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$133+ 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 8 — Jan 151
Thu 1/8
Thu 1/15
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 9, 2025.

This Delta deal was found by Cheapflights users on 12/8. 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 12/99:59 pmSEA - AUA
1 stop11h 56mDelta
Tue 12/164:35 pmAUA - SEA
1 stop11h 23mDelta
Deal found 12/8$430
This American Airlines deal was found by Cheapflights users on 12/8. 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 12/910:08 pmSEA - PUJ
1 stop12h 24mAmerican Airlines
Tue 12/161:02 pmPUJ - SEA
1 stop14h 23mAmerican Airlines
Deal found 12/8$430
This Delta deal was found by Cheapflights users on 12/7. 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.
Mon 12/89:59 pmSEA - MBJ
1 stop11h 31mDelta
Sun 12/142:29 pmMBJ - SEA
1 stop12h 29mDelta
Deal found 12/7$451
This American Airlines deal was found by Cheapflights users on 12/7. 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 12/712:31 amSEA - MBJ
2 stops10h 41mAmerican Airlines
Sun 12/141:55 pmMBJ - SEA
2 stops14h 00mAmerican Airlines
Deal found 12/7$461
This American Airlines deal was found by Cheapflights users on 12/6. 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 12/1012:41 pmSEA - MBJ
1 stop21h 14mAmerican Airlines
Fri 12/123:12 pmMBJ - SEA
1 stop11h 13mAmerican Airlines
Deal found 12/6$463
This Delta deal was found by Cheapflights users on 12/9. 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 12/1211:15 pmSEA - PUJ
1 stop10h 40mDelta
Tue 12/163:50 pmPUJ - SEA
1 stop12h 08mDelta
Deal found 12/9$464
This American Airlines deal was found by Cheapflights users on 12/9. 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 12/1312:31 amSEA - PUJ
1 stop11h 58mAmerican Airlines
Wed 12/173:34 pmPUJ - SEA
1 stop11h 42mAmerican Airlines
Deal found 12/9$470
This American Airlines deal was found by Cheapflights users on 12/7. 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 12/3011:07 pmSEA - SJU
1 stop20h 52mAmerican Airlines
Tue 3/249:20 amSJU - SEA
1 stop15h 53mAmerican Airlines
Deal found 12/7$471
This American Airlines deal was found by Cheapflights users on 12/9. 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 12/1012:41 pmSEA - PUJ
1 stop20h 51mAmerican Airlines
Tue 12/161:02 pmPUJ - SEA
1 stop14h 23mAmerican Airlines
Deal found 12/9$472
This American Airlines deal was found by Cheapflights users on 12/9. 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 12/3011:07 pmSEA - STT
1 stop10h 52mAmerican Airlines
Mon 1/122:26 pmSTT - SEA
1 stop11h 41mAmerican Airlines
Deal found 12/9$473
This American Airlines deal was found by Cheapflights users on 12/9. 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.
Thu 12/1110:07 pmSEA - PUJ
1 stop10h 46mAmerican Airlines
Mon 12/153:34 pmPUJ - SEA
1 stop11h 42mAmerican Airlines
Deal found 12/9$481
This American Airlines deal was found by Cheapflights users on 12/8. 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 12/1212:37 pmSEA - MBJ
1 stop18h 35mAmerican Airlines
Sun 12/1411:13 amMBJ - SEA
1 stop15h 03mAmerican Airlines
Deal found 12/8$486

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 9, 2025.

Round-trip from

$363
(American Airlines)

One-way from

$133
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$797
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 ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 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 9, 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

Sun 2/22

6:05 am-11:58 pm

1 stop13h 53m

San Juan Luis Munoz Marin Intl

Tue 3/3

7:00 am-6:29 pm

2 stops15h 29m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 2/22

11:35 pm-2:40 pm

1 stop11h 05m

San Juan Luis Munoz Marin Intl

Thu 2/26

3:46 pm-11:00 pm

1 stop11h 14m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 1/24

5:00 am-11:57 pm

2 stops14h 57m

San Juan Luis Munoz Marin Intl

Tue 2/3

7:00 am-8:46 pm

2 stops17h 46m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 3/3

6:10 am-11:56 pm

2 stops13h 46m

San Juan Luis Munoz Marin Intl

Tue 3/10

7:00 am-6:28 pm

2 stops14h 28m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 2/23

7:10 am-11:56 pm

1 stop12h 46m

San Juan Luis Munoz Marin Intl

Wed 3/4

7:00 am-12:09 am

2 stops21h 09m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 1/18

6:15 am-11:45 pm

1 stop13h 30m

San Juan Luis Munoz Marin Intl

Thu 1/22

3:20 pm-9:49 pm

1 stop10h 29m

$363

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Wed 1/7

12:45 pm-11:33 am

1 stop19h 48m

Montego Bay Sangster Intl

Tue 1/13

4:27 pm-9:37 am

1 stop20h 10m

$411

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Thu 2/19

11:59 pm-2:59 pm

1 stop12h 00m

Montego Bay Sangster Intl

Wed 2/25

12:25 pm-9:08 pm

1 stop11h 43m

$411

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Wed 1/21

9:45 pm-11:33 am

1 stop10h 48m

Montego Bay Sangster Intl

Wed 1/28

12:33 pm-8:45 pm

1 stop11h 12m

$411

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Fri 1/23

7:30 pm-2:00 pm

2 stops15h 30m

Montego Bay Sangster Intl

Fri 1/30

3:20 pm-12:49 pm

2 stops24h 29m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

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, October is the cheapest month in which you can book a flight from Seattle to Caribbean (average of $220). 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 9, 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 9, 2025.
See what other customers who have flown with Alaska Airlines, 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.
Alaska Airlines
8.0
Very good
11,423 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,423 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,009 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,089 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,043 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
JetBlue
7.2
Good
2,899 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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?

    Delta, American Airlines, and United Airlines can get you from Seattle to Caribbean in just under 9h 18m. Your travel time can differ by up to 10h 30m. There are 3609 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, October is the cheapest month in which you can book a flight from Seattle to Caribbean (average of $220). 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.

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Alternative routes for Seattle to Caribbean

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 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$175Average$476FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$208Average$422FlexibilityNo cancel feeOn-time65%
DeltaCheapest$232Average$666FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$292Average$634FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$327Average$570FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$340Average$676FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$362Average$710FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$521Average$764FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$544Average$828FlexibilityNo cancel feeOn-time83%
Air CanadaCheapest$632Average$945FlexibilityNo cancel feeOn-time67%

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