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Caribbean

$114+ Cheap flights from Seattle (SEA) to Caribbean

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Seattle to Caribbean

Cheapest flights from Seattle to Caribbean
Explore the most affordable flight options available from Seattle to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:00 amSEA - PUJ
1 stop26h 30mMultiple Airlines
Thu 1/294:35 pmPUJ - SEA
2 stops47h 04mMultiple Airlines
Deal found 12/20$597
This Delta deal was found by Cheapflights users on 12/22. 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 12/2610:55 pmSEA - SDQ
1 stop10h 34mDelta
Tue 12/307:55 pmSDQ - SEA
1 stop18h 31mDelta
Deal found 12/22$598
This Delta deal was found by Cheapflights users on 12/22. 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 12/261:35 pmSEA - SDQ
2 stops24h 48mDelta
Tue 12/303:45 amSDQ - SEA
2 stops23h 40mDelta
Deal found 12/22$602
This Delta deal was found by Cheapflights users on 12/22. 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 12/3010:55 pmSEA - STT
1 stop9h 43mDelta
Mon 1/123:10 pmSTT - SEA
1 stop11h 40mDelta
Deal found 12/22$602
This American Airlines deal was found by Cheapflights users on 12/23. 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.
Wed 12/3110:06 pmSEA - SJU
1 stop16h 01mAmerican Airlines
Sat 1/106:30 amSJU - SEA
1 stop19h 37mAmerican Airlines
Deal found 12/23$637
This Delta deal was found by Cheapflights users on 12/22. 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.
Thu 12/253:47 pmSEA - SDQ
1 stop18h 45mDelta
Tue 12/307:55 pmSDQ - SEA
1 stop18h 31mDelta
Deal found 12/22$647
This American Airlines deal was found by Cheapflights users on 12/22. 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.
Sun 12/2812:59 amSEA - SJU
1 stop10h 00mAmerican Airlines
Thu 1/86:00 amSJU - SEA
1 stop11h 14mAmerican Airlines
Deal found 12/22$679
This Delta deal was found by Cheapflights users on 12/22. 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.
Thu 12/253:47 pmSEA - SDQ
1 stop18h 45mDelta
Wed 12/317:55 pmSDQ - SEA
1 stop18h 31mDelta
Deal found 12/22$696
This Kiwi.com deal was found by Cheapflights users on 12/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:49 pmSEA - PUJ
1 stop15h 58mMultiple Airlines
Tue 1/611:00 amPUJ - SEA
2 stops37h 39mMultiple Airlines
Deal found 12/21$704
This Delta deal was found by Cheapflights users on 12/22. 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 12/285:25 amSEA - SDQ
2 stops17h 44mDelta
Tue 12/307:55 pmSDQ - SEA
2 stops24h 38mDelta
Deal found 12/22$705
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:34 pmSEA - SJU
1 stop17h 39mMultiple Airlines
Tue 1/67:18 pmSJU - SEA
2 stops41h 46mMultiple Airlines
Deal found 12/22$706
This Air Canada deal was found by Cheapflights users on 12/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:00 pmSEA - PUJ
2 stops21h 45mAir Canada
Tue 1/65:45 pmPUJ - SEA
1 stop32h 31mAir Canada
Deal found 12/21$709

Find flight deals from Seattle to Caribbean

Keep the following information in mind while searching for Seattle to Caribbean flight deals. Data was last updated December 23, 2025.

Round-trip from

$363
(United Airlines)

One-way from

$114
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$809
From Seattle/Tacoma Intl to Caribbean
Search Deals
One-way flight from Seattle/Tacoma Intl to Caribbean
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Caribbean 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 December 23, 2025.
Use the filters below to find and compare flights from Seattle to Caribbean that are best for you.

Fly from

Seattle

Fly to

Caribbean

Route

Depart

Return

Price

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 5/30

11:20 pm-12:34 pm

1 stop10h 14m

San Juan Luis Munoz Marin Intl

Wed 6/3

4:55 pm-12:45 am

1 stop10h 50m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 1/12

9:55 pm-1:05 pm

1 stop11h 10m

San Juan Luis Munoz Marin Intl

Wed 1/28

3:20 pm-9:49 pm

1 stop10h 29m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 1/19

7:00 am-9:26 pm

1 stop10h 26m

San Juan Luis Munoz Marin Intl

Tue 1/27

8:35 am-6:14 pm

1 stop13h 39m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 1/31

9:59 pm-4:50 pm

1 stop14h 51m

San Juan Luis Munoz Marin Intl

Thu 2/5

3:55 pm-11:15 pm

1 stop11h 20m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 1/20

7:00 am-9:00 pm

1 stop10h 00m

San Juan Luis Munoz Marin Intl

Tue 1/27

8:35 am-6:26 pm

2 stops13h 51m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Thu 2/19

9:55 pm-1:05 pm

1 stop11h 10m

San Juan Luis Munoz Marin Intl

Fri 2/27

2:16 pm-10:22 pm

1 stop12h 06m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 2/1

7:00 am-9:26 pm

1 stop10h 26m

San Juan Luis Munoz Marin Intl

Fri 2/6

2:05 am-11:07 am

1 stop13h 02m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 2/21

2:20 pm-6:11 am

1 stop11h 51m

San Juan Luis Munoz Marin Intl

Wed 2/25

8:05 am-6:03 pm

2 stops13h 58m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 1/17

8:10 am-10:22 pm

1 stop10h 12m

San Juan Luis Munoz Marin Intl

Tue 1/20

2:05 am-11:07 am

1 stop13h 02m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 1/17

7:52 pm-12:30 pm

2 stops12h 38m

San Juan Luis Munoz Marin Intl

Fri 1/23

7:07 am-7:18 pm

1 stop16h 11m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 60 results
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Best time to book a flight from Seattle to Caribbean

Have a flexible travel schedule? Discover the best time to fly to Caribbean 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 Caribbean

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Caribbean (average of $215). Flying from Seattle to Caribbean in July is currently the most expensive (average of $476). 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 CB?

Find hourly flight availability from Seattle to Caribbean. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

One of the essential ways to save on airfare from Seattle to Caribbean is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

What is the cheapest day to fly from Seattle to Caribbean?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Caribbean. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Caribbean flight should consider departing on Monday mornings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Caribbean

Get insights into the airlines that provide service to Caribbean. 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 Caribbean. Reviews last updated December 23, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Seattle to Caribbean have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,253 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,014 reviews
Southwest
8.0
Very good
4,253 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,106 reviews
Southwest
8.0
Very good
4,253 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,054 reviews
Southwest
8.0
Very good
4,253 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
JetBlue
7.2
Good
2,898 reviews
Southwest
8.0
Very good
4,253 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

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

    If you book a flight to Caribbean from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • How long is the flight from Seattle to Caribbean?

    United Airlines, Delta, and American Airlines can get you from Seattle to Caribbean in just under 10h 26m. Your travel time can differ by up to 1h 49m. There are 3723 mi between Seattle and Caribbean. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $119. American Airlines flights start at $166 while deals on JetBlue start at $170 one-way.

  • What are the most popular routes from Seattle to Caribbean?

    The most popular route from Seattle to Caribbean is Seattle/Tacoma Intl - San Juan Luis Munoz Marin Intl. You may also consider Seattle/Tacoma Intl - Punta Cana or Seattle/Tacoma Intl - Saint Thomas Island Cyril E King.

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

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

  • How can I find direct flights from Seattle to Caribbean?

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

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

    Yes. Cheapflights offers flight deals from Seattle to Caribbean 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 Caribbean?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Caribbean (average of $215). Flying from Seattle to Caribbean in July is currently the most expensive (average of $476). 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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See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seattle to Caribbean

Discover the top 10 airlines that operate flights from Seattle to Caribbean. 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$175Average$373FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$208Average$422FlexibilityNo cancel feeOn-time65%
DeltaCheapest$232Average$658FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$292Average$630FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$327Average$558FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$340Average$674FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$363Average$707FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$521Average$761FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$544Average$828FlexibilityNo cancel feeOn-time83%
Air CanadaCheapest$632Average$841FlexibilityNo cancel feeOn-time67%

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