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

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

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 61% 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.

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 10 operators available for flights from Seattle/Tacoma Intl Airport to Caribbean Islands as of March 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.

$161 Cheap Flights from Seattle to Caribbean Islands in 2026

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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.

11:11 pm - 12:52 pm

SEA

SJU

10h 41m

1 stop

1:25 pm - 10:31 pm

SJU

SEA

12h 06m

1 stop

$416Delta

Sat, Apr 25 - Thu, Apr 30

7:09 am - 4:32 am

SEA

SJU

18h 23m

1 stop

11:59 pm - 9:35 am

SJU

SEA

12h 36m

1 stop

$434American Airlines

Sat, May 2 - Mon, May 4

10:40 pm - 12:12 pm

SEA

SJU

10h 32m

1 stop

7:15 am - 7:59 pm

SJU

SEA

15h 44m

1 stop

$435Delta

Mon, Apr 27 - Fri, May 1

7:05 pm - 1:08 pm

SEA

STT

15h 03m

2 stops

2:10 pm - 10:42 pm

STT

SEA

11h 32m

1 stop

$440United Airlines

Sun, Apr 19 - Wed, Apr 22

6:00 am - 11:02 pm

SEA

SJU

14h 02m

1 stop

11:59 pm - 10:48 am

SJU

SEA

13h 49m

1 stop

$440American Airlines

Wed, Apr 29 - Thu, May 14

11:59 pm - 3:31 pm

SEA

STT

12h 32m

1 stop

1:22 pm - 11:46 pm

STT

SEA

13h 24m

1 stop

$453United Airlines

Thu, Apr 9 - Thu, Apr 16

8:00 am - 12:55 pm

SEA

NAS

25h 55m

1 stop

9:10 pm - 9:53 pm

NAS

SEA

27h 43m

1 stop

$497Air Canada

Tue, Apr 14 - Mon, Apr 20

8:00 am - 12:55 pm

SEA

NAS

25h 55m

1 stop

1:50 pm - 9:53 pm

NAS

SEA

11h 03m

1 stop

$507Air Canada

Sun, Apr 12 - Wed, Apr 15

11:45 pm - 1:55 pm

SEA

MBJ

12h 10m

1 stop

1:50 pm - 12:20 am

MBJ

SEA

12h 30m

1 stop

$529Southwest

Wed, Jun 3 - Wed, Jun 10

5:35 pm - 10:45 am

SEA

MBJ

15h 10m

2 stops

11:45 am - 12:20 am

MBJ

SEA

14h 35m

2 stops

$534Southwest

Wed, Jun 3 - Wed, Jun 10

Southwest flights from Seattle to Caribbean Islands

Our best Southwest deals on Seattle to Caribbean Islands flight tickets

Southwest

Aug 19

SEA10:30 pmSeattle/Tacoma Intl

13h 00m

1 stop

SJU2:30 pmSan Juan Luis Munoz Marin Intl

Aug 24

SJU6:00 amSan Juan Luis Munoz Marin Intl

11h 55m

2 stops

SEA2:55 pmSeattle/Tacoma Intl

$494

Southwest

Jul 7

SEA8:50 amSeattle/Tacoma Intl

12h 55m

1 stop

SJU12:45 amSan Juan Luis Munoz Marin Intl

Jul 14

SJU5:00 amSan Juan Luis Munoz Marin Intl

11h 20m

1 stop

SEA1:20 pmSeattle/Tacoma Intl

$500

Southwest

May 3

SEA4:45 pmSeattle/Tacoma Intl

13h 25m

2 stops

SJU9:10 amSan Juan Luis Munoz Marin Intl

May 19

SJU11:25 amSan Juan Luis Munoz Marin Intl

15h 10m

2 stops

SEA11:35 pmSeattle/Tacoma Intl

$520

American Airlines flights from Seattle to Caribbean Islands

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

American Airlines

May 2

SEA7:09 amSeattle/Tacoma Intl

18h 23m

1 stop

SJU4:32 amSan Juan Luis Munoz Marin Intl

May 4

SJU11:59 pmSan Juan Luis Munoz Marin Intl

12h 36m

1 stop

SEA9:35 amSeattle/Tacoma Intl

$434

American Airlines

Apr 29

SEA6:00 amSeattle/Tacoma Intl

14h 02m

1 stop

SJU11:02 pmSan Juan Luis Munoz Marin Intl

May 14

SJU11:59 pmSan Juan Luis Munoz Marin Intl

13h 49m

1 stop

SEA10:48 amSeattle/Tacoma Intl

$440

American Airlines

Apr 26

SEA10:25 amSeattle/Tacoma Intl

9h 37m

1 stop

SJU11:02 pmSan Juan Luis Munoz Marin Intl

May 2

SJU6:00 amSan Juan Luis Munoz Marin Intl

18h 23m

1 stop

SEA9:23 pmSeattle/Tacoma Intl

$443

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 4/25

11:11 pm-12:52 pm

1 stop10h 41m

San Juan Luis Munoz Marin Intl

Thu 4/30

1:25 pm-10:31 pm

1 stop12h 06m

$416

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 5/2

7:09 am-4:32 am

1 stop18h 23m

San Juan Luis Munoz Marin Intl

Mon 5/4

11:59 pm-9:35 am

1 stop12h 36m

$434

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 4/27

10:40 pm-12:12 pm

1 stop10h 32m

San Juan Luis Munoz Marin Intl

Fri 5/1

7:15 am-7:59 pm

1 stop15h 44m

$435

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Sun 4/19

7:05 pm-1:08 pm

2 stops15h 03m

Saint Thomas Island Cyril E King

Wed 4/22

2:10 pm-10:42 pm

1 stop11h 32m

$440

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 4/29

6:00 am-11:02 pm

1 stop14h 02m

San Juan Luis Munoz Marin Intl

Thu 5/14

11:59 pm-10:48 am

1 stop13h 49m

$440

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Thu 4/9

11:59 pm-3:31 pm

1 stop12h 32m

Saint Thomas Island Cyril E King

Thu 4/16

1:22 pm-11:46 pm

1 stop13h 24m

$453

SeattleNassau

SEA - NAS

SEANAS

Seattle/Tacoma Intl

Tue 4/14

8:00 am-12:55 pm

1 stop25h 55m

Nassau Intl

Mon 4/20

9:10 pm-9:53 pm

1 stop27h 43m

$497

SeattleNassau

SEA - NAS

SEANAS

Seattle/Tacoma Intl

Sun 4/12

8:00 am-12:55 pm

1 stop25h 55m

Nassau Intl

Wed 4/15

1:50 pm-9:53 pm

1 stop11h 03m

$507

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Wed 6/3

11:45 pm-1:55 pm

1 stop12h 10m

Montego Bay Sangster Intl

Wed 6/10

1:50 pm-12:20 am

1 stop12h 30m

$529

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Wed 6/3

5:35 pm-10:45 am

2 stops15h 10m

Montego Bay Sangster Intl

Wed 6/10

11:45 am-12:20 am

2 stops14h 35m

$534

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 October is, on average, the cheapest month to fly to Caribbean Islands from Seattle, with most prices found around $429. The month of September is another great option to travel to Caribbean Islands, with average flight prices from Seattle averaging around $456.

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

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

How far in advance should I book a flight 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 $576 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 $490 on momondo.

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

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Caribbean Islands 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 Islands flights?

No. A direct flight is the cheapest option for a flight between Seattle to Caribbean Islands.

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 30m
Direct flights	None

The fastest flight from Seattle to Caribbean Islands takes 7h 30m

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

Search flight deals

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 10 operators available for flights from Seattle/Tacoma Intl Airport to Caribbean Islands as of March 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) (17.04% of total bookings). The next most popular plane models are Airbus A321neo (12.19%), Boeing 787-9 Dreamliner (8.44%), and Boeing 737 MAX 8 (7.61%).

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
Delta	PriceFrom $199	Free Cancellation	Rating 7.9 8,292 reviews	Search Delta flights
Spirit Airlines	PriceFrom $218	Free Cancellation	Rating 6.3 8,519 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $282	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
United Airlines	PriceFrom $292	Free Cancellation	Rating 7.4 9,426 reviews	Search United Airlines flights
American Airlines	PriceFrom $363	Free Cancellation	Rating 7.1 11,467 reviews	Search American Airlines flights
Air Canada	PriceFrom $368	Free Cancellation	Rating 7.1 10,800 reviews	Search Air Canada flights
Sun Country Air	PriceFrom $454	Free Cancellation	Rating 6.8 342 reviews	Search Sun Country Air flights
Southwest	PriceFrom $521	Free Cancellation	Rating 8.0 4,317 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $598	Free Cancellation	Rating 8.0 12,044 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.