$223 Find Cheap Flights from Seattle to Caribbean

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Caribbean departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Seattle to Caribbean

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Punta Cana
Punta Cana1 stop$545
Santo Domingo
Santo Domingo1 stop$532
Montego Bay
Montego Bay1 stop$532
Oranjestad
Oranjestad1 stop$633
Nassau
Nassau2 stops$589
Kingston
Kingston1 stop$668
Simpson Bay
Simpson Bay2 stops$486
Providenciales
Providenciales1 stop$599
Port of Spain
Port of Spain2 stops$597
Bridgetown
Bridgetown1 stop$691
George Town
George Town2 stops$558
Willemstad
Willemstad2 stops$685
Aguadilla
Aguadilla1 stop$584
Puerto Plata
Puerto Plata2 stops$670
St. John's
St. John's2 stops$776
Punta Cana
Punta Cana1 stop$545
Santo Domingo
Santo Domingo1 stop$532
Montego Bay
Montego Bay1 stop$532
Oranjestad
Oranjestad1 stop$633
Nassau
Nassau2 stops$589
Kingston
Kingston1 stop$668
Simpson Bay
Simpson Bay2 stops$486
Providenciales
Providenciales1 stop$599
Port of Spain
Port of Spain2 stops$597
Bridgetown
Bridgetown1 stop$691
George Town
George Town2 stops$558
Willemstad
Willemstad2 stops$685
Aguadilla
Aguadilla1 stop$584
Puerto Plata
Puerto Plata2 stops$670
St. John's
St. John's2 stops$776

Book Cheap Seattle to Caribbean Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Caribbean that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Caribbean

Sun, Aug 16 - Sat, Sep 5
United Airlines Logo
11:59 pm - 3:42 pm
SEA
-
SJU
12h 43m
1 stop
United Airlines Logo
7:00 am - 6:29 pm
SJU
-
SEA
14h 29m
2 stops
$479United Airlines
Sat, Oct 24 - Mon, Nov 2
Southwest Logo
7:20 pm - 10:35 am
SEA
-
SJU
12h 15m
2 stops
Southwest Logo
7:30 am - 6:00 pm
SJU
-
SEA
14h 30m
2 stops
$494Southwest
Sat, Nov 14 - Sat, Nov 21
American Airlines Logo
12:59 am - 3:02 pm
SEA
-
SJU
10h 03m
1 stop
American Airlines Logo
3:53 pm - 11:18 pm
SJU
-
SEA
11h 25m
1 stop
$504American Airlines
Sun, Aug 16 - Sat, Aug 22
American Airlines Logo
6:17 pm - 9:43 am
SEA
-
SJU
12h 26m
2 stops
American Airlines Logo
3:44 pm - 9:25 am
SJU
-
SEA
20h 41m
1 stop
$505American Airlines
Mon, Nov 2 - Wed, Nov 11
Delta Logo
9:55 pm - 12:25 pm
SEA
-
MBJ
11h 30m
1 stop
Delta Logo
6:00 pm - 10:26 am
MBJ
-
SEA
19h 26m
1 stop
$532Delta
Mon, Nov 2 - Wed, Nov 11
Delta Logo
5:45 pm - 12:25 pm
SEA
-
MBJ
15h 40m
2 stops
Delta Logo
6:00 pm - 10:26 am
MBJ
-
SEA
19h 26m
1 stop
$537Delta
Sat, Sep 19 - Wed, Sep 23
Air Canada Logo
8:00 am - 1:15 pm
SEA
-
PUJ
26h 15m
1 stop
Air Canada Logo
5:05 pm - 2:22 pm
PUJ
-
SEA
24h 17m
2 stops
$545Air Canada
Fri, Sep 18 - Tue, Sep 22
Air Canada Logo
5:40 am - 4:05 pm
SEA
-
PUJ
31h 25m
2 stops
Air Canada Logo
4:20 pm - 10:42 pm
PUJ
-
SEA
33h 22m
2 stops
$546Air Canada
Thu, Jul 23 - Tue, Jul 28
JetBlue Logo
10:19 pm - 4:04 pm
SEA
-
NAS
14h 45m
1 stop
JetBlue Logo
1:30 pm - 9:04 pm
NAS
-
SEA
10h 34m
1 stop
$623JetBlue
Thu, Jul 23 - Thu, Jul 30
JetBlue Logo
10:19 pm - 4:04 pm
SEA
-
NAS
14h 45m
1 stop
JetBlue Logo
1:30 pm - 8:57 pm
NAS
-
SEA
10h 27m
1 stop
$633JetBlue
Booking Insights

KAYAK's insights & trends for Seattle to Caribbean flights

Get data-powered insights and trends into flights from Seattle to Caribbean to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Caribbean?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Caribbean, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Caribbean is May, when tickets cost $167 (return) on average. On the other hand, the most expensive months are January and April, when the average cost of round-trip tickets is $6,771 and $1,166 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Caribbean, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Caribbean, you should book around 4 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$223
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Seattle to San Juan

FAQs - booking Caribbean flights

  • How does KAYAK find such low prices on flights from Seattle to Caribbean?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Caribbean.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Caribbean?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Caribbean is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Caribbean?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Caribbean with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Caribbean?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Caribbean up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Seattle to Caribbean

 
Need help choosing which airline to fly with from Seattle to Caribbean? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4261 reviews
7.5Entertainment
8.1Boarding
8.0Comfort
7.0Food
8.6Crew
Airline reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

I felt scammed. The priced advertised was different than what I paid. I paid the whole some online. I then got a call 20 minutes later saying I need to paid 70 more person. She said the price online is not the guaranteed price.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Easy of boarding, helpfully staff at check in, surprisingly comfortable seating

Check in was chaotic with only one counter for business class and first class. The luggage conveyor belt at JFK airport was broken so the flight departure was delayed which made the flight stressful as I had a tight connection. Although the captain said they could make up the delay, they didn’t do so.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

Lost of requested seat assignments. Lost my husband's meal choice

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

They lost my baggage and I am still struggling to the information and update

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

Selected seats 5 months prior to date. Had email confirmation and seats were not honoured. Family did not sit together

Loved and was pleasantly surprised by the food!! Request Lufthansa to help transiting passengers at Munich (confusion whether to go thru passport control or not).

The flight was comfortable and the staff were helpful and friendly. However, we did not know we were flying PAL until we arrived in Canada, so it was a bit disconcerting. In addition, which port we were leaving from was confusing.

They did not let us board because one member needed a transit visa, which was not evident at the time of ticket purchase.

I was charge a baggage checking fee $68!! I volunteered to check my duffle bag which usually goes under my seat!

I did not like anything because the flight was cancelled yesterday and I did not get to arrive on time in Toronto as I was rebooked with another airline. This caused me to be really stressed out as I am an individual with back injury and to be forced to stay longer in an airport to accommodate a change of airline and the transfers associated with it Due to this I am probably not going to book through your website to eliminate this potentially chaos in the future

shittiest airline in the hemisphere. To improve - start thinking you're flying people, not cattle

Easy boarding, inflight refreshments came on time and comfortable seat

It was good that our flight left early. It was a nice smooth flight and landing.

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Everything you need to know for your flight to Caribbean

Information on your arrival and departure airports