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$137+ Cheap flights from Washington 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
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Cheap flight deals from Washington to Puerto Rico

Keep the following information in mind while searching for Washington to Puerto Rico flight deals. Data was last updated April 2, 2025.

Round-trip from

$347
(Mytrip)

One-way from

$137
(eDestinos)

Popular in

December

Cheapest in

September

Average price

$589
From Washington to Puerto Rico
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One-way flight from Washington to Puerto Rico
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($34 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 Washington to Puerto Rico

Cheapest flights from Washington to Puerto Rico
Explore the most affordable flight options available from Washington to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This Mytrip deal was found by Cheapflights users on 4/2. 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.
Sat 5/103:20 pmSEA - SJU
2 stops18h 24mSpirit Airlines
Fri 5/168:12 pmSJU - SEA
3 stops30h 58mSpirit Airlines
Deal found 4/2$347
This Mytrip deal was found by Cheapflights users on 4/1. 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 4/1110:25 amPDX - SJU
2 stops30h 15mSpirit Airlines
Tue 4/225:10 pmSJU - PDX
2 stops23h 27mSpirit Airlines
Deal found 4/1$353
This United Airlines deal was found by Cheapflights users on 4/1. 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 9/1611:54 pmSEA - SJU
1 stop11h 50mUnited Airlines
Tue 9/237:00 amSJU - SEA
1 stop13h 36mUnited Airlines
Deal found 4/1$357
This United Airlines deal was found by Cheapflights users on 4/2. 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 9/1910:00 amPDX - BQN
1 stop10h 09mUnited Airlines
Sun 9/2112:15 amBQN - PDX
1 stop11h 38mUnited Airlines
Deal found 4/2$365
This American Airlines deal was found by Cheapflights users on 4/2. 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.
Sat 4/2611:52 pmPDX - SJU
2 stops11h 53mAmerican Airlines
Thu 5/16:21 amSJU - PDX
1 stop20h 07mAmerican Airlines
Deal found 4/2$369
This Delta deal was found by Cheapflights users on 4/2. 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 12/27:00 amPDX - SJU
1 stop12h 50mDelta
Fri 12/123:25 pmSJU - PDX
1 stop10h 29mDelta
Deal found 4/2$379
This American Airlines deal was found by Cheapflights users on 4/1. 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 4/2810:10 pmSEA - SJU
1 stop13h 25mAmerican Airlines
Wed 5/76:10 amSJU - SEA
1 stop19h 57mAmerican Airlines
Deal found 4/1$392
This United Airlines deal was found by Cheapflights users on 4/2. 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 12/410:56 pmPDX - SJU
1 stop11h 44mUnited Airlines
Tue 12/92:05 amSJU - PDX
2 stops13h 30mUnited Airlines
Deal found 4/2$394
This Mytrip deal was found by Cheapflights users on 4/1. 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 4/1311:59 pmPDX - SJU
2 stops14h 34mMultiple Airlines
Sat 4/1912:54 amSJU - PDX
2 stops35h 18mMultiple Airlines
Deal found 4/1$397
This Delta deal was found by Cheapflights users on 4/1. 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.
Sun 4/277:25 pmGEG - SJU
2 stops14h 45mDelta
Tue 5/66:35 amSJU - GEG
2 stops17h 09mDelta
Deal found 4/1$405
This Mytrip deal was found by Cheapflights users on 4/1. 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 5/96:33 pmSEA - SJU
1 stop17h 38mMultiple Airlines
Fri 5/161:33 amSJU - SEA
2 stops25h 37mMultiple Airlines
Deal found 4/1$455
This Southwest deal was found by Cheapflights users on 3/31. 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 11/55:40 amSEA - SJU
2 stops13h 40mSouthwest
Tue 11/186:40 amSJU - SEA
2 stops16h 00mSouthwest
Deal found 3/31$461

Cheapflights Fare Finder

Customize your flight search to find flights from Washington 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 2, 2025.
Use the filters below to find and compare flights from Washington to Puerto Rico that are best for you.

Fly from

Washington

Fly to

Puerto Rico

Route

Depart

Return

Price

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 5/10

3:20 pm-12:44 pm

2 stops18h 24m

San Juan Luis Munoz Marin Intl

Fri 5/16

8:12 pm-12:10 am

3 stops30h 58m

$347

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 9/16

11:10 pm-1:45 pm

1 stop11h 35m

San Juan Luis Munoz Marin Intl

Mon 9/22

1:05 am-1:27 pm

2 stops15h 22m

$357

PortlandAguadilla

PDX - BQN

PDXBQN

Portland

Fri 9/19

10:00 am-11:09 pm

1 stop10h 09m

Aguadilla Borinquen

Sun 9/21

12:15 am-8:53 am

1 stop11h 38m

$365

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sat 4/26

11:52 pm-2:45 pm

2 stops11h 53m

San Juan Luis Munoz Marin Intl

Thu 5/1

6:21 am-11:28 pm

1 stop20h 07m

$369

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sun 5/11

1:37 pm-12:44 pm

3 stops44h 07m

San Juan Luis Munoz Marin Intl

Thu 5/15

1:33 am-12:42 pm

3 stops38h 09m

$373

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 9/16

7:00 am-10:42 pm

1 stop12h 42m

San Juan Luis Munoz Marin Intl

Wed 10/1

1:13 pm-11:29 pm

1 stop13h 16m

$379

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 4/28

10:10 pm-2:35 pm

1 stop13h 25m

San Juan Luis Munoz Marin Intl

Wed 5/7

6:10 am-11:07 pm

1 stop19h 57m

$392

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sun 4/13

11:59 pm-5:33 pm

2 stops14h 34m

San Juan Luis Munoz Marin Intl

Sat 4/19

12:54 am-9:12 am

2 stops35h 18m

$397

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sun 4/27

10:45 pm-2:19 pm

1 stop12h 34m

San Juan Luis Munoz Marin Intl

Tue 5/6

6:35 am-11:00 pm

2 stops19h 25m

$405

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/9

6:33 pm-3:11 pm

1 stop17h 38m

San Juan Luis Munoz Marin Intl

Fri 5/16

1:33 am-12:10 am

2 stops25h 37m

$455

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 45 results
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Best time to book a flight from Washington to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Washington 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 Washington to Puerto Rico

What is the cheapest month to book a flight from State of Washington to Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from State of Washington to Puerto Rico (average of $254). Flying from State of Washington 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 WA to PR?

Find hourly flight availability from Washington 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 2, 2025.

When flying from State of Washington to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 2, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Washington to Puerto Rico to help guide your decision. 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
9,820 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,820 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,898 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,616 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Washington 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 are the cheapest airlines to fly from State of Washington to Puerto Rico one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $137. Delta flights start at $179 while deals on American Airlines start at $185 one-way.

  • Can I find deals for flights from Washington to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Washington to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Puerto Rico.

  • Can I find deals for business class flights from Washington to Puerto Rico?

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from State of Washington to Puerto Rico (average of $254). Flying from State of Washington 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington 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 Washington to Puerto Rico

Discover the top 9 airlines that operate flights from Washington 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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$199Average$584FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$233Average$347FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$286Average$526FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$296Average$708FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$326Average$662FlexibilityNo cancel feeOn-time71%
DeltaCheapest$384Average$606FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$425Average$815FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$447Average$882FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$484Average$662FlexibilityNo cancel feeOn-time63%

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