Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Saint Thomas Island from $189

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 4/19. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
11:55 pm - 4:15 pm
SEA
-
STT
13h 20m
2 stops
American Airlines Logo
5:05 pm - 10:14 am
STT
-
SEA
20h 09m
2 stops
$420American Airlines
Thu, May 7 - Mon, May 11
American Airlines Logo
6:19 pm - 11:35 am
SEA
-
STT
14h 16m
2 stops
American Airlines Logo
5:05 pm - 10:48 am
STT
-
SEA
20h 43m
2 stops
$425American Airlines
Wed, May 13 - Tue, May 19
United Airlines Logo
11:59 pm - 3:31 pm
SEA
-
STT
12h 32m
1 stop
United Airlines Logo
1:22 pm - 10:52 pm
STT
-
SEA
12h 30m
1 stop
$438United Airlines
Thu, Apr 16 - Thu, Apr 30
American Airlines Logo
6:22 pm - 11:35 am
SEA
-
STT
14h 13m
2 stops
American Airlines Logo
2:05 pm - 11:44 pm
STT
-
SEA
12h 39m
1 stop
$445American Airlines
Mon, Apr 6 - Tue, Apr 21
American Airlines Logo
10:16 pm - 4:15 pm
SEA
-
STT
14h 59m
1 stop
American Airlines Logo
12:25 pm - 11:44 pm
STT
-
SEA
14h 19m
1 stop
$455American Airlines
Thu, May 7 - Mon, May 11
United Airlines Logo
10:55 pm - 1:08 pm
SEA
-
STT
11h 13m
1 stop
United Airlines Logo
2:10 pm - 10:42 pm
STT
-
SEA
11h 32m
1 stop
$500United Airlines
Mon, Apr 6 - Tue, Apr 21
United Airlines Logo
10:55 pm - 1:08 pm
SEA
-
STT
11h 13m
1 stop
United Airlines Logo
2:10 pm - 12:34 am
STT
-
SEA
13h 24m
1 stop
$510United Airlines
Mon, Apr 20 - Thu, Apr 23
United Airlines Logo
11:59 pm - 3:31 pm
SEA
-
STT
12h 32m
1 stop
United Airlines Logo
1:22 pm - 10:59 pm
STT
-
SEA
12h 37m
2 stops
$512United Airlines
Thu, Apr 16 - Thu, Apr 30
Delta Logo
7:35 pm - 11:38 am
SEA
-
STT
13h 03m
2 stops
Delta Logo
1:59 pm - 10:05 pm
STT
-
SEA
11h 06m
1 stop
$517Delta
Mon, Apr 6 - Tue, Apr 21
United Airlines Logo
11:59 pm - 3:31 pm
SEA
-
STT
12h 32m
1 stop
United Airlines Logo
2:10 pm - 10:42 pm
STT
-
SEA
11h 32m
1 stop
$520United Airlines
Mon, Apr 20 - Thu, Apr 23

JetBlue flights from Seattle to Saint Thomas Island

Our best JetBlue deals on Seattle to Saint Thomas Island flight tickets
JetBlue
Jun 8
SEA11:52 pmSeattle/Tacoma Intl
35h 50m
2 stops
STT2:42 pmSaint Thomas Island Cyril E King
Jun 15
STT4:37 pmSaint Thomas Island Cyril E King
20h 56m
2 stops
SEA10:33 amSeattle/Tacoma Intl
$753
JetBlue
Jun 1
SEA11:39 pmSeattle/Tacoma Intl
36h 03m
2 stops
STT2:42 pmSaint Thomas Island Cyril E King
Jun 6
STT1:45 pmSaint Thomas Island Cyril E King
23h 30m
2 stops
SEA10:15 amSeattle/Tacoma Intl
$756
JetBlue
Jun 8
SEA11:52 pmSeattle/Tacoma Intl
35h 50m
2 stops
STT2:42 pmSaint Thomas Island Cyril E King
Jun 15
STT4:37 pmSaint Thomas Island Cyril E King
20h 56m
2 stops
SEA10:33 amSeattle/Tacoma Intl
$790

Delta flights from Seattle to Saint Thomas Island

Our best Delta deals on Seattle to Saint Thomas Island flight tickets
Delta
Apr 6
SEA7:35 pmSeattle/Tacoma Intl
13h 03m
2 stops
STT11:38 amSaint Thomas Island Cyril E King
Apr 21
STT1:59 pmSaint Thomas Island Cyril E King
11h 06m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
$517
Delta
Apr 16
SEA4:36 pmSeattle/Tacoma Intl
17h 37m
2 stops
STT1:13 pmSaint Thomas Island Cyril E King
Apr 30
STT1:22 pmSaint Thomas Island Cyril E King
13h 37m
2 stops
SEA11:59 pmSeattle/Tacoma Intl
$532
Delta
Apr 16
SEA4:36 pmSeattle/Tacoma Intl
17h 37m
2 stops
STT1:13 pmSaint Thomas Island Cyril E King
Apr 30
STT1:22 pmSaint Thomas Island Cyril E King
13h 37m
2 stops
SEA11:59 pmSeattle/Tacoma Intl
$544

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 March 27, 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

Thu 5/7

11:55 pm-4:15 pm

2 stops13h 20m

Saint Thomas Island Cyril E King

Mon 5/11

5:05 pm-10:14 am

2 stops20h 09m

$420

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 5/13

6:19 pm-11:35 am

2 stops14h 16m

Saint Thomas Island Cyril E King

Tue 5/19

5:05 pm-10:48 am

2 stops20h 43m

$425

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Thu 4/16

11:59 pm-3:31 pm

1 stop12h 32m

Saint Thomas Island Cyril E King

Thu 4/30

1:22 pm-10:52 pm

1 stop12h 30m

$438

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 4/6

6:22 pm-11:35 am

2 stops14h 13m

Saint Thomas Island Cyril E King

Tue 4/21

2:05 pm-11:44 pm

1 stop12h 39m

$445

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Thu 5/7

10:16 pm-4:15 pm

1 stop14h 59m

Saint Thomas Island Cyril E King

Mon 5/11

12:25 pm-11:44 pm

1 stop14h 19m

$455
Quickest round-trip

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 4/6

10:55 pm-1:08 pm

1 stop11h 13m

Saint Thomas Island Cyril E King

Tue 4/21

2:10 pm-10:42 pm

1 stop11h 32m

$500

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 4/20

10:55 pm-1:08 pm

1 stop11h 13m

Saint Thomas Island Cyril E King

Thu 4/23

2:10 pm-12:34 am

1 stop13h 24m

$510

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Thu 4/16

11:59 pm-3:31 pm

1 stop12h 32m

Saint Thomas Island Cyril E King

Thu 4/30

1:22 pm-10:59 pm

2 stops12h 37m

$512

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 4/6

7:35 pm-11:38 am

2 stops13h 03m

Saint Thomas Island Cyril E King

Tue 4/21

1:59 pm-10:05 pm

1 stop11h 06m

$517

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 4/20

11:59 pm-3:31 pm

1 stop12h 32m

Saint Thomas Island Cyril E King

Thu 4/23

2:10 pm-10:42 pm

1 stop11h 32m

$520

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 August is another great option to travel to Saint Thomas Island, with average flight prices from Seattle averaging around $522.

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 $617 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 $443 on momondo.

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

You could potentially save up to 11% 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

12h 19m

Direct flights

None
The fastest flight from Seattle to Saint Thomas Island takes 12h 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

  • 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. 12h 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
United AirlinesPriceFrom $264Free CancellationRating
7.4
9,491 reviews
Search United Airlines flights
DeltaPriceFrom $280Free CancellationRating
7.9
8,340 reviews
Search Delta flights
American AirlinesPriceFrom $443Free CancellationRating
7.1
11,503 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 4/26
Sun 5/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the U.S. Virgin Islands

Airports servicing U.S. Virgin Islands

Saint Croix Airport