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Cheap flights from Seattle to Caribbean from C$ 445

SEA — SJU
18 Oct — 25 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Caribbean

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Caribbean

Fri 6/113:55 p.m. -
1 stop19h 35m
Thu 19/114:30 p.m. -
1 stop21h 35m
Deal found 13/9C$ 856
Wed 14/104:35 p.m. -
2 stops17h 54m
Wed 21/102:30 p.m. -
2 stops34h 29m
Deal found 16/9C$ 1,042
Sun 18/106:30 a.m. -
2 stops27h 59m
Thu 29/102:40 p.m. -
2 stops31h 57m
Deal found 17/9C$ 1,063
Mon 19/104:35 p.m. -
2 stops19h 01m
Tue 3/113:35 p.m. -
2 stops35h 58m
Deal found 16/9C$ 1,065
Tue 1/126:15 a.m. -
2 stops24h 47m
Tue 8/125:53 a.m. -
2 stops21h 51m
Deal found 13/9C$ 1,065
Fri 4/122:05 p.m. -
1 stop20h 45m
Sun 6/124:15 p.m. -
1 stop11h 46m
Deal found 13/9C$ 1,072
Tue 27/104:39 p.m. -
2 stops22h 41m
Sun 1/113:34 p.m. -
2 stops34h 16m
Deal found 16/9C$ 1,077
Sun 6/126:15 a.m. -
2 stops26h 59m
Tue 8/122:14 p.m. -
2 stops35h 44m
Deal found 14/9C$ 1,077
Mon 7/126:15 a.m. -
2 stops32h 08m
Mon 14/123:36 p.m. -
2 stops36h 08m
Deal found 17/9C$ 1,079
Wed 21/108:29 p.m. -
2 stops23h 27m
Sun 25/107:07 p.m. -
2 stops29h 43m
Deal found 14/9C$ 1,087
Tue 1/127:00 a.m. -
1 stop12h 46m
Mon 7/126:00 a.m. -
2 stops19h 21m
Deal found 13/9C$ 1,095
Sat 21/1111:17 p.m. -
1 stop11h 49m
Wed 25/116:00 a.m. -
1 stop19h 39m
Deal found 14/9C$ 1,100

Find flight deals from Seattle to Caribbean

Round-trip from

C$ 842

One-way from

C$ 445

Popular in

November

Cheapest in

January

Average price

C$ 971
Delta
  • Delta
  • 17/1-27/1
  • 2 total stops
  • 43h 16m total
  • Seattle to Caribbean
Search Deals
Air Canada
  • Air Canada
  • 29/10-31/12
  • 2 total stops
  • 21h 25m total
  • Seattle to Caribbean
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 143 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Caribbean that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCastries

SEA Seattle/Tacoma Intl - UVF Castries Hewanorra

SEAUVF

Seattle/Tacoma Intl

Thu 29/10

3:15 p.m.-3:40 p.m.

2 stops21h 25m

Castries Hewanorra

Wed 31/12

12:00 a.m.-8:00 p.m.

Nonstop0h 00m

C$ 445

SeattleSanto Domingo

SEA Seattle/Tacoma Intl - SDQ Santo Domingo Las Americas

SEASDQ

Seattle/Tacoma Intl

Mon 23/11

11:36 p.m.-3:52 p.m.

2 stops12h 16m

Santo Domingo Las Americas

Wed 31/12

12:00 a.m.-8:30 p.m.

Nonstop0h 00m

C$ 464

SeattleSanto Domingo

SEA Seattle/Tacoma Intl - SDQ Santo Domingo Las Americas

SEASDQ

Seattle/Tacoma Intl

Wed 6/1

3:30 p.m.-1:08 p.m.

2 stops17h 38m

Santo Domingo Las Americas

Wed 31/12

12:00 a.m.-8:30 p.m.

Nonstop0h 00m

C$ 509

SeattleSanto Domingo

SEA Seattle/Tacoma Intl - SDQ Santo Domingo Las Americas

SEASDQ

Seattle/Tacoma Intl

Tue 1/12

7:00 a.m.-11:46 p.m.

1 stop12h 46m

Santo Domingo Las Americas

Wed 31/12

12:00 a.m.-8:30 p.m.

Nonstop0h 00m

C$ 520

SeattleSanto Domingo

SEA Seattle/Tacoma Intl - SDQ Santo Domingo Las Americas

SEASDQ

Seattle/Tacoma Intl

Wed 6/1

10:54 a.m.-3:06 p.m.

3 stops24h 12m

Santo Domingo Las Americas

Wed 31/12

12:00 a.m.-8:30 p.m.

Nonstop0h 00m

C$ 548

SeattleSanto Domingo

SEA Seattle/Tacoma Intl - SDQ Santo Domingo Las Americas

SEASDQ

Seattle/Tacoma Intl

Fri 6/11

11:15 p.m.-11:46 p.m.

1 stop20h 31m

Santo Domingo Las Americas

Wed 31/12

12:00 a.m.-8:30 p.m.

Nonstop0h 00m

C$ 548

SeattleSanto Domingo

SEA Seattle/Tacoma Intl - SDQ Santo Domingo Las Americas

SEASDQ

Seattle/Tacoma Intl

Wed 7/10

9:40 p.m.-6:00 p.m.

1 stop17h 20m

Santo Domingo Las Americas

Wed 31/12

12:00 a.m.-8:30 p.m.

Nonstop0h 00m

C$ 553

SeattleSanto Domingo

SEA Seattle/Tacoma Intl - SDQ Santo Domingo Las Americas

SEASDQ

Seattle/Tacoma Intl

Fri 9/10

10:48 p.m.-10:46 p.m.

1 stop20h 58m

Santo Domingo Las Americas

Wed 31/12

12:00 a.m.-8:30 p.m.

Nonstop0h 00m

C$ 571

SeattleSanto Domingo

SEA Seattle/Tacoma Intl - SDQ Santo Domingo Las Americas

SEASDQ

Seattle/Tacoma Intl

Mon 23/11

12:20 p.m.-1:41 p.m.

3 stops21h 21m

Santo Domingo Las Americas

Wed 31/12

12:00 a.m.-8:30 p.m.

Nonstop0h 00m

C$ 604

SeattleSanto Domingo

SEA Seattle/Tacoma Intl - SDQ Santo Domingo Las Americas

SEASDQ

Seattle/Tacoma Intl

Thu 31/12

1:02 p.m.-11:46 p.m.

3 stops30h 44m

Santo Domingo Las Americas

Wed 31/12

12:00 a.m.-8:30 p.m.

Nonstop0h 00m

C$ 613

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 47 resultsSorted by cheapest first
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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

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 C$ 795). Flying from Seattle to Caribbean in December is currently the most expensive (average of C$ 1,114). 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.

How far ahead should I book a flight from Seattle to Caribbean?

The best time to book flights from Seattle to Caribbean is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Caribbean

Read reviews from past customers who have flown American Airlines from Seattle to Caribbean. 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.
American Airlines
7.1
Good
12,075 reviews
Check prices

Food

6.4

Crew

7.9

Comfort

7.2

Boarding

7.4

Overall

7.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Linda,Jul 2026

ROA - CLT

Very helpful and friendly people who pushed me where I needed to go
American Airlines
7.1
Good
12,075 reviews
American Airlines
7.1
Good
12,075 reviews
Check prices

Food

6.4

Crew

7.9

Comfort

7.2

Boarding

7.4

Overall

7.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Linda,Jul 2026

ROA - CLT

Very helpful and friendly people who pushed me where I needed to go

Related info for your journey

  • What airport do you fly from for flights from Seattle to Caribbean?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Caribbean. It is only a 18.4 km journey to Seattle/Tacoma Intl (SEA) from Seattle’s city centre.

  • How long is the flight from Seattle to Caribbean?

    For as low as C$ 1,100, Delta can have you in Caribbean from Seattle in 11h 49m. The distance from Seattle to Caribbean is about 5724 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Most travellers choose Seattle/Tacoma Intl - Bridgetown Grantley Adams Intl, Seattle/Tacoma Intl - Willemstad Hato Int. or Seattle/Tacoma Intl - The Valley Wallblake Intl when deciding on the best route from Seattle to Caribbean.

  • 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 C$ 795). Flying from Seattle to Caribbean in December is currently the most expensive (average of C$ 1,114). 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

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Seattle to Caribbean

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 563AverageC$ 894FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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How does Cheapflights help users find flights from Seattle to Caribbean?

Cheapflights helps you search for flights from Seattle to Caribbean via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Caribbean?

Cheapflights helps you find that perfect flight to Caribbean from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Seattle to Caribbean with no change fees?

Certainly. Search results for flights to Caribbean from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to Caribbean become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Caribbean flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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