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Caribbean Islands

$154+ Cheap flights from Seattle (SEA) to Caribbean Islands

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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Seattle to Caribbean Islands

Keep the following information in mind while searching for Seattle to Caribbean Islands flight deals. Data was last updated February 20, 2025.

Round-trip from

$260
(FlightHub)

One-way from

$154
(eDestinos)

Popular in

December

Cheapest in

September

Average price

$532
From Seattle/Tacoma Intl to Caribbean Islands
Search Deals
One-way flight from Seattle/Tacoma Intl to Caribbean Islands
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Seattle to Caribbean Islands

Cheapest flights from Seattle to Caribbean Islands
Explore the most affordable flight options available from Seattle to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/20. 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.
Tue 4/2212:30 pmSEA - STT
2 stops21h 23mSpirit Airlines
Tue 4/2910:45 amSTT - SEA
2 stops27h 50mSpirit Airlines
Deal found 2/20$260
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
Wed 4/21:52 pmSEA - PUJ
2 stops23h 43mMultiple Airlines
Wed 4/95:03 pmPUJ - SEA
1 stop19h 33mMultiple Airlines
Deal found 2/20$336
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 3/1811:25 pmSEA - NAS
1 stop9h 28mUnited Airlines
Tue 3/252:35 pmNAS - SEA
1 stop11h 14mUnited Airlines
Deal found 2/20$355
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Mon 3/1712:41 pmSEA - PUJ
2 stops20h 36mSpirit Airlines
Tue 3/251:14 pmPUJ - SEA
2 stops22h 29mSpirit Airlines
Deal found 2/20$357
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 4/15:22 amSEA - NAS
2 stops10h 53mAmerican Airlines
Tue 4/82:43 pmNAS - SEA
2 stops11h 26mAmerican Airlines
Deal found 2/20$359
This CheapOair deal was found by Cheapflights users on 2/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/812:41 pmSEA - SJU
2 stops29h 09mSpirit Airlines
Tue 3/113:38 amSJU - SEA
2 stops35h 08mSpirit Airlines
Deal found 2/20$363
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Fri 5/96:33 pmSEA - SJU
2 stops26h 39mMultiple Airlines
Mon 5/123:45 pmSJU - SEA
2 stops23h 57mMultiple Airlines
Deal found 2/20$369
This JetBlue deal was found by Cheapflights users on 2/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1811:48 pmSEA - SJU
1 stop11h 42mJetBlue
Wed 3/2611:05 amSJU - SEA
1 stop14h 33mJetBlue
Deal found 2/20$373
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 3/187:00 amSEA - SJU
2 stops13h 36mUnited Airlines
Tue 3/251:05 amSJU - SEA
1 stop13h 14mUnited Airlines
Deal found 2/20$379
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 3/1810:01 pmSEA - SJU
1 stop15h 33mAmerican Airlines
Wed 3/2611:36 amSJU - SEA
1 stop12h 20mAmerican Airlines
Deal found 2/20$382
This Booking.com deal was found by Cheapflights users on 2/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/36:00 amSEA - PUJ
2 stops28h 34mFrontier
Sun 5/113:07 pmPUJ - SEA
2 stops28h 27mFrontier
Deal found 2/20$393
This Priceline deal was found by Cheapflights users on 2/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1712:41 pmSEA - AUA
2 stops23h 04mSpirit Airlines
Tue 3/253:50 pmAUA - SEA
2 stops19h 53mSpirit Airlines
Deal found 2/19$419

Find flights from Seattle to Caribbean Islands within your budget

Customize your flight search to find flights from Seattle to Caribbean Islands 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 February 20, 2025.

Fly from

Seattle

Fly to

Caribbean Islands

Route

Depart

Return

Price

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 4/22

12:30 pm-12:53 pm

2 stops21h 23m

Saint Thomas Island Cyril E King

Tue 4/29

10:45 am-11:35 am

2 stops27h 50m

$260

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Wed 4/2

1:52 pm-4:35 pm

2 stops23h 43m

Punta Cana

Wed 4/9

5:03 pm-9:36 am

1 stop19h 33m

$336

SeattleNassau

SEA - NAS

SEANAS

Seattle/Tacoma Intl

Tue 3/18

11:25 pm-11:53 am

1 stop9h 28m

Nassau Intl

Tue 3/25

2:35 pm-10:49 pm

1 stop11h 14m

$355

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Mon 3/17

12:41 pm-12:17 pm

2 stops20h 36m

Punta Cana

Tue 3/25

1:14 pm-8:43 am

2 stops22h 29m

$357

SeattleNassau

SEA - NAS

SEANAS

Seattle/Tacoma Intl

Tue 4/1

5:22 am-7:15 pm

2 stops10h 53m

Nassau Intl

Tue 4/8

2:43 pm-11:09 pm

2 stops11h 26m

$359

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 3/8

12:41 pm-9:50 pm

2 stops29h 09m

San Juan Luis Munoz Marin Intl

Tue 3/11

3:38 am-11:46 am

2 stops35h 08m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/9

6:33 pm-12:12 am

2 stops26h 39m

San Juan Luis Munoz Marin Intl

Mon 5/12

3:45 pm-12:42 pm

2 stops23h 57m

$369

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 3/18

11:48 pm-2:30 pm

1 stop11h 42m

San Juan Luis Munoz Marin Intl

Wed 3/26

11:05 am-10:38 pm

1 stop14h 33m

$373

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 3/18

7:00 am-11:36 pm

2 stops13h 36m

San Juan Luis Munoz Marin Intl

Tue 3/25

1:05 am-11:19 am

1 stop13h 14m

$379

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 3/18

10:01 pm-4:34 pm

1 stop15h 33m

San Juan Luis Munoz Marin Intl

Wed 3/26

11:36 am-8:56 pm

1 stop12h 20m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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

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

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

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

Currently, September is the cheapest month in which you can book a flight from Seattle to Caribbean Islands (average of $254). Flying from Seattle to Caribbean Islands in March is currently the most expensive (average of $363). 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 EPX?

Find hourly flight availability from Seattle to Caribbean Islands. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Caribbean Islands as you normally would.

Rainfall in Caribbean Islands by month

Plan your trip to Caribbean Islands by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Caribbean Islands 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 Caribbean Islands when rainfall is around 2.2 in.

Temperature in Caribbean Islands by month

Plan your trip to Caribbean Islands by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Caribbean Islands, 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 Caribbean Islands

Get insights into the airlines that provide service to Caribbean Islands. 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 Islands. Reviews last updated February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and Alaska Airlines from Seattle to Caribbean Islands 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.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

KLM
7.8
Good
1,333 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Copa Airlines
7.6
Good
1,510 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

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

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Caribbean Islands.

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

    The cheapest airlines for a one-way flight from Seattle to Caribbean Islands are Frontier ($154), Spirit Airlines ($155), and American Airlines ($183).

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

    When deciding which route to take from Seattle to Caribbean Islands consider Seattle/Tacoma Intl - San Juan Luis Munoz Marin Intl, Seattle/Tacoma Intl - Punta Cana or Seattle/Tacoma Intl - Nassau Intl as they are the most popular.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Seattle to Caribbean Islands (average of $254). Flying from Seattle to Caribbean Islands in March is currently the most expensive (average of $363). 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 Caribbean Islands

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 Islands

Discover the top 10 airlines that operate flights from Seattle to Caribbean Islands. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$199Average$489FlexibilityNo cancel feeOn-time65%
FrontierCheapest$267Average$478FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$286Average$646FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$326Average$714FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$328Average$702FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$340Average$641FlexibilityNo cancel feeOn-time75%
DeltaCheapest$443Average$684FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$447Average$882FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$569Average$771FlexibilityNo cancel feeOn-time63%
AeromexicoCheapest$608Average$733FlexibilityNo cancel feeOn-timeN/A
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