Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Saint Thomas Island from $235

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 10/23. 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

American Airlines Logo
6:22 pm - 11:50 amSEA-STT
13h 28m2 stops
American Airlines Logo
6:35 pm - 9:36 amSTT-SEA
19h 01m2 stops
$473American Airlines
Find Deal
Sun, Jan 11 - Thu, Jan 22
American Airlines Logo
8:08 pm - 4:00 pmSEA-STT
16h 52m1 stop
American Airlines Logo
5:10 pm - 9:21 amSTT-SEA
19h 11m2 stops
$498American Airlines
Find Deal
Thu, Aug 28 - Sat, Sep 6
American Airlines Logo
12:27 am - 5:25 pmSEA-STT
12h 58m2 stops
American Airlines Logo
4:35 pm - 11:27 pmSTT-SEA
10h 52m1 stop
$518American Airlines
Find Deal
Sat, Jan 10 - Thu, Jan 22
American Airlines Logo
8:51 pm - 4:00 pmSEA-STT
16h 09m1 stop
American Airlines Logo
1:40 pm - 11:59 pmSTT-SEA
13h 19m1 stop
$528American Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
American Airlines Logo
10:01 pm - 10:50 amSEA-STT
9h 49m1 stop
American Airlines Logo
5:20 pm - 10:52 amSTT-SEA
20h 32m2 stops
$553American Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
American Airlines Logo
12:59 am - 4:55 pmSEA-STT
11h 56m2 stops
American Airlines Logo
4:18 pm - 11:40 pmSTT-SEA
11h 22m1 stop
$563American Airlines
Find Deal
Mon, Nov 3 - Sun, Nov 9
Logo
11:55 pm - 11:13 amSEA-STT
32h 18m3 stops
Logo
10:49 am - 5:10 pmSTT-SEA
33h 21m3 stops
$605
Find Deal
Thu, Aug 28 - Sat, Sep 6
United Airlines Logo
12:41 pm - 12:00 pmSEA-STT
19h 19m3 stops
United Airlines Logo
2:15 pm - 10:41 pmSTT-SEA
12h 26m1 stop
$608United Airlines
Find Deal
Tue, Nov 18 - Wed, Nov 26
United Airlines Logo
5:14 pm - 1:01 pmSEA-STT
40h 47m3 stops
United Airlines Logo
12:10 pm - 8:42 pmSTT-SEA
11h 32m1 stop
$679United Airlines
Find Deal
Thu, Aug 28 - Sat, Sep 6
United Airlines Logo
3:25 pm - 12:00 pmSEA-STT
16h 35m2 stops
United Airlines Logo
1:05 pm - 1:16 pmSTT-SEA
28h 11m3 stops
$743United Airlines
Find Deal
Tue, Jan 6 - Wed, Jan 14

American Airlines flights from Seattle to Saint Thomas Island

Our best American Airlines deals on Seattle to Saint Thomas Island flight tickets
American Airlines
Jan 11
SEA6:22 pmSeattle/Tacoma Intl
13h 28m
2 stops
STT11:50 amSaint Thomas Island Cyril E King
Jan 22
STT6:35 pmSaint Thomas Island Cyril E King
19h 01m
2 stops
SEA9:36 amSeattle/Tacoma Intl
$473
Find similar
American Airlines
Aug 28
SEA8:08 pmSeattle/Tacoma Intl
16h 52m
1 stop
STT4:00 pmSaint Thomas Island Cyril E King
Sep 6
STT5:10 pmSaint Thomas Island Cyril E King
19h 11m
2 stops
SEA9:21 amSeattle/Tacoma Intl
$498
Find similar
American Airlines
Jan 10
SEA12:27 amSeattle/Tacoma Intl
12h 58m
2 stops
STT5:25 pmSaint Thomas Island Cyril E King
Jan 22
STT4:35 pmSaint Thomas Island Cyril E King
10h 52m
1 stop
SEA11:27 pmSeattle/Tacoma Intl
$518
Find similar

United Airlines flights from Seattle to Saint Thomas Island

Our best United Airlines deals on Seattle to Saint Thomas Island flight tickets
United Airlines
Nov 18
SEA12:41 pmSeattle/Tacoma Intl
19h 19m
3 stops
STT12:00 pmSaint Thomas Island Cyril E King
Nov 26
STT2:15 pmSaint Thomas Island Cyril E King
12h 26m
1 stop
SEA10:41 pmSeattle/Tacoma Intl
$608
Find similar
United Airlines
Aug 28
SEA5:14 pmSeattle/Tacoma Intl
40h 47m
3 stops
STT1:01 pmSaint Thomas Island Cyril E King
Sep 6
STT12:10 pmSaint Thomas Island Cyril E King
11h 32m
1 stop
SEA8:42 pmSeattle/Tacoma Intl
$679
Find similar
United Airlines
Aug 12
SEA5:10 pmSeattle/Tacoma Intl
16h 07m
2 stops
STT12:17 pmSaint Thomas Island Cyril E King
Aug 14
STT1:19 pmSaint Thomas Island Cyril E King
10h 53m
1 stop
SEA9:12 pmSeattle/Tacoma Intl
$726
Find similar

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 31, 2025.
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

Sun 1/11

6:22 pm-11:50 am

2 stops13h 28m

Saint Thomas Island Cyril E King

Thu 1/22

6:35 pm-9:36 am

2 stops19h 01m

$473

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Thu 8/28

8:08 pm-4:00 pm

1 stop16h 52m

Saint Thomas Island Cyril E King

Sat 9/6

5:10 pm-9:21 am

2 stops19h 11m

$498

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Sat 1/10

12:27 am-5:25 pm

2 stops12h 58m

Saint Thomas Island Cyril E King

Thu 1/22

4:35 pm-11:27 pm

1 stop10h 52m

$518

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 9/17

8:51 pm-4:00 pm

1 stop16h 09m

Saint Thomas Island Cyril E King

Wed 9/24

1:40 pm-11:59 pm

1 stop13h 19m

$528

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Sat 10/11

10:01 pm-10:50 am

1 stop9h 49m

Saint Thomas Island Cyril E King

Sat 10/18

5:20 pm-10:52 am

2 stops20h 32m

$553

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Mon 11/3

12:59 am-4:55 pm

2 stops11h 56m

Saint Thomas Island Cyril E King

Sun 11/9

4:18 pm-11:40 pm

1 stop11h 22m

$563

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Thu 8/28

11:55 pm-11:13 am

3 stops32h 18m

Saint Thomas Island Cyril E King

Sat 9/6

10:49 am-5:10 pm

3 stops33h 21m

$605

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 11/18

12:41 pm-12:00 pm

3 stops19h 19m

Saint Thomas Island Cyril E King

Wed 11/26

2:15 pm-10:41 pm

1 stop12h 26m

$608

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Thu 8/28

5:14 pm-1:01 pm

3 stops40h 47m

Saint Thomas Island Cyril E King

Sat 9/6

12:10 pm-8:42 pm

1 stop11h 32m

$679

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 1/6

3:25 pm-12:00 pm

2 stops16h 35m

Saint Thomas Island Cyril E King

Wed 1/14

1:05 pm-1:16 pm

3 stops28h 11m

$743

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 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 $554.

What is the cheapest day to depart on your flight to Saint Thomas Island?

On average, the least expensive day to fly to Saint Thomas Island from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $598. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Saint Thomas Island for around $880.

What is the cheapest time of day to depart on your flight to Saint Thomas Island?

The cheapest time of day to fly to Saint Thomas Island is in the afternoon when flights can be purchased for as low as $379. Flights to Saint Thomas Island are more costly in the evening, with an average ticket price of $775. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $685 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 $526 on momondo.

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

You could potentially save up to 2% 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?

As of July 2025, prices for Seattle to Saint Thomas Island flights are approximately 99% more expensive when compared to flights at the same time last year.

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

Best Price Found

$235

Fastest flight time

9h 18m

Direct flights

None

Airports in Saint Thomas Island

1 airport
The best one-way flight to Saint Thomas Island from Seattle in the past 72 hours is $235. The best round-trip flight deal from Seattle to Saint Thomas Island found on momondo in the last 72 hours is $473.
The fastest flight from Seattle to Saint Thomas Island takes 9h 18m
There are no direct flights from Seattle to Saint Thomas Island. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Saint Thomas Island Cyril E King Airport.
There is 1 airport near Saint Thomas Island: Saint Thomas Island Cyril E King (STT)
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 18m 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
Spirit AirlinesPriceFrom $199Free CancellationRating
6.3
8,048 reviews
Search Spirit Airlines flights
DeltaPriceFrom $310Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $443Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $495Free CancellationRating
7.4
8,900 reviews
Search United 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
Tue 8/5
Tue 8/12
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