SEA - STT

$246 Find Cheap Flights from Seattle to Saint Thomas Island

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 Saint Thomas Island departing on 5/25. 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 Saint Thomas Island

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Saint Thomas Island, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Saint Thomas Island, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$584
Typical prices: $760-$522
American Airlines
Sun 8/23Sat 8/29
SEA - STT • 2 stops
Cheapest one-way
$246
United Airlines
Mon 5/25
SEA - STT • 1 stop
Top airlines
Cheapest • from $584 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Saint Thomas Island. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $572 (round-trip)
Shortest trip • 10h 16m (one-way)
Insights
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 54% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Saint Thomas Island!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Saint Thomas Island (SEA-STT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Saint Thomas Island 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 Saint Thomas Island

Sun, Aug 23 - Sat, Aug 29
American Airlines Logo
12:26 am - 3:52 pm
SEA
-
STT
12h 26m
2 stops
American Airlines Logo
1:30 pm - 11:59 pm
STT
-
SEA
13h 29m
2 stops
$584American Airlines
Wed, Aug 19 - Fri, Aug 28
American Airlines Logo
1:00 pm - 12:52 pm
SEA
-
STT
20h 52m
1 stop
American Airlines Logo
4:42 pm - 12:20 am
STT
-
SEA
10h 38m
1 stop
$589American Airlines
Sun, Nov 8 - Sat, Nov 14
American Airlines Logo
5:54 pm - 11:43 am
SEA
-
STT
13h 49m
2 stops
American Airlines Logo
6:17 pm - 9:45 am
STT
-
SEA
19h 28m
2 stops
$624American Airlines
Wed, Jul 8 - Mon, Jul 20
American Airlines Logo
6:15 pm - 11:03 am
SEA
-
STT
13h 48m
2 stops
American Airlines Logo
4:50 pm - 12:07 am
STT
-
SEA
10h 17m
1 stop
$629American Airlines
Mon, Jun 15 - Tue, Jun 23
JetBlue Logo
11:44 pm - 2:03 pm
SEA
-
STT
11h 19m
1 stop
JetBlue Logo
2:58 pm - 10:35 am
STT
-
SEA
22h 37m
2 stops
$645JetBlue
Fri, Jul 3 - Sat, Jul 11
American Airlines Logo
8:45 pm - 11:57 am
SEA
-
STT
12h 12m
1 stop
American Airlines Logo
1:49 pm - 12:07 am
STT
-
SEA
13h 18m
1 stop
$677American Airlines
Sat, Aug 22 - Fri, Aug 28
American Airlines Logo
11:16 pm - 3:52 pm
SEA
-
STT
13h 36m
2 stops
American Airlines Logo
4:42 pm - 1:03 pm
STT
-
SEA
23h 21m
2 stops
$704American Airlines
Wed, Aug 26 - Mon, Aug 31
American Airlines Logo
8:35 pm - 12:52 pm
SEA
-
STT
13h 17m
1 stop
American Airlines Logo
1:49 pm - 10:58 am
STT
-
SEA
24h 09m
2 stops
$709American Airlines
Tue, Jun 9 - Tue, Jun 16
American Airlines Logo
8:45 pm - 12:44 pm
SEA
-
STT
12h 59m
1 stop
American Airlines Logo
1:35 pm - 12:08 am
STT
-
SEA
13h 33m
1 stop
$717American Airlines
Tue, Aug 25 - Fri, Aug 28
JetBlue Logo
11:44 pm - 3:32 pm
SEA
-
STT
12h 48m
2 stops
JetBlue Logo
2:58 pm - 10:49 pm
STT
-
SEA
34h 51m
2 stops
$725JetBlue
Booking Insights

KAYAK's insights & trends for Seattle to Saint Thomas Island flights

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

How much is a round-trip flight from Seattle to Saint Thomas Island?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Saint Thomas Island departing in August.

What is the cheapest month to fly from Seattle to Saint Thomas Island?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Saint Thomas Island, 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 Saint Thomas Island is January, where tickets cost $538 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $822 and $787 respectively.

How far in advance should I book a flight from Seattle to Saint Thomas Island?

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 Saint Thomas Island, 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 Saint Thomas Island, you should book around 4 weeks before departure, which saves you about 54% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$246
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly with an average 10% increase in price.
Flight from Seattle to Saint Thomas Island

When to book flights from Seattle to Saint Thomas Island

Are your dates flexible? Find out the best times to travel from Seattle to Saint Thomas Island based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Saint Thomas Island

  • What is the cheapest flight from Seattle to Saint Thomas Island?

    In the last 3 days, the lowest price for a flight from Seattle to Saint Thomas Island was $246 for a one-way ticket and $584 for a round-trip.

  • Do I need a passport to fly between Seattle and Saint Thomas Island?

    Yes

  • Which airports will I be using when flying from Seattle to Saint Thomas Island?

    On your way to Saint Thomas Island, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing at Saint Thomas Island Cyril E King.

  • Which aircraft models fly most regularly from Seattle to Saint Thomas Island?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Saint Thomas Island?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Seattle and Saint Thomas Island, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Saint Thomas Island, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Saint Thomas Island are Delta and United Airlines. With an average price for the route of $700 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $600 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle to Saint Thomas Island?

    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 Saint Thomas Island.

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

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

    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 to Saint Thomas Island with an airline and back to Seattle with another airline. Booking your flights between Seattle and STT can sometimes prove cheaper using this method.

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

    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 to Saint Thomas Island from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Seattle to Saint Thomas Island

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Saint Thomas Island. 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 Saint Thomas Island? 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 8450 reviews
7.2Food
8.1Boarding
7.8Comfort
7.8Entertainment
8.5Crew
Airline reviews

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

6.0 Goodrghinftl, May 2026
FWA - ATL
Read more Delta reviews

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Friendliest Flight Attendant I’ve seen since I flew on Southwest Airlines. The whole trip was outstanding…and arrived Early!

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

We had several flights and they were all on-time and flawless

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Terrible steward... Plane was quite empty... I asked to move "back" in the plane and the steward said no... Unnecessary power trip of mediocre people.

Flight was delayed an no one cares, or try to help passengers to get the conexión.

Our flight was cancelled while we are on our way to the airport. So, no notice. We were rescheduled to another airline with a 2 hour later takeoff and so arrived at our destination on time. We pre-paid American Airlines $190 to upgrade our seats. No refund. So no use for AA or Kayak.

The small flights with Valet Luggage has a poor service

Everything you need to know for your flight from Seattle to Saint Thomas Island

Information on your arrival and departure airports