What airlines fly to Caribbean Islands?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Caribbean Islands from Seattle according to our data. American Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Caribbean Islands. Keep in mind that there are 9 different airlines that fly to Caribbean Islands on a routine basis, so you have a few additional options to choose from.

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

Frontier, Southwest, and JetBlue are the most popular carriers operating from Seattle/Tacoma Intl to Caribbean Islands

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

Prices for flights from Seattle/Tacoma Intl Airport to Caribbean Islands are refreshed on a daily basis.

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

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

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Caribbean Islands.

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

The necessary travel and health documents for your Caribbean Islands trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$165 Cheap Flights from Seattle to Caribbean Islands in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Caribbean Islands

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:15 pm - 11:00 am

SEA

SJU

13h 45m

2 stops

1:20 pm - 11:05 pm

SJU

SEA

12h 45m

2 stops

$451Southwest

Mon, Aug 24 - Tue, Sep 1

5:20 am - 9:05 pm

SEA

SJU

12h 45m

2 stops

1:45 pm - 11:40 pm

SJU

SEA

12h 55m

2 stops

$451Southwest

Wed, Sep 9 - Wed, Sep 16

5:00 am - 9:00 pm

SEA

SJU

12h 00m

2 stops

1:00 pm - 9:21 pm

SJU

SEA

12h 21m

1 stop

$452United Airlines

Sun, Nov 8 - Thu, Nov 12

5:00 am - 6:25 pm

SEA

SJU

9h 25m

1 stop

1:00 pm - 9:21 pm

SJU

SEA

12h 21m

1 stop

$452United Airlines

Sun, Nov 8 - Thu, Nov 12

10:57 pm - 11:56 am

SEA

SJU

9h 59m

1 stop

2:31 pm - 11:52 pm

SJU

SEA

12h 21m

1 stop

$456Delta

Mon, Oct 19 - Tue, Oct 27

11:59 pm - 1:21 pm

SEA

SJU

10h 22m

1 stop

2:31 pm - 10:03 pm

SJU

SEA

10h 32m

1 stop

$456Delta

Tue, Oct 20 - Tue, Oct 27

10:45 pm - 1:32 pm

SEA

SJU

11h 47m

1 stop

2:22 pm - 10:57 pm

SJU

SEA

11h 35m

1 stop

$466American Airlines

Thu, Sep 10 - Tue, Sep 15

12:58 pm - 9:43 am

SEA

SJU

17h 45m

1 stop

12:55 am - 9:29 am

SJU

SEA

11h 34m

1 stop

$466American Airlines

Tue, Aug 18 - Mon, Aug 24

10:10 am - 1:25 pm

SEA

MBJ

25h 15m

2 stops

1:50 pm - 9:27 am

MBJ

SEA

22h 37m

2 stops

$507Air Canada

Sat, Oct 31 - Thu, Nov 5

7:45 am - 12:50 pm

SEA

MBJ

27h 05m

1 stop

1:50 pm - 9:27 am

MBJ

SEA

22h 37m

2 stops

$512Air Canada

Sat, Oct 31 - Thu, Nov 5

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Southwest flights from Seattle to Caribbean Islands

Our best Southwest deals on Seattle to Caribbean Islands flight tickets

Southwest

Aug 25

SEA7:10 amSeattle/Tacoma Intl

11h 50m

2 stops

SJU10:00 pmSan Juan Luis Munoz Marin Intl

Sep 1

SJU1:20 pmSan Juan Luis Munoz Marin Intl

12h 45m

2 stops

SEA11:05 pmSeattle/Tacoma Intl

$451

Southwest

Sep 25

SEA6:25 pmSeattle/Tacoma Intl

13h 25m

2 stops

SJU10:50 amSan Juan Luis Munoz Marin Intl

Sep 30

SJU1:45 pmSan Juan Luis Munoz Marin Intl

12h 25m

2 stops

SEA11:10 pmSeattle/Tacoma Intl

$460

Southwest

Sep 21

SEA6:25 pmSeattle/Tacoma Intl

13h 35m

2 stops

SJU11:00 amSan Juan Luis Munoz Marin Intl

Sep 26

SJU11:45 amSan Juan Luis Munoz Marin Intl

14h 15m

2 stops

SEA11:00 pmSeattle/Tacoma Intl

$465

United Airlines flights from Seattle to Caribbean Islands

Our best United Airlines deals on Seattle to Caribbean Islands flight tickets

United Airlines

Nov 8

SEA5:00 amSeattle/Tacoma Intl

12h 00m

2 stops

SJU9:00 pmSan Juan Luis Munoz Marin Intl

Nov 12

SJU1:00 pmSan Juan Luis Munoz Marin Intl

12h 21m

1 stop

SEA9:21 pmSeattle/Tacoma Intl

$452

United Airlines

Sep 21

SEA11:00 pmSeattle/Tacoma Intl

12h 44m

1 stop

SJU2:44 pmSan Juan Luis Munoz Marin Intl

Sep 22

SJU1:00 amSan Juan Luis Munoz Marin Intl

13h 32m

2 stops

SEA11:32 amSeattle/Tacoma Intl

$461

United Airlines

Nov 2

SEA11:59 pmSeattle/Tacoma Intl

12h 37m

1 stop

SJU4:36 pmSan Juan Luis Munoz Marin Intl

Nov 7

SJU8:25 amSan Juan Luis Munoz Marin Intl

11h 07m

1 stop

SEA3:32 pmSeattle/Tacoma Intl

$480

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 8/24

6:15 pm-11:00 am

2 stops13h 45m

San Juan Luis Munoz Marin Intl

Tue 9/1

1:20 pm-11:05 pm

2 stops12h 45m

$451

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 9/9

5:20 am-9:05 pm

2 stops12h 45m

San Juan Luis Munoz Marin Intl

Wed 9/16

1:45 pm-11:40 pm

2 stops12h 55m

$451

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 11/8

5:00 am-9:00 pm

2 stops12h 00m

San Juan Luis Munoz Marin Intl

Thu 11/12

1:00 pm-9:21 pm

1 stop12h 21m

$452

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 11/8

5:00 am-6:25 pm

1 stop9h 25m

San Juan Luis Munoz Marin Intl

Thu 11/12

1:00 pm-9:21 pm

1 stop12h 21m

$452

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 10/19

10:57 pm-11:56 am

1 stop9h 59m

San Juan Luis Munoz Marin Intl

Tue 10/27

2:31 pm-11:52 pm

1 stop12h 21m

$456

Quickest round-trip

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 10/20

11:59 pm-1:21 pm

1 stop10h 22m

San Juan Luis Munoz Marin Intl

Tue 10/27

2:31 pm-10:03 pm

1 stop10h 32m

$456

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Thu 9/10

10:45 pm-1:32 pm

1 stop11h 47m

San Juan Luis Munoz Marin Intl

Tue 9/15

2:22 pm-10:57 pm

1 stop11h 35m

$466

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 8/18

12:58 pm-9:43 am

1 stop17h 45m

San Juan Luis Munoz Marin Intl

Mon 8/24

12:55 am-9:29 am

1 stop11h 34m

$466

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Sat 10/31

10:10 am-1:25 pm

2 stops25h 15m

Montego Bay Sangster Intl

Thu 11/5

1:50 pm-9:27 am

2 stops22h 37m

$507

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Sat 10/31

7:45 am-12:50 pm

1 stop27h 05m

Montego Bay Sangster Intl

Thu 11/5

1:50 pm-9:27 am

2 stops22h 37m

$512

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 Islands

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 Islands?

The month of January is, on average, the cheapest month to fly to Caribbean Islands from Seattle, with most prices found around $623. The month of October is another great option to travel to Caribbean Islands, with average flight prices from Seattle averaging around $647.

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

You are more likely to see cheaper flights to Caribbean Islands from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean Islands 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 Islands from Seattle for as low as $492 on momondo.

Can stopping save me money on Seattle to Caribbean Islands flights?

You could potentially save up to 4% on your flight if you consider stops on a Seattle to Caribbean Islands flight.

Cheap Seattle to Caribbean Islands flight deals and tips

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

Fastest flight time	7h 39m
Direct flights	None

The fastest flight from Seattle to Caribbean Islands takes 7h 39m

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

Search flight deals

Frequently asked questions about flying from Seattle to Caribbean Islands

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Caribbean Islands?
Prices for flights from Seattle/Tacoma Intl Airport to Caribbean Islands are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Caribbean Islands?
There are 9 operators available for flights from Seattle/Tacoma Intl Airport to Caribbean Islands as of July 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Caribbean Islands?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Caribbean Islands.
What documentation or ID do you need to fly to Caribbean Islands?
The necessary travel and health documents for your Caribbean Islands trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Caribbean Islands?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to Caribbean Islands is Boeing 737-800 Passenger/BBJ2 (winglets) (16.64% of total bookings). The next most popular plane models are Airbus A321neo (14.45%), Airbus A321-100/200 (8.51%), and Boeing 737 MAX 8 (8.49%).

Best airlines flying from Seattle to Caribbean Islands

Compare and see reviews for airlines that fly from Seattle to Caribbean Islands with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $175	Free Cancellation	Rating 5.6 2,755 reviews	Search Frontier flights
Delta	PriceFrom $199	Free Cancellation	Rating 7.8 8,483 reviews	Search Delta flights
United Airlines	PriceFrom $278	Free Cancellation	Rating 7.4 10,042 reviews	Search United Airlines flights
JetBlue	PriceFrom $327	Free Cancellation	Rating 7.1 3,026 reviews	Search JetBlue flights
Air Canada	PriceFrom $349	Free Cancellation	Rating 7.1 11,392 reviews	Search Air Canada flights
American Airlines	PriceFrom $364	Free Cancellation	Rating 7.1 11,842 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 4,229 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $587	Free Cancellation	Rating 7.9 12,718 reviews	Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to Caribbean Islands from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Caribbean Islands quick and easy, saving you time and money.

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

All flight searches from Seattle to Caribbean Islands on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Caribbean Islands from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Caribbean Islands from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.