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 61% 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.

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

United Airlines, Delta, and American Airlines are the most popular carriers operating from Seattle/Tacoma Intl 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 May 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.

$193 Cheap Flights from Seattle to Caribbean in 2026

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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.

7:28 pm - 1:30 pm

SEA

STT

15h 02m

2 stops

12:02 pm - 12:14 am

STT

SEA

15h 12m

2 stops

$440United Airlines

Sat, Oct 24 - Fri, Oct 30

10:29 pm - 12:07 pm

SEA

STT

10h 38m

1 stop

11:27 am - 9:23 pm

STT

SEA

12h 56m

1 stop

$465American Airlines

Mon, May 11 - Fri, May 15

11:04 pm - 12:56 pm

SEA

STT

10h 52m

1 stop

12:02 pm - 8:10 pm

STT

SEA

11h 08m

1 stop

$486United Airlines

Sat, Oct 24 - Fri, Oct 30

6:00 am - 11:59 pm

SEA

SJU

14h 59m

1 stop

7:00 am - 10:59 pm

SJU

SEA

18h 59m

1 stop

$494American Airlines

Mon, Jun 1 - Tue, Jun 16

5:00 am - 7:45 pm

SEA

SJU

11h 45m

2 stops

10:00 am - 8:45 pm

SJU

SEA

13h 45m

2 stops

$510Southwest

Tue, Jul 28 - Thu, Aug 13

11:05 pm - 1:20 pm

SEA

SJU

11h 15m

1 stop

2:35 pm - 12:10 am

SJU

SEA

12h 35m

2 stops

$546Delta

Fri, May 29 - Tue, Jun 2

2:15 pm - 2:00 pm

SEA

SXM

20h 45m

2 stops

3:00 pm - 11:25 am

SXM

SEA

23h 25m

2 stops

$634Southwest

Thu, Oct 1 - Thu, Oct 8

11:52 pm - 3:20 pm

SEA

AUA

12h 28m

1 stop

6:00 pm - 9:08 pm

AUA

SEA

30h 08m

1 stop

$634JetBlue

Tue, Jun 9 - Mon, Jun 15

11:52 pm - 3:20 pm

SEA

AUA

12h 28m

1 stop

1:35 pm - 9:08 pm

AUA

SEA

34h 33m

1 stop

$653JetBlue

Mon, Jun 8 - Mon, Jun 15

4:15 pm - 12:40 pm

SEA

AUA

17h 25m

1 stop

3:25 pm - 10:00 am

AUA

SEA

21h 35m

1 stop

$662Delta

Sat, May 30 - Sat, Jun 6

Southwest flights from Seattle to Caribbean

Our best Southwest deals on Seattle to Caribbean flight tickets

Southwest

Jul 28

SEA5:00 amSeattle/Tacoma Intl

11h 45m

2 stops

SJU7:45 pmSan Juan Luis Munoz Marin Intl

Aug 13

SJU10:00 amSan Juan Luis Munoz Marin Intl

13h 45m

2 stops

SEA8:45 pmSeattle/Tacoma Intl

$510

Southwest

Jul 13

SEA11:05 amSeattle/Tacoma Intl

10h 20m

1 stop

SJU12:25 amSan Juan Luis Munoz Marin Intl

Jul 23

SJU10:20 amSan Juan Luis Munoz Marin Intl

11h 10m

1 stop

SEA6:30 pmSeattle/Tacoma Intl

$566

Southwest

May 31

SEA5:35 amSeattle/Tacoma Intl

15h 00m

2 stops

SJU11:35 pmSan Juan Luis Munoz Marin Intl

Jun 9

SJU5:00 amSan Juan Luis Munoz Marin Intl

11h 20m

1 stop

SEA1:20 pmSeattle/Tacoma Intl

$586

American Airlines flights from Seattle to Caribbean

Our best American Airlines deals on Seattle to Caribbean flight tickets

American Airlines

May 14

SEA10:47 pmSeattle/Tacoma Intl

10h 48m

1 stop

STT12:35 pmSaint Thomas Island Cyril E King

May 19

STT5:05 pmSaint Thomas Island Cyril E King

20h 36m

2 stops

SEA10:41 amSeattle/Tacoma Intl

$440

American Airlines

May 5

SEA12:34 pmSeattle/Tacoma Intl

21h 01m

1 stop

STT12:35 pmSaint Thomas Island Cyril E King

May 12

STT5:05 pmSaint Thomas Island Cyril E King

20h 36m

2 stops

SEA10:41 amSeattle/Tacoma Intl

$465

American Airlines

Jun 1

SEA6:00 amSeattle/Tacoma Intl

14h 59m

1 stop

SJU11:59 pmSan Juan Luis Munoz Marin Intl

Jun 16

SJU7:00 amSan Juan Luis Munoz Marin Intl

18h 59m

1 stop

SEA10:59 pmSeattle/Tacoma Intl

$494

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Sat 10/24

7:28 pm-1:30 pm

2 stops15h 02m

Saint Thomas Island Cyril E King

Fri 10/30

12:02 pm-12:14 am

2 stops15h 12m

$440

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 5/11

10:29 pm-12:07 pm

1 stop10h 38m

Saint Thomas Island Cyril E King

Fri 5/15

11:27 am-9:23 pm

1 stop12h 56m

$465

Quickest round-trip

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Sat 10/24

11:04 pm-12:56 pm

1 stop10h 52m

Saint Thomas Island Cyril E King

Fri 10/30

12:02 pm-8:10 pm

1 stop11h 08m

$486

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 6/1

6:00 am-11:59 pm

1 stop14h 59m

San Juan Luis Munoz Marin Intl

Tue 6/16

7:00 am-10:59 pm

1 stop18h 59m

$494

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 7/28

5:00 am-7:45 pm

2 stops11h 45m

San Juan Luis Munoz Marin Intl

Thu 8/13

10:00 am-8:45 pm

2 stops13h 45m

$510

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/29

11:05 pm-1:20 pm

1 stop11h 15m

San Juan Luis Munoz Marin Intl

Tue 6/2

2:35 pm-12:10 am

2 stops12h 35m

$546

SeattleSimpson Bay

SEA - SXM

SEASXM

Seattle/Tacoma Intl

Thu 10/1

2:15 pm-2:00 pm

2 stops20h 45m

Simpson Bay Princess Juliana

Thu 10/8

3:00 pm-11:25 am

2 stops23h 25m

$634

SeattleOranjestad

SEA - AUA

SEAAUA

Seattle/Tacoma Intl

Tue 6/9

11:52 pm-3:20 pm

1 stop12h 28m

Oranjestad Reina Beatrix

Mon 6/15

6:00 pm-9:08 pm

1 stop30h 08m

$634

SeattleOranjestad

SEA - AUA

SEAAUA

Seattle/Tacoma Intl

Mon 6/8

11:52 pm-3:20 pm

1 stop12h 28m

Oranjestad Reina Beatrix

Mon 6/15

1:35 pm-9:08 pm

1 stop34h 33m

$653

SeattleOranjestad

SEA - AUA

SEAAUA

Seattle/Tacoma Intl

Sat 5/30

4:15 pm-12:40 pm

1 stop17h 25m

Oranjestad Reina Beatrix

Sat 6/6

3:25 pm-10:00 am

1 stop21h 35m

$662

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, May 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 $167. If you don’t want to visit Caribbean in May, then you should wait until December to fly from Seattle, when ticket prices are also cheap, with an average price of $180.

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 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 $581 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 $497 on momondo.

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	8h 45m
Direct flights	None

The fastest flight from Seattle to Caribbean takes 8h 45m

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 May 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.
What is the most popular plane model from Seattle to Caribbean?
Based on momondo bookings for flights between Seattle and Caribbean, the leading plane model is Boeing 737 MAX 9, making up 100.00% of the total bookings.

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 2,971 reviews	Search Frontier flights
Delta	PriceFrom $214	Free Cancellation	Rating 7.9 8,464 reviews	Search Delta flights
United Airlines	PriceFrom $278	Free Cancellation	Rating 7.4 9,678 reviews	Search United Airlines flights
JetBlue	PriceFrom $282	Free Cancellation	Rating 7.2 2,972 reviews	Search JetBlue flights
Air Canada	PriceFrom $349	Free Cancellation	Rating 7.1 10,987 reviews	Search Air Canada flights
American Airlines	PriceFrom $364	Free Cancellation	Rating 7.1 11,680 reviews	Search American Airlines flights
Sun Country Air	PriceFrom $454	Free Cancellation	Rating 6.8 336 reviews	Search Sun Country Air flights
Southwest	PriceFrom $496	Free Cancellation	Rating 8.0 4,315 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $587	Free Cancellation	Rating 7.9 12,321 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.