SEA - STT

$258 Find Cheap Flights from Seattle to Saint Thomas Island - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$494
Typical prices: $548-$931
American Airlines
Sun 2/18Sun 2/25
SEA - STT • 1 stop
Cheapest one-way
$258
Typical prices: $280-$380
Delta
Tue 12/4
SEA - STT • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Seattle and Saint Thomas Island. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 53% compared to booking last minute.
Insights
Insights
When to travel
August
Cheapest • 23% price drop
March
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Houston George Bush Intcntl (IAH)
Cheapest • Avg $547 (round-trip)
Washington, D.C. Dulles Intl (IAD)
Shortest trip • 10h 51m (one-way)
Insights
Insights
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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)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Saint Thomas Island

Thu, Feb 18 - Sun, Feb 28
American Airlines Logo
11:59 pm - 2:57 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
10h 58m1 stop Chicago O'Hare Intl
American Airlines Logo
6:36 pm - 11:20 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
20h 44m2 stops Miami Dallas/Fort Worth
$494American Airlines
Sat, Jan 23 - Mon, Feb 1
American Airlines Logo
2:37 pm - 3:14 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
20h 37m1 stop Chicago O'Hare Intl
American Airlines Logo
1:07 pm - 12:44 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
15h 37m2 stops Miami Chicago O'Hare Intl
$494American Airlines
Sun, Jan 31 - Sun, Feb 7
American Airlines Logo
8:59 pm - 12:13 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
11h 14m1 stop Miami
American Airlines Logo
4:01 pm - 12:44 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
12h 43m1 stop Chicago O'Hare Intl
$494American Airlines
Sun, Nov 15 - Mon, Nov 23
United Airlines Logo
12:28 pm - 1:56 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
21h 28m3 stops Los Angeles Los Angeles Denver Intl Washington, D.C. Dulles Intl
United Airlines Logo
1:07 pm - 8:56 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
11h 49m1 stop Washington, D.C. Dulles Intl
$604United Airlines
Sun, Nov 15 - Mon, Nov 23
United Airlines Logo
7:04 pm - 1:56 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
14h 52m2 stops Denver Intl Washington, D.C. Dulles Intl
United Airlines Logo
1:07 pm - 8:56 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
11h 49m1 stop Washington, D.C. Dulles Intl
$604United Airlines
Sat, Dec 5 - Sun, Dec 13
United Airlines Logo
11:59 pm - 4:20 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
12h 21m1 stop Houston George Bush Intcntl
United Airlines Logo
3:35 pm - 10:51 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
11h 16m1 stop Houston George Bush Intcntl
$630United Airlines
Sun, Nov 15 - Mon, Nov 23
Delta Logo
11:45 pm - 2:43 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
10h 58m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:53 pm - 11:57 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
12h 04m1 stop Atlanta Hartsfield-Jackson
$692Delta
Tue, Jan 5 - Tue, Jan 19
Multiple Airlines Logo
3:51 pm - 4:20 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
20h 29m3 stops Denver Intl Los Angeles Los Angeles Chicago O'Hare Intl
Multiple Airlines Logo
1:46 pm - 9:40 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
35h 54m2 stops San Juan Luis Munoz Marin Intl Newark
$781Multiple Airlines
Wed, Jan 6 - Sat, Jan 16
Multiple Airlines Logo
3:51 pm - 4:20 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
20h 29m3 stops Denver Intl Los Angeles Los Angeles Chicago O'Hare Intl
Multiple Airlines Logo
11:21 am - 10:39 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
15h 18m2 stops San Juan Luis Munoz Marin Intl Chicago O'Hare Intl
$862Multiple Airlines
Sun, Dec 20 - Tue, Dec 29
Delta Logo
10:55 pm - 1:55 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
11h 00m1 stop New York John F Kennedy Intl
Delta Logo
1:50 pm - 11:55 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
14h 05m1 stop Atlanta Hartsfield-Jackson
$1,395Delta
Booking Insights

Price, demand and travel trends for Seattle to Saint Thomas Island flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Saint Thomas Island with more confidence.

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

Round-trip flights from Seattle to Saint Thomas Island start at $494. Prices are below average for this route right now, with typical round-trip fares ranging from $548 to $931. The lowest price found in the past 5 days was $494 on American Airlines.

What's the cheapest day of the week to fly from Seattle to Saint Thomas Island?

Tuesday is the cheapest day of the week to fly from Seattle to Saint Thomas Island, it is 17% cheaper than the average day. Sunday is the most expensive day with flight prices 15% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • August is the cheapest month to fly from Seattle to Saint Thomas Island at $541 round-trip.
  • December ($954) and November ($935) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 76% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to Saint Thomas Island the cheapest?

Flights from Seattle to Saint Thomas Island are cheapest 4 weeks before departure. Booking in this window typically costs about 53% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Seattle to Saint Thomas Island flights

Low season

August

Cheapest flight

$258
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 9% lower on average.
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

Your Seattle to Saint Thomas Island flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Seattle to Saint Thomas Island?

    Flights from Seattle to Saint Thomas Island usually depart from Seattle/Tacoma Intl (SEA) and arrive at Saint Thomas Island Cyril E King (STT).

  • What cabin classes can I book on flights from Seattle to Saint Thomas Island?

    Two cabin classes are available on flights from Seattle to Saint Thomas Island:

    • Economy Class
    • First Class

  • Which airports do connecting flights from Seattle to Saint Thomas Island pass through?

    One-stop flights from Seattle to Saint Thomas Island most commonly connect through:

    • Miami (MIA) - 61% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 14% of one-stop connections
    • Charlotte Douglas (CLT) - 7% of one-stop connections
    • Houston George Bush Intcntl (IAH) - 6% of one-stop connections

    Miami (MIA) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Saint Thomas Island?

    Yes. Being flexible with your travel dates can save you up to 28% on the Seattle to Saint Thomas Island route. Tuesday is the cheapest departure day at $586 round-trip on average, while Sunday is the most expensive at $812, a difference of $226. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Saint Thomas Island?

    Some of the most popular sights in Saint Thomas Island are Sapphire Beach, Magens Bay and Coki Beach. These are among the most viewed places in Saint Thomas Island on KAYAK.

  • How expensive are last-minute Seattle to Saint Thomas Island flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 54% above the route average of $705. Book 4 weeks before departure for the lowest fares.

  • How long is a flight from Seattle to Saint Thomas Island?

    A nonstop flight from Seattle to Saint Thomas Island takes 0h 00m, covering 3,775 miles.

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

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Seattle to Saint Thomas Island changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $494 to $3,608. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Seattle to Saint Thomas Island looking right now?

    One-way fares from Seattle to Saint Thomas Island are currently lower than usual. Average one-way flight prices are about $282, which is 6% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Seattle to Saint Thomas Island?

    Flying via Washington, D.C. Dulles Intl (IAD) gives the shortest average 1-stop total travel time at 10h 51m, compared with 11h 01m via Charlotte Douglas (CLT) and 11h 14m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Seattle and Saint Thomas Island?

    Saint Thomas Island is 3 hours ahead of Seattle (Atlantic Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Saint Thomas Island Cyril E King Airport (STT)?

    Saint Thomas Island Cyril E King Airport (STT) hosts 5 major car rental companies, with daily rates starting from around $19 for economy cars. Top options include:
    · Budget
    · Thrifty
    · Dollar
    · Alamo
    · Hertz

  • How much should I expect to pay for a Seattle to Saint Thomas Island flight?

    Round-trip flights from Seattle to Saint Thomas Island range from $548 to $931, with an average of $705 over the past 12 months. Anything below $548 counts as a good deal.

Your guide to booking Seattle to Saint Thomas Island flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average $586 - about $226 less than Sunday (28% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 4 weeks before you fly. On this route, that window historically saves about 53% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Saint Thomas Island trip for August. Fares historically average $541 round-trip in that month - typically $413 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Saint Thomas Island Cyril E King Airport.
    - Starz Hotel
    - Island View Guesthouse
    - Sunset Gardens Guesthouse

More options for your flight from Seattle to Saint Thomas Island

Complete your trip to Saint Thomas Island with a hotel stay or car rental

Car rentals in Saint Thomas Island
Hotels in Saint Thomas Island
Vacations in Saint Thomas Island