HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$206+ Cheap flights from Seattle (SEA) to San Juan

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to San Juan with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Seattle/Tacoma Intl to San Juan are usually found in January or September, booked 21 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Seattle to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Popular in

December

Cheapest in

January

Round-trip from

$367
(eDestinos)

One-way from

$206
(FlightHub)
High demand for flights, 26% potential price rise
Search Deals
Best time to find cheap flights, 28% potential price drop
Search Deals
From Seattle/Tacoma Intl to San Juan
Search Deals
One-way flight from Seattle/Tacoma Intl to San Juan
Search Deals

Find flight deals from Seattle to San Juan

Cheapest flights from Seattle to San Juan
Explore the most affordable flight options available from Seattle to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This FlightHub deal was found by Cheapflights users on 11/20. 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.
Wed 12/44:00 pmSEA - SJU
2 stops25h 49mSpirit Airlines
Sat 12/142:17 pmSJU - SEA
2 stops25h 38mSpirit Airlines
Deal found 11/20$374
This Mytrip deal was found by Cheapflights users on 11/20. 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.
Wed 12/115:15 amSEA - SJU
3 stops32h 28mMultiple Airlines
Wed 12/182:44 pmSJU - SEA
3 stops35h 59mMultiple Airlines
Deal found 11/20$376
This United Airlines deal was found by Cheapflights users on 11/20. 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 12/115:00 amSEA - SJU
1 stop9h 25mUnited Airlines
Mon 1/272:05 amSJU - SEA
2 stops18h 11mUnited Airlines
Deal found 11/20$430
This American Airlines deal was found by Cheapflights users on 11/20. 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.
Fri 12/69:00 amSEA - SJU
1 stop10h 50mAmerican Airlines
Wed 12/118:15 amSJU - SEA
1 stop17h 04mAmerican Airlines
Deal found 11/20$465
This Delta deal was found by Cheapflights users on 11/20. 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 12/107:05 pmSEA - SJU
2 stops15h 10mDelta
Tue 12/177:30 amSJU - SEA
1 stop13h 42mDelta
Deal found 11/20$492
This Sun Country Air deal was found by Cheapflights users on 11/20. 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 12/136:39 pmSEA - SJU
1 stop17h 22mSun Country Air
Sun 12/225:20 pmSJU - SEA
1 stop33h 23mSun Country Air
Deal found 11/20$600
This Frontier deal was found by Cheapflights users on 11/21. 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 12/204:36 pmSEA - SJU
1 stop9h 54mFrontier
Wed 12/258:00 amSJU - SEA
1 stop12h 37mFrontier
Deal found 11/21$673
This Southwest deal was found by Cheapflights users on 11/20. 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.
Sun 11/2410:45 amSEA - SJU
2 stops20h 00mSouthwest
Tue 11/262:25 pmSJU - SEA
2 stops14h 25mSouthwest
Deal found 11/20$714

Find flights from Seattle to San Juan within your budget

Customize your flight search to find flights from Seattle to San Juan 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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 1/4

9:36 pm-11:54 pm

3 stops46h 18m

San Juan Luis Munoz Marin Intl

Sat 1/11

6:15 am-8:50 pm

3 stops42h 35m

$367

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 1/6

2:16 pm-5:40 pm

2 stops23h 24m

San Juan Luis Munoz Marin Intl

Fri 1/10

10:09 pm-12:14 am

2 stops30h 05m

$368

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 1/12

12:45 am-5:30 pm

2 stops12h 45m

San Juan Luis Munoz Marin Intl

Tue 1/28

6:15 am-2:56 pm

2 stops12h 41m

$387

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 1/7

7:00 am-9:28 pm

1 stop10h 28m

San Juan Luis Munoz Marin Intl

Fri 1/17

2:05 am-11:16 am

1 stop13h 11m

$423

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 3/11

11:15 pm-4:13 pm

1 stop13h 58m

San Juan Luis Munoz Marin Intl

Wed 3/19

12:54 pm-11:59 pm

1 stop14h 05m

$489

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 2/19

7:30 am-12:40 am

2 stops13h 10m

San Juan Luis Munoz Marin Intl

Thu 2/27

3:30 pm-12:25 am

2 stops12h 55m

$494

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 2/1

5:55 pm-8:21 pm

2 stops22h 26m

$206

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 1/6

7:10 pm-12:47 pm

2 stops13h 37m

$213

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 12/31

10:09 pm-5:30 pm

1 stop15h 21m

$219

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 4/26

12:40 am-7:39 pm

2 stops15h 59m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 15 results
1
2

Best time to book a flight from Seattle to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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.

Travel insights for flights from Seattle to San Juan

Get recent, data-driven insights about flights from Seattle to San Juan including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Juan. Price data was last updated on November 15, 2024.

The best time to book flights from Seattle to San Juan is 21 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to San Juan?

Currently, September is the cheapest month in which you can book a flight from Seattle to San Juan (average of $254). Flying from Seattle to San Juan in March is currently the most expensive (average of $335). 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 SJU?

Find hourly flight availability from Seattle to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

It’s typically best to fly out from Seattle to San Juan in the afternoon. Doing so could potentially save you 7% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Seattle to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Seattle to San Juan. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Seattle to San Juan flight should consider departing on Wednesday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan 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 San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, 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 San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated November 21, 2024.
To help decide which airline to fly from Seattle to San Juan, see what other customers have to say about Spirit Airlines, American Airlines and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,758 reviews
Southwest
8.1
Very good
5,015 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,396 reviews
Southwest
8.1
Very good
5,015 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,015 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,015 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Seattle to San Juan. 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 San Juan?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to San Juan from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 8 different airlines.

  • What are the cheapest airlines flying from Seattle to San Juan round-trip?

    Our cheapest airline available from Seattle to San Juan is Spirit Airlines. Our recent data shows that you can find tickets from as low as $368 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $387 and $423 round-trip. Spirit Airlines is currently priced 34% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to San Juan one-way?

    $206 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $213 and $219, respectively.

  • Where are the most common layover locations when flying from Seattle to San Juan?

    Flights departing from Seattle and landing in San Juan layover in Charlotte most frequently. Seattle to San Juan flights stop in Miami the next most. Dallas comes in third as the most popular layover location on Seattle to San Juan flights.

  • What are some popular things to do or see while on a layover in Charlotte?

    Most Charlotte visitors opt to spend their time experiencing Carowind, Mint Museum Uptown, and Ovens Auditorium. Travelers on a layover in Charlotte can visit Carowind, Mint Museum Uptown, and Ovens Auditorium, by traveling 8.2 mi, 5.4 mi, and 8.5 mi, respectively after landing at Charlotte Douglas. Travelers can book a car rental at Charlotte Douglas for about $52 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Miami?

    Bayfront Park, Wynwood Art District, and Bayside Marketplace are currently the most popular points of interest in Miami at the moment. Those on a layover in Miami interested in visiting Bayfront Park, Wynwood Art District, or Bayside Marketplace can do so by traveling 6.4 mi, 5.5 mi, and 6.4 mi, respectively from Miami. Those looking to explore during their layover in Miami can rent a car from Miami for about $27 per day.

  • What are points of interest worth seeing during a layover in Dallas?

    American Airlines Center, Dos Equis Pavilion, and Majestic Theatre are the most popular attractions in Dallas if you're in need of something to do during your layover. Those on a layover in Dallas interested in visiting American Airlines Center, Dos Equis Pavilion, or Majestic Theatre can do so by traveling 15.0 mi, 18.3 mi, and 16.1 mi, respectively from Dallas/Fort Worth. Those landing in Dallas looking to spend some time exploring during their layover can rent a car for about $61 per day.

  • Where are the least popular layover locations for Seattle to San Juan flights?

    Of the flights from Seattle to San Juan that have layovers, the fewest flights stop in New York. Seattle to San Juan flights stopping in Atlanta are the next rarest.

  • Can I find deals for flights from Seattle to San Juan that include hotel bookings?

    Yes. In addition to deals on Seattle to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to San Juan.

  • Can I find deals for business class flights from Seattle to San Juan?

    Yes. Cheapflights offers flight deals from Seattle to San Juan 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 San Juan?

    Currently, September is the cheapest month in which you can book a flight from Seattle to San Juan (average of $254). Flying from Seattle to San Juan in March is currently the most expensive (average of $335). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 8 airlines flying from Seattle to San Juan

Discover the top 8 airlines that operate flights from Seattle to San Juan. 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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$241Average$384FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$286Average$535FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$291Average$852FlexibilityNo cancel feeOn-time83%
FrontierCheapest$293Average$551FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$315Average$544FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$317Average$592FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$425Average$678FlexibilityNo cancel feeOn-time75%
DeltaCheapest$454Average$751FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines