SEA - STT

$211 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 3/11. 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
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$483
Overall average: $634
Southwest
Wed 2/25Thu 3/5
SEA - STT • 2 stops
Cheapest one-way
$211
Typical prices: $495-$530
Multiple Airlines
Wed 3/11
SEA - STT • 2 stops
Top airlines
Southwest
Cheapest • from $483 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 18% price drop
April
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

Wed, Feb 25 - Thu, Mar 5
Southwest Logo
2:05 pm - 2:55 pm
SEA
-
STT
20h 50m
2 stops
Southwest Logo
2:50 pm - 12:30 am
STT
-
SEA
13h 40m
2 stops
$483Southwest
Sat, Mar 7 - Mon, Mar 16
American Airlines Logo
11:57 pm - 4:29 pm
SEA
-
STT
12h 32m
2 stops
American Airlines Logo
12:02 pm - 11:40 pm
STT
-
SEA
14h 38m
1 stop
$494American Airlines
Wed, Feb 25 - Fri, Feb 27
American Airlines Logo
10:08 pm - 12:06 pm
SEA
-
STT
9h 58m
1 stop
American Airlines Logo
1:02 pm - 11:07 pm
STT
-
SEA
14h 05m
2 stops
$497American Airlines
Sun, Feb 22 - Thu, Feb 26
Southwest Logo
6:25 pm - 2:55 pm
SEA
-
STT
16h 30m
2 stops
Southwest Logo
2:10 pm - 10:20 am
STT
-
SEA
24h 10m
2 stops
$517Southwest
Sun, Apr 12 - Fri, Apr 17
United Airlines Logo
7:05 pm - 12:20 pm
SEA
-
STT
14h 15m
2 stops
United Airlines Logo
2:10 pm - 12:19 am
STT
-
SEA
13h 09m
1 stop
$536United Airlines
Sat, Feb 28 - Sat, Mar 7
United Airlines Logo
11:59 pm - 4:18 pm
SEA
-
STT
12h 19m
1 stop
United Airlines Logo
3:35 pm - 10:59 pm
STT
-
SEA
11h 24m
1 stop
$537United Airlines
Thu, Mar 5 - Mon, Mar 16
American Airlines Logo
12:07 am - 5:29 pm
SEA
-
STT
13h 22m
2 stops
American Airlines Logo
1:53 pm - 12:55 am
STT
-
SEA
14h 02m
2 stops
$541American Airlines
Tue, Mar 17 - Sat, Mar 28
American Airlines Logo
12:07 am - 2:46 pm
SEA
-
STT
11h 39m
2 stops
American Airlines Logo
2:28 pm - 11:09 pm
STT
-
SEA
11h 41m
1 stop
$577American Airlines
Sun, Apr 12 - Fri, Apr 17
Southwest Logo
1:25 pm - 1:35 pm
SEA
-
STT
21h 10m
2 stops
Southwest Logo
2:30 pm - 12:40 am
STT
-
SEA
13h 10m
2 stops
$580Southwest
Wed, Feb 25 - Fri, Feb 27
American Airlines Logo
10:08 pm - 12:06 pm
SEA
-
STT
9h 58m
1 stop
American Airlines Logo
2:53 pm - 11:40 pm
STT
-
SEA
12h 47m
1 stop
$584American Airlines
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.

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 September, where tickets cost $534 (return) on average. On the other hand, the most expensive months are June and March, where the average cost of round-trip tickets is $819 and $815 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 3 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$211
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 21% 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 $211 for a one-way ticket and $483 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Seattle and Saint Thomas Island, with Star Alliance 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 $556 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 $691 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 8144 reviews
8.5Crew
7.8Entertainment
7.2Food
7.9Comfort
8.1Boarding
Airline reviews

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

2.0 MediocreAlparda, Feb 2026
BOS - ICN
Read more Delta reviews

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

The attendant on board was amazing. She should be doing business/first international long haul.

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

did not have enough meal for first class passengers so offer us snack

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

Broke my luggage and I can't get a resolution yet.

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

I am very appreciative of the help provided to me by Dennis and Whitney. I had lost my phone at EWR airport and they were very kind in assisting me. This included advice on how to file a report and also helping me connect with family. The pilot was also great about keeping passengers updated on the flight progress with regular communications over the system.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

Old equipment, needs upgrade and seat comfort. Internet didn't work 75% or the time.

The screens were inoperable for movies and such, but everything else was just fine

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

Delayed an hour due to operational issues. Minimal apologies or care for the significant inconvenience caused. Landed at nearly 1am and they still couldn’t find ground staff to get us off the plane promptly.

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

Information on your arrival and departure airports