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Cheap flights from Seattle to Saint Thomas Island from $252

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 7/30. 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.
American Airlines Logo
8:45 pm - 4:00 pm
SEA
-
STT
16h 15m
1 stop
American Airlines Logo
4:50 pm - 12:07 am
STT
-
SEA
10h 17m
1 stop
$584American Airlines
Mon, Jul 13 - Mon, Jul 20
American Airlines Logo
11:56 pm - 4:00 pm
SEA
-
STT
13h 04m
2 stops
American Airlines Logo
4:50 pm - 12:07 am
STT
-
SEA
10h 17m
1 stop
$624American Airlines
Mon, Jul 13 - Mon, Jul 20
JetBlue Logo
11:44 pm - 2:03 pm
SEA
-
STT
11h 19m
1 stop
JetBlue Logo
2:58 pm - 10:33 am
STT
-
SEA
22h 35m
2 stops
$657JetBlue
Mon, Jul 13 - Tue, Jul 21
JetBlue Logo
11:44 pm - 2:03 pm
SEA
-
STT
11h 19m
1 stop
JetBlue Logo
2:58 pm - 10:33 am
STT
-
SEA
22h 35m
2 stops
$666JetBlue
Mon, Aug 3 - Tue, Aug 11
American Airlines Logo
8:45 pm - 11:57 am
SEA
-
STT
12h 12m
1 stop
American Airlines Logo
1:49 pm - 12:07 am
STT
-
SEA
13h 18m
1 stop
$677American Airlines
Fri, Jul 3 - Sat, Jul 11
American Airlines Logo
11:22 pm - 4:00 pm
SEA
-
STT
13h 38m
2 stops
American Airlines Logo
1:49 pm - 12:36 am
STT
-
SEA
13h 47m
2 stops
$704American Airlines
Fri, Jul 31 - Thu, Aug 13
Delta Logo
10:40 pm - 12:11 pm
SEA
-
STT
10h 31m
1 stop
Delta Logo
2:49 pm - 11:57 pm
STT
-
SEA
12h 08m
1 stop
$708Delta
Tue, Aug 4 - Tue, Aug 11
American Airlines Logo
3:47 pm - 12:52 pm
SEA
-
STT
18h 05m
2 stops
American Airlines Logo
1:49 pm - 12:36 am
STT
-
SEA
13h 47m
2 stops
$709American Airlines
Wed, Aug 5 - Thu, Aug 13
American Airlines Logo
6:08 pm - 11:03 am
SEA
-
STT
13h 55m
2 stops
American Airlines Logo
1:35 pm - 12:08 am
STT
-
SEA
13h 33m
1 stop
$717American Airlines
Mon, Jun 8 - Mon, Jun 15
United Airlines Logo
11:49 pm - 3:43 pm
SEA
-
STT
12h 54m
1 stop
United Airlines Logo
1:22 pm - 9:18 pm
STT
-
SEA
10h 56m
1 stop
$726United Airlines
Fri, Jul 10 - Wed, Jul 22

American Airlines flights from Seattle to Saint Thomas Island

Our best American Airlines deals on Seattle to Saint Thomas Island flight tickets
American Airlines
Jul 13
SEA8:45 pmSeattle/Tacoma Intl
16h 15m
1 stop
STT4:00 pmSaint Thomas Island Cyril E King
Jul 20
STT4:50 pmSaint Thomas Island Cyril E King
10h 17m
1 stop
SEA12:07 amSeattle/Tacoma Intl
$584
American Airlines
Aug 19
SEA11:59 pmSeattle/Tacoma Intl
12h 02m
2 stops
STT3:01 pmSaint Thomas Island Cyril E King
Aug 28
STT4:42 pmSaint Thomas Island Cyril E King
10h 38m
1 stop
SEA12:20 amSeattle/Tacoma Intl
$589
American Airlines
Nov 8
SEA5:54 pmSeattle/Tacoma Intl
13h 49m
2 stops
STT11:43 amSaint Thomas Island Cyril E King
Nov 14
STT6:17 pmSaint Thomas Island Cyril E King
19h 28m
2 stops
SEA9:45 amSeattle/Tacoma Intl
$624

JetBlue flights from Seattle to Saint Thomas Island

Our best JetBlue deals on Seattle to Saint Thomas Island flight tickets
JetBlue
Jul 13
SEA11:44 pmSeattle/Tacoma Intl
11h 19m
1 stop
STT2:03 pmSaint Thomas Island Cyril E King
Jul 21
STT2:58 pmSaint Thomas Island Cyril E King
22h 35m
2 stops
SEA10:33 amSeattle/Tacoma Intl
$657
JetBlue
Aug 3
SEA11:44 pmSeattle/Tacoma Intl
11h 19m
1 stop
STT2:03 pmSaint Thomas Island Cyril E King
Aug 11
STT2:58 pmSaint Thomas Island Cyril E King
22h 35m
2 stops
SEA10:33 amSeattle/Tacoma Intl
$666
JetBlue
Jun 5
SEA11:52 pmSeattle/Tacoma Intl
35h 50m
2 stops
STT2:42 pmSaint Thomas Island Cyril E King
Jun 12
STT3:30 pmSaint Thomas Island Cyril E King
23h 57m
2 stops
SEA12:27 pmSeattle/Tacoma Intl
$785

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 May 16, 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

Mon 7/13

8:45 pm-4:00 pm

1 stop16h 15m

Saint Thomas Island Cyril E King

Mon 7/20

4:50 pm-12:07 am

1 stop10h 17m

$584

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 7/13

11:56 pm-4:00 pm

2 stops13h 04m

Saint Thomas Island Cyril E King

Mon 7/20

4:50 pm-12:07 am

1 stop10h 17m

$624

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 7/13

11:44 pm-2:03 pm

1 stop11h 19m

Saint Thomas Island Cyril E King

Tue 7/21

2:58 pm-10:33 am

2 stops22h 35m

$657

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 8/3

11:44 pm-2:03 pm

1 stop11h 19m

Saint Thomas Island Cyril E King

Tue 8/11

2:58 pm-10:33 am

2 stops22h 35m

$666

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Fri 7/3

8:45 pm-11:57 am

1 stop12h 12m

Saint Thomas Island Cyril E King

Sat 7/11

1:49 pm-12:07 am

1 stop13h 18m

$677

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Fri 7/31

11:22 pm-4:00 pm

2 stops13h 38m

Saint Thomas Island Cyril E King

Thu 8/13

1:49 pm-12:36 am

2 stops13h 47m

$704
Quickest round-trip

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 8/4

10:40 pm-12:11 pm

1 stop10h 31m

Saint Thomas Island Cyril E King

Tue 8/11

2:49 pm-11:57 pm

1 stop12h 08m

$708

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 8/5

3:47 pm-12:52 pm

2 stops18h 05m

Saint Thomas Island Cyril E King

Thu 8/13

1:49 pm-12:36 am

2 stops13h 47m

$709

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 6/8

6:08 pm-11:03 am

2 stops13h 55m

Saint Thomas Island Cyril E King

Mon 6/15

1:35 pm-12:08 am

1 stop13h 33m

$717

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Fri 7/10

11:49 pm-3:43 pm

1 stop12h 54m

Saint Thomas Island Cyril E King

Wed 7/22

1:22 pm-9:18 pm

1 stop10h 56m

$726

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 October is another great option to travel to Saint Thomas Island, with average flight prices from Seattle averaging around $543.

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 $690 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 $499 on momondo.

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

You could potentially save up to 15% 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

11h 19m

Direct flights

None
The fastest flight from Seattle to Saint Thomas Island takes 11h 19m
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. 11h 19m 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
7.9
8,455 reviews
Search Delta flights
United AirlinesPriceFrom $438Free CancellationRating
7.4
9,727 reviews
Search United Airlines flights
American AirlinesPriceFrom $473Free CancellationRating
7.1
11,662 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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