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Puerto Rico

$142+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Round-trip from

$350
(Mytrip)

One-way from

$142
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$562
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. 5% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/26. 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 4/188:56 pmSEA - SJU
2 stops19h 44mSpirit Airlines
Fri 4/2510:27 amSJU - SEA
3 stops28h 08mSpirit Airlines
Deal found 3/26$350
This United Airlines deal was found by Cheapflights users on 3/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:03 amSEA - SJU
1 stop10h 35mUnited Airlines
Tue 10/73:56 pmSJU - SEA
1 stop11h 12mUnited Airlines
Deal found 3/27$353
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:59 pmSEA - SJU
2 stops13h 21mAmerican Airlines
Tue 9/301:55 pmSJU - SEA
2 stops12h 01mAmerican Airlines
Deal found 3/27$357
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/186:00 amSEA - SJU
1 stop11h 23mDelta
Fri 4/256:15 amSJU - SEA
2 stops17h 35mDelta
Deal found 3/27$392
This JetBlue deal was found by Cheapflights users on 3/25. 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.
Fri 5/211:35 amSEA - SJU
1 stop10h 54mJetBlue
Fri 5/911:58 amSJU - SEA
1 stop11h 56mJetBlue
Deal found 3/25$409
This Mytrip deal was found by Cheapflights users on 3/25. 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.
Mon 4/142:30 pmSEA - SJU
3 stops30h 09mMultiple Airlines
Fri 4/185:10 pmSJU - SEA
2 stops27h 49mMultiple Airlines
Deal found 3/25$416
This Sun Country Air deal was found by Cheapflights users on 3/27. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/186:27 pmSEA - SJU
1 stop17h 38mSun Country Air
Sat 4/264:05 pmSJU - SEA
1 stop28h 07mSun Country Air
Deal found 3/27$522
This Southwest deal was found by Cheapflights users on 3/26. 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 5/285:00 amSEA - SJU
2 stops14h 30mSouthwest
Tue 6/31:55 pmSJU - SEA
2 stops12h 55mSouthwest
Deal found 3/26$531
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Sun 3/305:15 amSEA - BQN
2 stops14h 54mUnited Airlines
Mon 3/3112:15 amBQN - SEA
1 stop13h 53mUnited Airlines
Deal found 3/26$715
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/113:20 pmSEA - CPX
3 stops20h 19mMultiple Airlines
Sun 5/185:41 pmCPX - SEA
3 stops33h 29mMultiple Airlines
Deal found 3/27$743
This United Airlines deal was found by Cheapflights users on 3/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1111:59 pmSEA - CPX
2 stops14h 22mUnited Airlines
Sun 5/1810:48 amCPX - SEA
2 stops13h 14mUnited Airlines
Deal found 3/27$1,276

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 March 28, 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

Fri 4/18

8:56 pm-7:40 pm

2 stops19h 44m

San Juan Luis Munoz Marin Intl

Fri 4/25

10:27 am-11:35 am

3 stops28h 08m

$350

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 4/26

4:27 pm-5:00 am

1 stop9h 33m

San Juan Luis Munoz Marin Intl

Sat 5/3

7:15 am-9:04 pm

1 stop16h 49m

$357

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 4/18

6:00 am-8:23 pm

1 stop11h 23m

San Juan Luis Munoz Marin Intl

Fri 4/25

6:15 am-8:50 pm

2 stops17h 35m

$392

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/2

11:35 am-1:29 am

1 stop10h 54m

San Juan Luis Munoz Marin Intl

Fri 5/9

11:58 am-8:54 pm

1 stop11h 56m

$409

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 4/14

2:30 pm-11:39 pm

3 stops30h 09m

San Juan Luis Munoz Marin Intl

Fri 4/18

5:10 pm-5:59 pm

2 stops27h 49m

$416

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 4/21

11:59 pm-3:40 pm

1 stop12h 41m

San Juan Luis Munoz Marin Intl

Thu 4/24

1:40 pm-11:00 pm

1 stop12h 20m

$430

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 4/18

6:27 pm-3:05 pm

1 stop17h 38m

San Juan Luis Munoz Marin Intl

Sat 4/26

4:05 pm-5:12 pm

1 stop28h 07m

$522

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 5/28

5:00 am-10:30 pm

2 stops14h 30m

San Juan Luis Munoz Marin Intl

Tue 6/3

1:55 pm-11:50 pm

2 stops12h 55m

$531

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Sun 3/30

5:15 am-11:09 pm

2 stops14h 54m

Aguadilla Borinquen

Mon 3/31

12:15 am-11:08 am

1 stop13h 53m

$715

SeattleCulebra

SEA - CPX

SEACPX

Seattle/Tacoma Intl

Sun 5/11

3:20 pm-2:39 pm

3 stops20h 19m

Culebra

Sun 5/18

5:41 pm-12:10 am

3 stops33h 29m

$743

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 20 results
1
2

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 December is currently the most expensive (average of $336). 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 March 28, 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 March 28, 2025.
Get a feel of what it's like to fly with Southwest, Delta and United Airlines 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.
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,897 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,923 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 $142. Users have also found prices from $179 and $183 on Delta and American 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 December is currently the most expensive (average of $336). 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 St. John'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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$233Average$346FlexibilityNo cancel feeOn-time65%
FrontierCheapest$250Average$581FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$286Average$524FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$306Average$625FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$326Average$550FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$425Average$797FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$447Average$882FlexibilityNo cancel feeOn-time83%
DeltaCheapest$454Average$722FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$584Average$707FlexibilityNo cancel feeOn-time63%
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