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Cheap flights from Seattle to Saint Thomas Island from $245

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 4/4. 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
0 bags

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Find the cheapest flights from Seattle to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:30 pm - 2:31 pm
SEA
-
STT
22h 01m
2 stops
Multiple Airlines Logo
3:36 pm - 12:01 pm
STT
-
SEA
24h 25m
2 stops
$385Multiple Airlines
Mon, Feb 23 - Wed, Mar 4
Delta Logo
7:35 pm - 1:00 pm
SEA
-
STT
14h 25m
2 stops
Delta Logo
12:49 pm - 10:05 pm
STT
-
SEA
12h 16m
1 stop
$494Delta
Tue, Mar 10 - Wed, Mar 25
American Airlines Logo
10:08 pm - 11:06 am
SEA
-
STT
9h 58m
1 stop
American Airlines Logo
1:53 pm - 12:55 am
STT
-
SEA
14h 02m
2 stops
$495American Airlines
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
12:07 am - 5:29 pm
SEA
-
STT
13h 22m
2 stops
American Airlines Logo
1:53 pm - 12:55 am
STT
-
SEA
14h 02m
2 stops
$541American Airlines
Thu, Mar 5 - Mon, Mar 16
Multiple Airlines Logo
12:24 pm - 1:31 pm
SEA
-
STT
22h 07m
2 stops
Multiple Airlines Logo
2:36 pm - 5:09 pm
STT
-
SEA
53h 33m
2 stops
$542Multiple Airlines
Sun, Mar 8 - Sun, Mar 15
United Airlines Logo
5:20 pm - 12:56 pm
SEA
-
STT
16h 36m
2 stops
United Airlines Logo
12:02 pm - 8:56 pm
STT
-
SEA
11h 54m
1 stop
$584United Airlines
Mon, Mar 9 - Wed, Mar 11
Delta Logo
11:05 pm - 3:04 pm
SEA
-
STT
11h 59m
1 stop
Delta Logo
3:10 pm - 11:12 pm
STT
-
SEA
12h 02m
1 stop
$588Delta
Mon, Mar 2 - Wed, Mar 4
Southwest Logo
9:25 pm - 12:55 pm
SEA
-
STT
12h 30m
1 stop
Southwest Logo
2:45 pm - 1:40 am
STT
-
SEA
13h 55m
2 stops
$603Southwest
Fri, Jun 5 - Fri, Jun 12
American Airlines Logo
12:07 am - 2:54 pm
SEA
-
STT
11h 47m
2 stops
American Airlines Logo
3:40 pm - 12:54 pm
STT
-
SEA
24h 14m
2 stops
$604American Airlines
Tue, Mar 24 - Thu, Apr 2
American Airlines Logo
12:13 am - 3:40 pm
SEA
-
STT
12h 27m
2 stops
American Airlines Logo
11:46 am - 12:24 am
STT
-
SEA
15h 38m
2 stops
$605American Airlines
Mon, Mar 9 - Wed, Mar 11

Delta flights from Seattle to Saint Thomas Island

Our best Delta deals on Seattle to Saint Thomas Island flight tickets
Delta
Mar 10
SEA11:30 pmSeattle/Tacoma Intl
9h 08m
1 stop
STT11:38 amSaint Thomas Island Cyril E King
Mar 25
STT1:55 pmSaint Thomas Island Cyril E King
11h 10m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
$494
Delta
Mar 2
SEA11:05 pmSeattle/Tacoma Intl
11h 59m
1 stop
STT3:04 pmSaint Thomas Island Cyril E King
Mar 4
STT3:10 pmSaint Thomas Island Cyril E King
12h 02m
1 stop
SEA11:12 pmSeattle/Tacoma Intl
$588
Delta
Feb 22
SEA4:40 pmSeattle/Tacoma Intl
16h 42m
2 stops
STT1:22 pmSaint Thomas Island Cyril E King
Feb 26
STT1:50 pmSaint Thomas Island Cyril E King
13h 22m
1 stop
SEA11:12 pmSeattle/Tacoma Intl
$618

American Airlines flights from Seattle to Saint Thomas Island

Our best American Airlines deals on Seattle to Saint Thomas Island flight tickets
American Airlines
Mar 9
SEA12:13 amSeattle/Tacoma Intl
10h 50m
1 stop
STT2:03 pmSaint Thomas Island Cyril E King
Mar 11
STT1:53 pmSaint Thomas Island Cyril E King
12h 47m
1 stop
SEA11:40 pmSeattle/Tacoma Intl
$495
American Airlines
Mar 5
SEA12:07 amSeattle/Tacoma Intl
13h 22m
2 stops
STT5:29 pmSaint Thomas Island Cyril E King
Mar 16
STT1:53 pmSaint Thomas Island Cyril E King
14h 02m
2 stops
SEA12:55 amSeattle/Tacoma Intl
$541
American Airlines
Mar 24
SEA12:07 amSeattle/Tacoma Intl
11h 47m
2 stops
STT2:54 pmSaint Thomas Island Cyril E King
Apr 2
STT3:40 pmSaint Thomas Island Cyril E King
24h 14m
2 stops
SEA12:54 pmSeattle/Tacoma Intl
$604

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 February 8, 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

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 2/23

12:30 pm-2:31 pm

2 stops22h 01m

Saint Thomas Island Cyril E King

Wed 3/4

3:36 pm-12:01 pm

2 stops24h 25m

$385

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 3/10

7:35 pm-1:00 pm

2 stops14h 25m

Saint Thomas Island Cyril E King

Wed 3/25

12:49 pm-10:05 pm

1 stop12h 16m

$494

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 3/10

10:08 pm-11:06 am

1 stop9h 58m

Saint Thomas Island Cyril E King

Wed 3/11

1:53 pm-12:55 am

2 stops14h 02m

$495

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Thu 3/5

12:07 am-5:29 pm

2 stops13h 22m

Saint Thomas Island Cyril E King

Mon 3/16

1:53 pm-12:55 am

2 stops14h 02m

$541

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Sun 3/8

12:24 pm-1:31 pm

2 stops22h 07m

Saint Thomas Island Cyril E King

Sun 3/15

2:36 pm-5:09 pm

2 stops53h 33m

$542

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 3/9

5:20 pm-12:56 pm

2 stops16h 36m

Saint Thomas Island Cyril E King

Wed 3/11

12:02 pm-8:56 pm

1 stop11h 54m

$584

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 3/2

11:05 pm-3:04 pm

1 stop11h 59m

Saint Thomas Island Cyril E King

Wed 3/4

3:10 pm-11:12 pm

1 stop12h 02m

$588

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Fri 6/5

9:25 pm-12:55 pm

1 stop12h 30m

Saint Thomas Island Cyril E King

Fri 6/12

2:45 pm-1:40 am

2 stops13h 55m

$603

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 3/24

12:07 am-2:54 pm

2 stops11h 47m

Saint Thomas Island Cyril E King

Thu 4/2

3:40 pm-12:54 pm

2 stops24h 14m

$604

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 3/9

12:13 am-3:40 pm

2 stops12h 27m

Saint Thomas Island Cyril E King

Wed 3/11

11:46 am-12:24 am

2 stops15h 38m

$605

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 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 $537.

How far in advance should I book a flight 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 $649 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 $494 on momondo.

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

You could potentially save up to 4% on your flight if you consider stops on a Seattle to Saint Thomas Island flight.

How have Seattle to Saint Thomas Island flight prices changed over time?

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

9h 35m

Direct flights

None
The fastest flight from Seattle to Saint Thomas Island takes 9h 35m
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

  • 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. 9h 35m 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
United AirlinesPriceFrom $264Free CancellationRating
7.4
9,250 reviews
Search United Airlines flights
DeltaPriceFrom $280Free CancellationRating
7.9
8,169 reviews
Search Delta flights
American AirlinesPriceFrom $443Free CancellationRating
7.2
11,248 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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