SEA - STT

$446 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
$534
Typical prices: $545-$934
American Airlines
Tue 1/30Sun 2/4
SEA - STT • 1 stop
Cheapest one-way
$278
Typical prices: $258-$378
Southwest
Fri 1/26
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 51% compared to booking last minute.
Insights
Insights
When to travel
August
Cheapest • 24% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Houston George Bush Intcntl (IAH)
Cheapest • Avg $543 (round-trip)
Dallas/Fort Worth (DFW)
Shortest trip • 10h 27m (one-way)
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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

Sat, Jan 30 - Thu, Feb 4
American Airlines Logo
9:44 pm - 2:10 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
12h 26m1 stop Miami
American Airlines Logo
3:50 pm - 9:27 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
21h 37m1 stop Chicago O'Hare Intl
$534American Airlines
Sat, Jan 30 - Thu, Feb 4
American Airlines Logo
9:44 pm - 4:14 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
14h 30m1 stop Miami
American Airlines Logo
1:58 pm - 12:43 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
14h 45m2 stops Charlotte Douglas Chicago O'Hare Intl
$534American Airlines
Sat, Jan 30 - Thu, Feb 4
American Airlines Logo
6:19 pm - 12:24 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
14h 05m2 stops Phoenix Sky Harbor Intl Miami
American Airlines Logo
5:04 pm - 9:27 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
20h 23m2 stops Miami Chicago O'Hare Intl
$534American Airlines
Wed, Jan 13 - Mon, Jan 18
Southwest Logo
12:45 pm - 2:55 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
22h 10m2 stops Phoenix Sky Harbor Intl Orlando
Southwest Logo
2:10 pm - 12:35 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
14h 25m2 stops Orlando Chicago Midway
$554Southwest
Sun, Jan 24 - Sun, Jan 31
Southwest Logo
12:45 pm - 2:55 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
22h 10m2 stops Phoenix Sky Harbor Intl Orlando
Southwest Logo
2:10 pm - 12:35 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
14h 25m2 stops Orlando Chicago Midway
$554Southwest
Thu, Feb 4 - Mon, Feb 8
Southwest Logo
2:45 pm - 1:20 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
18h 35m2 stops Dallas Love Field Baltimore/Washington
Southwest Logo
2:10 pm - 12:35 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
14h 25m2 stops Orlando Chicago Midway
$573Southwest
Thu, Jan 21 - Wed, Feb 3
United Airlines Logo
5:28 pm - 1:56 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
16h 28m2 stops Los Angeles Washington, D.C. Dulles Intl
United Airlines Logo
1:07 pm - 9:02 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
11h 55m1 stop Washington, D.C. Dulles Intl
$574United Airlines
Tue, Feb 2 - Sun, Feb 7
Delta Logo
7:49 pm - 2:00 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
14h 11m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
3:11 pm - 11:25 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
12h 14m1 stop Atlanta Hartsfield-Jackson
$577Delta
Mon, Jan 25 - Mon, Feb 1
Delta Logo
5:59 pm - 2:00 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
16h 01m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
4:03 pm - 11:25 pmSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
11h 22m1 stop Atlanta Hartsfield-Jackson
$577Delta
Sun, Jan 10 - Sun, Jan 17
United Airlines Logo
3:34 pm - 1:56 pmSEA  Seattle/Tacoma Intl-STT Saint Thomas Island Cyril E King
18h 22m2 stops San Francisco Washington, D.C. Dulles Intl
United Airlines Logo
1:07 pm - 12:56 amSTT  Saint Thomas Island Cyril E King-SEA Seattle/Tacoma Intl
15h 49m2 stops Washington, D.C. Dulles Intl San Francisco
$577United Airlines
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 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 typically range from $545 to $934. The lowest price found in the past 5 days was $534, on American Airlines.

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

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Seattle to Saint Thomas Island. It’s 7% cheaper than the average day, while Friday is the most expensive, with prices 18% higher.

What’s 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 July ($838) 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 flights 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 51% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Seattle to Saint Thomas Island flights

Low season

August

Cheapest flight

$278
Beat the crowds with an average 58% drop in travelers.
The most popular month to fly with an average 63% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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

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

    A nonstop flight from Seattle to Saint Thomas Island takes 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.

  • 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 $545 to $934, with an average of $710 over the past 12 months. Anything below $545 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 67% above the $710 route average. Book 4 weeks before departure for the lowest fares.

  • 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 $534 to $5,282. That means the highest observed fare was about 10x 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 higher than usual. Average one-way flight prices are about $646, which is 100% above the typical average for this route.

  • 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 averaging $72 for economy cars. Top options include:

    • Budget
    • Thrifty
    • Dollar
    • Alamo
    • Hertz

  • 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).

  • 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) - 62% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 18% of one-stop connections
    • Charlotte Douglas (CLT) - 7% of one-stop connections
    • Houston George Bush Intcntl (IAH) - 5% of one-stop connections

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

    Yes. Flexible dates can save you up to 22% on flights from Seattle to Saint Thomas Island. Monday is the cheapest departure day at $662 round-trip on average, while Friday is the most expensive at $838, a difference of $176.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 10h 27m, compared with 10h 51m via Washington, D.C. Dulles Intl (IAD) and 11h 01m via Charlotte Douglas (CLT).

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

    Saint Thomas Island is 4 hours ahead of Seattle (Atlantic Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

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

    Some of the most popular sights in Saint Thomas Island are Sapphire Beach, Coki Beach and 99 Steps. These are among the most viewed places in Saint Thomas Island on KAYAK.

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 are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $662, about $176 less than Friday fares (21% 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 51% 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
    • Sunset Gardens Guesthouse
    • Island View 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