SEA - STT

$245 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 2/21. 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
$494
Typical prices: $669-$1,217
American Airlines
Sat 3/7Mon 3/16
SEA - STT • 2 stops
Cheapest one-way
$202
Typical prices: $282-$392
Multiple Airlines
Sat 2/21
SEA - STT • 2 stops
Top airlines
Delta
Cheapest • from $494 (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 • 20% 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

Sat, Mar 7 - Mon, Mar 16
American Airlines Logo
11:57 pm - 4:29 pm
SEA
-
STT
12h 32m
2 stops
American Airlines Logo
11:46 am - 12:24 am
STT
-
SEA
15h 38m
2 stops
$494American Airlines
Fri, Mar 6 - Mon, Mar 16
American Airlines Logo
10:16 pm - 5:29 pm
SEA
-
STT
15h 13m
1 stop
American Airlines Logo
11:46 am - 9:08 pm
STT
-
SEA
12h 22m
1 stop
$535American Airlines
Mon, Mar 23 - Mon, Mar 30
American Airlines Logo
11:59 pm - 4:29 pm
SEA
-
STT
13h 30m
2 stops
American Airlines Logo
1:53 pm - 12:55 am
STT
-
SEA
14h 02m
2 stops
$562American Airlines
Wed, Jun 10 - Tue, Jun 16
United Airlines Logo
10:10 pm - 12:15 pm
SEA
-
STT
11h 05m
1 stop
United Airlines Logo
4:45 pm - 12:45 am
STT
-
SEA
11h 00m
1 stop
$565United Airlines
Wed, Jun 10 - Tue, Jun 16
United Airlines Logo
7:10 pm - 12:15 pm
SEA
-
STT
14h 05m
2 stops
United Airlines Logo
4:45 pm - 12:45 am
STT
-
SEA
11h 00m
1 stop
$568United Airlines
Mon, Feb 23 - Thu, Feb 26
United Airlines Logo
7:29 pm - 1:56 pm
SEA
-
STT
14h 27m
2 stops
United Airlines Logo
1:02 pm - 8:56 pm
STT
-
SEA
11h 54m
1 stop
$584United Airlines
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
12:45 pm - 1:10 pm
SEA
-
STT
20h 25m
1 stop
American Airlines Logo
6:39 pm - 12:01 pm
STT
-
SEA
21h 22m
2 stops
$590American Airlines
Sat, Jan 31 - Mon, Feb 16
American Airlines Logo
7:52 pm - 2:02 pm
SEA
-
STT
14h 10m
2 stops
American Airlines Logo
4:37 pm - 11:40 pm
STT
-
SEA
11h 03m
1 stop
$618American Airlines
Fri, Jun 5 - Fri, Jun 12
United Airlines Logo
11:50 pm - 2:54 pm
SEA
-
STT
12h 04m
1 stop
United Airlines Logo
4:45 pm - 12:45 am
STT
-
SEA
11h 00m
1 stop
$620United Airlines
Sun, Mar 15 - Sun, Mar 22
American Airlines Logo
10:57 pm - 12:16 pm
SEA
-
STT
10h 19m
1 stop
American Airlines Logo
1:53 pm - 11:40 pm
STT
-
SEA
12h 47m
1 stop
$623American 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.

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 March.

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 $522 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $889 and $857 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$202
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 17% 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 $202 for a one-way ticket and $474 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 $589 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 $672 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 8051 reviews
7.8Entertainment
7.9Comfort
8.1Boarding
7.2Food
8.5Crew
Airline reviews

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

4.0 OkayNeal, Jan 2026
SEA - SLC
Read more Delta reviews

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

The seats weren’t reclining even though it wasn’t as exit seat

It was good because we traveled without luggage, carry on only.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

The entertainment screens were not working and there was no air condition the entire flight. Very uncomfortable.

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

left on time, reasonable boarding process arrived early luggage came out quickly

I like flying first class, and United has a nice one

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

The professionals have excellent customer service, the seats don´t have enough space.

We were upgraded to First Class and it was a great flight

Amazing I love American. I’ll never fly anyone else if I can help it.

I love American. I’ll never fly anyone else if I can help it.

Flight delay and multiple gate changes including a change near boarding time to another terminal, which in DFW is a pain. Pre-boarding delay and also a further delay on the ground after boarding. About an hour and a half total delay.

On the plus side, crew was attentive, drinks were cold, and in-flight entertainment selection was better than some other airlines. On the negative aide, Plane was delayed almost an hour, either no announcements from the gate crew. Biscoff cookies are gross, appreciate airlines that give a choice. Also, crew had no personality or enthusiasm at all.

Little warm on the plane and delayed for an hour

Tell the crew (when boarding) to yell at the imbeciles blocking us from walking up to scan. I promise everyone crowds around and half of us (most the time I’m group 4) have to push our way through. Your staff is awesome, the public - not so much-

Bags took over and hour to come out. Delays due to wind caused rebooking.

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

Information on your arrival and departure airports