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Puerto Rico

$102+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Round-trip from

$357
(American Airlines)

One-way from

$102
(eDestinos)

Popular in

December

Cheapest in

September

Average price

$590
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. 6% potential increase in price ($37 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 April 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 April 29, 2025.

This Delta deal was found by Cheapflights users on 4/27. 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.
Sat 11/19:20 pmSEA - SJU
1 stop12h 27mDelta
Sat 11/83:28 pmSJU - SEA
1 stop10h 57mDelta
Deal found 4/27$357
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/233:20 pmSEA - SJU
2 stops20h 10mSpirit Airlines
Thu 5/2912:36 pmSJU - SEA
2 stops14h 34mSpirit Airlines
Deal found 4/28$360
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:55 pmSEA - SJU
2 stops13h 25mAmerican Airlines
Tue 9/3011:55 amSJU - SEA
2 stops14h 01mAmerican Airlines
Deal found 4/29$367
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2710:15 pmSEA - SJU
1 stop11h 19mUnited Airlines
Tue 6/37:45 amSJU - SEA
1 stop11h 35mUnited Airlines
Deal found 4/29$376
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2311:59 pmSEA - SJU
1 stop10h 48mMultiple Airlines
Wed 5/281:33 amSJU - SEA
2 stops25h 37mMultiple Airlines
Deal found 4/28$403
This JetBlue deal was found by Cheapflights users on 4/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1311:10 pmSEA - SJU
1 stop12h 46mJetBlue
Fri 6/2011:00 amSJU - SEA
1 stop11h 58mJetBlue
Deal found 4/29$460
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/38:05 amSEA - SJU
2 stops12h 00mSouthwest
Tue 7/86:30 amSJU - SEA
1 stop14h 10mSouthwest
Deal found 4/28$461
This Sun Country Air deal was found by Cheapflights users on 4/28. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/277:15 pmSEA - SJU
1 stop17h 01mSun Country Air
Sat 7/54:20 pmSJU - SEA
1 stop18h 42mSun Country Air
Deal found 4/28$549
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 5/145:15 amSEA - BQN
2 stops14h 54mUnited Airlines
Sat 5/1712:15 amBQN - SEA
2 stops16h 45mUnited Airlines
Deal found 4/28$707
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Tue 5/133:20 pmSEA - CPX
3 stops20h 19mMultiple Airlines
Sat 5/178:54 amCPX - SEA
3 stops18h 16mMultiple Airlines
Deal found 4/28$730
This CheapTickets deal was found by Cheapflights users on 4/29. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/138:08 amSEA - BQN
1 stop14h 51mMultiple Airlines
Thu 6/192:59 amBQN - SEA
1 stop13h 11mMultiple Airlines
Deal found 4/29$1,384
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 5/137:33 pmSEA - CPX
3 stops18h 48mUnited Airlines
Sat 5/1710:48 amCPX - SEA
2 stops15h 02mUnited Airlines
Deal found 4/28$1,557

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 April 29, 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

Sat 9/20

5:50 pm-2:19 pm

1 stop17h 29m

San Juan Luis Munoz Marin Intl

Sat 9/27

3:58 pm-12:33 am

1 stop11h 35m

$357

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/23

3:20 pm-2:30 pm

2 stops20h 10m

San Juan Luis Munoz Marin Intl

Thu 5/29

12:36 pm-12:10 am

2 stops14h 34m

$360

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 5/27

10:15 pm-12:34 pm

1 stop11h 19m

San Juan Luis Munoz Marin Intl

Tue 6/3

7:45 am-4:20 pm

1 stop11h 35m

$376

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/23

11:59 pm-1:47 pm

1 stop10h 48m

San Juan Luis Munoz Marin Intl

Wed 5/28

1:33 am-12:10 am

2 stops25h 37m

$403

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 6/13

11:10 pm-2:56 pm

1 stop12h 46m

San Juan Luis Munoz Marin Intl

Fri 6/20

11:00 am-7:58 pm

1 stop11h 58m

$460

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Thu 7/3

9:10 pm-12:40 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Tue 7/8

6:30 am-5:40 pm

1 stop14h 10m

$461

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Thu 5/29

7:00 pm-1:16 pm

2 stops15h 16m

San Juan Luis Munoz Marin Intl

Thu 6/5

12:50 pm-11:49 pm

1 stop13h 59m

$476

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 6/27

7:15 pm-3:16 pm

1 stop17h 01m

San Juan Luis Munoz Marin Intl

Sat 7/5

4:20 pm-8:02 am

1 stop18h 42m

$549

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Wed 5/14

5:15 am-11:09 pm

2 stops14h 54m

Aguadilla Borinquen

Sat 5/17

12:15 am-2:00 pm

2 stops16h 45m

$707

SeattleCulebra

SEA - CPX

SEACPX

Seattle/Tacoma Intl

Tue 5/13

3:20 pm-2:39 pm

3 stops20h 19m

Culebra

Sat 5/17

8:54 am-12:10 am

3 stops18h 16m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 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 April 29, 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 April 29, 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
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
JetBlue
7.3
Good
2,922 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 $102. Users have also found prices from $217 and $219 on Sun Country Air 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 - 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 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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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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$233Average$346FlexibilityNo cancel feeOn-time65%
FrontierCheapest$250Average$584FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$286Average$521FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$306Average$624FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$327Average$553FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$425Average$815FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$447Average$882FlexibilityNo cancel feeOn-time83%
DeltaCheapest$452Average$719FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$565Average$695FlexibilityNo cancel feeOn-time63%

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