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Cheap flights from Seattle to Caribbean Islands from $168

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 Islands departing on 11/15. 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 Islands

Cheap round-trip flights

Multiple Airlines Logo
10:16 am - 4:23 pmSEA-SJU
27h 07m1 stop
Multiple Airlines Logo
4:04 pm - 12:13 pmSJU-SEA
23h 09m2 stops
$362Multiple Airlines
Find Deal
Fri, Oct 24 - Thu, Oct 30
United Airlines Logo
7:13 pm - 11:49 amSEA-SJU
13h 36m2 stops
United Airlines Logo
1:20 pm - 10:41 pmSJU-SEA
12h 21m1 stop
$363United Airlines
Find Deal
Mon, Oct 27 - Thu, Oct 30
JetBlue Logo
11:40 pm - 4:42 pmSEA-SJU
14h 02m1 stop
JetBlue Logo
1:25 pm - 10:36 pmSJU-SEA
12h 11m1 stop
$370JetBlue
Find Deal
Mon, Oct 20 - Sat, Oct 25
American Airlines Logo
10:02 am - 4:55 amSEA-SJU
14h 53m1 stop
American Airlines Logo
4:15 pm - 11:07 pmSJU-SEA
10h 52m1 stop
$375American Airlines
Find Deal
Mon, Mar 2 - Tue, Mar 3
American Airlines Logo
1:35 am - 2:43 pmSEA-SJU
9h 08m1 stop
American Airlines Logo
6:40 am - 9:56 pmSJU-SEA
19h 16m1 stop
$380American Airlines
Find Deal
Tue, Feb 17 - Wed, Feb 25
JetBlue Logo
11:56 pm - 2:54 pmSEA-SJU
11h 58m1 stop
JetBlue Logo
1:25 pm - 10:36 pmSJU-SEA
12h 11m1 stop
$386JetBlue
Find Deal
Tue, Oct 21 - Fri, Oct 24
Delta Logo
9:59 pm - 12:28 pmSEA-PUJ
11h 29m1 stop
Delta Logo
2:49 pm - 11:54 pmPUJ-SEA
12h 05m1 stop
$421Delta
Find Deal
Tue, Oct 21 - Thu, Oct 30
Delta Logo
3:40 pm - 12:28 pmSEA-PUJ
17h 48m1 stop
Delta Logo
3:56 pm - 11:54 pmPUJ-SEA
10h 58m1 stop
$422Delta
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Thu, Oct 23 - Sat, Nov 1
Southwest Logo
6:45 pm - 9:55 amSEA-SJU
12h 10m2 stops
Southwest Logo
7:40 am - 8:00 pmSJU-SEA
16h 20m2 stops
$437Southwest
Find Deal
Mon, Oct 27 - Fri, Nov 7
Southwest Logo
6:35 am - 12:05 amSEA-SJU
13h 30m2 stops
Southwest Logo
7:00 am - 6:40 pmSJU-SEA
15h 40m2 stops
$439Southwest
Find Deal
Mon, Feb 9 - Thu, Feb 19

Southwest flights from Seattle to Caribbean Islands

Our best Southwest deals on Seattle to Caribbean Islands flight tickets
Southwest
Oct 27
SEA6:45 pmSeattle/Tacoma Intl
12h 10m
2 stops
SJU9:55 amSan Juan Luis Munoz Marin Intl
Nov 7
SJU7:40 amSan Juan Luis Munoz Marin Intl
16h 20m
2 stops
SEA8:00 pmSeattle/Tacoma Intl
$437
Find similar
Southwest
Feb 9
SEA6:35 amSeattle/Tacoma Intl
13h 30m
2 stops
SJU12:05 amSan Juan Luis Munoz Marin Intl
Feb 19
SJU7:00 amSan Juan Luis Munoz Marin Intl
15h 40m
2 stops
SEA6:40 pmSeattle/Tacoma Intl
$439
Find similar
Southwest
Oct 1
SEA8:25 amSeattle/Tacoma Intl
11h 20m
2 stops
SJU10:45 pmSan Juan Luis Munoz Marin Intl
Oct 8
SJU10:50 amSan Juan Luis Munoz Marin Intl
15h 55m
2 stops
SEA11:45 pmSeattle/Tacoma Intl
$643
Find similar

JetBlue flights from Seattle to Caribbean Islands

Our best JetBlue deals on Seattle to Caribbean Islands flight tickets
JetBlue
Oct 20
SEA11:40 pmSeattle/Tacoma Intl
14h 02m
1 stop
SJU4:42 pmSan Juan Luis Munoz Marin Intl
Oct 25
SJU1:25 pmSan Juan Luis Munoz Marin Intl
12h 11m
1 stop
SEA10:36 pmSeattle/Tacoma Intl
$370
Find similar
JetBlue
Oct 21
SEA11:56 pmSeattle/Tacoma Intl
11h 58m
1 stop
SJU2:54 pmSan Juan Luis Munoz Marin Intl
Oct 24
SJU1:25 pmSan Juan Luis Munoz Marin Intl
12h 11m
1 stop
SEA10:36 pmSeattle/Tacoma Intl
$386
Find similar
JetBlue
Oct 22
SEA11:40 pmSeattle/Tacoma Intl
14h 17m
1 stop
SJU4:57 pmSan Juan Luis Munoz Marin Intl
Oct 24
SJU1:25 pmSan Juan Luis Munoz Marin Intl
12h 11m
1 stop
SEA10:36 pmSeattle/Tacoma Intl
$421
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Caribbean Islands 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 September 25, 2025.
Use the filters below to find and compare flights from Seattle to Caribbean Islands that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 10/24

10:16 am-4:23 pm

1 stop27h 07m

San Juan Luis Munoz Marin Intl

Thu 10/30

4:04 pm-12:13 pm

2 stops23h 09m

$362

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 10/27

7:13 pm-11:49 am

2 stops13h 36m

San Juan Luis Munoz Marin Intl

Thu 10/30

1:20 pm-10:41 pm

1 stop12h 21m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 10/20

11:40 pm-4:42 pm

1 stop14h 02m

San Juan Luis Munoz Marin Intl

Sat 10/25

1:25 pm-10:36 pm

1 stop12h 11m

$370

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 3/2

10:02 am-4:55 am

1 stop14h 53m

San Juan Luis Munoz Marin Intl

Tue 3/3

4:15 pm-11:07 pm

1 stop10h 52m

$375

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 2/17

1:35 am-2:43 pm

1 stop9h 08m

San Juan Luis Munoz Marin Intl

Wed 2/25

6:40 am-9:56 pm

1 stop19h 16m

$380

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 10/21

11:56 pm-2:54 pm

1 stop11h 58m

San Juan Luis Munoz Marin Intl

Fri 10/24

1:25 pm-10:36 pm

1 stop12h 11m

$386

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Tue 10/21

9:59 pm-12:28 pm

1 stop11h 29m

Punta Cana

Thu 10/30

2:49 pm-11:54 pm

1 stop12h 05m

$421

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Thu 10/23

3:40 pm-12:28 pm

1 stop17h 48m

Punta Cana

Sat 11/1

3:56 pm-11:54 pm

1 stop10h 58m

$422

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 10/27

6:45 pm-9:55 am

2 stops12h 10m

San Juan Luis Munoz Marin Intl

Fri 11/7

7:40 am-8:00 pm

2 stops16h 20m

$437

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 2/9

6:35 am-12:05 am

2 stops13h 30m

San Juan Luis Munoz Marin Intl

Thu 2/19

7:00 am-6:40 pm

2 stops15h 40m

$439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Caribbean Islands from

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

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 $468. The month of January is another great option to travel to Caribbean Islands, with average flight prices from Seattle averaging around $474.

What is the cheapest day to depart on your flight to Caribbean Islands?

The cheapest day to depart from Seattle to Caribbean Islands is on a Tuesday. Travelers who choose to depart for Caribbean Islands on a Tuesday will often find tickets for as low as $504. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $693. These prices are subject to change though, so be sure to set up a Price Alert for flights to Caribbean Islands.

What is the cheapest time of day to depart on your flight to Caribbean Islands?

According to our data, the cheapest time of day to fly to Caribbean Islands is at noon. momondo users have found flights departing from Seattle to Caribbean Islands at noon for as low as $465. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $584. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $592 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 $514 on momondo.

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

There are 2 cabin classes 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?

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

Direct flights

None
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?

  • 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?

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
FrontierPriceFrom $194Free CancellationRating
5.8
3,163 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $208Free CancellationRating
6.3
8,042 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $292Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
JetBluePriceFrom $326Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $340Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $357Free CancellationRating
7.9
7,973 reviews
Search Delta flights
American AirlinesPriceFrom $357Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Sun Country AirPriceFrom $447Free CancellationRating
6.9
333 reviews
Search Sun Country Air flights
SouthwestPriceFrom $521Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
Air CanadaPriceFrom $632Free CancellationRating
7.1
10,000 reviews
Search Air Canada 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.

An easier way to manage your Caribbean Islands trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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