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Puerto Rico

$146+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$361
(Trip.com)

One-way from

$146
(CheapOair)

Popular in

December

Cheapest in

January

Average price

$705
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. 2% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com 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
Tue 9/301:25 pmSJU - SEA
1 stop11h 55mJetBlue
Deal found 7/30$361
This American Airlines deal was found by Cheapflights users on 7/28. 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 9/228:18 pmSEA - SJU
1 stop18h 56mAmerican Airlines
Wed 9/246:10 amSJU - SEA
1 stop20h 49mAmerican Airlines
Deal found 7/28$372
This Delta deal was found by Cheapflights users on 7/29. 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 10/216:00 amSEA - SJU
1 stop12h 59mDelta
Fri 10/247:15 amSJU - SEA
1 stop11h 35mDelta
Deal found 7/29$387
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/227:34 pmSEA - SJU
2 stops15h 11mUnited Airlines
Sun 9/281:05 amSJU - SEA
1 stop12h 42mUnited Airlines
Deal found 7/28$398
This Southwest deal was found by Cheapflights users on 7/29. 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.
Wed 12/35:40 amSEA - SJU
2 stops13h 40mSouthwest
Tue 12/92:05 pmSJU - SEA
2 stops12h 50mSouthwest
Deal found 7/29$436
This Sun Country Air deal was found by Cheapflights users on 7/30. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:16 pmSEA - SJU
1 stop17h 58mSun Country Air
Sat 11/85:15 pmSJU - SEA
1 stop28h 00mSun Country Air
Deal found 7/30$443
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2211:55 pmSEA - SJU
3 stops21h 02mMultiple Airlines
Sat 8/3010:10 amSJU - SEA
3 stops25h 18mMultiple Airlines
Deal found 7/28$482
This Frontier deal was found by Cheapflights users on 7/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/88:01 pmSEA - SJU
2 stops21h 28mFrontier
Sat 8/1612:08 pmSJU - SEA
2 stops14h 34mFrontier
Deal found 7/27$501
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/135:14 pmSEA - BQN
2 stops26h 55mUnited Airlines
Sat 9/2012:15 amBQN - SEA
2 stops14h 16mUnited Airlines
Deal found 7/28$517
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1811:20 pmSEA - BQN
2 stops19h 44mJetBlue
Fri 8/2910:59 pmBQN - SEA
2 stops24h 26mJetBlue
Deal found 7/29$615
This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1812:13 pmSEA - BQN
2 stops35h 31mFrontier
Fri 8/293:39 amBQN - SEA
2 stops32h 55mFrontier
Deal found 7/29$692
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/147:10 amSEA - CPX
2 stops30h 41mUnited Airlines
Mon 8/1810:13 amCPX - SEA
2 stops15h 51mUnited Airlines
Deal found 7/30$1,595

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 July 30, 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

Tue 9/23

11:59 pm-4:43 pm

1 stop13h 44m

San Juan Luis Munoz Marin Intl

Tue 9/30

1:25 pm-10:20 pm

1 stop11h 55m

$361

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 9/22

8:18 pm-6:14 pm

1 stop18h 56m

San Juan Luis Munoz Marin Intl

Wed 9/24

6:10 am-11:59 pm

1 stop20h 49m

$372

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 10/21

6:00 am-9:59 pm

1 stop12h 59m

San Juan Luis Munoz Marin Intl

Fri 10/24

7:15 am-3:50 pm

1 stop11h 35m

$387

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 9/22

11:54 pm-2:44 pm

1 stop11h 50m

San Juan Luis Munoz Marin Intl

Sun 9/28

1:05 am-10:47 am

1 stop12h 42m

$398

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 9/17

5:35 am-10:30 pm

2 stops13h 55m

San Juan Luis Munoz Marin Intl

Wed 9/24

11:50 am-8:55 pm

2 stops12h 05m

$451

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 8/22

11:55 pm-11:57 pm

3 stops21h 02m

San Juan Luis Munoz Marin Intl

Sat 8/30

10:10 am-8:28 am

3 stops25h 18m

$482

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 8/8

8:01 pm-8:29 pm

2 stops21h 28m

San Juan Luis Munoz Marin Intl

Sat 8/16

12:08 pm-11:42 pm

2 stops14h 34m

$501

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Sat 9/13

5:14 pm-11:09 pm

2 stops26h 55m

Aguadilla Borinquen

Sat 9/20

12:15 am-10:45 am

1 stop13h 30m

$517

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Mon 8/18

11:20 pm-10:04 pm

2 stops19h 44m

Aguadilla Borinquen

Fri 8/29

10:59 pm-8:25 pm

2 stops24h 26m

$615

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Mon 8/18

12:13 pm-2:44 am

2 stops35h 31m

Aguadilla Borinquen

Fri 8/29

3:39 am-9:34 am

2 stops32h 55m

$692

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 22 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 July 30, 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 July 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $146. Users have also found prices from $189 and $210 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, 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.
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Seattle to Punta Cana flights
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Pasco to Luis Munoz Marin Intl flights
Seattle to St. John's flights
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Portland to St. George's flights
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Portland to George Town flights
Seattle to Fort-de-France flights
Seattle to Georgetown flights
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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$175Average$818FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$233Average$341FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$286Average$598FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$306Average$622FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$336Average$578FlexibilityNo cancel feeOn-time71%
DeltaCheapest$365Average$741FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$447Average$885FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$490Average$818FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$521Average$670FlexibilityNo cancel feeOn-time63%

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