SEA - STT

$235 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 12/15. 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

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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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, Jan 11 - Thu, Jan 22
Delta Logo
9:55 pm - 1:45 pmSEA-STT
11h 50m1 stop
Delta Logo
3:00 pm - 10:25 pmSTT-SEA
11h 25m1 stop
$473Delta
Find Deal
Sun, Oct 19 - Sun, Nov 2
American Airlines Logo
5:48 pm - 10:50 amSEA-STT
14h 02m2 stops
American Airlines Logo
6:17 pm - 9:45 amSTT-SEA
19h 28m2 stops
$474American Airlines
Find Deal
Wed, Oct 8 - Tue, Oct 14
 Logo
8:34 am - 9:56 amSEA-STT
22h 22m1 stop
 Logo
11:01 am - 10:22 pmSTT-SEA
14h 21m1 stop
Wed, Oct 8 - Tue, Oct 14
 Logo
8:34 am - 12:59 pmSEA-STT
25h 25m2 stops
 Logo
11:01 am - 10:22 pmSTT-SEA
14h 21m1 stop
Sat, Jan 10 - Thu, Jan 22
American Airlines Logo
12:27 am - 5:25 pmSEA-STT
12h 58m2 stops
American Airlines Logo
2:35 pm - 11:27 pmSTT-SEA
12h 52m1 stop
$511American Airlines
Find Deal
Sat, Oct 18 - Sun, Nov 2
American Airlines Logo
12:34 am - 4:05 pmSEA-STT
12h 31m2 stops
American Airlines Logo
4:17 pm - 11:26 pmSTT-SEA
11h 09m1 stop
$512American Airlines
Find Deal
Tue, Jan 6 - Wed, Jan 14
American Airlines Logo
12:27 am - 5:25 pmSEA-STT
12h 58m2 stops
American Airlines Logo
4:35 pm - 11:27 pmSTT-SEA
10h 52m1 stop
$541American Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 18
American Airlines Logo
11:51 pm - 3:25 pmSEA-STT
11h 34m2 stops
American Airlines Logo
12:58 pm - 12:54 amSTT-SEA
15h 56m2 stops
$549American Airlines
Find Deal
Sat, Oct 18 - Fri, Oct 31
United Airlines Logo
7:37 pm - 1:08 pmSEA-STT
14h 31m2 stops
United Airlines Logo
12:02 pm - 10:45 pmSTT-SEA
13h 43m2 stops
$563United Airlines
Find Deal
Mon, Feb 9 - Sun, Feb 15
United Airlines Logo
5:10 pm - 1:56 pmSEA-STT
16h 46m2 stops
United Airlines Logo
1:05 pm - 8:10 pmSTT-SEA
11h 05m1 stop
$623United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $473 (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 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 21% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$473
Overall average: $546
Delta
Sun 1/11Thu 1/22
SEA - STT • 1 stop
Cheapest one-way
$235
Typical prices: $388-567
United Airlines
Mon 12/15
SEA - STT • 2 stops
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!
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’s the cheapest day of the week to fly from Seattle to Saint Thomas Island?

The average price of all round-trip flights from Seattle to Saint Thomas Island clicked on KAYAK for each day over the last 12 months.

For Seattle to Saint Thomas Island, Tuesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Saint Thomas Island back to Seattle, the best deals are generally found on Friday, with Wednesday being the most expensive.

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 $546 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $933 and $877 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 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$235
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 11% 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 $235 for a one-way ticket and $473 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, oneworld, and SkyTeam 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 $660 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 $694 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 4 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 7960 reviews
8.2Boarding
8.5Crew
7.9Entertainment
7.9Comfort
7.3Food
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

Everything was fine. I'm average height and I pack light. I'm ready for my Spirit flight.

Changing the flight time to 6:15 am on the return flight is extremely inconvenient. The flight was okay. It was on time. The crew was friendly. The seats were uncomfortable. All the upsells are annoying, and I would prefer paying a single higher fee and not have to purchase so much extra.

Spirit Airlines was ok but TRAVELHELPDESK, the 3rd party travel agent IS A JOKE! VERY RUDE CUSTOMER AGENTS ont he phone. NO HELP AT ALL. But the airlines was ok.

No Tumberlence smooth flight. Try to change the menu on Snacks.

Cancelled my flight last minute and did not help me rebook. It was a horrible experience.

No frills - because you get what you pay for. The crew was amazing!! I had plenty of room to spread out because the flight was half full. Which made it easy to sleep.

The terminal crew is so rude cabin crew is extremely rude flight is very good

Spirit is low fare air line. Food also cost you. No free food.

The flight was delayed twice with minimal explanation. The terminal and airplane were filthy. The food voucher didn’t even cover a tiny pizza from a kiosk in the terminal. All in all, a pretty miserable experience for a flight to attend a funeral

I will use spirit more New clean aircraft Excellent crew ! Quick boarding process !

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

Information on your arrival and departure airports

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