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Puerto Rico

$181+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$424
(FlightHub)

One-way from

$181
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$650
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. 4% potential increase in price ($25 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 June 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 June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/83:58 pmSEA - SJU
2 stops16h 34mSpirit Airlines
Fri 7/111:37 amSJU - SEA
2 stops17h 48mSpirit Airlines
Deal found 6/9$424
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:00 amSEA - SJU
1 stop9h 30mUnited Airlines
Wed 10/151:05 amSJU - SEA
1 stop12h 42mUnited Airlines
Deal found 6/12$434
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/169:10 pmSEA - SJU
1 stop12h 35mSouthwest
Fri 9/198:15 amSJU - SEA
2 stops12h 45mSouthwest
Deal found 6/11$436
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2512:45 amSEA - SJU
2 stops11h 15mAmerican Airlines
Mon 9/16:00 amSJU - SEA
1 stop21h 14mAmerican Airlines
Deal found 6/10$451
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/412:13 pmSEA - SJU
2 stops21h 15mFrontier
Wed 8/612:59 amSJU - SEA
2 stops16h 07mFrontier
Deal found 6/11$456
This eDestinos deal was found by Cheapflights users on 6/10. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:17 amSEA - SJU
3 stops38h 37mMultiple Airlines
Sat 8/306:55 pmSJU - SEA
3 stops30h 48mMultiple Airlines
Deal found 6/10$475
This JetBlue deal was found by Cheapflights users on 6/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1411:40 pmSEA - SJU
1 stop12h 14mJetBlue
Sun 9/2112:50 pmSJU - SEA
1 stop12h 20mJetBlue
Deal found 6/12$496
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:00 amSEA - BQN
2 stops41h 25mFrontier
Sat 9/203:20 amBQN - SEA
2 stops43h 19mFrontier
Deal found 6/11$516
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2212:40 amSEA - SJU
2 stops18h 28mDelta
Tue 9/307:30 amSJU - SEA
1 stop15h 06mDelta
Deal found 6/12$528
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 9/135:35 pmSEA - BQN
2 stops26h 34mUnited Airlines
Sat 9/2012:15 amBQN - SEA
1 stop13h 30mUnited Airlines
Deal found 6/10$555
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/263:58 pmSEA - CPX
3 stops19h 46mMultiple Airlines
Mon 6/3012:31 pmCPX - SEA
3 stops29h 32mMultiple Airlines
Deal found 6/11$844
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2710:46 pmSEA - CPX
2 stops15h 05mUnited Airlines
Tue 7/110:13 amCPX - SEA
2 stops15h 46mUnited Airlines
Deal found 6/12$1,020

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 June 12, 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 7/8

3:58 pm-11:32 am

2 stops16h 34m

San Juan Luis Munoz Marin Intl

Fri 7/11

1:37 am-4:25 pm

2 stops17h 48m

$424

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 10/7

5:00 am-5:30 pm

1 stop9h 30m

San Juan Luis Munoz Marin Intl

Wed 10/15

1:05 am-10:47 am

1 stop12h 42m

$434

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 9/16

9:10 pm-12:45 pm

1 stop12h 35m

San Juan Luis Munoz Marin Intl

Fri 9/19

8:15 am-6:00 pm

2 stops12h 45m

$436

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 8/25

12:45 am-3:00 pm

2 stops11h 15m

San Juan Luis Munoz Marin Intl

Mon 9/1

6:00 am-12:14 am

1 stop21h 14m

$451

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 8/4

12:13 pm-12:28 pm

2 stops21h 15m

San Juan Luis Munoz Marin Intl

Wed 8/6

12:59 am-2:06 pm

2 stops16h 07m

$456

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 8/22

6:17 am-11:54 pm

3 stops38h 37m

San Juan Luis Munoz Marin Intl

Sat 8/30

6:55 pm-10:43 pm

3 stops30h 48m

$475

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 9/14

11:40 pm-2:54 pm

1 stop12h 14m

San Juan Luis Munoz Marin Intl

Sun 9/21

12:50 pm-10:10 pm

1 stop12h 20m

$496

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Sat 9/13

6:00 am-2:25 am

2 stops41h 25m

Aguadilla Borinquen

Sat 9/20

3:20 am-7:39 pm

2 stops43h 19m

$516

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 9/22

12:40 am-10:08 pm

2 stops18h 28m

San Juan Luis Munoz Marin Intl

Tue 9/30

7:30 am-7:36 pm

1 stop15h 06m

$528

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Sat 9/13

5:35 pm-11:09 pm

2 stops26h 34m

Aguadilla Borinquen

Sat 9/20

12:15 am-10:45 am

1 stop13h 30m

$555

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 June 12, 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.

Rainfall in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Puerto Rico ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Puerto Rico when rainfall is around 2.2 in.

Temperature in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Puerto Rico, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Seattle to Puerto Rico by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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 $181. Users have also found prices from $189 and $219 on American Airlines and JetBlue, 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 - Culebra and Seattle/Tacoma Intl - Aguadilla Borinquen.

  • 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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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$194Average$792FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$233Average$341FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$286Average$562FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$306Average$621FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$330Average$567FlexibilityNo cancel feeOn-time71%
DeltaCheapest$413Average$729FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$447Average$885FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$466Average$637FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$490Average$815FlexibilityNo cancel feeOn-time75%

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