What is the cheapest airline that flies from Seattle/Tacoma Intl to Caribbean?

Southwest, Air Canada, and American Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Caribbean

What airlines fly to Caribbean?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Caribbean from Seattle according to our data. American Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Caribbean. Keep in mind that there are 9 different airlines that fly to Caribbean on a routine basis, so you have a few additional options to choose from.

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?

There are 9 operators available for flights from Seattle/Tacoma Intl Airport to Caribbean as of August 2026.

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.

$190 Cheap Flights from Seattle to Caribbean in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Caribbean

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:02 pm - 9:24 am

SEA

SJU

13h 22m

2 stops

2:22 pm - 10:57 pm

SJU

SEA

11h 35m

1 stop

$441American Airlines

Wed, Sep 9 - Tue, Sep 15

5:02 pm - 9:24 am

SEA

SJU

13h 22m

2 stops

6:00 am - 7:48 pm

SJU

SEA

16h 48m

2 stops

$441American Airlines

Wed, Sep 9 - Wed, Sep 16

6:45 pm - 9:10 am

SEA

SJU

11h 25m

2 stops

6:25 am - 5:00 pm

SJU

SEA

13h 35m

2 stops

$460Southwest

Sun, Sep 13 - Sat, Sep 26

10:30 pm - 2:30 pm

SEA

SJU

13h 00m

1 stop

11:45 am - 11:00 pm

SJU

SEA

14h 15m

2 stops

$460Southwest

Sun, Sep 13 - Sat, Sep 26

8:00 am - 10:22 pm

SEA

SJU

10h 22m

1 stop

8:10 am - 6:59 pm

SJU

SEA

14h 49m

2 stops

$489United Airlines

Tue, Jan 19 - Wed, Jan 20

10:58 pm - 1:53 pm

SEA

SJU

11h 55m

1 stop

1:00 am - 11:03 am

SJU

SEA

13h 03m

1 stop

$489United Airlines

Mon, Sep 14 - Tue, Sep 15

6:00 am - 11:50 pm

SEA

SJU

13h 50m

1 stop

7:00 am - 7:23 pm

SJU

SEA

16h 23m

1 stop

$494Delta

Wed, Jan 20 - Sat, Jan 23

7:20 am - 11:55 pm

SEA

SJU

12h 35m

1 stop

7:00 am - 7:23 pm

SJU

SEA

16h 23m

1 stop

$494Delta

Sat, Jan 23 - Wed, Jan 27

9:40 pm - 1:39 pm

SEA

SJU

12h 59m

1 stop

10:30 am - 8:44 pm

SJU

SEA

13h 14m

1 stop

$501JetBlue

Thu, Sep 24 - Tue, Sep 29

9:40 pm - 1:39 pm

SEA

SJU

12h 59m

1 stop

10:30 am - 8:44 pm

SJU

SEA

13h 14m

1 stop

$501JetBlue

Sun, Sep 20 - Thu, Oct 1

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Southwest flights from Seattle to Caribbean

Our best Southwest deals on Seattle to Caribbean flight tickets

Southwest

Sep 13

SEA10:30 pmSeattle/Tacoma Intl

13h 00m

1 stop

SJU2:30 pmSan Juan Luis Munoz Marin Intl

Sep 26

SJU11:45 amSan Juan Luis Munoz Marin Intl

14h 15m

2 stops

SEA11:00 pmSeattle/Tacoma Intl

$460

Southwest

Sep 22

SEA11:05 pmSeattle/Tacoma Intl

11h 25m

2 stops

SJU1:30 pmSan Juan Luis Munoz Marin Intl

Sep 28

SJU5:00 amSan Juan Luis Munoz Marin Intl

12h 55m

2 stops

SEA2:55 pmSeattle/Tacoma Intl

$465

Southwest

Oct 30

SEA9:00 amSeattle/Tacoma Intl

13h 20m

2 stops

SJU1:20 amSan Juan Luis Munoz Marin Intl

Nov 3

SJU12:35 pmSan Juan Luis Munoz Marin Intl

13h 40m

2 stops

SEA10:15 pmSeattle/Tacoma Intl

$466

American Airlines flights from Seattle to Caribbean

Our best American Airlines deals on Seattle to Caribbean flight tickets

American Airlines

Sep 9

SEA5:02 pmSeattle/Tacoma Intl

13h 22m

2 stops

SJU9:24 amSan Juan Luis Munoz Marin Intl

Sep 16

SJU6:00 amSan Juan Luis Munoz Marin Intl

16h 48m

2 stops

SEA7:48 pmSeattle/Tacoma Intl

$441

American Airlines

Jan 20

SEA8:35 amSeattle/Tacoma Intl

11h 24m

2 stops

SJU11:59 pmSan Juan Luis Munoz Marin Intl

Jan 26

SJU6:00 amSan Juan Luis Munoz Marin Intl

18h 15m

1 stop

SEA8:15 pmSeattle/Tacoma Intl

$471

American Airlines

Oct 15

SEA9:00 pmSeattle/Tacoma Intl

16h 02m

1 stop

STX4:02 pmChristiansted Henry Rohlsen

Oct 19

STX1:57 pmChristiansted Henry Rohlsen

13h 02m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

$480

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 9/9

5:02 pm-9:24 am

2 stops13h 22m

San Juan Luis Munoz Marin Intl

Tue 9/15

2:22 pm-10:57 pm

1 stop11h 35m

$441

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 9/9

5:02 pm-9:24 am

2 stops13h 22m

San Juan Luis Munoz Marin Intl

Wed 9/16

6:00 am-7:48 pm

2 stops16h 48m

$441

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 9/13

6:45 pm-9:10 am

2 stops11h 25m

San Juan Luis Munoz Marin Intl

Sat 9/26

6:25 am-5:00 pm

2 stops13h 35m

$460

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 9/13

10:30 pm-2:30 pm

1 stop13h 00m

San Juan Luis Munoz Marin Intl

Sat 9/26

11:45 am-11:00 pm

2 stops14h 15m

$460

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 1/19

8:00 am-10:22 pm

1 stop10h 22m

San Juan Luis Munoz Marin Intl

Wed 1/20

8:10 am-6:59 pm

2 stops14h 49m

$489

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 9/14

10:58 pm-1:53 pm

1 stop11h 55m

San Juan Luis Munoz Marin Intl

Tue 9/15

1:00 am-11:03 am

1 stop13h 03m

$489

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 1/20

6:00 am-11:50 pm

1 stop13h 50m

San Juan Luis Munoz Marin Intl

Sat 1/23

7:00 am-7:23 pm

1 stop16h 23m

$494

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 1/23

7:20 am-11:55 pm

1 stop12h 35m

San Juan Luis Munoz Marin Intl

Wed 1/27

7:00 am-7:23 pm

1 stop16h 23m

$494

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Thu 9/24

9:40 pm-1:39 pm

1 stop12h 59m

San Juan Luis Munoz Marin Intl

Tue 9/29

10:30 am-8:44 pm

1 stop13h 14m

$501

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 9/20

9:40 pm-1:39 pm

1 stop12h 59m

San Juan Luis Munoz Marin Intl

Thu 10/1

10:30 am-8:44 pm

1 stop13h 14m

$501

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Caribbean?

In general, January 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 $566. If you don’t want to visit Caribbean in January, then you should wait until October to fly from Seattle, when ticket prices are also cheap, with an average price of $590.

How far in advance should I book a flight from Seattle 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 $584 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 $492 on momondo.

Can stopping save me money on Seattle to Caribbean flights?

You could potentially save up to 17% 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	8h 43m
Direct flights	None

The fastest flight from Seattle to Caribbean takes 8h 43m

There are no direct flights from Seattle to Caribbean. There are no popular flight routes from Seattle to Caribbean.

Search flight deals

Frequently asked questions about flying from Seattle to Caribbean

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?
There are 9 operators available for flights from Seattle/Tacoma Intl Airport to Caribbean as of August 2026.
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.

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
Frontier	PriceFrom $175	Free Cancellation	Rating 5.6 2,736 reviews	Search Frontier flights
Delta	PriceFrom $206	Free Cancellation	Rating 7.8 8,482 reviews	Search Delta flights
United Airlines	PriceFrom $278	Free Cancellation	Rating 7.4 10,059 reviews	Search United Airlines flights
JetBlue	PriceFrom $327	Free Cancellation	Rating 7.2 3,026 reviews	Search JetBlue flights
Air Canada	PriceFrom $349	Free Cancellation	Rating 7.1 11,425 reviews	Search Air Canada flights
American Airlines	PriceFrom $364	Free Cancellation	Rating 7.1 11,845 reviews	Search American Airlines flights
Sun Country Air	PriceFrom $454	Free Cancellation	Rating 6.7 319 reviews	Search Sun Country Air flights
Southwest	PriceFrom $474	Free Cancellation	Rating 8.0 4,221 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $587	Free Cancellation	Rating 7.9 12,760 reviews	Search Alaska Airlines 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.