$218 Find Cheap Flights from Seattle to Caribbean Islands

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 Islands departing on 7/3. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Caribbean Islands

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Caribbean Islands.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Caribbean Islands.
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Flight Deals

Cheap Flights from Seattle to Caribbean Islands

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 Bay1 stop$481
Providenciales
Providenciales2 stops$599
Port of Spain
Port of Spain2 stops$597
Bridgetown
Bridgetown1 stop$610
George Town
George Town2 stops$558
Willemstad
Willemstad2 stops$612
Aguadilla
Aguadilla1 stop$584
Puerto Plata
Puerto Plata2 stops$670
St. John's
St. John's1 stop$764
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 Bay1 stop$481
Providenciales
Providenciales2 stops$599
Port of Spain
Port of Spain2 stops$597
Bridgetown
Bridgetown1 stop$610
George Town
George Town2 stops$558
Willemstad
Willemstad2 stops$612
Aguadilla
Aguadilla1 stop$584
Puerto Plata
Puerto Plata2 stops$670
St. John's
St. John's1 stop$764

Book Cheap Seattle to Caribbean Islands 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 Islands 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 Islands

Mon, Aug 17 - Fri, Aug 21
American Airlines Logo
11:16 pm - 2:38 pm
SEA
-
SJU
12h 22m
2 stops
American Airlines Logo
1:38 pm - 11:59 pm
SJU
-
SEA
13h 21m
2 stops
$466American Airlines
Mon, Aug 10 - Mon, Aug 24
Southwest Logo
6:15 pm - 11:00 am
SEA
-
SJU
13h 45m
2 stops
Southwest Logo
6:30 am - 5:35 pm
SJU
-
SEA
14h 05m
2 stops
$470Southwest
Mon, Aug 10 - Mon, Aug 17
Southwest Logo
7:25 pm - 12:20 pm
SEA
-
SJU
13h 55m
2 stops
Southwest Logo
6:30 am - 5:35 pm
SJU
-
SEA
14h 05m
2 stops
$474Southwest
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
Fri, Oct 23 - Mon, Nov 2
Delta Logo
11:53 pm - 3:01 pm
SEA
-
SJU
12h 08m
1 stop
Delta Logo
1:46 pm - 12:11 am
SJU
-
SEA
14h 25m
2 stops
$486Delta
Mon, Nov 9 - Sat, Nov 14
Delta Logo
9:55 pm - 1:25 pm
SEA
-
SDQ
11h 30m
1 stop
Delta Logo
8:35 pm - 10:35 am
SDQ
-
SEA
18h 00m
1 stop
$532Delta
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
Fri, Sep 18 - Sat, Sep 26
United Airlines Logo
10:58 pm - 2:10 pm
SEA
-
SDQ
12h 12m
1 stop
United Airlines Logo
1:10 pm - 9:55 pm
SDQ
-
SEA
11h 45m
1 stop
$563United Airlines
Thu, Jun 11 - Fri, Jun 19
JetBlue Logo
11:44 pm - 2:35 pm
SEA
-
STT
11h 51m
1 stop
JetBlue Logo
3:18 pm - 10:49 pm
STT
-
SEA
34h 31m
2 stops
$641JetBlue
Booking Insights

KAYAK's insights & trends for Seattle to Caribbean Islands flights

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

Can I save money by flying with a layover from Seattle to Caribbean Islands?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $519, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Caribbean Islands, 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 Islands is May, when tickets cost $167 (return) on average. On the other hand, the most expensive months are February and September, when the average cost of round-trip tickets is $306 and $256 respectively.

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

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 Islands, 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 Islands, 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$218
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Seattle to Saint Thomas Island

FAQs - booking Caribbean Islands flights

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

    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 Islands.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Caribbean Islands 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 Islands?

    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 Islands 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 Islands?

    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 Islands 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 Islands

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Caribbean Islands. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Caribbean Islands? 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.
7.9
DeltaOverall score based on 8419 reviews
7.8Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

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

6.0 GoodAnonymous, May 2026
ATL - ECP
Read more Delta reviews

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.

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.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

We had a delay, but thankfully I made it to my connection. Overall it went smooth

It was fine for what it was. It’s not luxury travel but it was efficient, for the most part. Having my carry-on transferred into luggage however, was unwelcome.

We had better-than-average leg room and I loved the access to shows and movies. During boarding, we could not hear the agent even though we were close to the boarding door, which was kind of scary when we realized that half of the passengers had already boarded. Also, the entertainment was awesome, but I could not hear the movie as well as I would have liked, because my headphones were crappy. It would have been better if I could connect my own ear buds via Bluetooth or if JetBlue provided headphones.

On time, friendly attendants, quick wheelchair assistance and help checking in bags. Also appreciated change in seats, more forward to make it easier for my 97 year old mother to board and exit the plane. Thank you, JetBlue!

Flight did not have onboard charging and TV screen flickering.

I was seated next to an autistic child who was out of control and had a child behind me kicking my seat for most of the trip. I will never fly JetBlue again. Ever. I don't care how cheap it is. It's terrible.

Boarding process was terrible. No assigned seat until the gate, then a long line to get seat assignment.

This was the first flight I've taken since pre-pandemic. I was pleased with how orderly the boarding and disembarking went. The seats were comfortable. I loved that there was no "first class'. The attendants and passengers I met were all very friendly and welcoming.

Boarding was easy. Provided drinks and snacks. Good aircraft and staff

Not very happy because of the long delaying which causes our luggages were not on the connection flight and nearly missed our connection flight.

JetBlue was good. Kayak offered us a deal if we bundled the rental car. This was a complete scam. Kayak said the total was $222... but when we went to pick up the car the agent at Rent a wreck said that we had to pay "fees and taxes" for a grand total of $750. I would recommend not using kayak or rent a wreck. They are both complicit in this scam. JetBlue worked out well.

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.

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

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.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

Everything you need to know for your flight to Caribbean Islands

Information on your arrival and departure airports