59 pm-3:40 pm

1 stop12h 41m

San Juan Luis Munoz Marin Intl

Fri 11/7

2:05 am-11:11 am

1 stop13h 06m

$380

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 10/3

6:55 pm-12:00 pm

2 stops14h 05m

San Juan Luis Munoz Marin Intl

Wed 10/8

1:05 am-10:47 am

1 stop12h 42m

$453

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 10/4

10:54 pm-1:45 pm

1 stop11h 51m

San Juan Luis Munoz Marin Intl

Fri 10/10

1:05 am-10:27 am

1 stop12h 22m

$453

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 10/7

10:45 pm-1:45 pm

1 stop12h 00m

San Juan Luis Munoz Marin Intl

Tue 10/14

1:05 am-2:24 pm

2 stops16h 19m

$453

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 10/25

10:54 pm-1:40 pm

1 stop11h 46m

San Juan Luis Munoz Marin Intl

Tue 11/4

2:05 am-11:11 am

1 stop13h 06m

$453

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Wed 11/12

5:00 am-11:57 pm

2 stops14h 57m

Aguadilla Borinquen

Mon 11/17

1:09 am-9:33 pm

3 stops24h 24m

$467

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Tue 9/30

5:00 am-11:09 pm

2 stops15h 09m

Aguadilla Borinquen

Mon 10/6

12:15 am-10:47 am

1 stop13h 32m

$467

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Thu 11/13

7:00 am-11:57 pm

2 stops12h 57m

Aguadilla Borinquen

Mon 11/17

1:09 am-11:11 am

1 stop14h 02m

$541

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 35 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, September is the cheapest month in which you can book a flight from Seattle to Puerto Rico (average of $254). Flying from Seattle to Puerto Rico in June is currently the most expensive (average of $339). 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 September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Puerto Rico as you normally would.

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 September 11, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American 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.
Delta
8.0
Very good
7,960 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.2
Good
2,913 reviews
Delta
8.0
Very good
7,960 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,023 reviews
Delta
8.0
Very good
7,960 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 9h 30m. Fly via United Airlines to get the fastest option. There are 3723 mi between Seattle and Puerto Rico.

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

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $171. Users have also found prices from $182 and $182 on American Airlines and Delta, 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, September is the cheapest month in which you can book a flight from Seattle to Puerto Rico (average of $254). Flying from Seattle to Puerto Rico in June is currently the most expensive (average of $339). 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.
Seattle to Luis Munoz Marin Intl flights
Portland to Luis Munoz Marin Intl flights
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Portland to Saint Thomas Island flights
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Portland to Santiago de los Caballeros flights
Portland to Santo Domingo flights
Seattle to Road Town flights
Portland to Christiansted flights
Portland to Providenciales flights
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Pasco to Luis Munoz Marin Intl flights
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Portland to Castries flights
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Seattle to Puerto Plata flights
Seattle to St. John's flights
Portland to Willemstad flights
Portland to Bridgetown flights
Spokane to Montego Bay flights
Portland to Simpson Bay flights
Seattle to St. George's flights
Portland to Road Town flights
Portland to Kingston flights
Seattle to Marsh Harbour flights
Seattle to Freeport flights
Spokane to Punta Cana flights
Portland to Kralendijk flights
Spokane to Nassau flights
Spokane to Oranjestad flights
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Portland to St. George's 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$194Average$796FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$233Average$341FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$306Average$628FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$326Average$565FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$352Average$586FlexibilityNo cancel feeOn-time71%
DeltaCheapest$360Average$732FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$447Average$818FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$521Average$695FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$678Average$880FlexibilityNo cancel feeOn-time75%

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