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Cheap flights from Seattle to Saint Thomas Island from $274

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Saint Thomas Island departing on 7/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:59 pm - 4:58 pm
SEA
-
STT
12h 59m
2 stops
American Airlines Logo
4:16 pm - 11:16 pm
STT
-
SEA
11h 00m
1 stop
$474American Airlines
Tue, Dec 1 - Tue, Dec 15
American Airlines Logo
10:08 pm - 12:07 pm
SEA
-
STT
9h 59m
1 stop
American Airlines Logo
6:17 pm - 10:39 am
STT
-
SEA
20h 22m
2 stops
$479American Airlines
Wed, Nov 25 - Wed, Dec 2
American Airlines Logo
11:59 pm - 4:58 pm
SEA
-
STT
12h 59m
2 stops
American Airlines Logo
2:49 pm - 12:55 am
STT
-
SEA
14h 06m
2 stops
$494American Airlines
Tue, Dec 1 - Tue, Dec 15
American Airlines Logo
5:34 pm - 12:51 pm
SEA
-
STT
16h 17m
2 stops
American Airlines Logo
1:41 pm - 10:09 am
STT
-
SEA
23h 28m
2 stops
$509American Airlines
Fri, Sep 25 - Mon, Sep 28
American Airlines Logo
5:39 pm - 12:39 pm
SEA
-
STT
16h 00m
2 stops
American Airlines Logo
3:46 pm - 11:59 pm
STT
-
SEA
11h 13m
1 stop
$516American Airlines
Tue, Oct 13 - Tue, Oct 20
Delta Logo
11:59 pm - 1:39 pm
SEA
-
STT
10h 40m
1 stop
Delta Logo
2:49 pm - 11:52 pm
STT
-
SEA
12h 03m
1 stop
$539Delta
Sun, Oct 11 - Mon, Oct 19
American Airlines Logo
2:12 pm - 12:51 pm
SEA
-
STT
19h 39m
2 stops
American Airlines Logo
1:41 pm - 9:25 am
STT
-
SEA
22h 44m
2 stops
$541American Airlines
Wed, Sep 23 - Sun, Sep 27
American Airlines Logo
10:08 pm - 4:58 pm
SEA
-
STT
14h 50m
1 stop
American Airlines Logo
2:49 pm - 11:16 pm
STT
-
SEA
12h 27m
1 stop
$544American Airlines
Tue, Dec 1 - Tue, Dec 15
American Airlines Logo
5:39 pm - 12:39 pm
SEA
-
STT
16h 00m
2 stops
American Airlines Logo
12:57 pm - 12:58 am
STT
-
SEA
16h 01m
2 stops
$558American Airlines
Tue, Oct 27 - Sun, Nov 1
United Airlines Logo
6:05 pm - 11:07 am
SEA
-
STT
14h 02m
2 stops
United Airlines Logo
12:07 pm - 10:53 pm
STT
-
SEA
13h 46m
2 stops
$574United Airlines
Fri, Oct 23 - Fri, Oct 30

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American Airlines flights from Seattle to Saint Thomas Island

Our best American Airlines deals on Seattle to Saint Thomas Island flight tickets
American Airlines
Dec 1
SEA11:59 pmSeattle/Tacoma Intl
12h 59m
2 stops
STT4:58 pmSaint Thomas Island Cyril E King
Dec 15
STT4:16 pmSaint Thomas Island Cyril E King
11h 00m
1 stop
SEA11:16 pmSeattle/Tacoma Intl
$474
American Airlines
Nov 25
SEA10:08 pmSeattle/Tacoma Intl
9h 59m
1 stop
STT12:07 pmSaint Thomas Island Cyril E King
Dec 2
STT6:17 pmSaint Thomas Island Cyril E King
20h 22m
2 stops
SEA10:39 amSeattle/Tacoma Intl
$479
American Airlines
Dec 1
SEA11:59 pmSeattle/Tacoma Intl
12h 59m
2 stops
STT4:58 pmSaint Thomas Island Cyril E King
Dec 15
STT2:49 pmSaint Thomas Island Cyril E King
14h 06m
2 stops
SEA12:55 amSeattle/Tacoma Intl
$494

United Airlines flights from Seattle to Saint Thomas Island

Our best United Airlines deals on Seattle to Saint Thomas Island flight tickets
United Airlines
Oct 23
SEA6:05 pmSeattle/Tacoma Intl
14h 02m
2 stops
STT11:07 amSaint Thomas Island Cyril E King
Oct 30
STT12:07 pmSaint Thomas Island Cyril E King
11h 31m
1 stop
SEA8:38 pmSeattle/Tacoma Intl
$574
United Airlines
Oct 27
SEA4:39 pmSeattle/Tacoma Intl
15h 26m
2 stops
STT11:05 amSaint Thomas Island Cyril E King
Nov 1
STT3:35 pmSaint Thomas Island Cyril E King
11h 20m
1 stop
SEA10:55 pmSeattle/Tacoma Intl
$578
United Airlines
Oct 23
SEA6:05 pmSeattle/Tacoma Intl
14h 02m
2 stops
STT11:07 amSaint Thomas Island Cyril E King
Oct 31
STT2:00 pmSaint Thomas Island Cyril E King
25h 14m
2 stops
SEA12:14 pmSeattle/Tacoma Intl
$662

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Saint Thomas Island that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 2, 2026.
Use the filters below to find and compare flights from Seattle to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 12/1

11:59 pm-4:58 pm

2 stops12h 59m

Saint Thomas Island Cyril E King

Tue 12/15

4:16 pm-11:16 pm

1 stop11h 00m

$474

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 11/25

10:08 pm-12:07 pm

1 stop9h 59m

Saint Thomas Island Cyril E King

Wed 12/2

6:17 pm-10:39 am

2 stops20h 22m

$479

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 12/1

11:59 pm-4:58 pm

2 stops12h 59m

Saint Thomas Island Cyril E King

Tue 12/15

2:49 pm-12:55 am

2 stops14h 06m

$494

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Fri 9/25

5:34 pm-12:51 pm

2 stops16h 17m

Saint Thomas Island Cyril E King

Mon 9/28

1:41 pm-10:09 am

2 stops23h 28m

$509

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 10/13

5:39 pm-12:39 pm

2 stops16h 00m

Saint Thomas Island Cyril E King

Tue 10/20

3:46 pm-11:59 pm

1 stop11h 13m

$516
Quickest round-trip

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Sun 10/11

11:59 pm-1:39 pm

1 stop10h 40m

Saint Thomas Island Cyril E King

Mon 10/19

2:49 pm-11:52 pm

1 stop12h 03m

$539

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 9/23

2:12 pm-12:51 pm

2 stops19h 39m

Saint Thomas Island Cyril E King

Sun 9/27

1:41 pm-9:25 am

2 stops22h 44m

$541

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 12/1

10:08 pm-4:58 pm

1 stop14h 50m

Saint Thomas Island Cyril E King

Tue 12/15

2:49 pm-11:16 pm

1 stop12h 27m

$544

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 10/27

5:39 pm-12:39 pm

2 stops16h 00m

Saint Thomas Island Cyril E King

Sun 11/1

12:57 pm-12:58 am

2 stops16h 01m

$558

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Fri 10/23

6:05 pm-11:07 am

2 stops14h 02m

Saint Thomas Island Cyril E King

Fri 10/30

12:07 pm-10:53 pm

2 stops13h 46m

$574

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Seattle to Saint Thomas Island

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Saint Thomas Island?

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

The month of January is another great option to travel to Saint Thomas Island, with average flight prices from Seattle averaging around $563.

How far in advance should I book a flight from Seattle to Saint Thomas Island?

You are more likely to see cheaper flights to Saint Thomas Island from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $731 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Thomas Island from Seattle for as low as $503 on momondo.

Can stopping save me money on Seattle to Saint Thomas Island flights?

You could potentially save up to 7% on your flight if you consider stops on a Seattle to Saint Thomas Island flight.

When to book flights from Seattle to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Saint Thomas Island (SEA to STT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Saint Thomas Island

Fastest flight time

10h 31m

Direct flights

None
The fastest flight from Seattle to Saint Thomas Island takes 10h 31m
There are no direct flights from Seattle to Saint Thomas Island. There are no popular flight routes from Seattle to Saint Thomas Island.
Search flight deals

Frequently asked questions about flying from Seattle to Saint Thomas Island

  • How far is Seattle/Tacoma Intl to Saint Thomas Island Cyril E King by plane?

    There are 3780.5 mi between Seattle/Tacoma Intl and Saint Thomas Island Cyril E King. 10h 31m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Saint Thomas Island Cyril E King Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Saint Thomas Island Cyril E King Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents you'll need for your trip to Saint Thomas Island Cyril E King Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Saint Thomas Island?

Best airlines flying from Seattle to Saint Thomas Island

Compare and see reviews for airlines that fly from Seattle to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $315Free CancellationRating
7.8
8,452 reviews
Search Delta flights
United AirlinesPriceFrom $438Free CancellationRating
7.4
9,926 reviews
Search United Airlines flights
American AirlinesPriceFrom $473Free CancellationRating
7.1
11,770 reviews
Search American Airlines flights

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Saint Thomas Island?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint Thomas Island from Seattle.

Can I find flights from Seattle to Saint Thomas Island with flexible booking policies on momondo?

All flight searches from Seattle to Saint Thomas Island on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Saint Thomas Island?

Once you have performed a search for Seattle to Saint Thomas Island flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seattle to Saint Thomas Island right now. Can momondo alert me if prices change?

Price alerts on flights to Saint Thomas Island from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Saint Thomas Island trip

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