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Cheap flights from Seattle to Caribbean from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Caribbean departing on 2/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Caribbean

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:13 pm - 10:00 am
SEA
-
SJU
11h 47m
2 stops
American Airlines Logo
3:39 pm - 11:04 pm
SJU
-
SEA
11h 25m
1 stop
$379American Airlines
Mon, Mar 2 - Tue, Mar 3
United Airlines Logo
7:00 am - 9:00 pm
SEA
-
SJU
10h 00m
1 stop
United Airlines Logo
2:05 am - 11:14 am
SJU
-
SEA
13h 09m
1 stop
$384United Airlines
Wed, Feb 25 - Tue, Mar 3
United Airlines Logo
7:00 am - 8:34 pm
SEA
-
SJU
10h 34m
1 stop
United Airlines Logo
1:00 am - 11:48 am
SJU
-
SEA
13h 48m
2 stops
$418United Airlines
Wed, Apr 1 - Tue, Apr 14
American Airlines Logo
12:59 am - 2:53 pm
SEA
-
MBJ
10h 54m
1 stop
American Airlines Logo
11:07 am - 11:40 pm
MBJ
-
SEA
15h 33m
1 stop
$419American Airlines
Tue, Feb 24 - Wed, Mar 4
Southwest Logo
6:25 pm - 10:30 am
SEA
-
SJU
12h 05m
2 stops
Southwest Logo
5:55 am - 7:35 pm
SJU
-
SEA
16h 40m
2 stops
$421Southwest
Sun, Mar 1 - Tue, Mar 10
Southwest Logo
6:45 am - 12:35 am
SEA
-
SJU
13h 50m
2 stops
Southwest Logo
10:20 am - 9:50 pm
SJU
-
SEA
15h 30m
2 stops
$424Southwest
Wed, Feb 25 - Wed, Mar 4
Delta Logo
9:55 pm - 12:32 pm
SEA
-
MBJ
11h 37m
1 stop
Delta Logo
2:42 pm - 11:38 pm
MBJ
-
SEA
10h 56m
1 stop
$432Delta
Wed, Mar 4 - Sun, Mar 8
Delta Logo
7:00 pm - 12:32 pm
SEA
-
MBJ
14h 32m
2 stops
Delta Logo
2:42 pm - 11:38 pm
MBJ
-
SEA
10h 56m
1 stop
$437Delta
Wed, Mar 4 - Sun, Mar 8
Air Canada Logo
8:00 pm - 2:50 pm
SEA
-
SXM
39h 50m
2 stops
Air Canada Logo
4:00 pm - 10:10 pm
SXM
-
SEA
33h 10m
2 stops
$552Air Canada
Wed, Apr 8 - Fri, Apr 17
Air Canada Logo
8:00 am - 2:50 pm
SEA
-
SXM
27h 50m
1 stop
Air Canada Logo
4:00 pm - 3:03 pm
SXM
-
SEA
26h 03m
2 stops
$562Air Canada
Thu, Apr 9 - Mon, Apr 20

United Airlines flights from Seattle to Caribbean

Our best United Airlines deals on Seattle to Caribbean flight tickets
United Airlines
Feb 25
SEA7:00 amSeattle/Tacoma Intl
10h 00m
1 stop
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Mar 3
SJU2:05 amSan Juan Luis Munoz Marin Intl
13h 09m
1 stop
SEA11:14 amSeattle/Tacoma Intl
$384
United Airlines
Apr 1
SEA7:00 amSeattle/Tacoma Intl
10h 34m
1 stop
SJU8:34 pmSan Juan Luis Munoz Marin Intl
Apr 14
SJU1:00 amSan Juan Luis Munoz Marin Intl
13h 48m
2 stops
SEA11:48 amSeattle/Tacoma Intl
$418
United Airlines
Feb 28
SEA7:00 amSeattle/Tacoma Intl
11h 22m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Mar 9
SJU1:05 amSan Juan Luis Munoz Marin Intl
13h 05m
1 stop
SEA11:10 amSeattle/Tacoma Intl
$419

Southwest flights from Seattle to Caribbean

Our best Southwest deals on Seattle to Caribbean flight tickets
Southwest
Mar 1
SEA6:25 pmSeattle/Tacoma Intl
12h 05m
2 stops
SJU10:30 amSan Juan Luis Munoz Marin Intl
Mar 10
SJU5:55 amSan Juan Luis Munoz Marin Intl
16h 40m
2 stops
SEA7:35 pmSeattle/Tacoma Intl
$421
Southwest
Feb 25
SEA6:45 amSeattle/Tacoma Intl
13h 50m
2 stops
SJU12:35 amSan Juan Luis Munoz Marin Intl
Mar 4
SJU10:20 amSan Juan Luis Munoz Marin Intl
15h 30m
2 stops
SEA9:50 pmSeattle/Tacoma Intl
$424
Southwest
Apr 29
SEA6:00 amSeattle/Tacoma Intl
13h 40m
2 stops
SJU10:40 pmSan Juan Luis Munoz Marin Intl
May 5
SJU5:05 amSan Juan Luis Munoz Marin Intl
16h 25m
2 stops
SEA6:30 pmSeattle/Tacoma Intl
$436

momondo 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, momondo users made 832,500 searches. Data last updated January 29, 2026.
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

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 3/2

6:13 pm-10:00 am

2 stops11h 47m

San Juan Luis Munoz Marin Intl

Tue 3/3

3:39 pm-11:04 pm

1 stop11h 25m

$379

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 2/25

7:00 am-9:00 pm

1 stop10h 00m

San Juan Luis Munoz Marin Intl

Tue 3/3

2:05 am-11:14 am

1 stop13h 09m

$384

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 4/1

7:00 am-8:34 pm

1 stop10h 34m

San Juan Luis Munoz Marin Intl

Tue 4/14

1:00 am-11:48 am

2 stops13h 48m

$418

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Tue 2/24

12:59 am-2:53 pm

1 stop10h 54m

Montego Bay Sangster Intl

Wed 3/4

11:07 am-11:40 pm

1 stop15h 33m

$419

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 3/1

6:25 pm-10:30 am

2 stops12h 05m

San Juan Luis Munoz Marin Intl

Tue 3/10

5:55 am-7:35 pm

2 stops16h 40m

$421

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 2/25

6:45 am-12:35 am

2 stops13h 50m

San Juan Luis Munoz Marin Intl

Wed 3/4

10:20 am-9:50 pm

2 stops15h 30m

$424

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Wed 3/4

9:55 pm-12:32 pm

1 stop11h 37m

Montego Bay Sangster Intl

Sun 3/8

2:42 pm-11:38 pm

1 stop10h 56m

$432

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Wed 3/4

7:00 pm-12:32 pm

2 stops14h 32m

Montego Bay Sangster Intl

Sun 3/8

2:42 pm-11:38 pm

1 stop10h 56m

$437

SeattleSimpson Bay

SEA - SXM

SEASXM

Seattle/Tacoma Intl

Wed 4/8

8:00 pm-2:50 pm

2 stops39h 50m

Simpson Bay Princess Juliana

Fri 4/17

4:00 pm-10:10 pm

2 stops33h 10m

$552

SeattleSimpson Bay

SEA - SXM

SEASXM

Seattle/Tacoma Intl

Thu 4/9

8:00 am-2:50 pm

1 stop27h 50m

Simpson Bay Princess Juliana

Mon 4/20

4:00 pm-3:03 pm

2 stops26h 03m

$562

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Seattle to Caribbean

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Caribbean?

In general, October is the cheapest month to fly from Seattle to Caribbean. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $431. If you don’t want to visit Caribbean in October, then you should wait until September to fly from Seattle, when ticket prices are also cheap, with an average price of $474.

What is the cheapest Seattle/Tacoma Intl to Caribbean flight route?

Fly from Seattle/Tacoma Intl to Nassau Intl for the best Seattle/Tacoma Intl - Caribbean flight prices

How far in advance should I book a flight to Caribbean?

You are more likely to see cheaper flights to Caribbean from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean for around $580 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Caribbean from Seattle for as low as $498 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Caribbean flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Caribbean flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Caribbean flights?

You could potentially save up to 46% on your flight if you consider stops on a Seattle to Caribbean flight.

Cheap Seattle to Caribbean flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Caribbean

Fastest flight time

7h 47m

Direct flights

None
The fastest flight from Seattle to Caribbean takes 7h 47m
There are no direct flights from Seattle to Caribbean. There are no popular flight routes from Seattle to Caribbean.
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Caribbean?

    Prices for flights from Seattle/Tacoma Intl Airport to Caribbean refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Caribbean?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Caribbean?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Caribbean.

  • What documentation or ID do you need to fly to Caribbean?

    The travel and health documents you'll need for your trip to Caribbean may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Caribbean. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Caribbean?

Best airlines flying from Seattle to Caribbean

Compare and see reviews for airlines that fly from Seattle to Caribbean with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $175Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $191Free CancellationRating
6.3
8,394 reviews
Search Spirit Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
8,127 reviews
Search Delta flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
JetBluePriceFrom $282Free CancellationRating
7.2
2,891 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $340Free CancellationRating
8.0
11,808 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $363Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights
Air CanadaPriceFrom $368Free CancellationRating
7.1
10,667 reviews
Search Air Canada flights
Sun Country AirPriceFrom $454Free CancellationRating
6.9
343 reviews
Search Sun Country Air flights
SouthwestPriceFrom $521Free CancellationRating
8.0
4,267 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Caribbean?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Caribbean for you.

Can I find flights from Seattle to Caribbean with flexible booking policies on momondo?

momondo does allow users to show only those flights to Caribbean from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Caribbean?

Once you have performed a search for Seattle to Caribbean flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seattle to Caribbean right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Caribbean from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Caribbean trip

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Find better results for your trip to Caribbean

Popular cities in Caribbean

Popular flights according to clicks in the last 7 days on momondo
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Flights to Simpson Bayfrom $170
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