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Caribbean Islands

$140+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 April 24, 2025.

Round-trip from

$373
(Priceline)

One-way from

$140
(eDestinos)

Popular in

December

Cheapest in

September

Average price

$590
From Seattle/Tacoma Intl to Caribbean Islands
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One-way flight from Seattle/Tacoma Intl to Caribbean Islands
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Highest demand for flights based on searches. 6% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 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 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 April 24, 2025.

This American Airlines deal was found by Cheapflights users on 4/23. 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 9/2411:59 pmSEA - SJU
1 stop11h 46mAmerican Airlines
Thu 10/23:58 pmSJU - SEA
1 stop11h 35mAmerican Airlines
Deal found 4/23$357
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:26 pmSEA - SJU
1 stop10h 23mUnited Airlines
Sat 11/157:45 amSJU - SEA
2 stops14h 42mUnited Airlines
Deal found 4/22$383
This Booking.com deal was found by Cheapflights users on 4/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/23:20 pmSEA - SJU
2 stops17h 11mSpirit Airlines
Mon 6/912:36 pmSJU - SEA
2 stops14h 34mSpirit Airlines
Deal found 4/23$385
This CheapOair deal was found by Cheapflights users on 4/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2311:59 pmSEA - SJU
1 stop10h 48mMultiple Airlines
Thu 5/298:12 pmSJU - SEA
2 stops21h 13mMultiple Airlines
Deal found 4/23$387
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/911:00 pmSEA - SJU
2 stops11h 15mSouthwest
Wed 8/1311:50 amSJU - SEA
2 stops14h 00mSouthwest
Deal found 4/23$402
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 9/210:58 pmSEA - AUA
1 stop11h 22mAmerican Airlines
Tue 9/304:45 pmAUA - SEA
1 stop10h 48mAmerican Airlines
Deal found 4/22$411
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 8/3110:58 pmSEA - STT
1 stop10h 52mAmerican Airlines
Mon 9/84:50 pmSTT - SEA
1 stop10h 43mAmerican Airlines
Deal found 4/23$443
This Mytrip deal was found by Cheapflights users on 4/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/33:20 pmSEA - STT
2 stops15h 37mSpirit Airlines
Tue 6/1010:52 amSTT - SEA
2 stops30h 33mSpirit Airlines
Deal found 4/23$461
This Delta deal was found by Cheapflights users on 4/22. 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.
Mon 11/179:20 pmSEA - PUJ
1 stop14h 00mDelta
Fri 11/213:50 pmPUJ - SEA
1 stop12h 24mDelta
Deal found 4/22$475
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2911:10 pmSEA - CUR
1 stop13h 00mAmerican Airlines
Sat 12/63:35 pmCUR - SEA
1 stop11h 47mAmerican Airlines
Deal found 4/21$476
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Sat 6/75:55 pmSEA - PUJ
1 stop15h 34mMultiple Airlines
Sat 6/143:55 pmPUJ - SEA
2 stops23h 36mMultiple Airlines
Deal found 4/22$478
This American Airlines deal was found by Cheapflights users on 4/22. 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 11/161:33 amSEA - PUJ
1 stop11h 02mAmerican Airlines
Fri 11/212:10 pmPUJ - SEA
2 stops14h 43mAmerican Airlines
Deal found 4/22$479

Cheapflights Fare Finder

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 April 24, 2025.
Use the filters below to find and compare flights from Seattle to Caribbean Islands that are best for you.

Fly from

Seattle

Fly to

Caribbean Islands

Route

Depart

Return

Price

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 6/2

3:20 pm-11:31 am

2 stops17h 11m

San Juan Luis Munoz Marin Intl

Mon 6/9

12:36 pm-12:10 am

2 stops14h 34m

$385

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/23

11:59 pm-1:47 pm

1 stop10h 48m

San Juan Luis Munoz Marin Intl

Thu 5/29

8:12 pm-2:25 pm

2 stops21h 13m

$387

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 5/13

12:24 am-12:39 pm

1 stop9h 15m

San Juan Luis Munoz Marin Intl

Sat 5/31

2:10 pm-9:50 pm

1 stop10h 40m

$417

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 5/24

7:22 pm-2:44 pm

2 stops16h 22m

San Juan Luis Munoz Marin Intl

Wed 5/28

4:55 pm-12:59 am

1 stop11h 04m

$447

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 6/3

3:20 pm-9:57 am

2 stops15h 37m

Saint Thomas Island Cyril E King

Tue 6/10

10:52 am-2:25 pm

2 stops30h 33m

$461

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Fri 6/6

11:37 pm-12:54 pm

1 stop10h 17m

Punta Cana

Wed 6/11

4:35 pm-12:59 am

1 stop11h 24m

$475

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Sat 6/7

5:55 pm-12:29 pm

1 stop15h 34m

Punta Cana

Sat 6/14

3:55 pm-12:31 pm

2 stops23h 36m

$478

SeattleWillemstad

SEA - CUR

SEACUR

Seattle/Tacoma Intl

Sat 8/30

10:58 pm-3:15 pm

1 stop13h 17m

Willemstad Hato Int.

Sat 9/6

2:50 pm-9:22 am

2 stops21h 32m

$481

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 6/3

5:50 pm-12:07 pm

2 stops15h 17m

Saint Thomas Island Cyril E King

Tue 6/10

1:19 pm-11:05 pm

1 stop12h 46m

$485

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Sat 6/7

10:40 pm-1:30 pm

1 stop11h 50m

Punta Cana

Sat 6/14

12:28 pm-9:53 pm

1 stop12h 25m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Caribbean Islands

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 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 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 April 24, 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 April 24, 2025.
Peruse reviews from past customers who have flown with Delta, Alaska Airlines and Southwest 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.
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Alaska Airlines
8.0
Very good
9,918 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Southwest
8.0
Very good
4,287 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.6
Good
1,411 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,767 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 Spirit Airlines ($140), American Airlines ($184), and Alaska Airlines ($195).

  • 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 - Nassau Intl or Seattle/Tacoma Intl - Montego Bay Sangster 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 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.

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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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$233Average$346FlexibilityNo cancel feeOn-time65%
FrontierCheapest$250Average$556FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$286Average$628FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$327Average$713FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$338Average$698FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$340Average$675FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$447Average$882FlexibilityNo cancel feeOn-time83%
DeltaCheapest$452Average$675FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$569Average$784FlexibilityNo cancel feeOn-time63%
Air CanadaCheapest$649Average$923FlexibilityNo cancel feeOn-time67%

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