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$148+ 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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Seattle to Caribbean

Keep the following information in mind while searching for Seattle to Caribbean flight deals. Data was last updated May 1, 2025.

Round-trip from

$356
(FlightHub)

One-way from

$148
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$596
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. 6% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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 May 1, 2025.

This FlightHub deal was found by Cheapflights users on 4/30. 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.
Thu 5/223:20 pmSEA - SJU
2 stops24h 30mSpirit Airlines
Thu 5/298:12 pmSJU - SEA
2 stops21h 13mSpirit Airlines
Deal found 4/30$356
This United Airlines deal was found by Cheapflights users on 4/30. 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 9/167:34 pmSEA - SJU
2 stops15h 11mUnited Airlines
Mon 9/221:05 amSJU - SEA
2 stops13h 26mUnited Airlines
Deal found 4/30$367
This Mytrip deal was found by Cheapflights users on 4/30. 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 5/236:33 pmSEA - SJU
1 stop16h 14mMultiple Airlines
Tue 5/271:33 amSJU - SEA
2 stops25h 37mMultiple Airlines
Deal found 4/30$375
This Mytrip deal was found by Cheapflights users on 4/29. 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 6/43:20 pmSEA - STT
2 stops15h 37mSpirit Airlines
Thu 6/1210:47 amSTT - SEA
2 stops31h 16mSpirit Airlines
Deal found 4/29$394
This American Airlines deal was found by Cheapflights users on 4/30. 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 5/275:20 amSEA - SJU
1 stop12h 13mAmerican Airlines
Thu 5/296:10 amSJU - SEA
1 stop19h 57mAmerican Airlines
Deal found 4/30$402
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/105:58 pmSEA - PUJ
1 stop14h 53mMultiple Airlines
Wed 5/143:22 pmPUJ - SEA
2 stops26h 03mMultiple Airlines
Deal found 4/30$410
This Mytrip deal was found by Cheapflights users on 4/29. 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 5/203:20 pmSEA - PUJ
2 stops18h 35mSpirit Airlines
Wed 5/283:22 pmPUJ - SEA
2 stops26h 03mSpirit Airlines
Deal found 4/29$424
This Southwest deal was found by Cheapflights users on 4/30. 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.
Mon 7/289:10 pmSEA - SJU
2 stops12h 55mSouthwest
Wed 10/85:05 amSJU - SEA
2 stops13h 00mSouthwest
Deal found 4/30$436
This Delta deal was found by Cheapflights users on 4/30. 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 7/226:00 amSEA - SJU
1 stop13h 23mDelta
Wed 7/307:30 amSJU - SEA
2 stops13h 55mDelta
Deal found 4/30$437
This Mytrip deal was found by Cheapflights users on 4/30. 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 6/103:20 pmSEA - MBJ
2 stops17h 42mSpirit Airlines
Fri 6/1310:15 amMBJ - SEA
2 stops30h 48mSpirit Airlines
Deal found 4/30$449
This American Airlines deal was found by Cheapflights users on 4/30. 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 5/91:10 amSEA - PUJ
1 stop11h 39mAmerican Airlines
Wed 5/1412:58 pmPUJ - SEA
1 stop13h 09mAmerican Airlines
Deal found 4/30$457
This American Airlines deal was found by Cheapflights users on 4/30. 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 6/312:24 amSEA - SDQ
1 stop9h 53mAmerican Airlines
Thu 6/52:35 pmSDQ - SEA
1 stop12h 12mAmerican Airlines
Deal found 4/30$479

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 May 1, 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

Thu 5/22

3:20 pm-6:50 pm

2 stops24h 30m

San Juan Luis Munoz Marin Intl

Thu 5/29

8:12 pm-2:25 pm

2 stops21h 13m

$356

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 9/16

7:34 pm-1:45 pm

2 stops15h 11m

San Juan Luis Munoz Marin Intl

Mon 9/22

1:05 am-11:31 am

2 stops13h 26m

$367

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/23

6:33 pm-1:47 pm

1 stop16h 14m

San Juan Luis Munoz Marin Intl

Tue 5/27

1:33 am-12:10 am

2 stops25h 37m

$375

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 6/4

3:20 pm-9:57 am

2 stops15h 37m

Saint Thomas Island Cyril E King

Thu 6/12

10:47 am-3:03 pm

2 stops31h 16m

$394

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 5/27

5:20 am-8:33 pm

1 stop12h 13m

San Juan Luis Munoz Marin Intl

Thu 5/29

6:10 am-11:07 pm

1 stop19h 57m

$402

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Sat 5/10

5:58 pm-11:51 am

1 stop14h 53m

Punta Cana

Wed 5/14

3:22 pm-2:25 pm

2 stops26h 03m

$410

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Tue 5/20

3:20 pm-12:55 pm

2 stops18h 35m

Punta Cana

Wed 5/28

3:22 pm-2:25 pm

2 stops26h 03m

$424

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 7/28

9:10 pm-1:05 pm

2 stops12h 55m

San Juan Luis Munoz Marin Intl

Wed 10/8

5:05 am-3:05 pm

2 stops13h 00m

$436

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 7/22

6:00 am-10:23 pm

1 stop13h 23m

San Juan Luis Munoz Marin Intl

Wed 7/30

7:30 am-6:25 pm

2 stops13h 55m

$437

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Tue 6/10

3:20 pm-11:02 am

2 stops17h 42m

Montego Bay Sangster Intl

Fri 6/13

10:15 am-3:03 pm

2 stops30h 48m

$449

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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, September is the cheapest month in which you can book a flight from Seattle to Caribbean (average of $254). Flying from Seattle to Caribbean 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 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 May 1, 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 as you normally would.

Rainfall in Caribbean by month

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

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

Temperature in Caribbean by month

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

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

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 May 1, 2025.
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
4,294 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

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.
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
7.5
Good
1,414 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

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. 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.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $148. JetBlue flights start at $206 while deals on Delta start at $214 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 - Nassau Intl or Seattle/Tacoma Intl - Montego Bay Sangster Intl.

  • 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, September is the cheapest month in which you can book a flight from Seattle to Caribbean (average of $254). Flying from Seattle to Caribbean 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.

See more FAQs

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$233Average$346FlexibilityNo cancel feeOn-time65%
FrontierCheapest$250Average$556FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$286Average$621FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$327Average$708FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$340Average$675FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$340Average$698FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$447Average$882FlexibilityNo cancel feeOn-time83%
DeltaCheapest$452Average$675FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$565Average$766FlexibilityNo cancel feeOn-time63%
Air CanadaCheapest$649Average$923FlexibilityNo cancel feeOn-time67%

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